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{"receipt_id":"agent1-2","seq":2,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff -xvs 2>&1 | head -50","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \n[gw0] FAILED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \n\n=================================== FAILURES ===================================\n____________________________ TestFunction.test_diff ____________________________\n[gw0] linux -- Python 3.10.19 /usr/local/bin/python\n\nself = <tests.unit.test_expression_tree.test_functions.TestFunction testMethod=test_diff>\n\n    def test_diff(self):\n        a = pybamm.StateVector(slice(0, 1))\n        func = pybamm.Function(function_test, a)\n>       with self.assertRaisesRegex(\n            NotImplementedError, \"Derivative of base Function class is not implemented\"\n        ):\nE       AssertionError: NotImplementedError not raised\n\ntests/unit/test_expression_tree/test_functions.py:55: AssertionError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff - AssertionError: NotImplementedError not raised\n!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!\n============================== 1 failed in 5.48s ===============================\n","stderr_tail":"","stdout_sha256":"5eb111ac291ca179530cb46fde6215312c0aa971066458837850767ea5f2d5db","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-2.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:26:04.655609Z","duration_s":17.235395,"timed_out":false,"image_before":"9c2949fd-833d-4a0b-b8f9-b89a04cfe422","image_after":"e34079c7-888b-49fb-b286-5ccff2dc590a","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-3","seq":3,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json -xvs 2>&1 | head -80","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n[gw0] FAILED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n\n=================================== FAILURES ===================================\n______________________ TestInterpolant.test_to_from_json _______________________\n[gw0] linux -- Python 3.10.19 /usr/local/bin/python\n\nself = <tests.unit.test_expression_tree.test_interpolant.TestInterpolant testMethod=test_to_from_json>\n\n    def test_to_from_json(self):\n        x = np.linspace(0, 1, 10)\n        y = pybamm.StateVector(slice(0, 2))\n        interp = pybamm.Interpolant(x, 2 * x, y)\n    \n        expected_json = {\n            \"name\": \"interpolating_function\",\n            \"id\": mock.ANY,\n            \"x\": [\n                [\n                    0.0,\n                    0.1111111111111111,\n                    0.2222222222222222,\n                    0.3333333333333333,\n                    0.4444444444444444,\n                    0.5555555555555556,\n                    0.6666666666666666,\n                    0.7777777777777777,\n                    0.8888888888888888,\n                    1.0,\n                ]\n            ],\n            \"y\": [\n                0.0,\n                0.2222222222222222,\n                0.4444444444444444,\n                0.6666666666666666,\n                0.8888888888888888,\n                1.1111111111111112,\n                1.3333333333333333,\n                1.5555555555555554,\n                1.7777777777777777,\n                2.0,\n            ],\n            \"interpolator\": \"linear\",\n            \"extrapolate\": True,\n            \"_num_derivatives\": 0,\n        }\n    \n        # check correct writing to json\n>       self.assertEqual(interp.to_json(), expected_json)\nE       AssertionError: {'nam[31 chars]id': -7005940035639867871, 'x': [[0.0, 0.11111[378 chars]True} != {'nam[31 chars]id': <ANY>, 'x': [[0.0, 0.1111111111111111, 0.[386 chars]': 0}\nE       Diff is 730 characters long. Set self.maxDiff to None to see it.\n\ntests/unit/test_expression_tree/test_interpolant.py:390: AssertionError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json - AssertionError: {'nam[31 chars]id': -7005940035639867871, 'x': [[0.0, 0.11111[378 chars]True} != {'nam[31 chars]id': <ANY>, 'x': [[0.0, 0.1111111111111111, 0.[386 chars]': 0}\nDiff is 730 characters long. Set self.maxDiff to None to see it.\n!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!\n============================== 1 failed in 5.75s ===============================\n","stderr_tail":"","stdout_sha256":"6f80b890db959d78fb1938e9790c49d6af49f998fecbb4e257159c43fdcff7ff","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-3.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:26:20.603563Z","duration_s":17.810186,"timed_out":false,"image_before":"e34079c7-888b-49fb-b286-5ccff2dc590a","image_after":"1e812883-5ab7-4cd5-a3a9-5b9d64aa1654","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-4","seq":4,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff -xvs 2>&1 | head -60","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \n[gw0] FAILED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \n\n=================================== FAILURES ===================================\n__________________________ TestInterpolant.test_diff ___________________________\n[gw0] linux -- Python 3.10.19 /usr/local/bin/python\n\nself = <tests.unit.test_expression_tree.test_interpolant.TestInterpolant testMethod=test_diff>\n\n    def test_diff(self):\n        x = np.linspace(0, 1, 200)\n        y = pybamm.StateVector(slice(0, 2))\n        # linear (derivative should be 2)\n        # linear interpolator cannot be differentiated\n        for interpolator in [\"cubic\", \"pchip\"]:\n            interp_diff = pybamm.Interpolant(\n                x, 2 * x, y, interpolator=interpolator\n            ).diff(y)\n            np.testing.assert_array_almost_equal(\n                interp_diff.evaluate(y=np.array([0.397, 1.5]))[:, 0], np.array([2, 2])\n            )\n        # square (derivative should be 2*x)\n        for interpolator in [\"cubic\", \"pchip\"]:\n            interp_diff = pybamm.Interpolant(\n                x, x**2, y, interpolator=interpolator\n            ).diff(y)\n            np.testing.assert_array_almost_equal(\n                interp_diff.evaluate(y=np.array([0.397, 0.806]))[:, 0],\n                np.array([0.794, 1.612]),\n                decimal=3,\n            )\n    \n        # test 2D interpolation diff fails\n        x = (np.arange(-5.01, 5.01, 0.05), np.arange(-5.01, 5.01, 0.01))\n        xx, yy = np.meshgrid(x[0], x[1], indexing=\"ij\")\n        z = np.sin(xx**2 + yy**2)\n        var1 = pybamm.StateVector(slice(0, 1))\n        var2 = pybamm.StateVector(slice(1, 2))\n        # linear\n        interp = pybamm.Interpolant(x, z, (var1, var2), interpolator=\"linear\")\n        with self.assertRaisesRegex(\n            NotImplementedError,\n            \"differentiation not implemented for functions with more than one child\",\n        ):\n>           interp.diff(var1)\n\ntests/unit/test_expression_tree/test_interpolant.py:341: \n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ \npybamm/expression_tree/functions.py:84: in diff\n","stderr_tail":"","stdout_sha256":"1eebb5dada29239e49af3f02a3d3b33957fbe85c6da5eb51d4de851fd034094a","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-4.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:26:35.993646Z","duration_s":18.370322,"timed_out":false,"image_before":"1e812883-5ab7-4cd5-a3a9-5b9d64aa1654","image_after":"620813b0-5585-4bcb-84d0-3629d16b1789","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-5","seq":5,"branch_id":"agent1","kind":"write","cmd":"/opt/receipts-ca47613f344541419320e4f18c6d9df9/bin/busybox sh -c 'mkdir -p /PyBaMM/pybamm/expression_tree && cp /opt/receipts-ca47613f344541419320e4f18c6d9df9/incoming/f9cd75a17c06f5e25c94e6e1bd04fe89eeb6f63d3ed4fdc70ec46afd95d1b09f /PyBaMM/pybamm/expression_tree/functions.py'","path":"pybamm/expression_tree/functions.py","exit_code":0,"stdout_tail":"","stderr_tail":"","stdout_sha256":"f9cd75a17c06f5e25c94e6e1bd04fe89eeb6f63d3ed4fdc70ec46afd95d1b09f","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-5.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:26:54.677792Z","duration_s":0.004707,"timed_out":false,"image_before":"620813b0-5585-4bcb-84d0-3629d16b1789","image_after":"ee23707c-7e55-4445-b234-5601c121e185","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-6","seq":6,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"def diff\" pybamm/expression_tree/interpolant.py","path":null,"exit_code":1,"stdout_tail":"","stderr_tail":"","stdout_sha256":"e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-6.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:00.631205Z","duration_s":0.003288,"timed_out":false,"image_before":"ee23707c-7e55-4445-b234-5601c121e185","image_after":"472bb58c-7d37-49ec-ac3b-e28d33ba2fc0","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-7","seq":7,"branch_id":"agent1","kind":"write","cmd":"/opt/receipts-3b796406b84e439e827af1507e09afe8/bin/busybox sh -c 'mkdir -p /PyBaMM/pybamm/expression_tree && cp /opt/receipts-3b796406b84e439e827af1507e09afe8/incoming/5f99d3421bb081e3777cf1b47b8272e8ebd5da9c978805a1a045c2296e561c5d /PyBaMM/pybamm/expression_tree/interpolant.py'","path":"pybamm/expression_tree/interpolant.py","exit_code":0,"stdout_tail":"","stderr_tail":"","stdout_sha256":"5f99d3421bb081e3777cf1b47b8272e8ebd5da9c978805a1a045c2296e561c5d","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-7.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:08.060915Z","duration_s":0.00457,"timed_out":false,"image_before":"472bb58c-7d37-49ec-ac3b-e28d33ba2fc0","image_after":"1732e3cf-4991-4331-939b-169283cdb2be","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-8","seq":8,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom scipy import interpolate\n\n# Test CubicSpline derivative\nx = np.linspace(0, 1, 10)\ny = 2 * x\ncs = interpolate.CubicSpline(x, y)\nprint('CubicSpline derivative at 0.5:', cs.derivative()(0.5))\n\n# Test interp1d\nf = interpolate.interp1d(x, y, kind='linear')\nprint('interp1d linear - can we differentiate?')\n\n# Test PchipInterpolator\npc = interpolate.PchipInterpolator(x, y)\nprint('PchipInterpolator - has derivative?', hasattr(pc, 'derivative'))\n\"","path":null,"exit_code":0,"stdout_tail":"CubicSpline derivative at 0.5: 2.0\ninterp1d linear - can we differentiate?\nPchipInterpolator - has derivative? True\n","stderr_tail":"","stdout_sha256":"865e8d2ade167fdf68eb7fc25d8f99cfde4d8343395f9abbe6dd49266baaa4a0","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-8.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:12.599140Z","duration_s":0.886536,"timed_out":false,"image_before":"1732e3cf-4991-4331-939b-169283cdb2be","image_after":"fa1e48d4-f332-4373-86ce-e10133d61f2d","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-9","seq":9,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom scipy import interpolate\n\n# Test CubicSpline derivative\nx = np.linspace(0, 1, 10)\ny = 2 * x\ncs = interpolate.CubicSpline(x, y)\nprint('CubicSpline derivative at 0.5:', cs.derivative()(0.5))\n\n# Test PchipInterpolator derivative\npc = interpolate.PchipInterpolator(x, y)\nprint('PchipInterpolator derivative at 0.5:', pc derivative(0.5))\n\n# Test interp1d derivative\nf = interpolate.interp1d(x, y, kind='linear')\nprint('interp1d linear derivative at 0.5:', f.derivative(0.5))\n\"","path":null,"exit_code":1,"stdout_tail":"","stderr_tail":"  File \"<string>\", line 13\n    print('PchipInterpolator derivative at 0.5:', pc derivative(0.5))\n                                                  ^^^^^^^^^^^^^^^^^^\nSyntaxError: invalid syntax. Perhaps you forgot a comma?\n","stdout_sha256":"3ad1c2c41e8623388085bf0215a681be3001f73598e57764dbc9d1e9e87c768a","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-9.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:16.231988Z","duration_s":0.022650999999999998,"timed_out":false,"image_before":"fa1e48d4-f332-4373-86ce-e10133d61f2d","image_after":"e7ff162f-295d-4962-9fcd-c2596242c7c8","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-10","seq":10,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom scipy import interpolate\n\n# Test CubicSpline derivative\nx = np.linspace(0, 1, 10)\ny = 2 * x\ncs = interpolate.CubicSpline(x, y)\nprint('CubicSpline derivative at 0.5:', cs.derivative()(0.5))\n\n# Test PchipInterpolator derivative\npc = interpolate.PchipInterpolator(x, y)\nprint('PchipInterpolator derivative at 0.5:', pc.derivative(0.5))\n\n# Test interp1d derivative\nf = interpolate.interp1d(x, y, kind='linear')\nprint('interp1d linear derivative at 0.5:', f.derivative(0.5))\n\"","path":null,"exit_code":1,"stdout_tail":"CubicSpline derivative at 0.5: 2.0\n","stderr_tail":"Traceback (most recent call last):\n  File \"<string>\", line 13, in <module>\n  File \"/usr/local/lib/python3.10/site-packages/scipy/interpolate/_interpolate.py\", line 893, in derivative\n    c2 = self.c[:-nu, :].copy()\nTypeError: slice indices must be integers or None or have an __index__ method\n","stdout_sha256":"b4af61322d7d48edcfe4b0fbdca0d7674208e6896ec95f282e9801a62a32feb5","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-10.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:19.549585Z","duration_s":0.9033,"timed_out":false,"image_before":"e7ff162f-295d-4962-9fcd-c2596242c7c8","image_after":"94f90e4d-adc1-41ed-98a6-cd2d8f7989f9","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-11","seq":11,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom scipy import interpolate\n\n# Test CubicSpline derivative\nx = np.linspace(0, 1, 10)\ny = 2 * x\ncs = interpolate.CubicSpline(x, y)\nprint('CubicSpline derivative at 0.5:', cs.derivative()(0.5))\n\n# Test PchipInterpolator derivative - need different approach\npc = interpolate.PchipInterpolator(x, y)\n# PchipInterpolator doesn't have derivative method directly, but we can use \n# the fact that it's a piecewise function\nprint('PchipInterpolator type:', type(pc))\n\"","path":null,"exit_code":0,"stdout_tail":"CubicSpline derivative at 0.5: 2.0\nPchipInterpolator type: <class 'scipy.interpolate._cubic.PchipInterpolator'>\n","stderr_tail":"","stdout_sha256":"83b021b3f956e67770375216ddb4aa1cb9bcf9d0b5f99516e776d2347c563ad9","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-11.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:23.001361Z","duration_s":0.88614,"timed_out":false,"image_before":"94f90e4d-adc1-41ed-98a6-cd2d8f7989f9","image_after":"16530183-ea6d-4312-81c3-b9c7bb2461cf","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-12","seq":12,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom scipy import interpolate\n\nx = np.linspace(0, 1, 200)\ny = 2 * x\n\n# Linear interpolator\nf_linear = interpolate.interp1d(x, y, kind='linear')\ntry:\n    print('Linear derivative:', f_linear.derivative(0.397))\nexcept Exception as e:\n    print('Linear derivative error:', type(e).__name__, e)\n\n# Cubic interpolator\nf_cubic = interpolate.CubicSpline(x, y)\ntry:\n    print('Cubic derivative at 0.397:', f_cubic.derivative()(0.397))\nexcept Exception as e:\n    print('Cubic derivative error:', type(e).__name__, e)\n\n# Pchip interpolator  \nf_pchip = interpolate.PchipInterpolator(x, y)\ntry:\n    print('Pchip derivative at 0.397:', f_pchip(0.397))  # just value, not derivative\nexcept Exception as e:\n    print('Pchip error:', type(e).__name__, e)\n\"","path":null,"exit_code":0,"stdout_tail":"Linear derivative error: AttributeError 'interp1d' object has no attribute 'derivative'\nCubic derivative at 0.397: 2.0\nPchip derivative at 0.397: 0.794\n","stderr_tail":"","stdout_sha256":"633b71683e652f4cf06c87246b0f8575fd7faf6fb3ff2032503ffbf6316340b5","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-12.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:28.757324Z","duration_s":0.901413,"timed_out":false,"image_before":"16530183-ea6d-4312-81c3-b9c7bb2461cf","image_after":"1968d8f5-047e-4c7a-aaa6-f24ef137e1b3","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-13","seq":13,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && wc -l pybamm/expression_tree/interpolant.py","path":null,"exit_code":0,"stdout_tail":"357 pybamm/expression_tree/interpolant.py\n","stderr_tail":"","stdout_sha256":"6204176908c719d66d2574a1af363f5f1201aace9d5f37401b5abafdf0328698","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-13.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:42.078720Z","duration_s":0.002808,"timed_out":false,"image_before":"1968d8f5-047e-4c7a-aaa6-f24ef137e1b3","image_after":"c7004636-6aea-4871-9518-4b715b921ba0","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-14","seq":14,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"def diff\" pybamm/expression_tree/interpolant.py","path":null,"exit_code":0,"stdout_tail":"16:    def diff(self, variable):\n","stderr_tail":"","stdout_sha256":"ca159e27144b372f830abeaa7d156f5682eedeb8be2244cd3eea96d9342c34a4","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-14.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:45.553201Z","duration_s":0.00282,"timed_out":false,"image_before":"c7004636-6aea-4871-9518-4b715b921ba0","image_after":"1d5f99b9-ebf7-48a7-b5c3-ce202a9ed42e","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-15","seq":15,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && awk 'NR>=1 && NR<=60 {print NR\": \"$0}' pybamm/expression_tree/interpolant.py","path":null,"exit_code":0,"stdout_tail":"1: #\n2: # Interpolating class\n3: #\n4: from __future__ import annotations\n5: import numpy as np\n6: from scipy import interpolate\n7: from collections.abc import Sequence\n8: import numbers\n9: \n10: import pybamm\n11: \n12: \n13: class Interpolant(pybamm.Function):\n14:     \"\"\"...\"\"\"\n15: \n16:     def diff(self, variable):\n17:         \"\"\"Compute the derivative of the interpolant with respect to a variable.\n18:         \n19:         For 1D interpolants with a single child, the derivative can be computed.\n20:         For multi-child interpolants, differentiation is not implemented.\n21:         \"\"\"\n22:         # If the variable is not one of our children, return 0\n23:         if variable not in self.orphans:\n24:             return pybamm.Scalar(0)\n25:         \n26:         # Check if we have more than one child - differentiation not implemented\n27:         if len(self.children) > 1:\n28:             raise NotImplementedError(\n29:                 \"differentiation not implemented for functions with more than one child\"\n30:             )\n31:         \n32:         # For single child 1D interpolant, compute derivative\n33:         # The interpolant function is self.function (from scipy)\n34:         # We need to compute the derivative numerically or analytically\n35:         # For now, raise NotImplementedError for the base case\n36:         # and let specific interpolator types handle it if needed\n37:         raise NotImplementedError(\n38:             \"Differentiation of interpolant not fully implemented\"\n39:         )\n40: \n41: \n42: class Interpolant(pybamm.Function):\n43:     \"\"\"\n44:     Interpolate data in 1D, 2D, or 3D. Interpolation in 3D requires the input data to be\n45:     on a regular grid (as per scipy.interpolate.RegularGridInterpolator).\n46: \n47:     Parameters\n48:     ----------\n49:     x : iterable of :class:`numpy.ndarray`\n50:         The data point coordinates. If 1-D, then this is an array(s) of real values. If,\n51:         2D or 3D interpolation, then this is to ba a tuple of 1D arrays (one for each\n52:         dimension) which together define the coordinates of the points.\n53:     y : :class:`numpy.ndarray`\n54:         The values of the function to interpolate at the data points. In 2D and 3D, this\n55:         should be a matrix of two and three dimensions respectively.\n56:     children : iterable of :class:`pybamm.Symbol`\n57:         Node(s) to use when evaluating the interpolant. Each child corresponds to an\n58:         entry of x\n59:     name : str, optional\n60:         Name of the interpolant. Default is None, in which case the name \"interpolating\n","stderr_tail":"","stdout_sha256":"40d78af5582aec9b78163646b1667c3c62a87d2dcf55512a99a5d0b8cf596ed5","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-15.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:49.912384Z","duration_s":0.002663,"timed_out":false,"image_before":"1d5f99b9-ebf7-48a7-b5c3-ce202a9ed42e","image_after":"258fa10d-64b6-4018-8b24-3317ef8789f7","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-16","seq":16,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"import pybamm; print(pybamm.Interpolant.__module__); i = pybamm.Interpolant.__doc__; print(i[:100] if i else 'None')\"","path":null,"exit_code":0,"stdout_tail":"pybamm.expression_tree.interpolant\n\n    Interpolate data in 1D, 2D, or 3D. Interpolation in 3D requires the input data to be\n    on a r\n","stderr_tail":"","stdout_sha256":"dd94f3ec06f7ba99483dc2e6614b45a6e9d0144521654829d13a20f9322ab960","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-16.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:52.873809Z","duration_s":2.33582,"timed_out":false,"image_before":"258fa10d-64b6-4018-8b24-3317ef8789f7","image_after":"b8687b03-2d2a-40cd-bdfa-76ee7fa9d1bb","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-17","seq":17,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && head -70 pybamm/expression_tree/interpolant.py | tail -30","path":null,"exit_code":0,"stdout_tail":"\nclass Interpolant(pybamm.Function):\n    \"\"\"\n    Interpolate data in 1D, 2D, or 3D. Interpolation in 3D requires the input data to be\n    on a regular grid (as per scipy.interpolate.RegularGridInterpolator).\n\n    Parameters\n    ----------\n    x : iterable of :class:`numpy.ndarray`\n        The data point coordinates. If 1-D, then this is an array(s) of real values. If,\n        2D or 3D interpolation, then this is to ba a tuple of 1D arrays (one for each\n        dimension) which together define the coordinates of the points.\n    y : :class:`numpy.ndarray`\n        The values of the function to interpolate at the data points. In 2D and 3D, this\n        should be a matrix of two and three dimensions respectively.\n    children : iterable of :class:`pybamm.Symbol`\n        Node(s) to use when evaluating the interpolant. Each child corresponds to an\n        entry of x\n    name : str, optional\n        Name of the interpolant. Default is None, in which case the name \"interpolating\n        function\" is given.\n    interpolator : str, optional\n        Which interpolator to use. Can be \"linear\", \"cubic\", or \"pchip\". Default is\n        \"linear\". For 3D interpolation, only \"linear\" an \"cubic\" are currently\n        supported.\n    extrapolate : bool, optional\n        Whether to extrapolate for points that are outside of the parametrisation\n        range, or return NaN (following default behaviour from scipy). Default is True.\n        Generally, it is best to set this to be False for 3D interpolation due to\n        the higher potential for errors in extrapolation.\n","stderr_tail":"","stdout_sha256":"6c1f85219eefe59b1bb583a231ccf638f18c6203312b5bcf410a85efa3715190","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-17.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:27:58.678405Z","duration_s":0.004025,"timed_out":false,"image_before":"b8687b03-2d2a-40cd-bdfa-76ee7fa9d1bb","image_after":"993e05c7-0dfd-4ce7-8fe4-cffdfc4fea9c","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-18","seq":18,"branch_id":"agent1","kind":"write","cmd":"/opt/receipts-33067aa3339341db81ffda416af446c0/bin/busybox sh -c 'mkdir -p /PyBaMM/pybamm/expression_tree && cp /opt/receipts-33067aa3339341db81ffda416af446c0/incoming/d75fbdca92cad86657a6728a535bb701e18b1420491b318ed06cc40463841994 /PyBaMM/pybamm/expression_tree/interpolant.py'","path":"pybamm/expression_tree/interpolant.py","exit_code":0,"stdout_tail":"","stderr_tail":"","stdout_sha256":"d75fbdca92cad86657a6728a535bb701e18b1420491b318ed06cc40463841994","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-18.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:03.972508Z","duration_s":0.004354,"timed_out":false,"image_before":"993e05c7-0dfd-4ce7-8fe4-cffdfc4fea9c","image_after":"055b83a2-b250-45e1-80ae-443286694965","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-19","seq":19,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && head -50 pybamm/expression_tree/interpolant.py","path":null,"exit_code":0,"stdout_tail":"#\n# Interpolating class\n#\nfrom __future__ import annotations\nimport numpy as np\nfrom scipy import interpolate\nfrom collections.abc import Sequence\nimport numbers\n\nimport pybamm\n\n\nclass Interpolant(pybamm.Function):\n    \"\"\"\n    Interpolate data in 1D, 2D, or 3D. Interpolation in 3D requires the input data to be\n    on a regular grid (as per scipy.interpolate.RegularGridInterpolator).\n\n    Parameters\n    ----------\n    x : iterable of :class:`numpy.ndarray`\n        The data point coordinates. If 1-D, then this is an array(s) of real values. If,\n        2D or 3D interpolation, then this is to ba a tuple of 1D arrays (one for each\n        dimension) which together define the coordinates of the points.\n    y : :class:`numpy.ndarray`\n        The values of the function to interpolate at the data points. In 2D and 3D, this\n        should be a matrix of two and three dimensions respectively.\n    children : iterable of :class:`pybamm.Symbol`\n        Node(s) to use when evaluating the interpolant. Each child corresponds to an\n        entry of x\n    name : str, optional\n        Name of the interpolant. Default is None, in which case the name \"interpolating\n        function\" is given.\n    interpolator : str, optional\n        Which interpolator to use. Can be \"linear\", \"cubic\", or \"pchip\". Default is\n        \"linear\". For 3D interpolation, only \"linear\" an \"cubic\" are currently\n        supported.\n    extrapolate : bool, optional\n        Whether to extrapolate for points that are outside of the parametrisation\n        range, or return NaN (following default behaviour from scipy). Default is True.\n        Generally, it is best to set this to be False for 3D interpolation due to\n        the higher potential for errors in extrapolation.\n    \"\"\"\n\n    def __init__(\n        self,\n        x: np.ndarray | Sequence[np.ndarray],\n        y: np.ndarray,\n        children: Sequence[pybamm.Symbol] | pybamm.Time,\n        name: str | None = None,\n        interpolator: str | None = \"linear\",\n","stderr_tail":"","stdout_sha256":"9c06d2846d668992640f441f2a725c9968e5aa32a1eb0c296479111022eca440","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-19.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:06.675259Z","duration_s":0.002605,"timed_out":false,"image_before":"055b83a2-b250-45e1-80ae-443286694965","image_after":"752d302a-7f5e-4ad1-9234-243db0648e17","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-20","seq":20,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"def \" pybamm/expression_tree/interpolant.py | head -20","path":null,"exit_code":0,"stdout_tail":"44:    def __init__(\n201:    def _from_json(cls, snippet: dict):\n219:    def entries_string(self):\n223:    def entries_string(self, value):\n235:    def set_id(self):\n247:    def create_copy(self, new_children=None, perform_simplifications=True):\n261:    def _function_evaluate(self, evaluated_children):\n314:    def to_json(self):\n","stderr_tail":"","stdout_sha256":"6eaceba6d89e9ae9477907c4dc866d84bdce0fb1304595eb3f64a1e2e3ca8db0","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-20.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:09.135601Z","duration_s":0.004207,"timed_out":false,"image_before":"752d302a-7f5e-4ad1-9234-243db0648e17","image_after":"0f4842b6-5184-412c-b34b-d4038e938878","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-21","seq":21,"branch_id":"agent1","kind":"write","cmd":"/opt/receipts-1e74de8e0c3f4ef4a86deebcb5113b98/bin/busybox sh -c 'mkdir -p /PyBaMM/pybamm/expression_tree && cp /opt/receipts-1e74de8e0c3f4ef4a86deebcb5113b98/incoming/0d6255e9544a21ae6cf9133125b09e1aa534af2c039b47e59b87531925ca3a12 /PyBaMM/pybamm/expression_tree/interpolant.py'","path":"pybamm/expression_tree/interpolant.py","exit_code":0,"stdout_tail":"","stderr_tail":"","stdout_sha256":"0d6255e9544a21ae6cf9133125b09e1aa534af2c039b47e59b87531925ca3a12","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-21.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:17.703299Z","duration_s":0.0051909999999999994,"timed_out":false,"image_before":"0f4842b6-5184-412c-b34b-d4038e938878","image_after":"036586f0-aea8-463c-89d7-7672a097ef35","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-22","seq":22,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff -xvs 2>&1 | head -40","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \n[gw0] PASSED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \n\n============================== 1 passed in 5.34s ===============================\n","stderr_tail":"","stdout_sha256":"f08cecde772ff2ff9ce3974783e05825e395ed99088f4e4525116ba49a63f2ea","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-22.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:28.341264Z","duration_s":16.721239,"timed_out":false,"image_before":"036586f0-aea8-463c-89d7-7672a097ef35","image_after":"def2864a-3ffa-47bb-b536-0baf9ac2e054","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-23","seq":23,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff -xvs 2>&1 | head -60","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \n[gw0] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \n\n============================== 1 passed in 5.42s ===============================\n","stderr_tail":"","stdout_sha256":"755e69b01f737ecc4246582687f6284af7860736339afb34c16ac31f0e42df2c","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-23.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:45.733400Z","duration_s":16.97684,"timed_out":false,"image_before":"def2864a-3ffa-47bb-b536-0baf9ac2e054","image_after":"6db89948-0e51-4315-9fef-90cbac5cfbb5","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-24","seq":24,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json -xvs 2>&1 | head -60","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n[gw0] FAILED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n\n=================================== FAILURES ===================================\n______________________ TestInterpolant.test_to_from_json _______________________\n[gw0] linux -- Python 3.10.19 /usr/local/bin/python\n\nself = <tests.unit.test_expression_tree.test_interpolant.TestInterpolant testMethod=test_to_from_json>\n\n    def test_to_from_json(self):\n        x = np.linspace(0, 1, 10)\n        y = pybamm.StateVector(slice(0, 2))\n        interp = pybamm.Interpolant(x, 2 * x, y)\n    \n        expected_json = {\n            \"name\": \"interpolating_function\",\n            \"id\": mock.ANY,\n            \"x\": [\n                [\n                    0.0,\n                    0.1111111111111111,\n                    0.2222222222222222,\n                    0.3333333333333333,\n                    0.4444444444444444,\n                    0.5555555555555556,\n                    0.6666666666666666,\n                    0.7777777777777777,\n                    0.8888888888888888,\n                    1.0,\n                ]\n            ],\n            \"y\": [\n                0.0,\n                0.2222222222222222,\n                0.4444444444444444,\n                0.6666666666666666,\n                0.8888888888888888,\n                1.1111111111111112,\n                1.3333333333333333,\n                1.5555555555555554,\n                1.7777777777777777,\n                2.0,\n            ],\n            \"interpolator\": \"linear\",\n            \"extrapolate\": True,\n            \"_num_derivatives\": 0,\n        }\n    \n        # check correct writing to json\n","stderr_tail":"","stdout_sha256":"92c6f27f798c42029e0b050c24a270a9a4c71f738996c33eff141aeb9e9fb948","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-24.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:28:56.204479Z","duration_s":18.325004,"timed_out":false,"image_before":"6db89948-0e51-4315-9fef-90cbac5cfbb5","image_after":"03dd7552-1f4f-43ac-8cd8-f0fc92d83b4d","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-25","seq":25,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"def to_json\" pybamm/expression_tree/interpolant.py","path":null,"exit_code":0,"stdout_tail":"355:    def to_json(self):\n","stderr_tail":"","stdout_sha256":"88ee3bb59d9fa73098193607da117681cc90d62d59df5ea759344ca84c7e0e45","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-25.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:12.735464Z","duration_s":0.004444,"timed_out":false,"image_before":"03dd7552-1f4f-43ac-8cd8-f0fc92d83b4d","image_after":"2a4746b5-7678-456f-9b4c-727a09c99d8e","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-26","seq":26,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -r \"mock.ANY\" tests/unit/test_expression_tree/ | head -10","path":null,"exit_code":0,"stdout_tail":"tests/unit/test_expression_tree/test_array.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_binary_operators.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_binary_operators.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_binary_operators.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_binary_operators.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_binary_operators.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_concatenations.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_concatenations.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_input_parameter.py:            \"id\": mock.ANY,\ntests/unit/test_expression_tree/test_matrix.py:            \"id\": mock.ANY,\n","stderr_tail":"","stdout_sha256":"63aa541d350a5c7c8abfbdc658bf4630d5e361ecba6be9aee250bd2dd37f6a24","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-26.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:20.299259Z","duration_s":0.005584,"timed_out":false,"image_before":"2a4746b5-7678-456f-9b4c-727a09c99d8e","image_after":"f894231e-4cbe-4935-92ec-af2c94d84e29","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-27","seq":27,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -B5 -A5 '\"id\": mock.ANY' tests/unit/test_expression_tree/test_binary_operators.py | head -30","path":null,"exit_code":0,"stdout_tail":"\n    def test_to_json(self):\n        # Test Addition\n        add_json = {\n            \"name\": \"+\",\n            \"id\": mock.ANY,\n            \"domains\": EMPTY_DOMAINS,\n        }\n        add = pybamm.Addition(2, 4)\n\n        self.assertEqual(add.to_json(), add_json)\n--\n        self.assertEqual(pybamm.Addition._from_json(add_json), add)\n\n        # Test Power\n        pow_json = {\n            \"name\": \"**\",\n            \"id\": mock.ANY,\n            \"domains\": EMPTY_DOMAINS,\n        }\n\n        pow = pybamm.Power(7, 2)\n        self.assertEqual(pow.to_json(), pow_json)\n--\n        self.assertEqual(pybamm.Power._from_json(pow_json), pow)\n\n        # Test Division\n        div_json = {\n            \"name\": \"/\",\n            \"id\": mock.ANY,\n","stderr_tail":"","stdout_sha256":"8f1c0d69e5cf9d459334d61d72dbe370f2fe9a461ea4745b4b59fa220076b7c1","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-27.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:22.839081Z","duration_s":0.00383,"timed_out":false,"image_before":"f894231e-4cbe-4935-92ec-af2c94d84e29","image_after":"abd65627-b51e-472e-8fd5-de955f60092e","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-28","seq":28,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport mock\na = {'id': -7005940035639867871, 'x': [[0.0]]}\nb = {'id': mock.ANY, 'x': [[0.0]]}\ntry:\n    print('Equal:', a == b)\nexcept Exception as e:\n    print('Error:', e)\n\"","path":null,"exit_code":1,"stdout_tail":"","stderr_tail":"Traceback (most recent call last):\n  File \"<string>\", line 2, in <module>\nModuleNotFoundError: No module named 'mock'\n","stdout_sha256":"ca0497c60711f2f1b09bf342e73980eb542132bbf1e1ecfcf96fcdb72a42ab87","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-28.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:25.209897Z","duration_s":0.023034,"timed_out":false,"image_before":"abd65627-b51e-472e-8fd5-de955f60092e","image_after":"6c3b0106-23f3-4121-9c61-c55093b0e4e8","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-29","seq":29,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nfrom unittest import mock\na = {'id': -7005940035639867871, 'x': [[0.0]]}\nb = {'id': mock.ANY, 'x': [[0.0]]}\ntry:\n    print('Equal:', a == b)\nexcept Exception as e:\n    print('Error:', e)\n\"","path":null,"exit_code":0,"stdout_tail":"Equal: True\n","stderr_tail":"","stdout_sha256":"1428ddebf0f576252b2067981d82a3d278f8914588787ec176416750eb0336e9","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-29.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:27.328467Z","duration_s":0.064055,"timed_out":false,"image_before":"6c3b0106-23f3-4121-9c61-c55093b0e4e8","image_after":"8eac43b5-0913-4e4b-a0f4-4adbcd5e0268","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-30","seq":30,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom tests import TestCase\nimport pybamm\nimport unittest.mock as mock\nimport numpy as np\n\nx = np.linspace(0, 1, 10)\ny = pybamm.StateVector(slice(0, 2))\ninterp = pybamm.Interpolant(x, 2 * x, y)\n\njson_output = interp.to_json()\nprint('JSON output id:', json_output['id'])\nprint('JSON output x:', json_output['x'][:2], '...')\n\nexpected_json = {\n    'name': 'interpolating_function',\n    'id': mock.ANY,\n    'x': [\n        [\n            0.0,\n            0.1111111111111111,\n            0.2222222222222222,\n            0.3333333333333333,\n            0.4444444444444444,\n            0.5555555555555556,\n            0.6666666666666666,\n            0.7777777777777777,\n            0.8888888888888888,\n            1.0,\n        ]\n    ],\n    'y': [\n        0.0,\n        0.2222222222222222,\n        0.4444444444444444,\n        0.6666666666666666,\n        0.8888888888888888,\n        1.1111111111111112,\n        1.3333333333333333,\n        1.5555555555555554,\n        1.7777777777777777,\n        2.0,\n    ],\n    'interpolator': 'linear',\n    'extrapolate': True,\n    '_num_derivatives': 0,\n}\n\nprint()\nprint('Expected id:', expected_json['id'])\nprint('Actual id matches ANY:', expected_json['id'] == mock.ANY)\n\n# Now compare directly\ntry:\n    result = json_output == expected_json\n    print('Full dict equal:', result)\nexcept Exception as e:\n    print('Error comparing:', e)\n    \n# Check each key\nprint()\nprint('name match:', json_output['name'] == expected_json['name'])\nprint('x match:', json_output['x'] == expected_json['x'])\nprint('y match:', json_output['y'] == expected_json['y'])\nprint('interpolator match:', json_output['interpolator'] == expected_json['interpolator'])\nprint('extrapolate match:', json_output['extrapolate'] == expected_json['extrapolate'])\nprint('_num_derivatives match:', json_output.get('_num_derivatives') == expected_json.get('_num_derivatives'))\n\"","path":null,"exit_code":0,"stdout_tail":"JSON output id: 7262116354635065589\nJSON output x: [[0.0, 0.1111111111111111, 0.2222222222222222, 0.3333333333333333, 0.4444444444444444, 0.5555555555555556, 0.6666666666666666, 0.7777777777777777, 0.8888888888888888, 1.0]] ...\n\nExpected id: <ANY>\nActual id matches ANY: True\nFull dict equal: False\n\nname match: True\nx match: True\ny match: True\ninterpolator match: True\nextrapolate match: True\n_num_derivatives match: False\n","stderr_tail":"","stdout_sha256":"f72408f90b65e97c78e54408cfa3845da32d66edc5dd3ce88af1fb30072e1e14","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-30.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:33.014512Z","duration_s":2.415418,"timed_out":false,"image_before":"8eac43b5-0913-4e4b-a0f4-4adbcd5e0268","image_after":"6929cfd1-8cdb-4661-b3f0-553ab750ddb1","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-31","seq":31,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport numpy as np\nfrom tests import TestCase\nimport pybamm\nimport unittest.mock as mock\n\nx = np.linspace(0, 1, 10)\ny = pybamm.StateVector(slice(0, 2))\ninterp = pybamm.Interpolant(x, 2 * x, y)\n\njson_output = interp.to_json()\nprint('JSON keys:', list(json_output.keys()))\nprint('JSON output:', json_output)\n\"","path":null,"exit_code":0,"stdout_tail":"JSON keys: ['name', 'id', 'x', 'y', 'interpolator', 'extrapolate']\nJSON output: {'name': 'interpolating_function', 'id': -3126851170986337197, 'x': [[0.0, 0.1111111111111111, 0.2222222222222222, 0.3333333333333333, 0.4444444444444444, 0.5555555555555556, 0.6666666666666666, 0.7777777777777777, 0.8888888888888888, 1.0]], 'y': [0.0, 0.2222222222222222, 0.4444444444444444, 0.6666666666666666, 0.8888888888888888, 1.1111111111111112, 1.3333333333333333, 1.5555555555555554, 1.7777777777777777, 2.0], 'interpolator': 'linear', 'extrapolate': True}\n","stderr_tail":"","stdout_sha256":"ca682b009eccc22412d14c343ddbb9d2cf70a933d1ffa1017c162565d9575d5c","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-31.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:43.215444Z","duration_s":2.451175,"timed_out":false,"image_before":"6929cfd1-8cdb-4661-b3f0-553ab750ddb1","image_after":"5667a4b4-fe95-4e29-afec-c5dba3fd711f","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-32","seq":32,"branch_id":"agent1","kind":"write","cmd":"/opt/receipts-2e6ba143fb144182950a639ce9fba68e/bin/busybox sh -c 'mkdir -p /PyBaMM/pybamm/expression_tree && cp /opt/receipts-2e6ba143fb144182950a639ce9fba68e/incoming/86f1ab1bbd249dc47ff58decf6ba35ee1c079d6f6c3725cd686578b446800fc6 /PyBaMM/pybamm/expression_tree/interpolant.py'","path":"pybamm/expression_tree/interpolant.py","exit_code":0,"stdout_tail":"","stderr_tail":"","stdout_sha256":"86f1ab1bbd249dc47ff58decf6ba35ee1c079d6f6c3725cd686578b446800fc6","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-32.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:50.945378Z","duration_s":0.005104,"timed_out":false,"image_before":"5667a4b4-fe95-4e29-afec-c5dba3fd711f","image_after":"fc5531f5-9540-40a9-a293-fdc86985c728","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-33","seq":33,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json -xvs 2>&1 | head -50","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n[gw0] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n\n============================== 1 passed in 5.64s ===============================\n","stderr_tail":"","stdout_sha256":"1eefd42ae4492a2ffab65d362747678fa1e647ce07d3a0725f709a58c33406aa","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-33.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:29:54.508065Z","duration_s":17.023998,"timed_out":false,"image_before":"fc5531f5-9540-40a9-a293-fdc86985c728","image_after":"8b476b54-adba-4c19-93ca-492837d40902","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-34","seq":34,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py tests/unit/test_expression_tree/test_interpolant.py -xvs 2>&1 | tail -50","path":null,"exit_code":0,"stdout_tail":"                    return Array(a.flat, a.shape)  # works with e.g. NumPy arrays\n    \n        if not isinstance(a, str):\n            if _is_numpy_instance(a):\n                import numpy as np\n                assert not isinstance(a, np.number)\n                if isinstance(a, np.ndarray):\n                    # Scalar arrays (those with zero dimensions) have sympify\n                    # called on the scalar element.\n                    if a.ndim == 0:\n                        try:\n                            return sympify(a.item(),\n                                           locals=locals,\n                                           convert_xor=convert_xor,\n                                           strict=strict,\n                                           rational=rational,\n                                           evaluate=evaluate)\n                        except SympifyError:\n                            pass\n            elif hasattr(a, '__float__'):\n                # float and int can coerce size-one numpy arrays to their lone\n                # element.  See issue https://github.com/numpy/numpy/issues/10404.\n                return sympify(float(a))\n            elif hasattr(a, '__int__'):\n                return sympify(int(a))\n    \n        if strict:\n            raise SympifyError(a)\n    \n        if iterable(a):\n            try:\n                return type(a)([sympify(x, locals=locals, convert_xor=convert_xor,\n                    rational=rational, evaluate=evaluate) for x in a])\n            except TypeError:\n                # Not all iterables are rebuildable with their type.\n                pass\n    \n        if not isinstance(a, str):\n>           raise SympifyError('cannot sympify object of type %r' % type(a))\nE           sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n\n/usr/local/lib/python3.10/site-packages/sympy/core/sympify.py:491: SympifyError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh - NotImplementedError: Derivative of base Function class is not implemented\nFAILED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_log - NotImplementedError: Derivative of base Function class is not implemented\nFAILED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_erfc - NotImplementedError: Derivative of base Function class is not implemented\nFAILED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_to_equation - sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 4 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!\n========================= 4 failed, 6 passed in 6.31s ==========================\n","stderr_tail":"","stdout_sha256":"c7c965457b9c249336538e7e8dc946a7a77d7b7bbebae9e19b718ae96918fae9","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-34.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:30:10.462985Z","duration_s":18.859885,"timed_out":false,"image_before":"8b476b54-adba-4c19-93ca-492837d40902","image_after":"51e7f87f-611d-4496-b4d0-76058089cc28","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-35","seq":35,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh -xvs 2>&1 | head -60","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [1 item]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh \n[gw0] FAILED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh \n\n=================================== FAILURES ===================================\n______________________ TestSpecificFunctions.test_arcsinh ______________________\n[gw0] linux -- Python 3.10.19 /usr/local/bin/python\n\nself = <tests.unit.test_expression_tree.test_functions.TestSpecificFunctions testMethod=test_arcsinh>\n\n    def test_arcsinh(self):\n        a = pybamm.InputParameter(\"a\")\n        fun = pybamm.arcsinh(a)\n        self.assertIsInstance(fun, pybamm.Arcsinh)\n        self.assertEqual(fun.evaluate(inputs={\"a\": 3}), np.arcsinh(3))\n        h = 0.0000001\n        self.assertAlmostEqual(\n>           fun.diff(a).evaluate(inputs={\"a\": 3}),\n            (\n                pybamm.arcsinh(pybamm.Scalar(3 + h)).evaluate()\n                - fun.evaluate(inputs={\"a\": 3})\n            )\n            / h,\n            places=5,\n        )\n\ntests/unit/test_expression_tree/test_functions.py:127: \n_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ \n\nself = Arcsinh(0x1e512f79a185e005, function (arcsinh), children=['a'], domains={})\nvariable = InputParameter(-0x1cf1d91ff925b8ad, a, children=[], domains={})\n\n    def diff(self, variable: pybamm.Symbol):\n        \"\"\"See :meth:`pybamm.Symbol.diff()`.\"\"\"\n        if variable == self:\n            return pybamm.Scalar(1)\n        else:\n>           raise NotImplementedError(\n                \"Derivative of base Function class is not implemented\"\n            )\nE           NotImplementedError: Derivative of base Function class is not implemented\n\npybamm/expression_tree/functions.py:78: NotImplementedError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh - NotImplementedError: Derivative of base Function class is not implemented\n!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!\n============================== 1 failed in 5.67s ===============================\n","stderr_tail":"","stdout_sha256":"f0fdc9899e9eeedeb7cd9a104141bfc3ad617762cce6001b6aa90a10960b31bd","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-35.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:30:27.162068Z","duration_s":17.095672,"timed_out":false,"image_before":"51e7f87f-611d-4496-b4d0-76058089cc28","image_after":"62b62de1-000d-4f99-bbff-5b2ace7fd38e","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-36","seq":36,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"class SpecificFunction\" pybamm/expression_tree/functions.py","path":null,"exit_code":0,"stdout_tail":"237:class SpecificFunction(Function):\n","stderr_tail":"","stdout_sha256":"f6e18d488e14ae8cba2afc056e65f231444ee027ea8e9b74a60c00d5f0f55c70","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-36.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:30:46.200662Z","duration_s":0.00282,"timed_out":false,"image_before":"62b62de1-000d-4f99-bbff-5b2ace7fd38e","image_after":"8ddb709b-ba16-4f37-b327-cba8c215c5d1","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-37","seq":37,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"function_test\" tests/unit/test_expression_tree/test_functions.py | head -5","path":null,"exit_code":0,"stdout_tail":"14:    function_test,\n15:    multi_var_function_test,\n26:        summ = pybamm.Function(multi_var_function_test, 1, 2)\n33:        funca = pybamm.Function(function_test, a)\n34:        self.assertEqual(funca.name, \"function (function_test)\")\n","stderr_tail":"","stdout_sha256":"2ab5a646d519f05743580a838f39b4f784b74cfd5127cb99dfcf438d24c601b4","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-37.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:30:53.341254Z","duration_s":0.004443,"timed_out":false,"image_before":"8ddb709b-ba16-4f37-b327-cba8c215c5d1","image_after":"4621ce6c-0100-418a-9424-1fbc6c3efef2","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-38","seq":38,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -n \"def function_test\" tests/ -r","path":null,"exit_code":0,"stdout_tail":"tests/shared.py:258:def function_test(arg):\n","stderr_tail":"","stdout_sha256":"ea1dcc5948a420fa7bbc329e707c267b587a383aed6fa37e3baebef2fd635aee","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-38.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:30:55.854733Z","duration_s":0.010248,"timed_out":false,"image_before":"4621ce6c-0100-418a-9424-1fbc6c3efef2","image_after":"7754fbf4-7813-403a-ad9b-513528ea4656","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-39","seq":39,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && sed -n '258,265p' tests/shared.py","path":null,"exit_code":0,"stdout_tail":"def function_test(arg):\n    return arg + arg\n\n\ndef multi_var_function_test(arg1, arg2):\n    return arg1 + arg2\n\n\n","stderr_tail":"","stdout_sha256":"84e1c6bd3b974624fe07b1439e574bbc17e542fde2598515c4cc7cf6ba5eb828","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-39.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:30:57.747298Z","duration_s":0.003266,"timed_out":false,"image_before":"7754fbf4-7813-403a-ad9b-513528ea4656","image_after":"d103c567-62c0-41e5-86f8-2205217c6bb1","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-40","seq":40,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -c \"\nimport pybamm\n\n# Base Function\nfunc = pybamm.Function(lambda x: x, pybamm.Symbol('a'))\nprint('Base Function:', type(func).__name__)\nprint('Is SpecificFunction:', isinstance(func, pybamm.SpecificFunction))\n\n# SpecificFunction\narcsinh = pybamm.arcsinh(pybamm.InputParameter('a'))\nprint('Arcsinh:', type(arcsinh).__name__)\nprint('Is SpecificFunction:', isinstance(arcsinh, pybamm.SpecificFunction))\n\"","path":null,"exit_code":0,"stdout_tail":"Base Function: Function\nIs SpecificFunction: False\nArcsinh: Arcsinh\nIs SpecificFunction: True\n","stderr_tail":"","stdout_sha256":"168d04a40884581f3ca90a48920bf07853198945ddc0579bc94b4d6ad9aa2b69","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-40.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:31:02.310823Z","duration_s":2.354221,"timed_out":false,"image_before":"d103c567-62c0-41e5-86f8-2205217c6bb1","image_after":"9434e451-1bb1-4476-8d4c-75ed8b561d57","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-41","seq":41,"branch_id":"agent1","kind":"diff","cmd":"compute patch in executor staging agent1-d6001c30a2644011ae73115d691b55da: /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false add -A && /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false diff --cached --binary --no-ext-diff --no-textconv --no-renames ede0fbb3767174fd7b2b05bb7ef68d4251bf9136","path":null,"exit_code":0,"stdout_tail":"diff --git a/pybamm/expression_tree/functions.py b/pybamm/expression_tree/functions.py\nindex 5f686539b..466e95b08 100644\n--- a/pybamm/expression_tree/functions.py\n+++ b/pybamm/expression_tree/functions.py\n@@ -75,24 +75,9 @@ class Function(pybamm.Symbol):\n         if variable == self:\n             return pybamm.Scalar(1)\n         else:\n-            children = self.orphans\n-            partial_derivatives: list[None | pybamm.Symbol] = [None] * len(children)\n-            for i, child in enumerate(self.children):\n-                # if variable appears in the function, differentiate\n-                # function, and apply chain rule\n-                if variable in child.pre_order():\n-                    partial_derivatives[i] = self._function_diff(\n-                        children, i\n-                    ) * child.diff(variable)\n-\n-            # remove None entries\n-            partial_derivatives = [x for x in partial_derivatives if x is not None]\n-\n-            derivative = sum(partial_derivatives)\n-            if derivative == 0:\n-                return pybamm.Scalar(0)\n-\n-            return derivative\n+            raise NotImplementedError(\n+                \"Derivative of base Function class is not implemented\"\n+            )\n \n     def _function_diff(self, children: Sequence[pybamm.Symbol], idx: float):\n         \"\"\"\ndiff --git a/pybamm/expression_tree/interpolant.py b/pybamm/expression_tree/interpolant.py\nindex 84c982342..97074a817 100644\n--- a/pybamm/expression_tree/interpolant.py\n+++ b/pybamm/expression_tree/interpolant.py\n@@ -197,6 +197,47 @@ class Interpolant(pybamm.Function):\n         self.interpolator = interpolator\n         self.extrapolate = extrapolate\n \n+    def diff(self, variable):\n+        \"\"\"Compute the derivative of the interpolant with respect to a variable.\n+        \n+        For 1D interpolants with a single child, the derivative can be computed\n+        for cubic interpolators (using scipy's derivative method). For linear and\n+        pchip interpolators, as well as multi-child interpolants, differentiation\n+        is not implemented.\n+        \"\"\"\n+        # If the variable is not one of our children, return 0\n+        if variable not in self.orphans:\n+            return pybamm.Scalar(0)\n+        \n+        # Check if we have more than one child - differentiation not implemented\n+        if len(self.children) > 1:\n+            raise NotImplementedError(\n+                \"differentiation not implemented for functions with more than one child\"\n+            )\n+        \n+        # For 1D interpolants with single child, try to compute derivative\n+        if self.dimension == 1:\n+            try:\n+                # Try to use the scipy function's derivative method\n+                # CubicSpline has derivative(), interp1d and PchipInterpolator don't\n+                deriv_func = self.function.derivative()\n+                return pybamm.Function(\n+                    deriv_func,\n+                    *self.children,\n+                    derivative=self.derivative,\n+                    differentiated_function=self.function,\n+                )\n+            except (AttributeError, NotImplementedError):\n+                # If derivative method not available, raise NotImplementedError\n+                raise NotImplementedError(\n+                    \"Differentiation not implemented for this interpolator type\"\n+                )\n+        \n+        # For 2D and 3D interpolants, not implemented\n+        raise NotImplementedError(\n+            \"Differentiation not implemented for %dD interpolation\" % self.dimension\n+        )\n+\n     @classmethod\n     def _from_json(cls, snippet: dict):\n         \"\"\"Create an Interpolant object from JSON data\"\"\"\n@@ -323,6 +364,7 @@ class Interpolant(pybamm.Function):\n             \"y\": self.y.tolist(),\n             \"interpolator\": self.interpolator,\n             \"extrapolate\": self.extrapolate,\n+            \"_num_derivatives\": 0,\n         }\n \n         return json_dict\n","stderr_tail":"","stdout_sha256":"aecf20c0117fe5730b23cabd844cdf4cfd74e644a2574e21080ee608376b78ec","log_path":null,"tree_digest":"65063c901687f8c0752f7e22c0c14042a8be65344cb44052064189c917504fa1","tree_download_s":4.955851707840338,"started_at":"2026-10-03T22:31:40.866224Z","duration_s":0.11547762504778802,"timed_out":false,"image_before":"9434e451-1bb1-4476-8d4c-75ed8b561d57","image_after":"9434e451-1bb1-4476-8d4c-75ed8b561d57","junit":null,"diff":{"files":[{"path":"pybamm/expression_tree/functions.py","added":3,"deleted":18,"category":"source","status":"modified"},{"path":"pybamm/expression_tree/interpolant.py","added":42,"deleted":0,"category":"source","status":"modified"}],"patch_sha256":"aecf20c0117fe5730b23cabd844cdf4cfd74e644a2574e21080ee608376b78ec","patch_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/artifacts/agent1/agent1-41.patch"},"patch_sha256":"aecf20c0117fe5730b23cabd844cdf4cfd74e644a2574e21080ee608376b78ec","dropped_paths":[],"snapshot_sha":"ede0fbb3767174fd7b2b05bb7ef68d4251bf9136"}
{"receipt_id":"agent1-42","seq":42,"branch_id":"agent1","kind":"write","cmd":"/opt/receipts-1e23347ea1e34b039684d3d5831701d0/bin/busybox sh -c 'mkdir -p /PyBaMM/pybamm/expression_tree && cp /opt/receipts-1e23347ea1e34b039684d3d5831701d0/incoming/ffd429c435ed8ad16b7f4b3c6f0c89abd801ae23915b66c2c21cdc5b74763bff /PyBaMM/pybamm/expression_tree/functions.py'","path":"pybamm/expression_tree/functions.py","exit_code":0,"stdout_tail":"","stderr_tail":"","stdout_sha256":"ffd429c435ed8ad16b7f4b3c6f0c89abd801ae23915b66c2c21cdc5b74763bff","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-42.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:32:15.937602Z","duration_s":0.004801,"timed_out":false,"image_before":"9434e451-1bb1-4476-8d4c-75ed8b561d57","image_after":"6feb95f2-8beb-40ea-9e04-8125dbff00af","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-43","seq":43,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_log -xvs 2>&1 | tail -30","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [3 items]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \ntests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh \ntests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_log \n[gw0] PASSED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \n[gw1] PASSED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_arcsinh \n[gw2] PASSED tests/unit/test_expression_tree/test_functions.py::TestSpecificFunctions::test_log \n\n============================== 3 passed in 5.40s ===============================\n","stderr_tail":"","stdout_sha256":"7f92ec609f5f7239d08ae6a84338b59bfe6f7c0f04a11105505d8c2c91891432","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-43.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:32:18.692914Z","duration_s":17.010814,"timed_out":false,"image_before":"6feb95f2-8beb-40ea-9e04-8125dbff00af","image_after":"6ef3eb41-f4a1-4c32-a3b0-ac9ccd4f942c","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-44","seq":44,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py -xvs 2>&1 | tail -30","path":null,"exit_code":0,"stdout_tail":"                        except SympifyError:\n                            pass\n            elif hasattr(a, '__float__'):\n                # float and int can coerce size-one numpy arrays to their lone\n                # element.  See issue https://github.com/numpy/numpy/issues/10404.\n                return sympify(float(a))\n            elif hasattr(a, '__int__'):\n                return sympify(int(a))\n    \n        if strict:\n            raise SympifyError(a)\n    \n        if iterable(a):\n            try:\n                return type(a)([sympify(x, locals=locals, convert_xor=convert_xor,\n                    rational=rational, evaluate=evaluate) for x in a])\n            except TypeError:\n                # Not all iterables are rebuildable with their type.\n                pass\n    \n        if not isinstance(a, str):\n>           raise SympifyError('cannot sympify object of type %r' % type(a))\nE           sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n\n/usr/local/lib/python3.10/site-packages/sympy/core/sympify.py:491: SympifyError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_to_equation - sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!\n========================= 1 failed, 22 passed in 6.03s =========================\n","stderr_tail":"","stdout_sha256":"486a9214aef1bc4aba9a932d8a94a19b6a7eee45dbedff6c48196a9b8c33839f","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-44.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:32:35.993172Z","duration_s":18.614227,"timed_out":false,"image_before":"6ef3eb41-f4a1-4c32-a3b0-ac9ccd4f942c","image_after":"c3cbcdc4-1a41-4f9a-8696-af16f2dd6d30","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-45","seq":45,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && grep -A10 \"def test_to_equation\" tests/unit/test_expression_tree/test_functions.py | head -20","path":null,"exit_code":0,"stdout_tail":"    def test_to_equation(self):\n        a = pybamm.Symbol(\"a\", domain=\"test\")\n\n        # Test print_name\n        func = pybamm.Arcsinh(a)\n        func.print_name = \"test\"\n        self.assertEqual(func.to_equation(), sympy.Symbol(\"test\"))\n\n        # Test Arcsinh\n        self.assertEqual(pybamm.Arcsinh(a).to_equation(), sympy.asinh(a))\n\n","stderr_tail":"","stdout_sha256":"465bd2453f464bd57a22900f654c9c4748300259c49bff20975316bbd55936b8","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-45.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:33:22.511810Z","duration_s":0.004315,"timed_out":false,"image_before":"c3cbcdc4-1a41-4f9a-8696-af16f2dd6d30","image_after":"a4adb819-19ba-4e9f-a325-86fa15a6a7dd","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-46","seq":46,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_interpolant.py -xvs 2>&1 | tail -30","path":null,"exit_code":0,"stdout_tail":"plugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [11 items]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_2_x \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_3_x \n[gw1] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_1_x_2d_y \n[gw1] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_1_x_2d_y \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_name \n[gw1] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_name \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_processing \n[gw1] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_processing \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n[gw2] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_2_x \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_2_x_2d_y \n[gw0] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_errors \n[gw0] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_errors \n[gw3] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_3_x \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_float \n[gw3] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_float \n[gw1] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n[gw2] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_interpolation_2_x_2d_y \n\n============================== 11 passed in 6.35s ==============================\n","stderr_tail":"","stdout_sha256":"8e728020db177d52b368e5918113ab231a0c6256c69f18cc13994187e4eed533","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-46.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:33:35.810522Z","duration_s":18.650518,"timed_out":false,"image_before":"a4adb819-19ba-4e9f-a325-86fa15a6a7dd","image_after":"dc244086-bd0c-4052-991a-c77ca0366d16","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-47","seq":47,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && git stash && python -m pytest tests/unit/test_expression_tree/test_functions.py::TestFunction::test_to_equation -xvs 2>&1 | tail -20","path":null,"exit_code":0,"stdout_tail":"Saved working directory and index state WIP on (no branch): ede0fbb37 receipts snapshot\n            raise SympifyError(a)\n    \n        if iterable(a):\n            try:\n                return type(a)([sympify(x, locals=locals, convert_xor=convert_xor,\n                    rational=rational, evaluate=evaluate) for x in a])\n            except TypeError:\n                # Not all iterables are rebuildable with their type.\n                pass\n    \n        if not isinstance(a, str):\n>           raise SympifyError('cannot sympify object of type %r' % type(a))\nE           sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n\n/usr/local/lib/python3.10/site-packages/sympy/core/sympify.py:491: SympifyError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_to_equation - sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n!!!!!!!!!!!!!!!!!!!!!!!!!! stopping after 1 failures !!!!!!!!!!!!!!!!!!!!!!!!!!!\n!!!!!!!!!!!! xdist.dsession.Interrupted: stopping after 1 failures !!!!!!!!!!!!!\n============================== 1 failed in 5.70s ===============================\n","stderr_tail":"","stdout_sha256":"d9b5c4e63605f155befc170cb736452268f8b1ded1b471323ffaaa6edca3a114","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-47.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:33:54.499363Z","duration_s":17.58669,"timed_out":false,"image_before":"dc244086-bd0c-4052-991a-c77ca0366d16","image_after":"5f026444-e06f-4b2c-b389-03274aab1c06","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-48","seq":48,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && git stash pop","path":null,"exit_code":0,"stdout_tail":"Not currently on any branch.\nChanges not staged for commit:\n  (use \"git add <file>...\" to update what will be committed)\n  (use \"git restore <file>...\" to discard changes in working directory)\n\tmodified:   pybamm/expression_tree/functions.py\n\tmodified:   pybamm/expression_tree/interpolant.py\n\nno changes added to commit (use \"git add\" and/or \"git commit -a\")\nDropped refs/stash@{0} (d2a48d4c93a27bd41dbfd5a224cbf45f98843d44)\n","stderr_tail":"","stdout_sha256":"08ed2aab979635836a611c0b8a38cbfe11290b0c613a54534b7d8b9b8bc234f7","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-48.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:34:11.786981Z","duration_s":0.037252,"timed_out":false,"image_before":"5f026444-e06f-4b2c-b389-03274aab1c06","image_after":"0cb6d5c8-a851-4d4f-afc0-68a3a50cd69a","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-49","seq":49,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff -xvs 2>&1 | tail -20","path":null,"exit_code":0,"stdout_tail":"============================= test session starts ==============================\nplatform linux -- Python 3.10.19, pytest-9.0.2, pluggy-1.6.0 -- /usr/local/bin/python\ncachedir: .pytest_cache\nrootdir: /PyBaMM\nconfigfile: pyproject.toml\nplugins: anyio-4.12.1, nbmake-1.5.5, cov-7.0.0, doctestplus-1.7.1, xdist-3.8.0\ncreated: 4/4 workers\n4 workers [3 items]\n\nscheduling tests via LoadScheduling\n\ntests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \ntests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n[gw0] PASSED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_diff \n[gw2] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_diff \n[gw1] PASSED tests/unit/test_expression_tree/test_interpolant.py::TestInterpolant::test_to_from_json \n\n============================== 3 passed in 5.38s ===============================\n","stderr_tail":"","stdout_sha256":"66a0495266d8705132794e8fe4c236573edd7de7055e36be61d52881002f3e23","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-49.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:34:15.099021Z","duration_s":16.568514,"timed_out":false,"image_before":"0cb6d5c8-a851-4d4f-afc0-68a3a50cd69a","image_after":"2c4965d3-27f4-45af-9be7-bc705c4929c1","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-50","seq":50,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_functions.py tests/unit/test_expression_tree/test_interpolant.py -v --ignore=tests/unit/test_expression_tree/test_functions.py::TestFunction::test_to_equation 2>&1 | tail -30","path":null,"exit_code":0,"stdout_tail":"                                           rational=rational,\n                                           evaluate=evaluate)\n                        except SympifyError:\n                            pass\n            elif hasattr(a, '__float__'):\n                # float and int can coerce size-one numpy arrays to their lone\n                # element.  See issue https://github.com/numpy/numpy/issues/10404.\n                return sympify(float(a))\n            elif hasattr(a, '__int__'):\n                return sympify(int(a))\n    \n        if strict:\n            raise SympifyError(a)\n    \n        if iterable(a):\n            try:\n                return type(a)([sympify(x, locals=locals, convert_xor=convert_xor,\n                    rational=rational, evaluate=evaluate) for x in a])\n            except TypeError:\n                # Not all iterables are rebuildable with their type.\n                pass\n    \n        if not isinstance(a, str):\n>           raise SympifyError('cannot sympify object of type %r' % type(a))\nE           sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n\n/usr/local/lib/python3.10/site-packages/sympy/core/sympify.py:491: SympifyError\n=========================== short test summary info ============================\nFAILED tests/unit/test_expression_tree/test_functions.py::TestFunction::test_to_equation - sympy.core.sympify.SympifyError: SympifyError: \"cannot sympify object of type <class 'pybamm.expression_tree.symbol.Symbol'>\"\n========================= 1 failed, 34 passed in 6.15s =========================\n","stderr_tail":"","stdout_sha256":"ce715f61ce7d25e3bd65c6e571be42b85b1ee231cd52f9185572c402623ce407","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-50.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:34:32.242537Z","duration_s":18.323009,"timed_out":false,"image_before":"2c4965d3-27f4-45af-9be7-bc705c4929c1","image_after":"1c7562e4-5155-4da3-97e3-a435f3223a4c","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-51","seq":51,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && python -m pytest tests/unit/test_expression_tree/test_operations/test_convert_to_casadi.py tests/unit/test_expression_tree/test_operations/test_jac.py tests/unit/test_expression_tree/test_operations/test_jac_2D.py -v 2>&1 | tail -30","path":null,"exit_code":0,"stdout_tail":"[gw1] [ 60%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_minimum_maximum \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_sign \n[gw3] [ 63%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_symbol \n[gw0] [ 65%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_numpy_concatenation \n[gw1] [ 68%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_sign \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_linear \n[gw2] [ 71%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_modulo \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_multislice_raises \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_linear_ydot \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_unary_operator \n[gw1] [ 73%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_multislice_raises \n[gw3] [ 76%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_linear_ydot \n[gw2] [ 78%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_jac_of_unary_operator \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_spatial_operator \n[gw0] [ 81%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_linear \n[gw1] [ 84%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_spatial_operator \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_nonlinear \ntests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_variable_is_statevector \ntests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_functions \ntests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_jac_of_domain_concatenation \n[gw3] [ 86%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_variable_is_statevector \ntests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_linear \n[gw2] [ 89%] PASSED tests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_functions \n[gw0] [ 92%] PASSED tests/unit/test_expression_tree/test_operations/test_jac.py::TestJacobian::test_nonlinear \n[gw3] [ 94%] PASSED tests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_linear \ntests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_nonlinear \n[gw0] [ 97%] PASSED tests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_nonlinear \n[gw1] [100%] PASSED tests/unit/test_expression_tree/test_operations/test_jac_2D.py::TestJacobian::test_jac_of_domain_concatenation \n\n============================== 38 passed in 6.19s ==============================\n","stderr_tail":"","stdout_sha256":"e8cdda72ce31ae098ee3d2a07b91dbdf5393951e40df80ec99ac842471e689cc","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-51.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:34:51.101939Z","duration_s":18.134292000000002,"timed_out":false,"image_before":"1c7562e4-5155-4da3-97e3-a435f3223a4c","image_after":"f9fd19dc-cf4d-4b52-81f0-8527e8ebf08b","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-52","seq":52,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && git diff pybamm/expression_tree/functions.py","path":null,"exit_code":0,"stdout_tail":"diff --git a/pybamm/expression_tree/functions.py b/pybamm/expression_tree/functions.py\nindex 5f686539b..7f15530b5 100644\n--- a/pybamm/expression_tree/functions.py\n+++ b/pybamm/expression_tree/functions.py\n@@ -74,12 +74,11 @@ class Function(pybamm.Symbol):\n         \"\"\"See :meth:`pybamm.Symbol.diff()`.\"\"\"\n         if variable == self:\n             return pybamm.Scalar(1)\n-        else:\n+        elif isinstance(self, pybamm.SpecificFunction):\n+            # SpecificFunction subclasses implement their own diff via _function_diff\n             children = self.orphans\n             partial_derivatives: list[None | pybamm.Symbol] = [None] * len(children)\n             for i, child in enumerate(self.children):\n-                # if variable appears in the function, differentiate\n-                # function, and apply chain rule\n                 if variable in child.pre_order():\n                     partial_derivatives[i] = self._function_diff(\n                         children, i\n@@ -93,6 +92,10 @@ class Function(pybamm.Symbol):\n                 return pybamm.Scalar(0)\n \n             return derivative\n+        else:\n+            raise NotImplementedError(\n+                \"Derivative of base Function class is not implemented\"\n+            )\n \n     def _function_diff(self, children: Sequence[pybamm.Symbol], idx: float):\n         \"\"\"\n","stderr_tail":"","stdout_sha256":"46567b00f4bf03ee61491fc58f2c4db6d4c9a33aebdb254d9efa30046fb48dd9","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-52.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:35:07.942047Z","duration_s":0.004666,"timed_out":false,"image_before":"f9fd19dc-cf4d-4b52-81f0-8527e8ebf08b","image_after":"1175e3c4-e9ff-460c-83a7-31f000acc4b8","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-53","seq":53,"branch_id":"agent1","kind":"command","cmd":"cd /PyBaMM && git diff pybamm/expression_tree/interpolant.py","path":null,"exit_code":0,"stdout_tail":"diff --git a/pybamm/expression_tree/interpolant.py b/pybamm/expression_tree/interpolant.py\nindex 84c982342..97074a817 100644\n--- a/pybamm/expression_tree/interpolant.py\n+++ b/pybamm/expression_tree/interpolant.py\n@@ -197,6 +197,47 @@ class Interpolant(pybamm.Function):\n         self.interpolator = interpolator\n         self.extrapolate = extrapolate\n \n+    def diff(self, variable):\n+        \"\"\"Compute the derivative of the interpolant with respect to a variable.\n+        \n+        For 1D interpolants with a single child, the derivative can be computed\n+        for cubic interpolators (using scipy's derivative method). For linear and\n+        pchip interpolators, as well as multi-child interpolants, differentiation\n+        is not implemented.\n+        \"\"\"\n+        # If the variable is not one of our children, return 0\n+        if variable not in self.orphans:\n+            return pybamm.Scalar(0)\n+        \n+        # Check if we have more than one child - differentiation not implemented\n+        if len(self.children) > 1:\n+            raise NotImplementedError(\n+                \"differentiation not implemented for functions with more than one child\"\n+            )\n+        \n+        # For 1D interpolants with single child, try to compute derivative\n+        if self.dimension == 1:\n+            try:\n+                # Try to use the scipy function's derivative method\n+                # CubicSpline has derivative(), interp1d and PchipInterpolator don't\n+                deriv_func = self.function.derivative()\n+                return pybamm.Function(\n+                    deriv_func,\n+                    *self.children,\n+                    derivative=self.derivative,\n+                    differentiated_function=self.function,\n+                )\n+            except (AttributeError, NotImplementedError):\n+                # If derivative method not available, raise NotImplementedError\n+                raise NotImplementedError(\n+                    \"Differentiation not implemented for this interpolator type\"\n+                )\n+        \n+        # For 2D and 3D interpolants, not implemented\n+        raise NotImplementedError(\n+            \"Differentiation not implemented for %dD interpolation\" % self.dimension\n+        )\n+\n     @classmethod\n     def _from_json(cls, snippet: dict):\n         \"\"\"Create an Interpolant object from JSON data\"\"\"\n@@ -323,6 +364,7 @@ class Interpolant(pybamm.Function):\n             \"y\": self.y.tolist(),\n             \"interpolator\": self.interpolator,\n             \"extrapolate\": self.extrapolate,\n+            \"_num_derivatives\": 0,\n         }\n \n         return json_dict\n","stderr_tail":"","stdout_sha256":"edfde7e1fc9611383ace6f4dd8bf0740e36a55e3c5cd0e83141c806fbc12e230","log_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/logs/agent1/agent1-53.log","tree_digest":null,"tree_download_s":null,"started_at":"2026-10-03T22:35:10.025860Z","duration_s":0.005168,"timed_out":false,"image_before":"1175e3c4-e9ff-460c-83a7-31f000acc4b8","image_after":"68b7ee62-c4e6-491a-bd1d-d71126bcc695","junit":null,"diff":null,"patch_sha256":null,"dropped_paths":[],"snapshot_sha":null}
{"receipt_id":"agent1-54","seq":54,"branch_id":"agent1","kind":"diff","cmd":"compute patch in executor staging agent1-97571c26962846ae8ca5989cfbcab9e1: /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false add -A && /opt/homebrew/Cellar/git/2.53.0/bin/git -c core.hooksPath=/dev/null -c core.attributesFile=/dev/null -c diff.external= -c core.quotePath=false diff --cached --binary --no-ext-diff --no-textconv --no-renames ede0fbb3767174fd7b2b05bb7ef68d4251bf9136","path":null,"exit_code":0,"stdout_tail":"diff --git a/pybamm/expression_tree/functions.py b/pybamm/expression_tree/functions.py\nindex 5f686539b..7f15530b5 100644\n--- a/pybamm/expression_tree/functions.py\n+++ b/pybamm/expression_tree/functions.py\n@@ -74,12 +74,11 @@ class Function(pybamm.Symbol):\n         \"\"\"See :meth:`pybamm.Symbol.diff()`.\"\"\"\n         if variable == self:\n             return pybamm.Scalar(1)\n-        else:\n+        elif isinstance(self, pybamm.SpecificFunction):\n+            # SpecificFunction subclasses implement their own diff via _function_diff\n             children = self.orphans\n             partial_derivatives: list[None | pybamm.Symbol] = [None] * len(children)\n             for i, child in enumerate(self.children):\n-                # if variable appears in the function, differentiate\n-                # function, and apply chain rule\n                 if variable in child.pre_order():\n                     partial_derivatives[i] = self._function_diff(\n                         children, i\n@@ -93,6 +92,10 @@ class Function(pybamm.Symbol):\n                 return pybamm.Scalar(0)\n \n             return derivative\n+        else:\n+            raise NotImplementedError(\n+                \"Derivative of base Function class is not implemented\"\n+            )\n \n     def _function_diff(self, children: Sequence[pybamm.Symbol], idx: float):\n         \"\"\"\ndiff --git a/pybamm/expression_tree/interpolant.py b/pybamm/expression_tree/interpolant.py\nindex 84c982342..97074a817 100644\n--- a/pybamm/expression_tree/interpolant.py\n+++ b/pybamm/expression_tree/interpolant.py\n@@ -197,6 +197,47 @@ class Interpolant(pybamm.Function):\n         self.interpolator = interpolator\n         self.extrapolate = extrapolate\n \n+    def diff(self, variable):\n+        \"\"\"Compute the derivative of the interpolant with respect to a variable.\n+        \n+        For 1D interpolants with a single child, the derivative can be computed\n+        for cubic interpolators (using scipy's derivative method). For linear and\n+        pchip interpolators, as well as multi-child interpolants, differentiation\n+        is not implemented.\n+        \"\"\"\n+        # If the variable is not one of our children, return 0\n+        if variable not in self.orphans:\n+            return pybamm.Scalar(0)\n+        \n+        # Check if we have more than one child - differentiation not implemented\n+        if len(self.children) > 1:\n+            raise NotImplementedError(\n+                \"differentiation not implemented for functions with more than one child\"\n+            )\n+        \n+        # For 1D interpolants with single child, try to compute derivative\n+        if self.dimension == 1:\n+            try:\n+                # Try to use the scipy function's derivative method\n+                # CubicSpline has derivative(), interp1d and PchipInterpolator don't\n+                deriv_func = self.function.derivative()\n+                return pybamm.Function(\n+                    deriv_func,\n+                    *self.children,\n+                    derivative=self.derivative,\n+                    differentiated_function=self.function,\n+                )\n+            except (AttributeError, NotImplementedError):\n+                # If derivative method not available, raise NotImplementedError\n+                raise NotImplementedError(\n+                    \"Differentiation not implemented for this interpolator type\"\n+                )\n+        \n+        # For 2D and 3D interpolants, not implemented\n+        raise NotImplementedError(\n+            \"Differentiation not implemented for %dD interpolation\" % self.dimension\n+        )\n+\n     @classmethod\n     def _from_json(cls, snippet: dict):\n         \"\"\"Create an Interpolant object from JSON data\"\"\"\n@@ -323,6 +364,7 @@ class Interpolant(pybamm.Function):\n             \"y\": self.y.tolist(),\n             \"interpolator\": self.interpolator,\n             \"extrapolate\": self.extrapolate,\n+            \"_num_derivatives\": 0,\n         }\n \n         return json_dict\n","stderr_tail":"","stdout_sha256":"4676ca2c9950ac76d2ae2e8e15b173ca9bcc6e659d05d307bfa06eb00f8bd3ba","log_path":null,"tree_digest":"42be5972ec83c49b878471f3d85cc94bebf5dd5641bd84fd77c62112a340d637","tree_download_s":5.051201292080805,"started_at":"2026-10-03T22:35:21.412645Z","duration_s":0.11342204199172556,"timed_out":false,"image_before":"68b7ee62-c4e6-491a-bd1d-d71126bcc695","image_after":"68b7ee62-c4e6-491a-bd1d-d71126bcc695","junit":null,"diff":{"files":[{"path":"pybamm/expression_tree/functions.py","added":6,"deleted":3,"category":"source","status":"modified"},{"path":"pybamm/expression_tree/interpolant.py","added":42,"deleted":0,"category":"source","status":"modified"}],"patch_sha256":"4676ca2c9950ac76d2ae2e8e15b173ca9bcc6e659d05d307bfa06eb00f8bd3ba","patch_path":"~/dev/nebius-hackathon/pilot/v2-arm-lightning/pybamm-team__pybamm-4196/runs/pilot-pybamm-team__pybamm-4196-e8b53a4452/artifacts/agent1/agent1-54.patch"},"patch_sha256":"4676ca2c9950ac76d2ae2e8e15b173ca9bcc6e659d05d307bfa06eb00f8bd3ba","dropped_paths":[],"snapshot_sha":"ede0fbb3767174fd7b2b05bb7ef68d4251bf9136"}