python3 -m fmpy simulate --output-file MEV_MEV.Simulations.OnOffControl.Scenario3_res.csv --start-time 0 --stop-time 25 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.005 MEV_MEV_Simulations_OnOffControl_Scenario3.fmu LOG_ASSERT | debug | Model error: Argument of sqrt(patients[4].valve_out.air.rho) was -9.26778 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[4].valve_out.air.rho) was -9.1981 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[4].valve_out.air.rho) was -8.57091 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1821 failed at time=0.860869568034003. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[4].valve_out.air.rho) was -0.88941 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[4].valve_out.air.rho) was -0.875578 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[4].valve_out.air.rho) was -0.751093 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1821 failed at time=0.860869565780718. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[10].valve_in.air.rho) was -686.955 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[10].valve_in.air.rho) was -686.955 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[10].valve_in.air.rho) was -686.955 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1579 failed at time=1.4142857157838. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[10].valve_in.air.rho) was -0.985219 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[10].valve_in.air.rho) was -0.985219 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[10].valve_in.air.rho) was -0.985219 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1579 failed at time=1.41428571458533. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[1].valve_out.air.rho) was -0.345847 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[1].valve_out.air.rho) was -0.335639 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[1].valve_out.air.rho) was -0.243768 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1944 failed at time=2.00000000471807. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -146.621 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -145.636 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -136.768 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1862 failed at time=2.14285714605186. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -28.3545 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -28.1576 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -26.3852 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1862 failed at time=2.1428571434961. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -4.70115 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -4.66191 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -4.30872 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1862 failed at time=2.14285714298495. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -2.3865 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -1.55297 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -1.00702 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.649415 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.415186 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.261765 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.161275 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0954542 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0523414 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0241025 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00560601 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -2.15627 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -1.41011 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.921375 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.601255 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.391576 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.254237 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.16428 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.105357 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0667634 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0414844 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0249266 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0140813 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00697756 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00232463 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -2.10551 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -1.37886 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.902902 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.591151 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.386955 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.253206 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.1656 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.108219 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0706338 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0460157 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0298909 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0193291 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0124111 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00787982 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00491183 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0029678 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00169446 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.000860427 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.000314132 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -2.09971 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -1.3753 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.900804 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.590011 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.386442 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.253105 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.165769 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.108563 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0710939 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0465514 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0304761 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0199468 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0130501 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00853272 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00557386 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0036358 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00236638 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.0015349 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.000990289 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.000633566 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.000399913 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.00024687 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -0.000146626 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[3].valve_out.air.rho) was -2.3865 should be >= 0 LOG_STDOUT | warning | While solving non-linear system an assertion failed at time 2.14286. | | | | | The non-linear solver tries to solve the problem that could take some time. | | | | | It could help to provide better start-values for the iteration variables. | | | | | For more information simulate with -lv LOG_NLS_V LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -836.376 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -830.792 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -780.539 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1739 failed at time=2.85714286140249. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -166.307 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -165.19 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -155.141 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1739 failed at time=2.85714285799481. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -32.2932 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -32.0701 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -30.0613 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1739 failed at time=2.85714285731328. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -5.49046 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -5.44595 should be >= 0 LOG_ASSERT | debug | Model error: Argument of sqrt(patients[6].valve_out.air.rho) was -5.0454 should be >= 0 LOG_ASSERT | debug | Solving non-linear system 1739 failed at time=2.85714285717697. | | | | For more information please use -lv LOG_NLS. Exception ignored on calling ctypes callback function: > Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 141, in f self.get_dx(NV_DATA_S(ydot), self.nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 505, in getDerivatives return self.fmi2GetDerivatives(self.component, dx, nx) File "/usr/local/lib/python3.10/dist-packages/fmpy/fmi2.py", line 215, in w raise FMICallException(function=fname, status=res) fmpy.fmi1.FMICallException: fmi2GetDerivatives failed with status 3 (error). Traceback (most recent call last): File "/usr/lib/python3.10/runpy.py", line 196, in _run_module_as_main return _run_code(code, main_globals, None, File "/usr/lib/python3.10/runpy.py", line 86, in _run_code exec(code, run_globals) File "/usr/local/lib/python3.10/dist-packages/fmpy/__main__.py", line 4, in main() File "/usr/local/lib/python3.10/dist-packages/fmpy/command_line.py", line 167, in main result = simulate_fmu(args.fmu_filename, File "/usr/local/lib/python3.10/dist-packages/fmpy/simulation.py", line 759, in simulate_fmu result = simulateME(model_description, fmu, start_time, stop_time, solver, step_size, relative_tolerance, start_values, apply_default_start_values, input, output, output_interval, record_events, timeout, step_finished, validate, set_stop_time) File "/usr/local/lib/python3.10/dist-packages/fmpy/simulation.py", line 1059, in simulateME state_event, roots_found, time = solver.step(time, t_next) File "/usr/local/lib/python3.10/dist-packages/fmpy/sundials/__init__.py", line 178, in step raise RuntimeError("CVode error (code %s) in module %s, function %s: %s" % self.error_info) RuntimeError: CVode error (code -10) in module CVODE, function CVode: At t = 2.85714 repeated recoverable right-hand side function errors.