python3 -m fmpy simulate  --output-file MEV_MEV.Simulations.OnOffControl.Scenario7_res.csv --start-time 0 --stop-time 30 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.005 MEV_MEV_Simulations_OnOffControl_Scenario7.fmu
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[12].valve_out.air.rho) was -14.7996 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[12].valve_out.air.rho) was -14.693 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[12].valve_out.air.rho) was -13.7339 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3353 failed at time=0.827586209005723.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[12].valve_out.air.rho) was -1.99899 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[12].valve_out.air.rho) was -1.97776 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[12].valve_out.air.rho) was -1.7867 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3353 failed at time=0.827586207318396.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[13].valve_out.air.rho) was -12.9446 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[13].valve_out.air.rho) was -12.8504 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[13].valve_out.air.rho) was -12.0026 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3312 failed at time=0.85714285947866.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[13].valve_out.air.rho) was -1.62881 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[13].valve_out.air.rho) was -1.61005 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[13].valve_out.air.rho) was -1.4412 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3312 failed at time=0.857142857610022.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[17].valve_out.air.rho) was -74.4604 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[17].valve_out.air.rho) was -73.9561 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[17].valve_out.air.rho) was -69.4174 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3148 failed at time=1.04210526574959.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[17].valve_out.air.rho) was -13.932 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[17].valve_out.air.rho) was -13.8312 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[17].valve_out.air.rho) was -12.9241 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3148 failed at time=1.04210526367624.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[17].valve_out.air.rho) was -1.82626 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[17].valve_out.air.rho) was -1.80619 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[17].valve_out.air.rho) was -1.62549 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3148 failed at time=1.04210526326157.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[20].valve_out.air.rho) was -5.1706 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[20].valve_out.air.rho) was -5.1706 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[20].valve_out.air.rho) was -5.1706 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3029 failed at time=1.4142857157838.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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[20].valve_out.air.rho) was -0.0739666 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[20].valve_out.air.rho) was -0.0739666 should be >= 0
LOG_ASSERT        | debug   | Model error: Argument of sqrt(patients[20].valve_out.air.rho) was -0.0739666 should be >= 0
LOG_ASSERT        | debug   | Solving non-linear system 3029 failed at time=1.41428571458533.
|                 | |       | For more information please use -lv LOG_NLS.
Exception ignored on calling ctypes callback function: <bound method CVodeSolver.f of <fmpy.sundials.CVodeSolver object at 0x7f76bb13c6d0>>
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 <module>
    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 -1) in module CVODE, function CVode: At t = 1.98499, mxstep steps taken before reaching tout.