OMSimulator  --tempDir=temp_AixLib_AixLib_Fluid_Interfaces_Examples_HeaterCooler_u_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 AixLib_AixLib_Fluid_Interfaces_Examples_HeaterCooler_u.fmu
info:    maximum step size for 'model.root': 0.001000
info:    Result file: model_res.mat (bufferSize=10)
error:   [operator()] Timeout occurred during simulation
info:    0 warnings
info:    1 errors
info:    Final Statistics for 'model.root':
         NumSteps = 252911 NumRhsEvals  = 252913 NumLinSolvSetups = 12647
         NumNonlinSolvIters = 252912 NumNonlinSolvConvFails = 0 NumErrTestFails = 0

[CVODE ERROR]  CVode
  cvode_mem = NULL illegal.

error:   [doStep] SUNDIALS_ERROR: CVode() failed with flag = -21