OMSimulator  --tempDir=temp_IDEAS_IDEAS_Airflow_Multizone_Examples_ReverseBuoyancy3Zones_fmu --startTime=0 --stopTime=3600 --timeout=50 --tolerance=1e-06 IDEAS_IDEAS_Airflow_Multizone_Examples_ReverseBuoyancy3Zones.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 = 822270 NumRhsEvals  = 822271 NumLinSolvSetups = 41115
         NumNonlinSolvIters = 822270 NumNonlinSolvConvFails = 0 NumErrTestFails = 0

[CVODE ERROR]  CVode
  cvode_mem = NULL illegal.

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