Environment - simulationEnvironment: startTime=0 stopTime=4320 tolerance=1e-06 numberOfIntervals=2500 stepSize=1.728 Regular simulation: ./AixLib_latest_AixLib.Systems.ModularAHU.Validation.AHU2_Heater -abortSlowSimulation -alarm=480 -lv LOG_STATS LOG_STDOUT | warning | Internal Numerical Jacobians without coloring are currently not supported by IDA with KLU. Colored numerical Jacobian will be used. LOG_SUCCESS | info | The initialization finished successfully with 3 homotopy steps. LOG_STDOUT | info | ##IDA## -4 error occurred at time = 0.873854410791757 LOG_STDOUT | info | model terminate | Integrator failed. | Simulation terminated at time 0.873854 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.154924s reading init.xml | | | | | | 0.0113296s reading info.xml | | | | | | 0.000323797s [ 3.5%] pre-initialization | | | | | | 0.00156594s [ 16.8%] initialization | | | | | | 0.00104441s [ 11.2%] steps | | | | | | 0.00465639s [ 49.8%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 2.485e-06s [ 0.0%] event-handling | | | | | | 2.133e-05s [ 0.2%] overhead | | | | | | 0.00173138s [ 18.5%] simulation | | | | | | 0.00934573s [100.0%] total | | | | | events | | | | | | 0 state events | | | | | | 0 time events | | | | | solver: ida | | | | | | 213 steps taken | | | | | | 378 calls of functionODE | | | | | | 29 evaluations of jacobian | | | | | | 4 error test failures | | | | | | 10 convergence test failures | | | | | | 0.00231804s time of jacobian evaluation