Environment - simulationEnvironment: startTime=0 stopTime=7200 tolerance=1e-06 numberOfIntervals=2500 stepSize=2.88 Regular simulation: ./AixLib_latest_AixLib.Systems.ModularAHU.Validation.AHU2_Preheater -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 = 0.917882971653207 LOG_STDOUT | info | model terminate | Integrator failed. | Simulation terminated at time 0.917883 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.289352s reading init.xml | | | | | | 0.016995s reading info.xml | | | | | | 0.000292379s [ 3.1%] pre-initialization | | | | | | 0.00165781s [ 17.4%] initialization | | | | | | 0.0074978s [ 78.6%] steps | | | | | | 0.00476046s [ 49.9%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 1.413e-06s [ 0.0%] event-handling | | | | | | 1.1151e-05s [ 0.1%] overhead | | | | | | -0.00467643s [-49.0%] simulation | | | | | | 0.00954459s [100.0%] total | | | | | events | | | | | | 0 state events | | | | | | 0 time events | | | | | solver: ida | | | | | | 197 steps taken | | | | | | 355 calls of functionODE | | | | | | 32 evaluations of jacobian | | | | | | 2 error test failures | | | | | | 10 convergence test failures | | | | | | 0.0026255s time of jacobian evaluation