Environment - simulationEnvironment: startTime=0 stopTime=172800 tolerance=1e-06 numberOfIntervals=2500 stepSize=69.12 Regular simulation: ./AixLib_AixLib.Fluid.HeatExchangers.Examples.WaterHeater_T -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 without homotopy method. LOG_STDOUT | info | ##IDA## -4 error occurred at time = 22247.1792964262 LOG_STDOUT | info | model terminate | Integrator failed. | Simulation terminated at time 22247.2 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.00882311s reading init.xml | | | | | | 0.000763792s reading info.xml | | | | | | 0.000179617s [ 3.9%] pre-initialization | | | | | | 0.000210444s [ 4.6%] initialization | | | | | | 7.7946e-05s [ 1.7%] steps | | | | | | 0.00113969s [ 24.7%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 5.81e-07s [ 0.0%] event-handling | | | | | | 0.00118409s [ 25.7%] overhead | | | | | | 0.00181314s [ 39.4%] simulation | | | | | | 0.0046055s [100.0%] total | | | | | events | | | | | | 0 state events | | | | | | 0 time events | | | | | solver: ida | | | | | | 284 steps taken | | | | | | 463 calls of functionODE | | | | | | 100 evaluations of jacobian | | | | | | 27 error test failures | | | | | | 13 convergence test failures | | | | | | 0.000365827s time of jacobian evaluation