startTime=6.5e+06 stopTime=7e+06 tolerance=1e-06 numberOfIntervals=2500 stepSize=200 Regular simulation: ./Buildings_maint.8.0.x_Buildings.Experimental.DHC.EnergyTransferStations.Combined.Generation5.Examples.ChillerOnly -abortSlowSimulation -alarm=480 -lv LOG_STATS stdout | info | ... loading "tab1" from "/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/Resources/Data/Experimental/DHC/Loads/Examples/MediumOffice-90.1-2010-5A.mos" LOG_SUCCESS | info | The initialization finished successfully with 3 homotopy steps. stdout | info | ##IDA## -4 error occurred at time = 6585384.92540745 stdout | info | model terminate | Integrator failed. | Simulation terminated at time 6.58538e+06 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.111229s reading init.xml | | | | | | 0.0100948s reading info.xml | | | | | | 0.000649057s [ 0.0%] pre-initialization | | | | | | 0.00408329s [ 0.1%] initialization | | | | | | 0.00294177s [ 0.1%] steps | | | | | | 1.20157s [ 44.1%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 0.922237s [ 33.9%] event-handling | | | | | | 0.0283431s [ 1.0%] overhead | | | | | | 0.564093s [ 20.7%] simulation | | | | | | 2.72392s [100.0%] total | | | | | events | | | | | | 2 state events | | | | | | 1423 time events | | | | | solver: ida | | | | | | 17499 steps taken | | | | | | 18491 calls of functionODE | | | | | | 13921 evaluations of jacobian | | | | | | 81 error test failures | | | | | | 28 convergence test failures | | | | | | 1.67936s time of jacobian evaluation