Environment - simulationEnvironment: startTime=0 stopTime=14400 tolerance=1e-06 numberOfIntervals=2500 stepSize=5.76 Regular simulation: ./Buildings_8_Buildings.Fluid.Storage.Validation.HeatExchangerDynamics -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 = 6299.86702769257 LOG_STDOUT | info | model terminate | Integrator failed. | Simulation terminated at time 6299.87 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.0582583s reading init.xml | | | | | | 0.00555816s reading info.xml | | | | | | 0.000350468s [ 0.3%] pre-initialization | | | | | | 0.00117005s [ 0.9%] initialization | | | | | | 0.0177698s [ 13.9%] steps | | | | | | 0.0559245s [ 43.7%] solver (excl. callbacks) | | | | | | 0s [ 0.0%] creating output-file | | | | | | 0.00241319s [ 1.9%] event-handling | | | | | | 0.00675756s [ 5.3%] overhead | | | | | | 0.0436061s [ 34.1%] simulation | | | | | | 0.127992s [100.0%] total | | | | | events | | | | | | 4 state events | | | | | | 0 time events | | | | | solver: ida | | | | | | 1980 steps taken | | | | | | 3713 calls of functionODE | | | | | | 369 evaluations of jacobian | | | | | | 175 error test failures | | | | | | 17 convergence test failures | | | | | | 0.0342499s time of jacobian evaluation