Environment - simulationEnvironment: startTime=1.5984e+07 stopTime=1.67616e+07 tolerance=1e-06 numberOfIntervals=2500 stepSize=311.04 Regular simulation: ./Buildings_13_Buildings.Air.Systems.SingleZone.VAV.Examples.OptimalStart.Guideline36Summer -abortSlowSimulation -alarm=240 -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 = 15984000.0112132 LOG_STDOUT | info | model terminate | Integrator failed. | Simulation terminated at time 1.5984e+07 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0s reading init.xml | | | | | | 0s reading info.xml | | | | | | 0.00020181s [ 0.2%] pre-initialization | | | | | | 0.0471008s [ 55.2%] initialization | | | | | | 0s [ 0.0%] steps | | | | | | 0.00306266s [ 3.6%] solver (excl. callbacks) | | | | | | 1.3745e-05s [ 0.0%] creating output-file | | | | | | 0.0110261s [ 12.9%] event-handling | | | | | | 0s [ 0.0%] overhead | | | | | | 0.0239985s [ 28.1%] simulation | | | | | | 0.0854036s [100.0%] total | | | | | events | | | | | | 1 state events | | | | | | 1 time events | | | | | solver: ida | | | | | | 24 steps taken | | | | | | 63 calls of functionODE | | | | | | 39 evaluations of jacobian | | | | | | 0 error test failures | | | | | | 10 convergence test failures | | | | | | 0.0324985s time of jacobian evaluation