Environment - simulationEnvironment: startTime=0 stopTime=604800 tolerance=1e-06 numberOfIntervals=2513 stepSize=240.669 Regular simulation: ./Buildings_latest_Buildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ6 -abortSlowSimulation -alarm=800 -s ida -emit_protected -lv LOG_STATS EnergyPlus Starting EnergyPlus, Version 24.2.0-9f1b36b00b, YMD=2026.02.21 07:15 Adjusting Air System Sizing Adjusting Standard 62.1 Ventilation Sizing Initializing Simulation Reporting Surfaces Beginning Primary Simulation Initializing New Environment Parameters Warming up {1} Warming up {2} Warming up {3} Warming up {4} Warming up {5} Warming up {6} Warming up {7} Warming up {8} Warming up {9} Warming up {10} Warming up {11} Starting Simulation at 01/01/2006 for SPAWN-RUNPERIOD LOG_SUCCESS | info | The initialization finished successfully with 3 homotopy steps. LOG_ASSERT | debug | Buildings_latest_Buildings.DHC.Loads.BaseClasses.Examples.CouplingSpawnZ6_functions.c:5778: Invalid root: (-0.254664)^(-1.5) LOG_STDOUT | info | ##IDA## -8 error occurred at time = 385978.175547386 LOG_STDOUT | info | model terminate | Integrator failed. | Simulation terminated at time 385978 LOG_STATS | info | ### STATISTICS ### | | | | | timer | | | | | | 0.14859s reading init.xml | | | | | | 0.0127458s reading info.xml | | | | | | 0.00527166s [ 0.0%] pre-initialization | | | | | | 7.73974s [ 43.8%] initialization | | | | | | 0.0158644s [ 0.1%] steps | | | | | | 0.503805s [ 2.8%] solver (excl. callbacks) | | | | | | 0.0273878s [ 0.2%] creating output-file | | | | | | 0.753736s [ 4.3%] event-handling | | | | | | 0.0340863s [ 0.2%] overhead | | | | | | 8.60317s [ 48.7%] simulation | | | | | | 17.6831s [100.0%] total | | | | | events | | | | | | 643 state events | | | | | | 0 time events | | | | | solver: ida | | | | | | 38629 steps taken | | | | | | 49507 calls of functionODE | | | | | | 6097 evaluations of jacobian | | | | | | 639 error test failures | | | | | | 7 convergence test failures | | | | | | 5.9457s time of jacobian evaluation Writing final SQL reports EnergyPlus Run Time=00hr 00min 10.40sec EnergyPlus Completed Successfully.