Environment - simulationEnvironment: startTime=0 stopTime=604800 tolerance=1e-06 numberOfIntervals=2500 stepSize=241.92 Regular simulation: ./Buildings_latest_Buildings.Air.Systems.SingleZone.VAV.Examples.OptimalStart.Guideline36Winter -abortSlowSimulation -alarm=480 -s gbode -emit_protected -lv LOG_STATS LOG_STDOUT | warning | Numerical Jacobians without coloring are currently not supported by GBODE. Colored numerical Jacobian will be used. LOG_ASSERT | debug | division by zero at time 0, (a=-402.6975543517297) / (b=0), where divisor b expression is: max(-zonAHUG36Con.hvac.out.ports[3].m_flow, 1e-7) - zonAHUG36Con.sinZonFlo.ports[2].m_flow LOG_ASSERT | error | Failed to solve the initialization problem with global homotopy with equidistant step size. LOG_ASSERT | debug | Unable to solve initialization problem. LOG_ASSERT | info | simulation terminated by an assertion at initialization