Environment - simulationEnvironment: startTime=0 stopTime=172800 tolerance=1e-07 numberOfIntervals=2500 stepSize=69.12 Regular simulation: ./Buildings_8_Buildings.Examples.DualFanDualDuct.ClosedLoop -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_STDOUT | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.000000. That might raise performance issues, for more information use -lv LOG_LS. LOG_STDOUT | warning | The default linear solver fails, the fallback solver with total pivoting is started at time 0.000000. That might raise performance issues, for more information use -lv LOG_LS. LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/HeatExchangers/BaseClasses/PartialEffectivenessNTU.mo:105:5-110:36:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((heaCoi.Q_flow_nominal / (heaCoi.T_a1_nominal - heaCoi.T_a2_nominal) >= 0.0)) --> "In ClosedLoop.heaCoi: Q_flow_nominal is defined with the wrong sign. By convention, a positive value describes a heat flow from Medium1 to Medium2. The parameter T_a1_nominal should then be larger than T_a2_nominal.Future version of this library might enforce this convention and throw an error." LOG_ASSERT | warning | [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/Fluid/Movers/BaseClasses/PartialFlowMachine.mo:352:3-361:39:writable] | | | | The following assertion has been violated during initialization at time 0.000000 | | | | ((pumPreHea.nominalValuesDefineDefaultPressureCurve)) --> "*** Warning: You are using a flow or pressure controlled mover with the | | | | default pressure curve. | | | | This leads to approximate calculations of the electrical power | | | | consumption. Add the correct pressure curve in the record per | | | | to obtain an accurate computation. | | | | Setting nominalValuesDefineDefaultPressureCurve=true will suppress this warning." LOG_ASSERT | debug | Buildings_8_Buildings.Examples.DualFanDualDuct.ClosedLoop_functions.c:32520: Invalid root: (nan)^(1.3333) LOG_ASSERT | debug | Buildings_8_Buildings.Examples.DualFanDualDuct.ClosedLoop_functions.c:32520: Invalid root: (nan)^(1.3333) LOG_ASSERT | debug | ##IDA## In function IDAGetNumNonlinSolvIters: The user-provided residual function failed in an unrecoverable manner. LOG_ASSERT | info | simulation terminated by an assertion at initialization