Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.5.0-master/package.mo", uses=false) Using package BuildSysPro with version 3.5.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.5.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_Sources_Examples_TraceSubstancesFlowSource",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_Sources_Examples_TraceSubstancesFlowSource",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001065/0.001064, allocations: 100 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001324/0.001324, allocations: 177.3 kB / 15.94 MB, free: 228 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.455/1.455, allocations: 223.2 MB / 239.9 MB, free: 5.363 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.5.0-master/package.mo): time 1.03/1.03, allocations: 143.3 MB / 434.2 MB, free: 13.79 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004154/0.0004156, allocations: 12 kB / 0.5159 GB, free: 11.27 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.22/0.2205, allocations: 83.4 MB / 0.5973 GB, free: 7.805 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource): time 0.7049/0.9254, allocations: 247.5 MB / 0.839 GB, free: 4.395 MB / 0.6544 GB Notification: Performance of NFInst.instExpressions: time 0.5357/1.461, allocations: 23.95 MB / 0.8624 GB, free: 9.035 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005335/1.467, allocations: 99.84 kB / 0.8625 GB, free: 9.035 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.006702/1.473, allocations: 1.723 MB / 0.8642 GB, free: 9.031 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.02137/1.495, allocations: 5.867 MB / 0.8699 GB, free: 8.965 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.01055/1.505, allocations: 2.719 MB / 0.8726 GB, free: 8.922 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.01317/1.518, allocations: 5.148 MB / 0.8776 GB, free: 8.906 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.008321/1.527, allocations: 2.573 MB / 0.8801 GB, free: 24.55 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01027/1.537, allocations: 2.62 MB / 0.8827 GB, free: 24.54 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00669/1.544, allocations: 1.905 MB / 0.8845 GB, free: 24.54 MB / 0.6856 GB Notification: Performance of NFPackage.collectConstants: time 0.002061/1.546, allocations: 152.2 kB / 0.8847 GB, free: 24.54 MB / 0.6856 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01257/1.559, allocations: 2.09 MB / 0.8867 GB, free: 24.54 MB / 0.6856 GB Notification: Performance of NFScalarize.scalarize: time 0.005823/1.564, allocations: 1.317 MB / 0.888 GB, free: 24.53 MB / 0.6856 GB Notification: Performance of NFVerifyModel.verify: time 0.004772/1.569, allocations: 0.7577 MB / 0.8888 GB, free: 24.5 MB / 0.6856 GB Notification: Performance of NFConvertDAE.convert: time 0.01223/1.582, allocations: 4.752 MB / 0.8934 GB, free: 24.16 MB / 0.6856 GB Notification: Performance of FrontEnd - DAE generated: time 5e-06/1.582, allocations: 0 / 0.8934 GB, free: 24.16 MB / 0.6856 GB Notification: Performance of FrontEnd: time 4.368e-06/1.582, allocations: 2.375 kB / 0.8934 GB, free: 24.16 MB / 0.6856 GB Notification: Performance of Transformations before backend: time 0.0003705/1.582, allocations: 0 / 0.8934 GB, free: 24.16 MB / 0.6856 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 693 * Number of variables: 693 Notification: Performance of Generate backend data structure: time 0.01655/1.599, allocations: 3.431 MB / 0.8967 GB, free: 22.46 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 6.266e-05/1.599, allocations: 9.594 kB / 0.8968 GB, free: 22.46 MB / 0.6856 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002278/1.601, allocations: 391.2 kB / 0.8971 GB, free: 22.41 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008052/1.609, allocations: 0.9449 MB / 0.8981 GB, free: 22.2 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009619/1.619, allocations: 2.23 MB / 0.9002 GB, free: 21.65 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006731/1.619, allocations: 283 kB / 0.9005 GB, free: 21.57 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002402/1.622, allocations: 289.5 kB / 0.9008 GB, free: 21.57 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01451/1.636, allocations: 3.331 MB / 0.904 GB, free: 21.31 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002025/1.637, allocations: 8.125 kB / 0.904 GB, free: 21.31 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001226/1.638, allocations: 111.3 kB / 0.9041 GB, free: 21.31 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002765/1.638, allocations: 110.5 kB / 0.9042 GB, free: 21.3 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008258/1.646, allocations: 2.801 MB / 0.907 GB, free: 21.27 MB / 0.6856 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02513/1.672, allocations: 13.29 MB / 0.92 GB, free: 12.49 MB / 0.6856 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003293/1.675, allocations: 1.717 MB / 0.9216 GB, free: 12.25 MB / 0.6856 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000245/1.675, allocations: 64.83 kB / 0.9217 GB, free: 12.24 MB / 0.6856 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.034e-05/1.675, allocations: 61.94 kB / 0.9218 GB, free: 12.2 MB / 0.6856 GB Notification: Performance of pre-optimization done (n=186): time 5.581e-06/1.675, allocations: 1.859 kB / 0.9218 GB, free: 12.2 MB / 0.6856 GB Notification: Performance of matching and sorting (n=186): time 0.006122/1.681, allocations: 2.794 MB / 0.9245 GB, free: 11.67 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.356e-05/1.681, allocations: 76.53 kB / 0.9246 GB, free: 11.61 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003455/1.685, allocations: 1.975 MB / 0.9265 GB, free: 11.04 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 0.0003931/1.685, allocations: 69.08 kB / 0.9265 GB, free: 11.01 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009961/1.686, allocations: 1.403 MB / 0.9279 GB, free: 10.34 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 0.000729/1.687, allocations: 0.6561 MB / 0.9286 GB, free: 9.863 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.13e-05/1.687, allocations: 37.41 kB / 0.9286 GB, free: 9.863 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0002039/1.687, allocations: 395.2 kB / 0.929 GB, free: 9.527 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001223/1.689, allocations: 0.8018 MB / 0.9298 GB, free: 9.402 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001548/1.69, allocations: 1.434 MB / 0.9312 GB, free: 8.555 MB / 0.6856 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001753/1.692, allocations: 1.061 MB / 0.9322 GB, free: 8.43 MB / 0.6856 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.59e-05/1.692, allocations: 6.625 kB / 0.9322 GB, free: 8.43 MB / 0.6856 GB Notification: Performance of matching and sorting (n=261) (initialization): time 0.004839/1.697, allocations: 2.5 MB / 0.9346 GB, free: 7.977 MB / 0.6856 GB Notification: Performance of prepare postOptimizeDAE: time 0.002419/1.699, allocations: 5.237 MB / 0.9398 GB, free: 2.383 MB / 0.6856 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.612e-05/1.699, allocations: 13.86 kB / 0.9398 GB, free: 2.383 MB / 0.6856 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.871e-05/1.699, allocations: 23.88 kB / 0.9398 GB, free: 2.383 MB / 0.6856 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002794/1.702, allocations: 0.5694 MB / 0.9403 GB, free: 2.293 MB / 0.6856 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002927/1.705, allocations: 4.158 MB / 0.9444 GB, free: 14.16 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005016/1.71, allocations: 402.7 kB / 0.9448 GB, free: 13.96 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005677/1.711, allocations: 96.44 kB / 0.9449 GB, free: 13.95 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 2.386e-05/1.711, allocations: 5.219 kB / 0.9449 GB, free: 13.95 MB / 0.7012 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003606/1.714, allocations: 2.239 MB / 0.9471 GB, free: 13.67 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.97e-05/1.714, allocations: 11.56 kB / 0.9471 GB, free: 13.67 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.31e-05/1.714, allocations: 24 kB / 0.9471 GB, free: 13.67 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001758/1.716, allocations: 489 kB / 0.9476 GB, free: 13.6 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.374e-05/1.716, allocations: 28.66 kB / 0.9476 GB, free: 13.6 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003937/1.72, allocations: 387.3 kB / 0.948 GB, free: 13.42 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002235/1.72, allocations: 91.14 kB / 0.9481 GB, free: 13.42 MB / 0.7012 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 56 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (261): * Single equations (assignments): 254 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.002325/1.723, allocations: 0.8689 MB / 0.9489 GB, free: 13.13 MB / 0.7012 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001141/1.724, allocations: 270.8 kB / 0.9492 GB, free: 12.99 MB / 0.7012 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004514/1.728, allocations: 2.152 MB / 0.9513 GB, free: 12.57 MB / 0.7012 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.618e-05/1.729, allocations: 22.7 kB / 0.9513 GB, free: 12.57 MB / 0.7012 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.238e-05/1.729, allocations: 0 / 0.9513 GB, free: 12.57 MB / 0.7012 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002874/1.731, allocations: 1.921 MB / 0.9532 GB, free: 12.07 MB / 0.7012 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01271/1.744, allocations: 5.236 MB / 0.9583 GB, free: 10.51 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.209e-05/1.744, allocations: 3.281 kB / 0.9583 GB, free: 10.51 MB / 0.7012 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002449/1.747, allocations: 0.4979 MB / 0.9588 GB, free: 10.43 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.582e-05/1.747, allocations: 15.34 kB / 0.9588 GB, free: 10.43 MB / 0.7012 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002169/1.747, allocations: 54.84 kB / 0.9588 GB, free: 10.42 MB / 0.7012 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002296/1.749, allocations: 4.125 MB / 0.9629 GB, free: 6.285 MB / 0.7012 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.151e-06/1.749, allocations: 3.312 kB / 0.9629 GB, free: 6.285 MB / 0.7012 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.005676/1.755, allocations: 3.517 MB / 0.9663 GB, free: 5.129 MB / 0.7012 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002463/1.757, allocations: 0.5785 MB / 0.9669 GB, free: 4.641 MB / 0.7012 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001031/1.759, allocations: 43.94 kB / 0.9669 GB, free: 4.625 MB / 0.7012 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003411/1.762, allocations: 261 kB / 0.9672 GB, free: 4.398 MB / 0.7012 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002846/1.762, allocations: 118.1 kB / 0.9673 GB, free: 4.297 MB / 0.7012 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002354/1.763, allocations: 67.16 kB / 0.9673 GB, free: 4.246 MB / 0.7012 GB Notification: Performance of sorting global known variables: time 0.003126/1.766, allocations: 1.321 MB / 0.9686 GB, free: 3.258 MB / 0.7012 GB Notification: Performance of sort global known variables: time 2.81e-07/1.766, allocations: 0 / 0.9686 GB, free: 3.258 MB / 0.7012 GB Notification: Performance of remove unused functions: time 0.007398/1.773, allocations: 1.728 MB / 0.9703 GB, free: 1.625 MB / 0.7012 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 13 * Number of states: 20 (vol.dynBal.medium.Xi[1],vol.dynBal.U,vol.dynBal.m,vol.dynBal.mC[1],vol1.dynBal.medium.Xi[1],vol1.dynBal.U,vol1.dynBal.m,vol1.dynBal.mC[1],vol2.dynBal.medium.Xi[1],vol2.dynBal.U,vol2.dynBal.m,vol2.dynBal.mC[1],vol3.dynBal.medium.Xi[1],vol3.dynBal.U,vol3.dynBal.m,vol3.dynBal.mC[1],vol4.dynBal.medium.Xi[1],vol4.dynBal.U,vol4.dynBal.m,vol4.dynBal.mC[1]) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (186): * Single equations (assignments): 179 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 7 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 7 {1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.00666/1.78, allocations: 5.078 MB / 0.9753 GB, free: 13.52 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.006369/1.786, allocations: 3.349 MB / 0.9785 GB, free: 11.21 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.149e-05/1.786, allocations: 4.25 kB / 0.9785 GB, free: 11.21 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.001799/1.788, allocations: 1.051 MB / 0.9796 GB, free: 10.49 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.008982/1.797, allocations: 1.571 MB / 0.9811 GB, free: 9.168 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02701/1.824, allocations: 18.82 MB / 0.9995 GB, free: 6.605 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00373/1.828, allocations: 2.258 MB / 1.002 GB, free: 4.445 MB / 0.7325 GB Notification: Performance of simCode: alias equations: time 0.006104/1.834, allocations: 1.115 MB / 1.003 GB, free: 3.324 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003371/1.837, allocations: 1.28 MB / 1.004 GB, free: 3.02 MB / 0.7325 GB Notification: Performance of SimCode: time 5.641e-06/1.837, allocations: 0 / 1.004 GB, free: 3.02 MB / 0.7325 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1412/1.979, allocations: 76.84 MB / 1.079 GB, free: 7.391 MB / 0.8106 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002358/1.979, allocations: 265.1 kB / 1.079 GB, free: 7.035 MB / 0.8106 GB Notification: Performance of buildModelFMU: Generate platform static: time 4.318/6.297, allocations: 0 / 1.079 GB, free: 7.035 MB / 0.8106 GB (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_IBPSA_Fluid_Sources_Examples_TraceSubstancesFlowSource_fmu --startTime=0 --stopTime=600 --timeout=50 --tolerance=1e-06 BuildSysPro_BuildSysPro_IBPSA_Fluid_Sources_Examples_TraceSubstancesFlowSource.fmu > BuildSysPro_BuildSysPro.IBPSA.Fluid.Sources.Examples.TraceSubstancesFlowSource.pipe 2>&1) Environment - environmentSimulation: