Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildSysPro_BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness.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.HeatExchangers.Validation.ConstantEffectiveness,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_HeatExchangers_Validation_ConstantEffectiveness",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness,fileNamePrefix="BuildSysPro_BuildSysPro_IBPSA_Fluid_HeatExchangers_Validation_ConstantEffectiveness",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 0.0008114/0.0008113, allocations: 90.75 kB / 15.06 MB, free: 1.098 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008755/0.0008755, allocations: 172.7 kB / 15.95 MB, free: 208 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.314/1.314, allocations: 223.2 MB / 240 MB, free: 5.316 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildSysPro 3.5.0-master/package.mo): time 1.016/1.016, allocations: 143.4 MB / 434.4 MB, free: 13.61 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003634/0.0003637, allocations: 12 kB / 0.5161 GB, free: 11.18 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1665/0.1669, allocations: 83.41 MB / 0.5975 GB, free: 7.711 MB / 0.4981 GB Notification: Performance of NFInst.instantiate(BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness): time 0.5274/0.6944, allocations: 182.2 MB / 0.7755 GB, free: 5.832 MB / 0.5919 GB Notification: Performance of NFInst.instExpressions: time 0.01124/0.7057, allocations: 7.193 MB / 0.7825 GB, free: 14.62 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00156/0.7073, allocations: 39.69 kB / 0.7825 GB, free: 14.59 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 0.001871/0.7092, allocations: 456.9 kB / 0.783 GB, free: 14.14 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.00509/0.7143, allocations: 1.469 MB / 0.7844 GB, free: 12.66 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.003074/0.7174, allocations: 0.89 MB / 0.7853 GB, free: 11.79 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.004344/0.7218, allocations: 2.976 MB / 0.7882 GB, free: 8.805 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00168/0.7235, allocations: 0.7164 MB / 0.7889 GB, free: 8.086 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003345/0.7268, allocations: 1.213 MB / 0.7901 GB, free: 6.867 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00181/0.7287, allocations: 0.7546 MB / 0.7908 GB, free: 6.109 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 0.0003516/0.729, allocations: 47.94 kB / 0.7908 GB, free: 6.062 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003531/0.7326, allocations: 1.263 MB / 0.7921 GB, free: 4.797 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 0.0005687/0.7332, allocations: 254.9 kB / 0.7923 GB, free: 4.547 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 0.0006431/0.7338, allocations: 241.1 kB / 0.7925 GB, free: 4.305 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.002691/0.7365, allocations: 1.559 MB / 0.7941 GB, free: 2.742 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 5.159e-06/0.7365, allocations: 0 / 0.7941 GB, free: 2.742 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.205e-06/0.7366, allocations: 0 / 0.7941 GB, free: 2.742 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 5.546e-05/0.7366, allocations: 3.938 kB / 0.7941 GB, free: 2.738 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 177 * Number of variables: 177 Notification: Performance of Generate backend data structure: time 0.003931/0.7406, allocations: 1.475 MB / 0.7955 GB, free: 1.211 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.518e-05/0.7406, allocations: 8.031 kB / 0.7955 GB, free: 1.203 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003211/0.7409, allocations: 114.5 kB / 0.7956 GB, free: 1.082 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002354/0.7433, allocations: 482.1 kB / 0.7961 GB, free: 0.6094 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00204/0.7454, allocations: 0.8797 MB / 0.797 GB, free: 15.68 MB / 0.6231 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0005765/0.7459, allocations: 189.8 kB / 0.7971 GB, free: 15.5 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001792/0.7461, allocations: 72 kB / 0.7972 GB, free: 15.43 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00261/0.7488, allocations: 1.13 MB / 0.7983 GB, free: 14.28 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.38e-05/0.7488, allocations: 4.516 kB / 0.7983 GB, free: 14.28 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.756e-05/0.7489, allocations: 24 kB / 0.7983 GB, free: 14.25 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.853e-05/0.749, allocations: 33.98 kB / 0.7984 GB, free: 14.22 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003175/0.7521, allocations: 1.269 MB / 0.7996 GB, free: 12.95 MB / 0.6231 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 0.006983/0.7591, allocations: 4.163 MB / 0.8037 GB, free: 8.5 MB / 0.6231 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002461/0.7616, allocations: 0.9381 MB / 0.8046 GB, free: 7.555 MB / 0.6231 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001261/0.7629, allocations: 0.5295 MB / 0.8051 GB, free: 7.023 MB / 0.6231 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0009128/0.7638, allocations: 0.6526 MB / 0.8057 GB, free: 6.242 MB / 0.6231 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001595/0.7654, allocations: 0.6461 MB / 0.8064 GB, free: 5.578 MB / 0.6231 GB Notification: Performance of pre-optimization done (n=57): time 4.718e-06/0.7655, allocations: 3.938 kB / 0.8064 GB, free: 5.574 MB / 0.6231 GB Notification: Performance of matching and sorting (n=57): time 0.004208/0.7697, allocations: 1.513 MB / 0.8079 GB, free: 4.055 MB / 0.6231 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.8e-05/0.7698, allocations: 89.67 kB / 0.8079 GB, free: 3.949 MB / 0.6231 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001376/0.7712, allocations: 0.8277 MB / 0.8087 GB, free: 3.098 MB / 0.6231 GB Notification: Performance of collectPreVariables (initialization): time 9.525e-05/0.7713, allocations: 41.7 kB / 0.8088 GB, free: 3.051 MB / 0.6231 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004078/0.7717, allocations: 428.4 kB / 0.8092 GB, free: 2.629 MB / 0.6231 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001904/0.7719, allocations: 189.2 kB / 0.8094 GB, free: 2.441 MB / 0.6231 GB Notification: Performance of simplifyInitialFunctions (initialization): time 4.872e-05/0.772, allocations: 12 kB / 0.8094 GB, free: 2.43 MB / 0.6231 GB Notification: Performance of setup shared object (initialization): time 0.0001491/0.7721, allocations: 326 kB / 0.8097 GB, free: 2.105 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001215/0.7733, allocations: 460.7 kB / 0.8101 GB, free: 1.656 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001297/0.7746, allocations: 0.5674 MB / 0.8107 GB, free: 1.051 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001215/0.7759, allocations: 0.4918 MB / 0.8112 GB, free: 0.5508 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.362e-06/0.7759, allocations: 3.984 kB / 0.8112 GB, free: 0.5469 MB / 0.6231 GB Notification: Performance of matching and sorting (n=70) (initialization): time 0.002923/0.7788, allocations: 1.148 MB / 0.8123 GB, free: 15.38 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001626/0.779, allocations: 184.6 kB / 0.8125 GB, free: 15.17 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.928e-06/0.779, allocations: 96 / 0.8125 GB, free: 15.17 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.216e-05/0.779, allocations: 7.938 kB / 0.8125 GB, free: 15.16 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001352/0.7804, allocations: 243.7 kB / 0.8127 GB, free: 14.92 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007947/0.7812, allocations: 1.199 MB / 0.8139 GB, free: 13.68 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001161/0.7824, allocations: 187.4 kB / 0.8141 GB, free: 13.49 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.526e-05/0.7825, allocations: 32.02 kB / 0.8141 GB, free: 13.46 MB / 0.6387 GB Notification: Performance of prepare postOptimizeDAE: time 1.202e-05/0.7825, allocations: 4 kB / 0.8141 GB, free: 13.46 MB / 0.6387 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002625/0.7851, allocations: 1.053 MB / 0.8151 GB, free: 12.4 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.162e-06/0.7851, allocations: 4 kB / 0.8151 GB, free: 12.39 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (initialization): time 8.055e-06/0.7852, allocations: 4 kB / 0.8151 GB, free: 12.39 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001007/0.7862, allocations: 227.8 kB / 0.8153 GB, free: 12.17 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.83e-05/0.7862, allocations: 8.625 kB / 0.8154 GB, free: 12.16 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001296/0.7875, allocations: 183.2 kB / 0.8155 GB, free: 11.98 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001015/0.7876, allocations: 31.92 kB / 0.8156 GB, free: 11.95 MB / 0.6387 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 5 ($whenCondition1,$PRE.trapezoid.T_start,trapezoid.T_start,$PRE.trapezoid.count,trapezoid.count) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (69): * Single equations (assignments): 66 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * 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: 2 {1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0008397/0.7885, allocations: 341 kB / 0.8159 GB, free: 11.61 MB / 0.6387 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004451/0.7889, allocations: 98.78 kB / 0.816 GB, free: 11.51 MB / 0.6387 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003521/0.7925, allocations: 1.207 MB / 0.8172 GB, free: 10.3 MB / 0.6387 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.622e-05/0.7925, allocations: 8 kB / 0.8172 GB, free: 10.3 MB / 0.6387 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.022e-05/0.7925, allocations: 0 / 0.8172 GB, free: 10.3 MB / 0.6387 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.638e-06/0.7925, allocations: 3.984 kB / 0.8172 GB, free: 10.29 MB / 0.6387 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005351/0.7979, allocations: 2.405 MB / 0.8195 GB, free: 7.801 MB / 0.6387 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.294e-05/0.7979, allocations: 7.125 kB / 0.8195 GB, free: 7.797 MB / 0.6387 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001039/0.7989, allocations: 216.8 kB / 0.8197 GB, free: 7.586 MB / 0.6387 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.667e-05/0.799, allocations: 8 kB / 0.8197 GB, free: 7.578 MB / 0.6387 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.31e-05/0.799, allocations: 19.98 kB / 0.8198 GB, free: 7.559 MB / 0.6387 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0006933/0.7997, allocations: 1.188 MB / 0.8209 GB, free: 6.324 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.599e-06/0.7998, allocations: 4.578 kB / 0.8209 GB, free: 6.32 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002993/0.8028, allocations: 1.29 MB / 0.8222 GB, free: 4.98 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006118/0.8034, allocations: 287.6 kB / 0.8225 GB, free: 4.68 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002258/0.8036, allocations: 16 kB / 0.8225 GB, free: 4.664 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00118/0.8048, allocations: 155.8 kB / 0.8226 GB, free: 4.512 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001756/0.805, allocations: 68.25 kB / 0.8227 GB, free: 4.445 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.368e-05/0.8051, allocations: 31.97 kB / 0.8227 GB, free: 4.414 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.001023/0.8061, allocations: 0.5704 MB / 0.8233 GB, free: 3.832 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.3e-07/0.8061, allocations: 0 / 0.8233 GB, free: 3.832 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.001635/0.8078, allocations: 487 kB / 0.8237 GB, free: 3.355 MB / 0.6387 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 12 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,trapezoid.T_start,trapezoid.count) * Number of discrete states: 1 (trapezoid.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (63): * Single equations (assignments): 57 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * 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: 2 {1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.003948/0.8117, allocations: 2.035 MB / 0.8257 GB, free: 1.266 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.004732/0.8165, allocations: 1.74 MB / 0.8274 GB, free: 15.5 MB / 0.6544 GB Notification: Performance of simCode: created event and clocks part: time 7.103e-06/0.8165, allocations: 0 / 0.8274 GB, free: 15.5 MB / 0.6544 GB Notification: Performance of simCode: created simulation system equations: time 0.001611/0.8181, allocations: 0.5964 MB / 0.828 GB, free: 14.91 MB / 0.6544 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00259/0.8207, allocations: 466.2 kB / 0.8285 GB, free: 14.46 MB / 0.6544 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01526/0.836, allocations: 6.316 MB / 0.8346 GB, free: 7.922 MB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008984/0.837, allocations: 1.039 MB / 0.8356 GB, free: 6.855 MB / 0.6544 GB Notification: Performance of simCode: alias equations: time 0.001572/0.8386, allocations: 296.8 kB / 0.8359 GB, free: 6.578 MB / 0.6544 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006458/0.8392, allocations: 359.3 kB / 0.8363 GB, free: 6.23 MB / 0.6544 GB Notification: Performance of SimCode: time 3.447e-06/0.8393, allocations: 0 / 0.8363 GB, free: 6.23 MB / 0.6544 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.3511/1.19, allocations: 27.09 MB / 0.8627 GB, free: 207.1 MB / 0.67 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001747/1.191, allocations: 286 kB / 0.863 GB, free: 206.8 MB / 0.67 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.591/3.782, allocations: 2.188 kB / 0.863 GB, free: 206.8 MB / 0.67 GB (rm -f BuildSysPro_BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe ; mkfifo BuildSysPro_BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe ; head -c 1048576 < BuildSysPro_BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe >> ../files/BuildSysPro_BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_BuildSysPro_BuildSysPro_IBPSA_Fluid_HeatExchangers_Validation_ConstantEffectiveness_fmu --startTime=0 --stopTime=360 --timeout=50 --tolerance=1e-06 BuildSysPro_BuildSysPro_IBPSA_Fluid_HeatExchangers_Validation_ConstantEffectiveness.fmu > BuildSysPro_BuildSysPro.IBPSA.Fluid.HeatExchangers.Validation.ConstantEffectiveness.pipe 2>&1) Environment - environmentSimulation: