Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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: translateModel(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity") translateModel(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0007977/0.0007978, allocations: 90.52 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00637/0.00637, allocations: 171.1 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.677/1.677, allocations: 205.4 MB / 222.4 MB, free: 5.566 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.543/1.543, allocations: 252 MB / 0.5105 GB, free: 4.652 MB / 414.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005335/0.0005335, allocations: 12 kB / 0.6249 GB, free: 0.7227 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5429/0.5434, allocations: 106.3 MB / 0.7287 GB, free: 11.25 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity): time 0.03158/0.575, allocations: 30.86 MB / 0.7589 GB, free: 12.28 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.01257/0.5877, allocations: 5.273 MB / 0.764 GB, free: 6.996 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00158/0.5893, allocations: 27.81 kB / 0.764 GB, free: 6.969 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.001165/0.5905, allocations: 314.2 kB / 0.7643 GB, free: 6.66 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.004798/0.5953, allocations: 1.325 MB / 0.7656 GB, free: 5.332 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.002445/0.5978, allocations: 0.7495 MB / 0.7664 GB, free: 4.59 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.004221/0.602, allocations: 2.822 MB / 0.7691 GB, free: 1.758 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.00109/0.6031, allocations: 0.5 MB / 0.7696 GB, free: 1.242 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001573/0.6047, allocations: 0.6494 MB / 0.7702 GB, free: 0.5898 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0007903/0.6055, allocations: 0.5443 MB / 0.7708 GB, free: 44 kB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 6.118e-05/0.6056, allocations: 20 kB / 0.7708 GB, free: 24 kB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002746/0.6083, allocations: 1.142 MB / 0.7719 GB, free: 14.88 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0001714/0.6085, allocations: 131.4 kB / 0.772 GB, free: 14.75 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0004008/0.6089, allocations: 367.8 kB / 0.7724 GB, free: 14.38 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.002194/0.6111, allocations: 1.461 MB / 0.7738 GB, free: 12.92 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 5.4e-06/0.6111, allocations: 0 / 0.7738 GB, free: 12.92 MB / 0.5919 GB Notification: Performance of FrontEnd: time 2.755e-06/0.6111, allocations: 7.938 kB / 0.7738 GB, free: 12.91 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 1.047e-05/0.6112, allocations: 0 / 0.7738 GB, free: 12.91 MB / 0.5919 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 110 * Number of variables: 110 Notification: Performance of Generate backend data structure: time 0.001818/0.613, allocations: 0.9424 MB / 0.7747 GB, free: 11.92 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 6.081e-05/0.6131, allocations: 8.031 kB / 0.7747 GB, free: 11.91 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002391/0.6155, allocations: 283.8 kB / 0.775 GB, free: 11.63 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001346/0.6168, allocations: 0.6631 MB / 0.7757 GB, free: 10.93 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.072e-05/0.6169, allocations: 40.94 kB / 0.7757 GB, free: 10.89 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.206e-05/0.617, allocations: 40 kB / 0.7757 GB, free: 10.85 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001016/0.618, allocations: 0.5321 MB / 0.7763 GB, free: 10.28 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.927e-05/0.618, allocations: 0 / 0.7763 GB, free: 10.28 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.3e-05/0.6181, allocations: 20 kB / 0.7763 GB, free: 10.26 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.449e-05/0.6181, allocations: 19.98 kB / 0.7763 GB, free: 10.24 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0007265/0.6188, allocations: 359.7 kB / 0.7766 GB, free: 9.891 MB / 0.5919 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 0.00363/0.6225, allocations: 2.818 MB / 0.7794 GB, free: 6.84 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005776/0.6231, allocations: 301.8 kB / 0.7797 GB, free: 6.527 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002666/0.6233, allocations: 151.5 kB / 0.7798 GB, free: 6.375 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006278/0.624, allocations: 0.6613 MB / 0.7805 GB, free: 5.566 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.589e-05/0.624, allocations: 46.73 kB / 0.7805 GB, free: 5.512 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=28): time 2.304e-06/0.624, allocations: 0 / 0.7805 GB, free: 5.512 MB / 0.5919 GB Notification: Performance of matching and sorting (n=40): time 0.006705/0.6307, allocations: 2.082 MB / 0.7825 GB, free: 3.352 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.941e-05/0.6309, allocations: 89.05 kB / 0.7826 GB, free: 3.246 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0008679/0.6318, allocations: 0.5145 MB / 0.7831 GB, free: 2.723 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 5.359e-05/0.6318, allocations: 33.7 kB / 0.7832 GB, free: 2.684 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002882/0.6321, allocations: 324.4 kB / 0.7835 GB, free: 2.359 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001527/0.6323, allocations: 141.9 kB / 0.7836 GB, free: 2.219 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.054e-05/0.6324, allocations: 41.7 kB / 0.7836 GB, free: 2.172 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0002199/0.6326, allocations: 366.8 kB / 0.784 GB, free: 1.805 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003555/0.6329, allocations: 169 kB / 0.7842 GB, free: 1.641 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004461/0.6334, allocations: 295 kB / 0.7844 GB, free: 1.309 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009641/0.6344, allocations: 467.5 kB / 0.7849 GB, free: 0.8086 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.065e-06/0.6344, allocations: 0 / 0.7849 GB, free: 0.8086 MB / 0.5919 GB Notification: Performance of matching and sorting (n=55) (initialization): time 0.001957/0.6363, allocations: 0.7322 MB / 0.7856 GB, free: 64 kB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 0.0001768/0.6365, allocations: 188.2 kB / 0.7858 GB, free: 15.83 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.028e-05/0.6366, allocations: 4 kB / 0.7858 GB, free: 15.83 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00113/0.6377, allocations: 285.4 kB / 0.7861 GB, free: 15.54 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002925/0.638, allocations: 63.91 kB / 0.7861 GB, free: 15.48 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.007572/0.6456, allocations: 4.323 MB / 0.7903 GB, free: 10.89 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001337/0.647, allocations: 87.81 kB / 0.7904 GB, free: 10.8 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.308e-05/0.6471, allocations: 16.12 kB / 0.7904 GB, free: 10.79 MB / 0.6075 GB Notification: Performance of prepare postOptimizeDAE: time 1.152e-05/0.6471, allocations: 7.938 kB / 0.7904 GB, free: 10.78 MB / 0.6075 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00181/0.6489, allocations: 0.6645 MB / 0.7911 GB, free: 10.11 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.41e-06/0.6489, allocations: 4 kB / 0.7911 GB, free: 10.11 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009966/0.6499, allocations: 289.7 kB / 0.7914 GB, free: 9.816 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002787/0.6502, allocations: 63.91 kB / 0.7914 GB, free: 9.754 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.006609/0.6568, allocations: 4.337 MB / 0.7957 GB, free: 5.152 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001222/0.6581, allocations: 83.81 kB / 0.7957 GB, free: 5.07 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.02e-05/0.6581, allocations: 20 kB / 0.7958 GB, free: 5.051 MB / 0.6075 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 14 * 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 (39): * Single equations (assignments): 37 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,8), (2,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0004534/0.6586, allocations: 288.8 kB / 0.796 GB, free: 4.758 MB / 0.6075 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001361/0.6587, allocations: 59.53 kB / 0.7961 GB, free: 4.699 MB / 0.6075 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00183/0.6606, allocations: 0.6602 MB / 0.7967 GB, free: 4.027 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.781e-06/0.6606, allocations: 8.062 kB / 0.7968 GB, free: 4.02 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.038e-06/0.6606, allocations: 8 kB / 0.7968 GB, free: 4.012 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001619/0.6622, allocations: 0.757 MB / 0.7975 GB, free: 3.199 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003248/0.6655, allocations: 1.683 MB / 0.7991 GB, free: 1.449 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.977e-06/0.6655, allocations: 4.031 kB / 0.7991 GB, free: 1.445 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002373/0.6658, allocations: 51.91 kB / 0.7992 GB, free: 1.395 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000967/0.6667, allocations: 249.5 kB / 0.7994 GB, free: 1.145 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.442e-05/0.6668, allocations: 11.98 kB / 0.7994 GB, free: 1.133 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00554/0.6723, allocations: 3.966 MB / 0.8033 GB, free: 12.89 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.943e-06/0.6724, allocations: 0 / 0.8033 GB, free: 12.89 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002223/0.6746, allocations: 0.9426 MB / 0.8042 GB, free: 11.93 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003969/0.675, allocations: 188.4 kB / 0.8044 GB, free: 11.72 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 7.686e-05/0.6751, allocations: 8 kB / 0.8044 GB, free: 11.71 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009657/0.6761, allocations: 79.81 kB / 0.8045 GB, free: 11.64 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001179/0.6762, allocations: 35.89 kB / 0.8045 GB, free: 11.6 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.479e-05/0.6762, allocations: 12 kB / 0.8045 GB, free: 11.59 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.0005907/0.6768, allocations: 358.8 kB / 0.8049 GB, free: 11.24 MB / 0.6231 GB Notification: Performance of sort global known variables: time 4.51e-07/0.6768, allocations: 8 kB / 0.8049 GB, free: 11.23 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.001812/0.6787, allocations: 407.9 kB / 0.8053 GB, free: 10.84 MB / 0.6231 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 2 (vol.ports[1].h_outflow,vol1.ports[1].h_outflow) * 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 (28): * Single equations (assignments): 26 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,6), (2,4)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007224/0.6794, allocations: 294.5 kB / 0.8056 GB, free: 10.55 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.003158/0.6826, allocations: 1.366 MB / 0.8069 GB, free: 9.129 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 4.087e-06/0.6826, allocations: 0 / 0.8069 GB, free: 9.129 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.001378/0.684, allocations: 0.5443 MB / 0.8074 GB, free: 8.559 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001963/0.686, allocations: 346.2 kB / 0.8078 GB, free: 8.219 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002531/0.6885, allocations: 1.516 MB / 0.8092 GB, free: 6.684 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005956/0.6891, allocations: 0.9262 MB / 0.8101 GB, free: 5.727 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.0006592/0.6898, allocations: 134.2 kB / 0.8103 GB, free: 5.598 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000153/0.6899, allocations: 51.42 kB / 0.8103 GB, free: 5.547 MB / 0.6231 GB Notification: Performance of SimCode: time 6.02e-07/0.6899, allocations: 3.938 kB / 0.8103 GB, free: 5.543 MB / 0.6231 GB Notification: Performance of Templates: time 0.03069/0.7206, allocations: 17.39 MB / 0.8273 GB, free: 4.391 MB / 0.6387 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.MixingVolumes.Validation.CoupledVolumesSpecializedWaterTemperatureDependentDensity.pipe 2>&1) Environment - environmentSimulation: