Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.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.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0009014/0.0009012, allocations: 91.84 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 0.001085/0.001085, 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 3.2.3+maint.om/package.mo): time 1.679/1.679, allocations: 205.4 MB / 222.1 MB, free: 5.895 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 1.604/1.604, allocations: 252 MB / 0.5102 GB, free: 4.785 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 0.0006649/0.0006651, allocations: 15.44 kB / 0.6243 GB, free: 1.109 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5755/0.5762, allocations: 106.3 MB / 0.7282 GB, free: 11.43 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY): time 0.01929/0.5956, allocations: 17.8 MB / 0.7455 GB, free: 9.57 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.0117/0.6073, allocations: 6.789 MB / 0.7522 GB, free: 2.762 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00179/0.6091, allocations: 47.88 kB / 0.7522 GB, free: 2.715 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001114/0.6103, allocations: 417 kB / 0.7526 GB, free: 2.305 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.003137/0.6134, allocations: 1.202 MB / 0.7538 GB, free: 1.098 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.002607/0.616, allocations: 0.7992 MB / 0.7546 GB, free: 304 kB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.008201/0.6242, allocations: 6.992 MB / 0.7614 GB, free: 9.285 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01387/0.6382, allocations: 8.628 MB / 0.7698 GB, free: 0.5781 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004758/0.6429, allocations: 1.837 MB / 0.7716 GB, free: 14.73 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004751/0.6477, allocations: 2.804 MB / 0.7744 GB, free: 11.92 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0005583/0.6483, allocations: 260 kB / 0.7746 GB, free: 11.67 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001817/0.6501, allocations: 0.6907 MB / 0.7753 GB, free: 10.98 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.0021/0.6522, allocations: 2.039 MB / 0.7773 GB, free: 8.934 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.0009388/0.6532, allocations: 0.7615 MB / 0.778 GB, free: 8.164 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.006809/0.66, allocations: 7.116 MB / 0.785 GB, free: 1.031 MB / 0.5919 GB Notification: Performance of FrontEnd - DAE generated: time 6.002e-06/0.66, allocations: 7.875 kB / 0.785 GB, free: 1.023 MB / 0.5919 GB Notification: Performance of FrontEnd: time 1.783e-06/0.66, allocations: 0 / 0.785 GB, free: 1.023 MB / 0.5919 GB Notification: Performance of Transformations before backend: time 0.0001817/0.6602, allocations: 0 / 0.785 GB, free: 1.023 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: 1094 * Number of variables: 1094 Notification: Performance of Generate backend data structure: time 0.007182/0.6674, allocations: 3.333 MB / 0.7882 GB, free: 13.63 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.38e-05/0.6674, allocations: 8.031 kB / 0.7882 GB, free: 13.62 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01064/0.6781, allocations: 2.367 MB / 0.7905 GB, free: 11.25 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0062/0.6843, allocations: 2.268 MB / 0.7928 GB, free: 8.934 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002896/0.6846, allocations: 303.9 kB / 0.7931 GB, free: 8.637 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008047/0.6855, allocations: 384 kB / 0.7934 GB, free: 8.262 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01556/0.701, allocations: 7.643 MB / 0.8009 GB, free: 0.5039 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.91e-05/0.7011, allocations: 0 / 0.8009 GB, free: 0.5039 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004397/0.7016, allocations: 168 kB / 0.801 GB, free: 348 kB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004354/0.702, allocations: 346.7 kB / 0.8014 GB, free: 0 / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01558/0.7176, allocations: 7.237 MB / 0.8084 GB, free: 8.75 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 0.04172/0.7594, allocations: 28.53 MB / 0.8363 GB, free: 9.828 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007151/0.7666, allocations: 3.67 MB / 0.8399 GB, free: 5.996 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004499/0.7711, allocations: 1.987 MB / 0.8418 GB, free: 3.988 MB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002901/0.7714, allocations: 134.2 kB / 0.842 GB, free: 3.84 MB / 0.6544 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.518e-05/0.7715, allocations: 55.86 kB / 0.842 GB, free: 3.777 MB / 0.6544 GB Notification: Performance of pre-optimization done (n=176): time 3.847e-06/0.7715, allocations: 4 kB / 0.842 GB, free: 3.773 MB / 0.6544 GB Notification: Performance of matching and sorting (n=221): time 0.07848/0.85, allocations: 24.77 MB / 0.8662 GB, free: 10.9 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001679/0.8502, allocations: 231.6 kB / 0.8664 GB, free: 10.63 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003572/0.8538, allocations: 1.62 MB / 0.868 GB, free: 8.996 MB / 0.6856 GB Notification: Performance of collectPreVariables (initialization): time 0.000536/0.8544, allocations: 61.7 kB / 0.8681 GB, free: 8.93 MB / 0.6856 GB Notification: Performance of collectInitialEqns (initialization): time 0.001483/0.8559, allocations: 1.748 MB / 0.8698 GB, free: 7.156 MB / 0.6856 GB Notification: Performance of collectInitialBindings (initialization): time 0.001279/0.8572, allocations: 0.7627 MB / 0.8705 GB, free: 6.383 MB / 0.6856 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0005782/0.8578, allocations: 60 kB / 0.8706 GB, free: 6.324 MB / 0.6856 GB Notification: Performance of setup shared object (initialization): time 0.0003898/0.8582, allocations: 444.5 kB / 0.871 GB, free: 5.883 MB / 0.6856 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005835/0.864, allocations: 2.442 MB / 0.8734 GB, free: 3.438 MB / 0.6856 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006316/0.8703, allocations: 3.558 MB / 0.8769 GB, free: 15.38 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.006223/0.8766, allocations: 2.937 MB / 0.8797 GB, free: 12.45 MB / 0.7012 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.383e-05/0.8767, allocations: 15.94 kB / 0.8797 GB, free: 12.43 MB / 0.7012 GB Notification: Performance of matching and sorting (n=400) (initialization): time 0.02911/0.9058, allocations: 9.99 MB / 0.8895 GB, free: 2.414 MB / 0.7012 GB Notification: Performance of prepare postOptimizeDAE: time 0.001273/0.9071, allocations: 1.114 MB / 0.8906 GB, free: 0.8086 MB / 0.7012 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.158e-05/0.9072, allocations: 40 kB / 0.8906 GB, free: 0.7695 MB / 0.7012 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02038/0.9276, allocations: 5.471 MB / 0.896 GB, free: 11.29 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004686/0.9324, allocations: 1.033 MB / 0.897 GB, free: 10.25 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.5398/1.472, allocations: 19.27 MB / 0.9158 GB, free: 153.2 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004551/1.477, allocations: 0.5767 MB / 0.9164 GB, free: 153.1 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000746/1.478, allocations: 161.2 kB / 0.9165 GB, free: 153.1 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.891e-05/1.478, allocations: 4.062 kB / 0.9165 GB, free: 153.1 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01958/1.497, allocations: 8.284 MB / 0.9246 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001621/1.497, allocations: 34.03 kB / 0.9246 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01123/1.509, allocations: 3.45 MB / 0.928 GB, free: 150.6 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004256/1.513, allocations: 1.154 MB / 0.9291 GB, free: 150.6 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01621/1.529, allocations: 10.62 MB / 0.9395 GB, free: 145.3 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003904/1.533, allocations: 0.5433 MB / 0.94 GB, free: 145.1 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004126/1.534, allocations: 162.3 kB / 0.9402 GB, free: 145.1 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 159 * 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 (330): * Single equations (assignments): 328 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(6,100.0%) 30} * Non-linear torn systems: 1 {6 30} Notification: Performance of prepare postOptimizeDAE: time 0.002875/1.536, allocations: 1.692 MB / 0.9418 GB, free: 143.8 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005685/1.537, allocations: 200.4 kB / 0.942 GB, free: 143.7 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01954/1.557, allocations: 8.781 MB / 0.9506 GB, free: 134.9 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.501e-05/1.557, allocations: 24 kB / 0.9506 GB, free: 134.9 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.379e-05/1.557, allocations: 8 kB / 0.9506 GB, free: 134.9 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.237e-05/1.557, allocations: 11.97 kB / 0.9506 GB, free: 134.9 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02605/1.583, allocations: 14.6 MB / 0.9649 GB, free: 120.1 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.043e-05/1.583, allocations: 8 kB / 0.9649 GB, free: 120.1 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002757/1.586, allocations: 0.7139 MB / 0.9656 GB, free: 119.4 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01581/1.601, allocations: 5.133 MB / 0.9706 GB, free: 114.3 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005779/1.602, allocations: 67.89 kB / 0.9707 GB, free: 114.2 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02439/1.626, allocations: 18.21 MB / 0.9885 GB, free: 95.79 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.765e-06/1.626, allocations: 15.88 kB / 0.9885 GB, free: 95.78 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01906/1.646, allocations: 8.842 MB / 0.9971 GB, free: 86.81 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001763/1.647, allocations: 0.6578 MB / 0.9978 GB, free: 86.14 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003765/1.648, allocations: 47.98 kB / 0.9978 GB, free: 86.09 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002664/1.65, allocations: 0.4953 MB / 0.9983 GB, free: 85.59 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005843/1.651, allocations: 189.5 kB / 0.9985 GB, free: 85.41 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001686/1.651, allocations: 79.95 kB / 0.9985 GB, free: 85.33 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001337/1.653, allocations: 1.082 MB / 0.9996 GB, free: 84.25 MB / 0.7169 GB Notification: Performance of sort global known variables: time 2.41e-07/1.653, allocations: 4 kB / 0.9996 GB, free: 84.25 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.005665/1.658, allocations: 1.715 MB / 1.001 GB, free: 82.53 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * 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 simulation (154): * Single equations (assignments): 152 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(6,100.0%) 30} * Non-linear torn systems: 1 {6 30} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003704/1.659, allocations: 179.1 kB / 1.001 GB, free: 82.35 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.02279/1.681, allocations: 10.83 MB / 1.012 GB, free: 71.49 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.168e-05/1.681, allocations: 0 / 1.012 GB, free: 71.49 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.008658/1.69, allocations: 3.827 MB / 1.016 GB, free: 67.64 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002282/1.692, allocations: 261.2 kB / 1.016 GB, free: 67.39 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02064/1.713, allocations: 10.82 MB / 1.027 GB, free: 56.45 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002733/1.716, allocations: 2.912 MB / 1.029 GB, free: 53.51 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.00502/1.721, allocations: 1.68 MB / 1.031 GB, free: 51.83 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005958/1.722, allocations: 171.3 kB / 1.031 GB, free: 51.66 MB / 0.7169 GB Notification: Performance of SimCode: time 1.473e-06/1.722, allocations: 3.844 kB / 1.031 GB, free: 51.66 MB / 0.7169 GB Notification: Performance of Templates: time 0.08486/1.806, allocations: 61.37 MB / 1.091 GB, free: 6.473 MB / 0.7325 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YY.pipe 2>&1) Environment - environmentSimulation: