Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.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 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.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.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes") translateModel(Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001001/0.001001, allocations: 99.47 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 0.001108/0.001108, 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 3.2.3+maint.om/package.mo): time 1.436/1.436, allocations: 205.4 MB / 222.1 MB, free: 5.52 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.768/1.768, allocations: 292.5 MB / 0.5497 GB, free: 14.66 MB / 462.1 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 0.0005956/0.0005957, allocations: 16.98 kB / 0.6736 GB, free: 26.18 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.271/0.2716, allocations: 116.3 MB / 0.7871 GB, free: 12 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes): time 0.07425/0.3459, allocations: 76.33 MB / 0.8617 GB, free: 15.48 MB / 0.6856 GB Notification: Performance of NFInst.instExpressions: time 0.03975/0.3857, allocations: 28.84 MB / 0.8898 GB, free: 2.586 MB / 0.7012 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005668/0.3914, allocations: 178.6 kB / 0.89 GB, free: 2.41 MB / 0.7012 GB Notification: Performance of NFTyping.typeComponents: time 0.005667/0.3971, allocations: 1.66 MB / 0.8916 GB, free: 0.7422 MB / 0.7012 GB Notification: Performance of NFTyping.typeBindings: time 0.01154/0.4086, allocations: 3.86 MB / 0.8954 GB, free: 12.87 MB / 0.7169 GB Notification: Performance of NFTyping.typeClassSections: time 0.02168/0.4303, allocations: 8.055 MB / 0.9033 GB, free: 4.855 MB / 0.7169 GB Notification: Performance of NFFlatten.flatten: time 0.5007/0.931, allocations: 7.168 MB / 0.9103 GB, free: 13.39 MB / 0.7169 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007611/0.9387, allocations: 3.287 MB / 0.9135 GB, free: 29.16 MB / 0.7325 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01159/0.9503, allocations: 4.248 MB / 0.9176 GB, free: 29.15 MB / 0.7325 GB Notification: Performance of NFSimplifyModel.simplify: time 0.009047/0.9594, allocations: 3 MB / 0.9205 GB, free: 29.14 MB / 0.7325 GB Notification: Performance of NFPackage.collectConstants: time 0.002377/0.9618, allocations: 243 kB / 0.9208 GB, free: 29.14 MB / 0.7325 GB Notification: Performance of NFFlatten.collectFunctions: time 0.009957/0.9718, allocations: 2.049 MB / 0.9228 GB, free: 29.13 MB / 0.7325 GB Notification: Performance of NFScalarize.scalarize: time 0.004688/0.9765, allocations: 1.693 MB / 0.9244 GB, free: 29.13 MB / 0.7325 GB Notification: Performance of NFVerifyModel.verify: time 0.0044/0.9809, allocations: 0.9743 MB / 0.9254 GB, free: 29.1 MB / 0.7325 GB Notification: Performance of NFConvertDAE.convert: time 0.01596/0.9969, allocations: 6.195 MB / 0.9314 GB, free: 28.62 MB / 0.7325 GB Notification: Performance of FrontEnd - DAE generated: time 4.98e-06/0.997, allocations: 0 / 0.9314 GB, free: 28.62 MB / 0.7325 GB Notification: Performance of FrontEnd: time 3.517e-06/0.997, allocations: 1.062 kB / 0.9314 GB, free: 28.62 MB / 0.7325 GB Notification: Performance of Transformations before backend: time 0.0004735/0.9975, allocations: 0 / 0.9314 GB, free: 28.62 MB / 0.7325 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1031 * Number of variables: 1031 Notification: Performance of Generate backend data structure: time 0.01942/1.017, allocations: 5.033 MB / 0.9363 GB, free: 26.4 MB / 0.7325 GB Notification: Performance of prepare preOptimizeDAE: time 5.042e-05/1.017, allocations: 11.09 kB / 0.9364 GB, free: 26.4 MB / 0.7325 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003599/1.021, allocations: 0.5816 MB / 0.9369 GB, free: 26.12 MB / 0.7325 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.008256/1.029, allocations: 3.008 MB / 0.9399 GB, free: 25.48 MB / 0.7325 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003238/1.029, allocations: 287.1 kB / 0.9401 GB, free: 25.48 MB / 0.7325 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001792/1.031, allocations: 387.8 kB / 0.9405 GB, free: 25.47 MB / 0.7325 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01122/1.042, allocations: 5.962 MB / 0.9463 GB, free: 24.79 MB / 0.7325 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.367e-05/1.042, allocations: 17.06 kB / 0.9463 GB, free: 24.78 MB / 0.7325 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004918/1.043, allocations: 165.2 kB / 0.9465 GB, free: 24.78 MB / 0.7325 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005213/1.043, allocations: 456 kB / 0.9469 GB, free: 24.77 MB / 0.7325 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008554/1.052, allocations: 5.314 MB / 0.9521 GB, free: 24.73 MB / 0.7325 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 0.0416/1.094, allocations: 24.49 MB / 0.976 GB, free: 10.11 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008935/1.103, allocations: 4.487 MB / 0.9804 GB, free: 9.379 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.02887/1.131, allocations: 12.54 MB / 0.9927 GB, free: 17.91 MB / 0.7481 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004351/1.136, allocations: 2.21 MB / 0.9948 GB, free: 17.27 MB / 0.7481 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.003645/1.14, allocations: 0.5658 MB / 0.9954 GB, free: 17 MB / 0.7481 GB Notification: Performance of pre-optimization done (n=310): time 1.564e-05/1.14, allocations: 4 kB / 0.9954 GB, free: 17 MB / 0.7481 GB Notification: Performance of matching and sorting (n=334): time 0.03104/1.171, allocations: 13.19 MB / 1.008 GB, free: 9.422 MB / 0.7481 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.899e-05/1.171, allocations: 115.7 kB / 1.008 GB, free: 9.289 MB / 0.7481 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006175/1.177, allocations: 3.148 MB / 1.011 GB, free: 6.949 MB / 0.7481 GB Notification: Performance of collectPreVariables (initialization): time 0.0007712/1.178, allocations: 94.7 kB / 1.012 GB, free: 6.898 MB / 0.7481 GB Notification: Performance of collectInitialEqns (initialization): time 0.001887/1.18, allocations: 2.058 MB / 1.014 GB, free: 5.633 MB / 0.7481 GB Notification: Performance of collectInitialBindings (initialization): time 0.001401/1.181, allocations: 1.157 MB / 1.015 GB, free: 4.641 MB / 0.7481 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003739/1.181, allocations: 81.88 kB / 1.015 GB, free: 4.625 MB / 0.7481 GB Notification: Performance of setup shared object (initialization): time 0.0003018/1.182, allocations: 470.5 kB / 1.015 GB, free: 4.219 MB / 0.7481 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003275/1.185, allocations: 1.918 MB / 1.017 GB, free: 2.934 MB / 0.7481 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004338/1.189, allocations: 2.945 MB / 1.02 GB, free: 348 kB / 0.7481 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.00413/1.194, allocations: 2.434 MB / 1.022 GB, free: 14.8 MB / 0.7637 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.432e-05/1.194, allocations: 8 kB / 1.022 GB, free: 14.8 MB / 0.7637 GB Notification: Performance of matching and sorting (n=512) (initialization): time 0.009552/1.203, allocations: 5.541 MB / 1.028 GB, free: 10.98 MB / 0.7637 GB Notification: Performance of prepare postOptimizeDAE: time 0.004545/1.208, allocations: 12.17 MB / 1.04 GB, free: 13.99 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.811e-05/1.208, allocations: 35.98 kB / 1.04 GB, free: 13.95 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 7.301e-05/1.208, allocations: 52 kB / 1.04 GB, free: 13.9 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0322/1.24, allocations: 4.149 MB / 1.044 GB, free: 9.848 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002868/1.243, allocations: 3.969 MB / 1.048 GB, free: 5.914 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005662/1.249, allocations: 377.2 kB / 1.048 GB, free: 5.609 MB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001289/1.25, allocations: 198.5 kB / 1.048 GB, free: 5.449 MB / 0.7794 GB Notification: Performance of prepare postOptimizeDAE: time 1.28e-05/1.25, allocations: 4 kB / 1.048 GB, free: 5.445 MB / 0.7794 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01084/1.261, allocations: 5.038 MB / 1.053 GB, free: 2.145 MB / 0.7794 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.459e-05/1.261, allocations: 28 kB / 1.053 GB, free: 2.117 MB / 0.7794 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.661e-05/1.261, allocations: 52 kB / 1.053 GB, free: 2.066 MB / 0.7794 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006423/1.268, allocations: 1.353 MB / 1.055 GB, free: 0.8086 MB / 0.7794 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0001103/1.268, allocations: 64.36 kB / 1.055 GB, free: 0.7578 MB / 0.7794 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00534/1.273, allocations: 364.2 kB / 1.055 GB, free: 476 kB / 0.7794 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007602/1.274, allocations: 194.4 kB / 1.055 GB, free: 316 kB / 0.7794 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 125 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,$PRE.DataReader.nextTimeEvent,DataReader.nextTimeEvent,$PRE.DataReader.nextTimeEventScaled,DataReader.nextTimeEventScaled,lessThreshold.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (512): * Single equations (assignments): 506 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 6 * 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: 6 {1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.003578/1.277, allocations: 1.241 MB / 1.056 GB, free: 15.51 MB / 0.795 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001307/1.279, allocations: 403 kB / 1.057 GB, free: 15.11 MB / 0.795 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01033/1.289, allocations: 5.38 MB / 1.062 GB, free: 11.05 MB / 0.795 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.211e-05/1.289, allocations: 47.94 kB / 1.062 GB, free: 11 MB / 0.795 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.623e-05/1.289, allocations: 4 kB / 1.062 GB, free: 11 MB / 0.795 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.006659/1.296, allocations: 4.248 MB / 1.066 GB, free: 6.688 MB / 0.795 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02534/1.321, allocations: 11.94 MB / 1.078 GB, free: 10.67 MB / 0.8106 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.024e-05/1.321, allocations: 16.03 kB / 1.078 GB, free: 10.66 MB / 0.8106 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0302/1.351, allocations: 3.737 MB / 1.081 GB, free: 6.957 MB / 0.8106 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.446e-05/1.352, allocations: 35.75 kB / 1.082 GB, free: 6.926 MB / 0.8106 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0009987/1.353, allocations: 119 kB / 1.082 GB, free: 6.812 MB / 0.8106 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002536/1.355, allocations: 3.865 MB / 1.085 GB, free: 2.82 MB / 0.8106 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.361e-05/1.355, allocations: 15.56 kB / 1.085 GB, free: 2.809 MB / 0.8106 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01566/1.371, allocations: 9.361 MB / 1.095 GB, free: 8.926 MB / 0.8262 GB Notification: Performance of postOpt removeConstants (simulation): time 0.004516/1.375, allocations: 0.9993 MB / 1.096 GB, free: 7.902 MB / 0.8262 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001888/1.377, allocations: 95.97 kB / 1.096 GB, free: 7.809 MB / 0.8262 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004872/1.382, allocations: 283.7 kB / 1.096 GB, free: 7.535 MB / 0.8262 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007016/1.383, allocations: 271.6 kB / 1.096 GB, free: 7.277 MB / 0.8262 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0006835/1.384, allocations: 171.9 kB / 1.096 GB, free: 7.109 MB / 0.8262 GB Notification: Performance of sorting global known variables: time 0.004538/1.388, allocations: 2.072 MB / 1.098 GB, free: 5.055 MB / 0.8262 GB Notification: Performance of sort global known variables: time 3.11e-07/1.388, allocations: 2.734 kB / 1.098 GB, free: 5.055 MB / 0.8262 GB Notification: Performance of remove unused functions: time 0.01305/1.401, allocations: 2.476 MB / 1.101 GB, free: 2.578 MB / 0.8262 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 56 * Number of states: 17 (pip0.mediums[1].T,pip0.mediums[2].T,pip1.mediums[1].T,pip1.mediums[2].T,pip2.mediums[1].T,pip2.mediums[2].T,pip3.mediums[1].T,pip3.mediums[2].T,pip4.mediums[1].T,pip4.mediums[2].T,pip5.mediums[1].T,pip5.mediums[2].T,senTem_p2.T,senTem_p3.T,senTemIn_p2.T,senTem_p1.T,senTem_p4.T) * Number of discrete variables: 4 ($whenCondition1,DataReader.nextTimeEvent,DataReader.nextTimeEventScaled,lessThreshold.y) * Number of discrete states: 2 (DataReader.nextTimeEvent,DataReader.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (386): * Single equations (assignments): 362 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 16 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 6 * 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: 6 {1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.005018/1.406, allocations: 1.432 MB / 1.102 GB, free: 1.488 MB / 0.8262 GB Notification: Performance of simCode: created initialization part: time 0.05789/1.464, allocations: 11.46 MB / 1.113 GB, free: 6.246 MB / 0.8419 GB Notification: Performance of simCode: created event and clocks part: time 2.25e-05/1.464, allocations: 5 kB / 1.113 GB, free: 6.242 MB / 0.8419 GB Notification: Performance of simCode: created simulation system equations: time 0.0439/1.508, allocations: 6.39 MB / 1.12 GB, free: 15.95 MB / 0.8575 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01182/1.52, allocations: 1.569 MB / 1.121 GB, free: 14.4 MB / 0.8575 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02391/1.544, allocations: 12.23 MB / 1.133 GB, free: 2.047 MB / 0.8575 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004151/1.548, allocations: 3.141 MB / 1.136 GB, free: 14.87 MB / 0.8731 GB Notification: Performance of simCode: alias equations: time 0.0109/1.559, allocations: 2.548 MB / 1.139 GB, free: 12.41 MB / 0.8731 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002133/1.561, allocations: 383.3 kB / 1.139 GB, free: 12.04 MB / 0.8731 GB Notification: Performance of SimCode: time 1.122e-06/1.561, allocations: 4 kB / 1.139 GB, free: 12.04 MB / 0.8731 GB Notification: Performance of Templates: time 0.1403/1.702, allocations: 81.36 MB / 1.218 GB, free: 11.89 MB / 0.9512 GB make -j1 -f Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.makefile Environment - environmentSimulation: (rm -f Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.pipe ; mkfifo Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.pipe >> ../files/Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.sim & ./Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_8_Buildings.Fluid.FixedResistances.Validation.PlugFlowPipes.MSLAIT2Nodes.pipe 2>&1) Environment - environmentSimulation: