Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.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/IDEAS 3.0.0-master/package.mo", uses=false) Using package IDEAS with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-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(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelDp",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp,fileNamePrefix="IDEAS_dev_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelDp",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 0.00109/0.00109, allocations: 91.38 kB / 15.06 MB, free: 1.094 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008932/0.0008932, allocations: 172.7 kB / 15.95 MB, free: 204 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.321/1.321, allocations: 223.3 MB / 240 MB, free: 5.449 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IDEAS 3.0.0-master/package.mo): time 0.9211/0.9211, allocations: 135.3 MB / 426.3 MB, free: 14.35 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0002998/0.0002999, allocations: 11.94 kB / 0.5071 GB, free: 5.168 MB / 414.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1452/0.1456, allocations: 82.3 MB / 0.5875 GB, free: 3.035 MB / 494.1 MB Notification: Performance of NFInst.instantiate(IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp): time 0.397/0.5426, allocations: 146.7 MB / 0.7307 GB, free: 3.273 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.005133/0.5478, allocations: 3.377 MB / 0.734 GB, free: 0.9023 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003224/0.5481, allocations: 9.188 kB / 0.7341 GB, free: 0.8984 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.0004921/0.5486, allocations: 110.4 kB / 0.7342 GB, free: 0.8359 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.001405/0.5501, allocations: 399.3 kB / 0.7345 GB, free: 0.6211 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.001446/0.5515, allocations: 375.2 kB / 0.7349 GB, free: 468 kB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.003433/0.555, allocations: 3.023 MB / 0.7379 GB, free: 15.3 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002792/0.5578, allocations: 2.147 MB / 0.7399 GB, free: 14.48 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001775/0.5596, allocations: 0.8699 MB / 0.7408 GB, free: 14.07 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008131/0.5604, allocations: 0.7063 MB / 0.7415 GB, free: 13.68 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 7.783e-05/0.5605, allocations: 33.91 kB / 0.7415 GB, free: 13.68 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001178/0.5617, allocations: 0.5546 MB / 0.7421 GB, free: 13.39 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0002696/0.5619, allocations: 280.5 kB / 0.7423 GB, free: 13.2 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0002507/0.5622, allocations: 235.1 kB / 0.7426 GB, free: 13.07 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.001037/0.5632, allocations: 1.044 MB / 0.7436 GB, free: 12.46 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 3.987e-06/0.5632, allocations: 0 / 0.7436 GB, free: 12.46 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.533e-06/0.5633, allocations: 0 / 0.7436 GB, free: 12.46 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 1.137e-05/0.5633, allocations: 0 / 0.7436 GB, free: 12.46 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 125 * Number of variables: 125 Notification: Performance of Generate backend data structure: time 0.001911/0.5652, allocations: 1.332 MB / 0.7449 GB, free: 11.43 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 3.644e-05/0.5652, allocations: 8.719 kB / 0.7449 GB, free: 11.43 MB / 0.5606 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001058/0.5653, allocations: 96.08 kB / 0.745 GB, free: 11.35 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0006551/0.566, allocations: 191.5 kB / 0.7452 GB, free: 11.26 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001222/0.5672, allocations: 0.8035 MB / 0.7459 GB, free: 10.68 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.793e-05/0.5673, allocations: 46.22 kB / 0.746 GB, free: 10.64 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 8.008e-05/0.5674, allocations: 56 kB / 0.746 GB, free: 10.59 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001187/0.5686, allocations: 0.8288 MB / 0.7468 GB, free: 9.688 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.433e-05/0.5686, allocations: 0 / 0.7468 GB, free: 9.688 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.022e-05/0.5687, allocations: 28 kB / 0.7469 GB, free: 9.66 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.215e-05/0.5687, allocations: 12 kB / 0.7469 GB, free: 9.648 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009077/0.5696, allocations: 0.5696 MB / 0.7474 GB, free: 9.074 MB / 0.5606 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 0.003797/0.5734, allocations: 4.258 MB / 0.7516 GB, free: 4.551 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007195/0.5741, allocations: 450.2 kB / 0.752 GB, free: 4.102 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004782/0.5746, allocations: 358.3 kB / 0.7524 GB, free: 3.75 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002775/0.5749, allocations: 190.2 kB / 0.7526 GB, free: 3.527 MB / 0.5606 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.000515/0.5754, allocations: 335.5 kB / 0.7529 GB, free: 3.18 MB / 0.5606 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0002098/0.5757, allocations: 31.69 kB / 0.7529 GB, free: 3.148 MB / 0.5606 GB Notification: Performance of pre-optimization done (n=33): time 1.813e-06/0.5757, allocations: 3.938 kB / 0.7529 GB, free: 3.145 MB / 0.5606 GB Notification: Performance of matching and sorting (n=33): time 0.001307/0.577, allocations: 0.7135 MB / 0.7536 GB, free: 2.426 MB / 0.5606 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.897e-05/0.577, allocations: 85.11 kB / 0.7537 GB, free: 2.324 MB / 0.5606 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001276/0.5783, allocations: 1.151 MB / 0.7548 GB, free: 1.156 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 4.305e-05/0.5784, allocations: 37.7 kB / 0.7548 GB, free: 1.113 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003887/0.5788, allocations: 488.4 kB / 0.7553 GB, free: 0.6328 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 9.076e-05/0.5789, allocations: 114.4 kB / 0.7554 GB, free: 0.5195 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.68e-05/0.5789, allocations: 12 kB / 0.7554 GB, free: 0.5078 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 0.0001392/0.5791, allocations: 326 kB / 0.7557 GB, free: 188 kB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003594/0.5794, allocations: 208.9 kB / 0.7559 GB, free: 15.98 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006082/0.58, allocations: 0.5187 MB / 0.7564 GB, free: 15.33 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004666/0.5805, allocations: 310.8 kB / 0.7567 GB, free: 15.02 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.95e-06/0.5805, allocations: 4 kB / 0.7567 GB, free: 15.02 MB / 0.5762 GB Notification: Performance of matching and sorting (n=56) (initialization): time 0.001153/0.5817, allocations: 0.7245 MB / 0.7575 GB, free: 14.28 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 0.0002241/0.5819, allocations: 274.8 kB / 0.7577 GB, free: 13.93 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.377e-05/0.582, allocations: 8 kB / 0.7577 GB, free: 13.92 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.182e-05/0.582, allocations: 11.94 kB / 0.7577 GB, free: 13.91 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001946/0.5839, allocations: 397.5 kB / 0.7581 GB, free: 13.52 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003736/0.5877, allocations: 6.091 MB / 0.7641 GB, free: 7.199 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008906/0.5886, allocations: 87.84 kB / 0.7641 GB, free: 7.113 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.011e-05/0.5887, allocations: 27.98 kB / 0.7642 GB, free: 7.086 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.398e-05/0.5887, allocations: 6.031 kB / 0.7642 GB, free: 7.082 MB / 0.5762 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0009802/0.5897, allocations: 0.5838 MB / 0.7647 GB, free: 6.492 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.614e-06/0.5897, allocations: 12.11 kB / 0.7648 GB, free: 6.48 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.107e-05/0.5897, allocations: 15.98 kB / 0.7648 GB, free: 6.465 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005561/0.5903, allocations: 155.8 kB / 0.7649 GB, free: 6.312 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.026e-05/0.5903, allocations: 11.95 kB / 0.7649 GB, free: 6.301 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006598/0.591, allocations: 87.75 kB / 0.765 GB, free: 6.215 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.718e-05/0.591, allocations: 20 kB / 0.765 GB, free: 6.195 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 ($whenCondition1,$PRE.pulse_p.T_start,pulse_p.T_start,$PRE.pulse_p.count,pulse_p.count) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (55): * Single equations (assignments): 44 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 10 * 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: 10 {1,1,1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0005491/0.5916, allocations: 480.5 kB / 0.7655 GB, free: 5.715 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001248/0.5917, allocations: 106.7 kB / 0.7656 GB, free: 5.609 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009529/0.5927, allocations: 0.5466 MB / 0.7661 GB, free: 5.055 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.512e-06/0.5927, allocations: 11.94 kB / 0.7661 GB, free: 5.043 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.153e-06/0.5927, allocations: 3.953 kB / 0.7661 GB, free: 5.039 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.452e-06/0.5927, allocations: 3.984 kB / 0.7662 GB, free: 5.035 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002107/0.5948, allocations: 1.497 MB / 0.7676 GB, free: 3.461 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.811e-06/0.5948, allocations: 8 kB / 0.7676 GB, free: 3.453 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006549/0.5955, allocations: 164 kB / 0.7678 GB, free: 3.293 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.775e-06/0.5955, allocations: 4 kB / 0.7678 GB, free: 3.289 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.475e-05/0.5956, allocations: 8 kB / 0.7678 GB, free: 3.281 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003032/0.5986, allocations: 6.017 MB / 0.7737 GB, free: 13.03 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.388e-06/0.5986, allocations: 3.938 kB / 0.7737 GB, free: 13.03 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0009085/0.5995, allocations: 0.6688 MB / 0.7743 GB, free: 12.32 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003801/0.5999, allocations: 227.8 kB / 0.7745 GB, free: 12.08 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001489/0.6001, allocations: 15.98 kB / 0.7746 GB, free: 12.07 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0006157/0.6007, allocations: 71.72 kB / 0.7746 GB, free: 12 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.264e-05/0.6008, allocations: 27.91 kB / 0.7746 GB, free: 11.97 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.834e-05/0.6008, allocations: 19.98 kB / 0.7747 GB, free: 11.95 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.001121/0.602, allocations: 0.812 MB / 0.7755 GB, free: 11.13 MB / 0.5919 GB Notification: Performance of sort global known variables: time 1.2e-07/0.602, allocations: 0 / 0.7755 GB, free: 11.13 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.001201/0.6032, allocations: 431.4 kB / 0.7759 GB, free: 10.71 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (33): * Single equations (assignments): 21 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (linear and non-linear blocks): 10 * 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: 10 {1,1,1,1,1,1,1,1,1,1} * Without analytic Jacobian: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.001448/0.6046, allocations: 1.3 MB / 0.7771 GB, free: 9.367 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.00317/0.6078, allocations: 1.185 MB / 0.7783 GB, free: 8.16 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 6.272e-06/0.6078, allocations: 0 / 0.7783 GB, free: 8.16 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.0008/0.6086, allocations: 328 kB / 0.7786 GB, free: 7.84 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003093/0.6118, allocations: 0.6342 MB / 0.7792 GB, free: 7.223 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01215/0.6239, allocations: 6.623 MB / 0.7857 GB, free: 308 kB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000781/0.6247, allocations: 1.178 MB / 0.7868 GB, free: 15.09 MB / 0.6075 GB Notification: Performance of simCode: alias equations: time 0.001147/0.6259, allocations: 400 kB / 0.7872 GB, free: 14.7 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004326/0.6263, allocations: 335.3 kB / 0.7876 GB, free: 14.37 MB / 0.6075 GB Notification: Performance of SimCode: time 8.31e-07/0.6263, allocations: 0 / 0.7876 GB, free: 14.37 MB / 0.6075 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05069/0.677, allocations: 29.46 MB / 0.8163 GB, free: 1.34 MB / 0.6231 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001908/0.6773, allocations: 259.6 kB / 0.8166 GB, free: 0.9961 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.331/3.008, allocations: 0 / 0.8166 GB, free: 0.9961 MB / 0.6231 GB (rm -f IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe ; mkfifo IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe ; head -c 1048576 < IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe >> ../files/IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_IDEAS_dev_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelDp_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IDEAS_dev_IDEAS_Fluid_Examples_Performance_PressureDrop_ParallelDp.fmu > IDEAS_dev_IDEAS.Fluid.Examples.Performance.PressureDrop.ParallelDp.pipe 2>&1) Environment - environmentSimulation: