Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.Movers.Validation.PowerSimplified.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: "" <> buildModelFMU(Buildings.Fluid.Movers.Validation.PowerSimplified,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Validation_PowerSimplified",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Movers.Validation.PowerSimplified,fileNamePrefix="Buildings_8_Buildings_Fluid_Movers_Validation_PowerSimplified",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 0.0009385/0.0009385, allocations: 100.2 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 0.0009286/0.0009287, 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 1.291/1.291, 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 1.676/1.676, allocations: 292.6 MB / 0.5497 GB, free: 14.62 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 0.0005171/0.0005175, allocations: 20.81 kB / 0.6737 GB, free: 26.11 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2296/0.2301, allocations: 116.3 MB / 0.7872 GB, free: 11.9 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.PowerSimplified): time 0.06007/0.2902, allocations: 62.56 MB / 0.8483 GB, free: 13.18 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.03587/0.3261, allocations: 23.35 MB / 0.8711 GB, free: 5.789 MB / 0.6856 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004351/0.3305, allocations: 99.31 kB / 0.8712 GB, free: 5.691 MB / 0.6856 GB Notification: Performance of NFTyping.typeComponents: time 0.006306/0.3369, allocations: 1.423 MB / 0.8726 GB, free: 4.262 MB / 0.6856 GB Notification: Performance of NFTyping.typeBindings: time 0.01546/0.3524, allocations: 3.486 MB / 0.876 GB, free: 0.7695 MB / 0.6856 GB Notification: Performance of NFTyping.typeClassSections: time 0.01273/0.3651, allocations: 4.087 MB / 0.88 GB, free: 12.73 MB / 0.7012 GB Notification: Performance of NFFlatten.flatten: time 0.01015/0.3753, allocations: 4.859 MB / 0.8847 GB, free: 7.863 MB / 0.7012 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004435/0.3798, allocations: 2.153 MB / 0.8868 GB, free: 5.668 MB / 0.7012 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00587/0.3857, allocations: 2.207 MB / 0.889 GB, free: 3.453 MB / 0.7012 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003653/0.3894, allocations: 1.54 MB / 0.8905 GB, free: 1.906 MB / 0.7012 GB Notification: Performance of NFPackage.collectConstants: time 0.001183/0.3906, allocations: 120 kB / 0.8906 GB, free: 1.789 MB / 0.7012 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005296/0.3959, allocations: 1.354 MB / 0.8919 GB, free: 444 kB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.00187/0.3978, allocations: 0.9268 MB / 0.8928 GB, free: 15.5 MB / 0.7169 GB Notification: Performance of NFVerifyModel.verify: time 0.002107/0.3999, allocations: 0.7691 MB / 0.8936 GB, free: 14.73 MB / 0.7169 GB Notification: Performance of NFConvertDAE.convert: time 0.007601/0.4075, allocations: 4.372 MB / 0.8979 GB, free: 10.34 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 4.739e-06/0.4076, allocations: 0 / 0.8979 GB, free: 10.34 MB / 0.7169 GB Notification: Performance of FrontEnd: time 3.587e-06/0.4076, allocations: 0 / 0.8979 GB, free: 10.34 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 0.0002305/0.4078, allocations: 4 kB / 0.8979 GB, free: 10.34 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 440 * Number of variables: 440 Notification: Performance of Generate backend data structure: time 0.009602/0.4174, allocations: 3.772 MB / 0.9016 GB, free: 6.5 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 5.183e-05/0.4175, allocations: 12.03 kB / 0.9016 GB, free: 6.488 MB / 0.7169 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008222/0.4183, allocations: 253.1 kB / 0.9018 GB, free: 6.23 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003517/0.4219, allocations: 0.6588 MB / 0.9024 GB, free: 5.566 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.009632/0.4315, allocations: 4.275 MB / 0.9066 GB, free: 1.234 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001571/0.4317, allocations: 155.9 kB / 0.9068 GB, free: 1.082 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003772/0.4321, allocations: 192 kB / 0.907 GB, free: 0.8945 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.494/0.9261, allocations: 2.152 MB / 0.9091 GB, free: 29.07 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.797e-05/0.9262, allocations: 1.688 kB / 0.9091 GB, free: 29.07 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002233/0.9264, allocations: 71.98 kB / 0.9091 GB, free: 29.07 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.491e-05/0.9265, allocations: 49.7 kB / 0.9092 GB, free: 29.07 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004113/0.9306, allocations: 1.622 MB / 0.9108 GB, free: 29.05 MB / 0.7169 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 0.01431/0.945, allocations: 9.851 MB / 0.9204 GB, free: 25.12 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002891/0.9479, allocations: 1.224 MB / 0.9216 GB, free: 25.09 MB / 0.7169 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 evalFunc (simulation): time 0.005173/0.9531, allocations: 3.491 MB / 0.925 GB, free: 23.38 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.791e-05/0.9531, allocations: 51.27 kB / 0.925 GB, free: 23.34 MB / 0.7169 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0008476/0.954, allocations: 197.5 kB / 0.9252 GB, free: 23.3 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=85): time 3.026e-06/0.954, allocations: 0 / 0.9252 GB, free: 23.3 MB / 0.7169 GB Notification: Performance of matching and sorting (n=91): time 0.01003/0.964, allocations: 3.977 MB / 0.9291 GB, free: 22.3 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.662e-05/0.9641, allocations: 61.22 kB / 0.9292 GB, free: 22.23 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007087/0.9712, allocations: 3.979 MB / 0.933 GB, free: 21.97 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 0.0002717/0.9715, allocations: 54.83 kB / 0.9331 GB, free: 21.94 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.001277/0.9728, allocations: 1.597 MB / 0.9347 GB, free: 21.53 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004002/0.9732, allocations: 325.3 kB / 0.935 GB, free: 21.33 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001193/0.9733, allocations: 31.06 kB / 0.935 GB, free: 21.32 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 9.83e-05/0.9734, allocations: 364 kB / 0.9353 GB, free: 21.02 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001463/0.9749, allocations: 0.6277 MB / 0.936 GB, free: 21.01 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001741/0.9767, allocations: 1.301 MB / 0.9372 GB, free: 20.19 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001621/0.9783, allocations: 0.7882 MB / 0.938 GB, free: 20.15 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.245e-05/0.9783, allocations: 5.625 kB / 0.938 GB, free: 20.15 MB / 0.7169 GB Notification: Performance of matching and sorting (n=193) (initialization): time 0.00498/0.9833, allocations: 2.307 MB / 0.9403 GB, free: 19.89 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.00159/0.9849, allocations: 7.989 MB / 0.9481 GB, free: 11.52 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.281e-05/0.985, allocations: 20.84 kB / 0.9481 GB, free: 11.52 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008059/0.9858, allocations: 250.6 kB / 0.9483 GB, free: 11.48 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001653/0.9874, allocations: 397.9 kB / 0.9487 GB, free: 11.48 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004689/0.9921, allocations: 5.824 MB / 0.9544 GB, free: 22.61 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002803/0.995, allocations: 176 kB / 0.9546 GB, free: 22.59 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002316/0.9952, allocations: 112 kB / 0.9547 GB, free: 22.59 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 8.125e-06/0.9952, allocations: 3.844 kB / 0.9547 GB, free: 22.59 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003861/0.9991, allocations: 2.085 MB / 0.9567 GB, free: 22.53 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.132e-05/0.9992, allocations: 18.19 kB / 0.9567 GB, free: 22.53 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001141/1, allocations: 478.1 kB / 0.9572 GB, free: 22.48 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001088/1.001, allocations: 327.8 kB / 0.9575 GB, free: 22.48 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009421/1.011, allocations: 9.023 MB / 0.9663 GB, free: 16.89 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002736/1.014, allocations: 147.5 kB / 0.9664 GB, free: 16.87 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002254/1.014, allocations: 97.19 kB / 0.9665 GB, free: 16.87 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 81 * 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 (172): * Single equations (assignments): 164 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 1 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 1 {1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 4 {1 2,1 2,1 2,1 4} Notification: Performance of prepare postOptimizeDAE: time 0.001842/1.016, allocations: 0.9039 MB / 0.9674 GB, free: 16.67 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005785/1.016, allocations: 321 kB / 0.9677 GB, free: 16.5 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004287/1.021, allocations: 1.954 MB / 0.9696 GB, free: 16.34 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.933e-05/1.021, allocations: 19.45 kB / 0.9696 GB, free: 16.34 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.439e-06/1.021, allocations: 0 / 0.9696 GB, free: 16.34 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002871/1.024, allocations: 1.652 MB / 0.9713 GB, free: 15.86 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007968/1.031, allocations: 4.268 MB / 0.9754 GB, free: 15.24 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.154e-06/1.032, allocations: 3.141 kB / 0.9754 GB, free: 15.24 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001058/1.033, allocations: 247.6 kB / 0.9757 GB, free: 15.24 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003274/1.033, allocations: 141.2 kB / 0.9758 GB, free: 15.22 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.289e-05/1.033, allocations: 36.2 kB / 0.9758 GB, free: 15.22 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0008003/1.034, allocations: 1.358 MB / 0.9772 GB, free: 14.11 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.685e-06/1.034, allocations: 3.938 kB / 0.9772 GB, free: 14.1 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004932/1.039, allocations: 2.695 MB / 0.9798 GB, free: 13.58 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001808/1.041, allocations: 0.5791 MB / 0.9804 GB, free: 13.31 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004389/1.041, allocations: 25.59 kB / 0.9804 GB, free: 13.31 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001571/1.043, allocations: 152.2 kB / 0.9805 GB, free: 13.29 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001305/1.043, allocations: 69.31 kB / 0.9806 GB, free: 13.29 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001048/1.043, allocations: 62.03 kB / 0.9807 GB, free: 13.28 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.004038/1.047, allocations: 2.79 MB / 0.9834 GB, free: 13.14 MB / 0.7325 GB Notification: Performance of sort global known variables: time 5.61e-07/1.047, allocations: 0 / 0.9834 GB, free: 13.14 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.005287/1.052, allocations: 1.435 MB / 0.9848 GB, free: 13.12 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 3 (pump_Nrpm.vol.dynBal.U,pump_dp.vol.dynBal.U,pump_m_flow.vol.dynBal.U) * 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 (104): * Single equations (assignments): 94 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 8 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 1 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 1 {1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 5} Notification: Performance of Backend phase and start with SimCode phase: time 0.006508/1.059, allocations: 4.084 MB / 0.9888 GB, free: 11.78 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.005979/1.065, allocations: 3.424 MB / 0.9921 GB, free: 10.95 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 6.202e-06/1.065, allocations: 0 / 0.9921 GB, free: 10.95 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.001516/1.066, allocations: 0.7009 MB / 0.9928 GB, free: 10.94 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.007422/1.074, allocations: 1.723 MB / 0.9945 GB, free: 10.74 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01804/1.092, allocations: 20.71 MB / 1.015 GB, free: 9.594 MB / 0.7481 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001821/1.094, allocations: 2.248 MB / 1.017 GB, free: 8.129 MB / 0.7481 GB Notification: Performance of simCode: alias equations: time 0.003616/1.097, allocations: 0.7961 MB / 1.018 GB, free: 7.332 MB / 0.7481 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001798/1.099, allocations: 1.453 MB / 1.019 GB, free: 6.984 MB / 0.7481 GB Notification: Performance of SimCode: time 8.81e-07/1.099, allocations: 0 / 1.019 GB, free: 6.984 MB / 0.7481 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 1.572/2.671, allocations: 101.4 MB / 1.118 GB, free: 3.164 MB / 0.8419 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0005102/2.671, allocations: 241 kB / 1.118 GB, free: 2.836 MB / 0.8419 GB Notification: Performance of buildModelFMU: Generate platform static: time 4.717/7.389, allocations: 0 / 1.118 GB, free: 2.836 MB / 0.8419 GB (rm -f Buildings_8_Buildings.Fluid.Movers.Validation.PowerSimplified.pipe ; mkfifo Buildings_8_Buildings.Fluid.Movers.Validation.PowerSimplified.pipe ; head -c 1048576 < Buildings_8_Buildings.Fluid.Movers.Validation.PowerSimplified.pipe >> ../files/Buildings_8_Buildings.Fluid.Movers.Validation.PowerSimplified.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Fluid_Movers_Validation_PowerSimplified_fmu --startTime=0 --stopTime=200 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Fluid_Movers_Validation_PowerSimplified.fmu > Buildings_8_Buildings.Fluid.Movers.Validation.PowerSimplified.pipe 2>&1) Environment - environmentSimulation: