Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo", uses=false) 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 3.0.0/package.mo", uses=false) Using package Buildings with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/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) Using package Modelica_StateGraph2 with version 2.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo) Running command: translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_dp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp") translateModel(Buildings.Fluid.Movers.Validation.FlowControlled_dp,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp") [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:257:38-257:110:writable] Warning: The file was not encoded in UTF-8: "

An important practical aspect of state machines is the abilit...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:761:36-761:108:writable] Warning: The file was not encoded in UTF-8: "

The Modelica_StateGraph2 library is described in detail in (O...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:1435:36-1435:108:writable] Warning: The file was not encoded in UTF-8: "

Main Authors:
SCode: time 0.2379/0.2386, allocations: 82.22 MB / 0.5935 GB, free: 5.984 MB / 446.1 MB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Validation.FlowControlled_dp): time 0.8745/1.113, allocations: 295.8 MB / 0.8823 GB, free: 10.6 MB / 0.6387 GB Notification: Performance of NFInst.instExpressions: time 0.03841/1.152, allocations: 21.15 MB / 0.903 GB, free: 5.41 MB / 0.6544 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005473/1.157, allocations: 79.5 kB / 0.9031 GB, free: 5.332 MB / 0.6544 GB Notification: Performance of NFTyping.typeComponents: time 0.005586/1.163, allocations: 0.9629 MB / 0.904 GB, free: 4.363 MB / 0.6544 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:734:36-735:54:writable] Warning: 'each' used when modifying non-array element m_flow. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/Fluid/Sources.mo:732:36-733:54:writable] Warning: 'each' used when modifying non-array element m_flow. Notification: Performance of NFTyping.typeBindings: time 0.01333/1.176, allocations: 3.065 MB / 0.907 GB, free: 1.285 MB / 0.6544 GB Notification: Performance of NFTyping.typeClassSections: time 0.007629/1.184, allocations: 2.05 MB / 0.909 GB, free: 15.26 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.01283/1.197, allocations: 6.977 MB / 0.9158 GB, free: 8.27 MB / 0.67 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004296/1.201, allocations: 1.571 MB / 0.9173 GB, free: 6.676 MB / 0.67 GB Notification: Performance of NFEvalConstants.evaluate: time 0.008707/1.21, allocations: 2.525 MB / 0.9198 GB, free: 4.141 MB / 0.67 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005041/1.215, allocations: 1.817 MB / 0.9216 GB, free: 2.316 MB / 0.67 GB Notification: Performance of NFPackage.collectConstants: time 0.0008629/1.216, allocations: 108 kB / 0.9217 GB, free: 2.211 MB / 0.67 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007782/1.224, allocations: 2.121 MB / 0.9238 GB, free: 88 kB / 0.67 GB Notification: Performance of NFScalarize.scalarize: time 0.001889/1.226, allocations: 0.767 MB / 0.9245 GB, free: 15.32 MB / 0.6856 GB Notification: Performance of NFVerifyModel.verify: time 0.001571/1.227, allocations: 0.52 MB / 0.925 GB, free: 14.79 MB / 0.6856 GB Notification: Performance of NFConvertDAE.convert: time 0.01007/1.237, allocations: 3.608 MB / 0.9285 GB, free: 11.17 MB / 0.6856 GB Notification: Performance of FrontEnd - DAE generated: time 1.06e-05/1.237, allocations: 3.938 kB / 0.9285 GB, free: 11.17 MB / 0.6856 GB Notification: Performance of FrontEnd: time 3.927e-06/1.237, allocations: 0 / 0.9285 GB, free: 11.17 MB / 0.6856 GB Notification: Performance of Transformations before backend: time 0.0002337/1.238, allocations: 4 kB / 0.9285 GB, free: 11.16 MB / 0.6856 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 356 * Number of variables: 356 Notification: Performance of Generate backend data structure: time 0.008794/1.246, allocations: 2.738 MB / 0.9312 GB, free: 8.352 MB / 0.6856 GB Notification: Performance of prepare preOptimizeDAE: time 5.298e-05/1.246, allocations: 8.031 kB / 0.9312 GB, free: 8.344 MB / 0.6856 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00558/1.252, allocations: 0.8515 MB / 0.9321 GB, free: 7.488 MB / 0.6856 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004723/1.257, allocations: 1.836 MB / 0.9338 GB, free: 5.578 MB / 0.6856 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004124/1.257, allocations: 178.7 kB / 0.934 GB, free: 5.402 MB / 0.6856 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003194/1.258, allocations: 152 kB / 0.9342 GB, free: 5.254 MB / 0.6856 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00475/1.262, allocations: 1.946 MB / 0.9361 GB, free: 3.254 MB / 0.6856 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.659e-05/1.262, allocations: 4 kB / 0.9361 GB, free: 3.25 MB / 0.6856 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001443/1.262, allocations: 56 kB / 0.9361 GB, free: 3.195 MB / 0.6856 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.296e-05/1.263, allocations: 62.66 kB / 0.9362 GB, free: 3.133 MB / 0.6856 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004382/1.267, allocations: 1.724 MB / 0.9379 GB, free: 1.402 MB / 0.6856 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 0.01278/1.28, allocations: 8.129 MB / 0.9458 GB, free: 8.652 MB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003264/1.283, allocations: 1.346 MB / 0.9471 GB, free: 7.266 MB / 0.7012 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001222/1.284, allocations: 0.5259 MB / 0.9476 GB, free: 6.738 MB / 0.7012 GB Notification: Performance of preOpt evalFunc (simulation): time 6.264e-05/1.284, allocations: 17.02 kB / 0.9476 GB, free: 6.719 MB / 0.7012 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.088e-05/1.284, allocations: 43.22 kB / 0.9477 GB, free: 6.668 MB / 0.7012 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001327/1.286, allocations: 142.9 kB / 0.9478 GB, free: 6.527 MB / 0.7012 GB Notification: Performance of pre-optimization done (n=74): time 3.396e-06/1.286, allocations: 0 / 0.9478 GB, free: 6.527 MB / 0.7012 GB Notification: Performance of matching and sorting (n=74): time 0.007228/1.293, allocations: 2.207 MB / 0.95 GB, free: 4.293 MB / 0.7012 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.985e-05/1.293, allocations: 60.06 kB / 0.95 GB, free: 4.219 MB / 0.7012 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002804/1.296, allocations: 1.856 MB / 0.9518 GB, free: 2.328 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 0.0002468/1.296, allocations: 45.7 kB / 0.9519 GB, free: 2.277 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009324/1.297, allocations: 1.003 MB / 0.9529 GB, free: 1.266 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002888/1.297, allocations: 264.2 kB / 0.9531 GB, free: 1.004 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 7.901e-05/1.297, allocations: 27.94 kB / 0.9531 GB, free: 0.9766 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001703/1.298, allocations: 353.8 kB / 0.9535 GB, free: 0.625 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001566/1.299, allocations: 0.6347 MB / 0.9541 GB, free: 15.98 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001791/1.301, allocations: 0.9867 MB / 0.9551 GB, free: 14.86 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001683/1.303, allocations: 0.8066 MB / 0.9559 GB, free: 14.04 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.001e-06/1.303, allocations: 0 / 0.9559 GB, free: 14.04 MB / 0.7169 GB Notification: Performance of matching and sorting (n=139) (initialization): time 0.005633/1.308, allocations: 2.147 MB / 0.958 GB, free: 11.87 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0003473/1.309, allocations: 393 kB / 0.9583 GB, free: 11.38 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.696e-05/1.309, allocations: 11.98 kB / 0.9583 GB, free: 11.37 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004646/1.309, allocations: 124.8 kB / 0.9585 GB, free: 11.24 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003458/1.313, allocations: 0.6906 MB / 0.9591 GB, free: 10.55 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008898/1.322, allocations: 5.49 MB / 0.9645 GB, free: 4.656 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002771/1.324, allocations: 231.6 kB / 0.9647 GB, free: 4.43 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000202/1.325, allocations: 71.95 kB / 0.9648 GB, free: 4.359 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.231e-05/1.325, allocations: 6.188 kB / 0.9648 GB, free: 4.355 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003247/1.328, allocations: 1.742 MB / 0.9665 GB, free: 2.602 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.745e-05/1.328, allocations: 15.97 kB / 0.9665 GB, free: 2.586 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001711/1.328, allocations: 44.84 kB / 0.9665 GB, free: 2.539 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009231/1.329, allocations: 235.9 kB / 0.9668 GB, free: 2.309 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001514/1.331, allocations: 1.51 MB / 0.9682 GB, free: 0.6562 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002184/1.333, allocations: 183.6 kB / 0.9684 GB, free: 488 kB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001224/1.333, allocations: 63.97 kB / 0.9685 GB, free: 424 kB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 29 * 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 (107): * Single equations (assignments): 102 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * 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: 2 {1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 4} Notification: Performance of prepare postOptimizeDAE: time 0.4274/1.76, allocations: 0.5793 MB / 0.9691 GB, free: 281 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007057/1.761, allocations: 198.3 kB / 0.9692 GB, free: 281 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004739/1.766, allocations: 1.483 MB / 0.9707 GB, free: 280.9 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.437e-05/1.766, allocations: 10.41 kB / 0.9707 GB, free: 280.9 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.484e-06/1.766, allocations: 4.594 kB / 0.9707 GB, free: 280.9 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003303/1.769, allocations: 1.314 MB / 0.972 GB, free: 280.7 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 postOpt removeSimpleEquations (simulation): time 0.007058/1.776, allocations: 3.212 MB / 0.9751 GB, free: 280.3 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.991e-06/1.776, allocations: 3.516 kB / 0.9751 GB, free: 280.3 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00303/1.779, allocations: 0.6229 MB / 0.9757 GB, free: 280.3 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003456/1.78, allocations: 120.6 kB / 0.9759 GB, free: 280.3 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.51e-05/1.78, allocations: 22.41 kB / 0.9759 GB, free: 280.3 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006656/1.786, allocations: 5.216 MB / 0.981 GB, free: 276.3 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.518e-06/1.786, allocations: 8.766 kB / 0.981 GB, free: 276.3 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006294/1.793, allocations: 2.16 MB / 0.9831 GB, free: 276 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002007/1.795, allocations: 381.3 kB / 0.9834 GB, free: 275.8 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003551/1.795, allocations: 20.09 kB / 0.9835 GB, free: 275.8 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001666/1.797, allocations: 190.4 kB / 0.9836 GB, free: 275.8 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003099/1.797, allocations: 48.91 kB / 0.9837 GB, free: 275.8 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001209/1.797, allocations: 33.58 kB / 0.9837 GB, free: 275.8 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.003164/1.8, allocations: 1.265 MB / 0.985 GB, free: 275.7 MB / 0.7169 GB Notification: Performance of sort global known variables: time 1.31e-07/1.801, allocations: 0 / 0.985 GB, free: 275.7 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.005766/1.806, allocations: 1.115 MB / 0.9861 GB, free: 275.6 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 3 (floMacDyn.vol.dynBal.U,floMacDyn.vol.dynBal.m,floMacDyn.vol.dynBal.mXi[1]) * 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 (72): * Single equations (assignments): 69 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * 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: 2 {1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {1 4} Notification: Performance of Backend phase and start with SimCode phase: time 0.001373/1.808, allocations: 394 kB / 0.9864 GB, free: 275.5 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.01043/1.818, allocations: 4.068 MB / 0.9904 GB, free: 274.3 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 8.987e-06/1.818, allocations: 1.094 kB / 0.9904 GB, free: 274.3 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.005819/1.824, allocations: 1.448 MB / 0.9918 GB, free: 274.1 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005855/1.83, allocations: 1.101 MB / 0.9929 GB, free: 273.9 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008035/1.838, allocations: 4.376 MB / 0.9972 GB, free: 271.5 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001045/1.839, allocations: 1.583 MB / 0.9987 GB, free: 270.7 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.00253/1.842, allocations: 440.1 kB / 0.9991 GB, free: 270.6 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004103/1.842, allocations: 148.1 kB / 0.9993 GB, free: 270.5 MB / 0.7169 GB Notification: Performance of SimCode: time 1.412e-06/1.842, allocations: 4 kB / 0.9993 GB, free: 270.5 MB / 0.7169 GB Notification: Performance of Templates: time 0.07494/1.917, allocations: 45.56 MB / 1.044 GB, free: 230.5 MB / 0.7169 GB make -j1 -f Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.makefile Environment - environmentSimulation: (rm -f Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe ; mkfifo Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe >> ../files/Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.sim & ./Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Fluid.Movers.Validation.FlowControlled_dp.pipe 2>&1) Environment - environmentSimulation: