Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Physiolibrary_Physiolibrary.Thermal.Examples.MuscleHeat.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/Physiolibrary 2.3.1/package.mo", uses=false) Using package Physiolibrary with version 2.3.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/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(Physiolibrary.Thermal.Examples.MuscleHeat,fileNamePrefix="Physiolibrary_Physiolibrary_Thermal_Examples_MuscleHeat",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Physiolibrary.Thermal.Examples.MuscleHeat,fileNamePrefix="Physiolibrary_Physiolibrary_Thermal_Examples_MuscleHeat",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 0.0008939/0.0008941, allocations: 84.38 kB / 15.06 MB, free: 1.09 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001123/0.001124, allocations: 168.7 kB / 15.95 MB, free: 204 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.537/1.537, allocations: 205.4 MB / 222.1 MB, free: 5.645 MB / 174.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/Chemical.mo:1238:16-1238:88:writable] Warning: The file was not encoded in UTF-8: "

[1] Matej?k M, Kulh?nek T, Matouaek S. Adair-Based Hemoglobin...". 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/Physiolibrary 2.3.1/Chemical.mo:1632:61-1632:133:writable] Warning: The file was not encoded in UTF-8: "

Before silumation in "Dymola 2014 FD01" please set e...". 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. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/package.mo): time 0.08673/0.08673, allocations: 15.4 MB / 285.8 MB, free: 5.883 MB / 238.1 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: Physiolibrary requested package Modelica of version 3.2.1. Modelica 3.2.3 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005169/0.0005169, allocations: 16 kB / 347.8 MB, free: 18.07 MB / 254.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.09263/0.09316, allocations: 51.4 MB / 399.2 MB, free: 14.55 MB / 302.1 MB Notification: Performance of NFInst.instantiate(Physiolibrary.Thermal.Examples.MuscleHeat): time 0.002497/0.0957, allocations: 1.852 MB / 401 MB, free: 12.69 MB / 302.1 MB Notification: Performance of NFInst.instExpressions: time 0.003005/0.09874, allocations: 1.825 MB / 402.9 MB, free: 10.85 MB / 302.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001377/0.0989, allocations: 7.938 kB / 402.9 MB, free: 10.84 MB / 302.1 MB Notification: Performance of NFTyping.typeComponents: time 9.581e-05/0.09901, allocations: 11.91 kB / 402.9 MB, free: 10.83 MB / 302.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/Types.mo:6137:6-6153:18:writable] Warning: Pure function ‘Physiolibrary.Thermal.Examples.MuscleHeat.muscle.Utilities.UnitConversions.findUnit‘ contains a call to impure function ‘Modelica.Utilities.Streams.print‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/Types.mo:5568:15-5660:17:writable] Warning: Pure function ‘Physiolibrary.Thermal.Examples.MuscleHeat.muscle.Utilities.readReal‘ contains a call to impure function ‘Physiolibrary.Thermal.Examples.MuscleHeat.muscle.Utilities.UnitConversions.findUnit‘. Notification: Performance of NFTyping.typeBindings: time 0.000768/0.09979, allocations: 187.2 kB / 403.1 MB, free: 10.65 MB / 302.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/Types.mo:5714:15-5735:18:writable] Warning: Pure function ‘Physiolibrary.Thermal.Examples.MuscleHeat.muscle.Utilities.writeReal‘ contains a call to impure function ‘Modelica.Utilities.Files.createDirectory‘. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Physiolibrary 2.3.1/Types.mo:5776:15-5812:24:writable] Warning: Pure function ‘Physiolibrary.Thermal.Examples.MuscleHeat.muscle.Utilities.writeComparison‘ contains a call to impure function ‘Modelica.Utilities.Files.createDirectory‘. Notification: Performance of NFTyping.typeClassSections: time 0.0006148/0.1004, allocations: 223.5 kB / 403.3 MB, free: 10.43 MB / 302.1 MB Notification: Performance of NFFlatten.flatten: time 0.0002278/0.1007, allocations: 135.2 kB / 403.4 MB, free: 10.3 MB / 302.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001174/0.1008, allocations: 25.11 kB / 403.4 MB, free: 10.27 MB / 302.1 MB Notification: Performance of NFEvalConstants.evaluate: time 7.036e-05/0.1009, allocations: 39.86 kB / 403.5 MB, free: 10.23 MB / 302.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0001022/0.101, allocations: 43.73 kB / 403.5 MB, free: 10.19 MB / 302.1 MB Notification: Performance of NFPackage.collectConstants: time 1.398e-05/0.101, allocations: 4 kB / 403.5 MB, free: 10.19 MB / 302.1 MB Notification: Performance of NFFlatten.collectFunctions: time 1.612e-05/0.101, allocations: 8 kB / 403.5 MB, free: 10.18 MB / 302.1 MB Notification: Performance of NFScalarize.scalarize: time 2.334e-05/0.101, allocations: 15.92 kB / 403.6 MB, free: 10.16 MB / 302.1 MB Notification: Performance of NFVerifyModel.verify: time 3.961e-05/0.1011, allocations: 49.64 kB / 403.6 MB, free: 10.11 MB / 302.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0001036/0.1012, allocations: 80.06 kB / 403.7 MB, free: 10.03 MB / 302.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.4e-06/0.1012, allocations: 0 / 403.7 MB, free: 10.03 MB / 302.1 MB Notification: Performance of FrontEnd: time 1.193e-06/0.1012, allocations: 0 / 403.7 MB, free: 10.03 MB / 302.1 MB Notification: Performance of Transformations before backend: time 4.408e-06/0.1012, allocations: 0 / 403.7 MB, free: 10.03 MB / 302.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 17 * Number of variables: 17 Notification: Performance of Generate backend data structure: time 0.000534/0.1018, allocations: 406.8 kB / 404.1 MB, free: 9.586 MB / 302.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.738e-05/0.1018, allocations: 12.03 kB / 404.1 MB, free: 9.574 MB / 302.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 3.903e-05/0.1019, allocations: 42.55 kB / 404.1 MB, free: 9.523 MB / 302.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 3.523e-05/0.1019, allocations: 15.81 kB / 404.1 MB, free: 9.508 MB / 302.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0002519/0.1022, allocations: 219.6 kB / 404.4 MB, free: 9.254 MB / 302.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.229e-05/0.1022, allocations: 4 kB / 404.4 MB, free: 9.25 MB / 302.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 2.916e-05/0.1022, allocations: 11.98 kB / 404.4 MB, free: 9.238 MB / 302.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001533/0.1024, allocations: 81.52 kB / 404.5 MB, free: 9.152 MB / 302.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.132e-05/0.1024, allocations: 0 / 404.5 MB, free: 9.152 MB / 302.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.181e-05/0.1024, allocations: 4 kB / 404.5 MB, free: 9.148 MB / 302.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.873e-06/0.1024, allocations: 4 kB / 404.5 MB, free: 9.145 MB / 302.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 8.396e-05/0.1025, allocations: 39.98 kB / 404.5 MB, free: 9.105 MB / 302.1 MB 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 0.0007087/0.1032, allocations: 0.4914 MB / 405 MB, free: 8.539 MB / 302.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0001223/0.1034, allocations: 66.45 kB / 405.1 MB, free: 8.465 MB / 302.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 4.247e-05/0.1034, allocations: 24.98 kB / 405.1 MB, free: 8.438 MB / 302.1 MB Notification: Performance of preOpt evalFunc (simulation): time 1.2e-05/0.1034, allocations: 0 / 405.1 MB, free: 8.438 MB / 302.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.149e-05/0.1035, allocations: 34.56 kB / 405.1 MB, free: 8.395 MB / 302.1 MB Notification: Performance of pre-optimization done (n=5): time 1.002e-06/0.1035, allocations: 0 / 405.1 MB, free: 8.395 MB / 302.1 MB Notification: Performance of matching and sorting (n=5): time 0.0002189/0.1037, allocations: 85.59 kB / 405.2 MB, free: 8.305 MB / 302.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.698e-05/0.1037, allocations: 55.41 kB / 405.3 MB, free: 8.238 MB / 302.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001509/0.1039, allocations: 170.3 kB / 405.4 MB, free: 8.062 MB / 302.1 MB Notification: Performance of collectPreVariables (initialization): time 1.719e-05/0.1039, allocations: 25.7 kB / 405.4 MB, free: 8.031 MB / 302.1 MB Notification: Performance of collectInitialEqns (initialization): time 6.635e-05/0.104, allocations: 112 kB / 405.6 MB, free: 7.918 MB / 302.1 MB Notification: Performance of collectInitialBindings (initialization): time 2.243e-05/0.104, allocations: 19.73 kB / 405.6 MB, free: 7.898 MB / 302.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 5.861e-06/0.104, allocations: 4 kB / 405.6 MB, free: 7.895 MB / 302.1 MB Notification: Performance of setup shared object (initialization): time 0.0001353/0.1042, allocations: 318.8 kB / 405.9 MB, free: 7.574 MB / 302.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 3.373e-05/0.1042, allocations: 15.98 kB / 405.9 MB, free: 7.559 MB / 302.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 4.286e-05/0.1043, allocations: 33.7 kB / 405.9 MB, free: 7.52 MB / 302.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 4.11e-05/0.1043, allocations: 23.94 kB / 406 MB, free: 7.496 MB / 302.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.493e-06/0.1043, allocations: 0 / 406 MB, free: 7.496 MB / 302.1 MB Notification: Performance of matching and sorting (n=8) (initialization): time 0.0001275/0.1045, allocations: 89.48 kB / 406.1 MB, free: 7.402 MB / 302.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.503e-05/0.1045, allocations: 7.125 kB / 406.1 MB, free: 7.398 MB / 302.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.749e-06/0.1045, allocations: 0 / 406.1 MB, free: 7.398 MB / 302.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 1.376e-05/0.1045, allocations: 4 kB / 406.1 MB, free: 7.395 MB / 302.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 9.869e-05/0.1046, allocations: 12.23 kB / 406.1 MB, free: 7.383 MB / 302.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.284e-06/0.1046, allocations: 4 kB / 406.1 MB, free: 7.379 MB / 302.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 5.408e-05/0.1047, allocations: 11.84 kB / 406.1 MB, free: 7.367 MB / 302.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.863e-06/0.1047, allocations: 8.031 kB / 406.1 MB, free: 7.359 MB / 302.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 2 * 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 (8): * Single equations (assignments): 8 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 9.798e-05/0.1048, allocations: 117.8 kB / 406.2 MB, free: 7.234 MB / 302.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 3.448e-05/0.1048, allocations: 15.86 kB / 406.2 MB, free: 7.219 MB / 302.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.568e-05/0.1049, allocations: 16.98 kB / 406.2 MB, free: 7.199 MB / 302.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.366e-06/0.1049, allocations: 0 / 406.2 MB, free: 7.199 MB / 302.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.318e-06/0.1049, allocations: 3.938 kB / 406.2 MB, free: 7.195 MB / 302.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.835e-06/0.1049, allocations: 0 / 406.2 MB, free: 7.195 MB / 302.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002291/0.1052, allocations: 205.5 kB / 406.4 MB, free: 6.945 MB / 302.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.984e-06/0.1052, allocations: 0 / 406.4 MB, free: 6.945 MB / 302.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 6.658e-05/0.1052, allocations: 12 kB / 406.5 MB, free: 6.934 MB / 302.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 4.599e-06/0.1053, allocations: 3.953 kB / 406.5 MB, free: 6.93 MB / 302.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.008e-05/0.1053, allocations: 3.984 kB / 406.5 MB, free: 6.926 MB / 302.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.422e-06/0.1053, allocations: 0 / 406.5 MB, free: 6.926 MB / 302.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.012e-06/0.1053, allocations: 0 / 406.5 MB, free: 6.926 MB / 302.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002088/0.1055, allocations: 187.4 kB / 406.7 MB, free: 6.727 MB / 302.1 MB Notification: Performance of postOpt removeConstants (simulation): time 7.487e-05/0.1056, allocations: 96.92 kB / 406.7 MB, free: 6.613 MB / 302.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.159e-05/0.1056, allocations: 3.953 kB / 406.8 MB, free: 6.609 MB / 302.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 6.898e-05/0.1057, allocations: 8.062 kB / 406.8 MB, free: 6.602 MB / 302.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.963e-05/0.1057, allocations: 4 kB / 406.8 MB, free: 6.598 MB / 302.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.496e-06/0.1057, allocations: 0 / 406.8 MB, free: 6.598 MB / 302.1 MB Notification: Performance of sorting global known variables: time 9.828e-05/0.1058, allocations: 128.3 kB / 406.9 MB, free: 6.473 MB / 302.1 MB Notification: Performance of sort global known variables: time 1.41e-07/0.1058, allocations: 0 / 406.9 MB, free: 6.473 MB / 302.1 MB Notification: Performance of remove unused functions: time 0.0002359/0.1061, allocations: 16 kB / 406.9 MB, free: 6.457 MB / 302.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 1 (muscle.state) * 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 (5): * Single equations (assignments): 5 * 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: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0004379/0.1065, allocations: 0.7124 MB / 407.6 MB, free: 5.719 MB / 302.1 MB Notification: Performance of simCode: created initialization part: time 0.0001171/0.1067, allocations: 44.03 kB / 407.7 MB, free: 5.676 MB / 302.1 MB Notification: Performance of simCode: created event and clocks part: time 1.833e-06/0.1067, allocations: 4 kB / 407.7 MB, free: 5.672 MB / 302.1 MB Notification: Performance of simCode: created simulation system equations: time 2.839e-05/0.1067, allocations: 16 kB / 407.7 MB, free: 5.656 MB / 302.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003589/0.1071, allocations: 35.78 kB / 407.7 MB, free: 5.621 MB / 302.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001051/0.1081, allocations: 0.7433 MB / 408.5 MB, free: 4.828 MB / 302.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002615/0.1084, allocations: 0.7004 MB / 409.2 MB, free: 4.102 MB / 302.1 MB Notification: Performance of simCode: alias equations: time 5.679e-05/0.1085, allocations: 16.88 kB / 409.2 MB, free: 4.082 MB / 302.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 6.824e-05/0.1085, allocations: 31.42 kB / 409.2 MB, free: 4.051 MB / 302.1 MB Notification: Performance of SimCode: time 3.4e-07/0.1085, allocations: 0 / 409.2 MB, free: 4.051 MB / 302.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01252/0.1211, allocations: 2.418 MB / 411.6 MB, free: 1.629 MB / 302.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002423/0.1213, allocations: 175.5 kB / 411.8 MB, free: 1.387 MB / 302.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 1.716/1.837, allocations: 0 / 411.8 MB, free: 1.387 MB / 302.1 MB (rm -f Physiolibrary_Physiolibrary.Thermal.Examples.MuscleHeat.pipe ; mkfifo Physiolibrary_Physiolibrary.Thermal.Examples.MuscleHeat.pipe ; head -c 1048576 < Physiolibrary_Physiolibrary.Thermal.Examples.MuscleHeat.pipe >> ../files/Physiolibrary_Physiolibrary.Thermal.Examples.MuscleHeat.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Physiolibrary_Physiolibrary_Thermal_Examples_MuscleHeat_fmu --startTime=0 --stopTime=10000 --timeout=50 --tolerance=1e-06 Physiolibrary_Physiolibrary_Thermal_Examples_MuscleHeat.fmu > Physiolibrary_Physiolibrary.Thermal.Examples.MuscleHeat.pipe 2>&1) Environment - environmentSimulation: