Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr OpenIPSL_dev_OpenIPSL.Examples.KundurSMIB.SMIB_AVR.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/Modelica 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/OpenIPSL 3.1.0-master/package.mo", uses=false) Using package OpenIPSL with version 3.1.0-dev (/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0-master/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 Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 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(OpenIPSL.Examples.KundurSMIB.SMIB_AVR,fileNamePrefix="OpenIPSL_dev_OpenIPSL_Examples_KundurSMIB_SMIB_AVR",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(OpenIPSL.Examples.KundurSMIB.SMIB_AVR,fileNamePrefix="OpenIPSL_dev_OpenIPSL_Examples_KundurSMIB_SMIB_AVR",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 0.00085/0.0008502, allocations: 91.84 kB / 15.06 MB, free: 1.098 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.379/1.379, allocations: 223.2 MB / 239 MB, free: 5.449 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001421/0.001421, allocations: 172.6 kB / 290.3 MB, free: 2.141 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0-master/package.mo): time 0.4952/0.4952, allocations: 79.48 MB / 420.8 MB, free: 3.953 MB / 286.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003406/0.0003407, allocations: 16 kB / 0.4892 GB, free: 5.484 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3589/0.3592, allocations: 69.51 MB / 0.5571 GB, free: 37.62 MB / 430.1 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Examples.KundurSMIB.SMIB_AVR): time 0.003841/0.3631, allocations: 4.794 MB / 0.5618 GB, free: 37.33 MB / 430.1 MB Notification: Performance of NFInst.instExpressions: time 0.002552/0.3657, allocations: 1.684 MB / 0.5634 GB, free: 37.11 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003148/0.366, allocations: 6.75 kB / 0.5634 GB, free: 37.11 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0002926/0.3663, allocations: 124 kB / 0.5635 GB, free: 37.07 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001095/0.3674, allocations: 0.5264 MB / 0.5641 GB, free: 36.92 MB / 430.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0007199/0.3681, allocations: 385.5 kB / 0.5644 GB, free: 36.9 MB / 430.1 MB Notification: Performance of NFFlatten.flatten: time 0.0008191/0.369, allocations: 1.07 MB / 0.5655 GB, free: 36.66 MB / 430.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.000262/0.3692, allocations: 191.4 kB / 0.5657 GB, free: 36.61 MB / 430.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0003517/0.3696, allocations: 403.5 kB / 0.566 GB, free: 36.52 MB / 430.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0004851/0.3701, allocations: 0.5141 MB / 0.5665 GB, free: 36.41 MB / 430.1 MB Notification: Performance of NFPackage.collectConstants: time 8.652e-05/0.3702, allocations: 51.97 kB / 0.5666 GB, free: 36.41 MB / 430.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0003083/0.3705, allocations: 176.1 kB / 0.5668 GB, free: 36.4 MB / 430.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0001284/0.3706, allocations: 176.8 kB / 0.5669 GB, free: 36.35 MB / 430.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0001107/0.3708, allocations: 179.6 kB / 0.5671 GB, free: 36.29 MB / 430.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0006854/0.3714, allocations: 1.064 MB / 0.5681 GB, free: 36.13 MB / 430.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.868e-06/0.3715, allocations: 1.875 kB / 0.5681 GB, free: 36.13 MB / 430.1 MB Notification: Performance of FrontEnd: time 1.163e-06/0.3715, allocations: 0.8125 kB / 0.5681 GB, free: 36.13 MB / 430.1 MB Notification: Performance of Transformations before backend: time 9.568e-06/0.3715, allocations: 0 / 0.5681 GB, free: 36.13 MB / 430.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 132 * Number of variables: 132 Notification: Performance of Generate backend data structure: time 0.004357/0.3758, allocations: 1.717 MB / 0.5698 GB, free: 35.43 MB / 430.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.709e-05/0.3759, allocations: 10.22 kB / 0.5698 GB, free: 35.43 MB / 430.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001129/0.376, allocations: 94.44 kB / 0.5699 GB, free: 35.39 MB / 430.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003005/0.379, allocations: 0.5317 MB / 0.5704 GB, free: 35.32 MB / 430.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008749/0.3799, allocations: 0.6541 MB / 0.5711 GB, free: 35.01 MB / 430.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000141/0.3801, allocations: 158.2 kB / 0.5712 GB, free: 34.92 MB / 430.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 9.442e-05/0.3802, allocations: 56.12 kB / 0.5713 GB, free: 34.92 MB / 430.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001278/0.3814, allocations: 0.8289 MB / 0.5721 GB, free: 34.84 MB / 430.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.567e-05/0.3815, allocations: 0 / 0.5721 GB, free: 34.84 MB / 430.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.314e-05/0.3815, allocations: 27.52 kB / 0.5721 GB, free: 34.84 MB / 430.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.285e-05/0.3816, allocations: 11.94 kB / 0.5721 GB, free: 34.84 MB / 430.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001303/0.3829, allocations: 0.7279 MB / 0.5728 GB, free: 34.8 MB / 430.1 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 0.003956/0.3868, allocations: 2.951 MB / 0.5757 GB, free: 33.13 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01119/0.398, allocations: 3.938 MB / 0.5796 GB, free: 32.46 MB / 430.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.001043/0.3991, allocations: 0.5227 MB / 0.5801 GB, free: 32.26 MB / 430.1 MB Notification: Performance of preOpt evalFunc (simulation): time 9.008e-05/0.3992, allocations: 8.047 kB / 0.5801 GB, free: 32.26 MB / 430.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.522e-05/0.3993, allocations: 47.31 kB / 0.5801 GB, free: 32.21 MB / 430.1 MB Notification: Performance of pre-optimization done (n=64): time 2.705e-06/0.3993, allocations: 1.219 kB / 0.5801 GB, free: 32.21 MB / 430.1 MB Notification: Performance of matching and sorting (n=64): time 0.01154/0.4108, allocations: 4.223 MB / 0.5843 GB, free: 31.1 MB / 430.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.27e-05/0.4109, allocations: 88.05 kB / 0.5843 GB, free: 31 MB / 430.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001222/0.4122, allocations: 0.7871 MB / 0.5851 GB, free: 30.65 MB / 430.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001121/0.4123, allocations: 40.86 kB / 0.5851 GB, free: 30.61 MB / 430.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002394/0.4125, allocations: 368.7 kB / 0.5855 GB, free: 30.32 MB / 430.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002159/0.4128, allocations: 247.2 kB / 0.5857 GB, free: 30.12 MB / 430.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 6.62e-05/0.4128, allocations: 19.34 kB / 0.5857 GB, free: 30.11 MB / 430.1 MB Notification: Performance of setup shared object (initialization): time 8.082e-05/0.4129, allocations: 347.9 kB / 0.5861 GB, free: 29.78 MB / 430.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001097/0.414, allocations: 0.5839 MB / 0.5867 GB, free: 29.56 MB / 430.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001116/0.4151, allocations: 0.693 MB / 0.5873 GB, free: 29.24 MB / 430.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001173/0.4163, allocations: 0.6373 MB / 0.588 GB, free: 28.96 MB / 430.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.825e-06/0.4163, allocations: 1.781 kB / 0.588 GB, free: 28.96 MB / 430.1 MB Notification: Performance of matching and sorting (n=125) (initialization): time 0.007146/0.4235, allocations: 2.852 MB / 0.5907 GB, free: 28.13 MB / 430.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.346e-05/0.4236, allocations: 150.2 kB / 0.5909 GB, free: 27.97 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.035e-05/0.4236, allocations: 5.312 kB / 0.5909 GB, free: 27.96 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004/0.4276, allocations: 1.201 MB / 0.5921 GB, free: 27.74 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0009141/0.4285, allocations: 167.9 kB / 0.5922 GB, free: 27.73 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009573/0.4381, allocations: 5.112 MB / 0.5972 GB, free: 25.05 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00129/0.4395, allocations: 144.2 kB / 0.5973 GB, free: 24.99 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001711/0.4396, allocations: 34.48 kB / 0.5974 GB, free: 24.98 MB / 430.1 MB Notification: Performance of prepare postOptimizeDAE: time 9.378e-06/0.4397, allocations: 3.625 kB / 0.5974 GB, free: 24.98 MB / 430.1 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.007239/0.4469, allocations: 2.73 MB / 0.6001 GB, free: 24.21 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.145e-05/0.4469, allocations: 1.781 kB / 0.6001 GB, free: 24.21 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004083/0.451, allocations: 1.198 MB / 0.6012 GB, free: 23.98 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001003/0.4521, allocations: 170.9 kB / 0.6014 GB, free: 23.96 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01406/0.4661, allocations: 5.103 MB / 0.6064 GB, free: 21.29 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00172/0.4679, allocations: 126.9 kB / 0.6065 GB, free: 21.24 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002736/0.4682, allocations: 34.5 kB / 0.6065 GB, free: 21.23 MB / 430.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * 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 (104): * Single equations (assignments): 101 * 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): 2 {(2,100.0%),(2,100.0%)} * Non-linear Jacobian: 0 * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(7,59.2%) 13} * Non-linear torn systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0007468/0.469, allocations: 294.7 kB / 0.6068 GB, free: 20.97 MB / 430.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003427/0.4693, allocations: 92.66 kB / 0.6069 GB, free: 20.92 MB / 430.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006724/0.4761, allocations: 2.393 MB / 0.6092 GB, free: 20.27 MB / 430.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.222e-05/0.4761, allocations: 6.875 kB / 0.6092 GB, free: 20.27 MB / 430.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.005e-05/0.4762, allocations: 4.125 kB / 0.6092 GB, free: 20.27 MB / 430.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.121e-05/0.4762, allocations: 4.453 kB / 0.6092 GB, free: 20.27 MB / 430.1 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 postOpt removeSimpleEquations (simulation): time 0.008555/0.4847, allocations: 3.681 MB / 0.6128 GB, free: 18.57 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.961e-06/0.4848, allocations: 0 / 0.6128 GB, free: 18.57 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005441/0.4853, allocations: 84.19 kB / 0.6129 GB, free: 18.5 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.003185/0.4885, allocations: 1.084 MB / 0.614 GB, free: 17.66 MB / 430.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.001e-05/0.4886, allocations: 16.66 kB / 0.614 GB, free: 17.64 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.007218/0.4959, allocations: 4.141 MB / 0.618 GB, free: 13.78 MB / 430.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.805e-06/0.4959, allocations: 0 / 0.618 GB, free: 13.78 MB / 430.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006463/0.5024, allocations: 3.052 MB / 0.621 GB, free: 10.69 MB / 430.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003563/0.5028, allocations: 195.8 kB / 0.6212 GB, free: 10.48 MB / 430.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000238/0.503, allocations: 12.88 kB / 0.6212 GB, free: 10.47 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008607/0.5039, allocations: 83.92 kB / 0.6213 GB, free: 10.39 MB / 430.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000334/0.5042, allocations: 120.3 kB / 0.6214 GB, free: 10.27 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.386e-05/0.5043, allocations: 20 kB / 0.6214 GB, free: 10.25 MB / 430.1 MB Notification: Performance of sorting global known variables: time 0.0006781/0.505, allocations: 0.5342 MB / 0.622 GB, free: 9.723 MB / 430.1 MB Notification: Performance of sort global known variables: time 9.32e-07/0.505, allocations: 96 / 0.622 GB, free: 9.723 MB / 430.1 MB Notification: Performance of remove unused functions: time 0.002157/0.5071, allocations: 0.5267 MB / 0.6225 GB, free: 9.195 MB / 430.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 9 (G1.machine.delta,G1.machine.w,G1.machine.e1q,G1.machine.e1d,G1.machine.e2q,G1.machine.e2d,G1.avr.vm,G1.avr.vr,G1.avr.vf1) * 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 (47): * Single equations (assignments): 44 * 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): 2 {(2,100.0%),(2,100.0%)} * Non-linear Jacobian: 0 * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(9,48.1%) 9} * Non-linear torn systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.006949/0.5141, allocations: 3.618 MB / 0.626 GB, free: 5.535 MB / 430.1 MB Notification: Performance of simCode: created initialization part: time 0.007299/0.5214, allocations: 3.538 MB / 0.6295 GB, free: 1.895 MB / 430.1 MB Notification: Performance of simCode: created event and clocks part: time 5.49e-06/0.5215, allocations: 0 / 0.6295 GB, free: 1.895 MB / 430.1 MB Notification: Performance of simCode: created simulation system equations: time 0.002529/0.524, allocations: 1.266 MB / 0.6307 GB, free: 0.5781 MB / 430.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009392/0.525, allocations: 71.3 kB / 0.6308 GB, free: 0.5078 MB / 430.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01801/0.543, allocations: 7.911 MB / 0.6385 GB, free: 8.422 MB / 446.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006183/0.5437, allocations: 0.9757 MB / 0.6394 GB, free: 7.418 MB / 446.1 MB Notification: Performance of simCode: alias equations: time 0.0005819/0.5443, allocations: 93.66 kB / 0.6395 GB, free: 7.328 MB / 446.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005412/0.5448, allocations: 315.3 kB / 0.6398 GB, free: 7.02 MB / 446.1 MB Notification: Performance of SimCode: time 9.62e-07/0.5449, allocations: 0 / 0.6398 GB, free: 7.02 MB / 446.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04649/0.5913, allocations: 25.43 MB / 0.6647 GB, free: 13.96 MB / 478.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001721/0.5916, allocations: 197.8 kB / 0.6648 GB, free: 13.72 MB / 478.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 2.329/2.921, allocations: 0 / 0.6648 GB, free: 13.72 MB / 478.1 MB (rm -f OpenIPSL_dev_OpenIPSL.Examples.KundurSMIB.SMIB_AVR.pipe ; mkfifo OpenIPSL_dev_OpenIPSL.Examples.KundurSMIB.SMIB_AVR.pipe ; head -c 1048576 < OpenIPSL_dev_OpenIPSL.Examples.KundurSMIB.SMIB_AVR.pipe >> ../files/OpenIPSL_dev_OpenIPSL.Examples.KundurSMIB.SMIB_AVR.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_OpenIPSL_dev_OpenIPSL_Examples_KundurSMIB_SMIB_AVR_fmu --startTime=0 --stopTime=10 --timeout=50 --tolerance=1e-06 OpenIPSL_dev_OpenIPSL_Examples_KundurSMIB_SMIB_AVR.fmu > OpenIPSL_dev_OpenIPSL.Examples.KundurSMIB.SMIB_AVR.pipe 2>&1) Environment - environmentSimulation: