Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr HanserModelica_HanserModelica.SynchronousMachines.SMEE_Rectifier.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/HanserModelica 2.0.0/package.mo", uses=false) Using package HanserModelica with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/HanserModelica 2.0.0/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(HanserModelica.SynchronousMachines.SMEE_Rectifier,fileNamePrefix="HanserModelica_HanserModelica_SynchronousMachines_SMEE_Rectifier",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(HanserModelica.SynchronousMachines.SMEE_Rectifier,fileNamePrefix="HanserModelica_HanserModelica_SynchronousMachines_SMEE_Rectifier",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 0.0009376/0.0009375, allocations: 91.61 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 1.356/1.356, allocations: 223.3 MB / 239 MB, free: 5.602 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001361/0.001361, allocations: 187.5 kB / 290.3 MB, free: 2.297 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/HanserModelica 2.0.0/package.mo): time 0.03461/0.03461, allocations: 8.785 MB / 350.1 MB, free: 4.719 MB / 238.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003587/0.0003588, allocations: 12.06 kB / 413.3 MB, free: 42.91 MB / 286.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.07963/0.08001, allocations: 52.57 MB / 465.8 MB, free: 13.47 MB / 302.1 MB Notification: Performance of NFInst.instantiate(HanserModelica.SynchronousMachines.SMEE_Rectifier): time 0.01564/0.0957, allocations: 15.19 MB / 481 MB, free: 14.21 MB / 318.1 MB Notification: Performance of NFInst.instExpressions: time 0.01318/0.1089, allocations: 7.748 MB / 488.8 MB, free: 6.449 MB / 318.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002891/0.1118, allocations: 95.62 kB / 488.9 MB, free: 6.355 MB / 318.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003462/0.1153, allocations: 0.9634 MB / 489.8 MB, free: 5.387 MB / 318.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004667/0.12, allocations: 1.363 MB / 491.2 MB, free: 4.016 MB / 318.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.005661/0.1257, allocations: 1.811 MB / 493 MB, free: 2.215 MB / 318.1 MB Notification: Performance of NFFlatten.flatten: time 0.007353/0.1331, allocations: 5.092 MB / 498.1 MB, free: 13.1 MB / 334.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.005729/0.1388, allocations: 2.371 MB / 0.4887 GB, free: 10.68 MB / 334.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003184/0.142, allocations: 1.572 MB / 0.4903 GB, free: 9.105 MB / 334.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004038/0.1461, allocations: 1.953 MB / 0.4922 GB, free: 7.145 MB / 334.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001528/0.1476, allocations: 240 kB / 0.4924 GB, free: 6.91 MB / 334.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002176/0.1498, allocations: 0.5503 MB / 0.493 GB, free: 6.359 MB / 334.1 MB Notification: Performance of NFScalarize.scalarize: time 0.001502/0.1514, allocations: 0.895 MB / 0.4938 GB, free: 5.461 MB / 334.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001633/0.153, allocations: 0.8823 MB / 0.4947 GB, free: 4.57 MB / 334.1 MB Notification: Performance of NFConvertDAE.convert: time 0.006919/0.1599, allocations: 6.408 MB / 0.5009 GB, free: 14.14 MB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.22e-06/0.16, allocations: 0 / 0.5009 GB, free: 14.14 MB / 350.1 MB Notification: Performance of FrontEnd: time 1.623e-06/0.16, allocations: 0 / 0.5009 GB, free: 14.14 MB / 350.1 MB Notification: Performance of Transformations before backend: time 0.000209/0.1602, allocations: 0 / 0.5009 GB, free: 14.14 MB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 984 * Number of variables: 984 Notification: Performance of Generate backend data structure: time 0.01106/0.1713, allocations: 4.507 MB / 0.5053 GB, free: 9.566 MB / 350.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.05e-05/0.1713, allocations: 12.03 kB / 0.5054 GB, free: 9.555 MB / 350.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001296/0.1726, allocations: 0.5535 MB / 0.5059 GB, free: 8.992 MB / 350.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005424/0.178, allocations: 1.002 MB / 0.5069 GB, free: 7.984 MB / 350.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005907/0.184, allocations: 2.708 MB / 0.5095 GB, free: 5.227 MB / 350.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002632/0.1843, allocations: 279.5 kB / 0.5098 GB, free: 4.953 MB / 350.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001043/0.1854, allocations: 383.8 kB / 0.5102 GB, free: 4.578 MB / 350.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01058/0.1959, allocations: 4.884 MB / 0.5149 GB, free: 15.62 MB / 366.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 8.595e-05/0.1961, allocations: 3.906 kB / 0.5149 GB, free: 15.61 MB / 366.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00041/0.1965, allocations: 159.9 kB / 0.5151 GB, free: 15.46 MB / 366.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001867/0.1967, allocations: 171.4 kB / 0.5152 GB, free: 15.29 MB / 366.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008257/0.2049, allocations: 4.175 MB / 0.5193 GB, free: 11.11 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.192/0.3969, allocations: 16.6 MB / 0.5355 GB, free: 55.21 MB / 366.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.006473/0.4034, allocations: 8.173 MB / 0.5435 GB, free: 49.7 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.003109/0.4066, allocations: 1.858 MB / 0.5453 GB, free: 49.67 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.009327/0.4159, allocations: 5.462 MB / 0.5507 GB, free: 48.61 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.461e-05/0.416, allocations: 55.53 kB / 0.5507 GB, free: 48.57 MB / 366.1 MB Notification: Performance of pre-optimization done (n=187): time 3.547e-06/0.416, allocations: 0 / 0.5507 GB, free: 48.57 MB / 366.1 MB Notification: Performance of matching and sorting (n=190): time 0.01363/0.4297, allocations: 7.488 MB / 0.558 GB, free: 45.43 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 7.48e-05/0.4298, allocations: 176 kB / 0.5582 GB, free: 45.24 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003072/0.4329, allocations: 2.295 MB / 0.5604 GB, free: 44.21 MB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001319/0.433, allocations: 61.58 kB / 0.5605 GB, free: 44.15 MB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.000908/0.4339, allocations: 1.718 MB / 0.5622 GB, free: 42.64 MB / 366.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004411/0.4344, allocations: 0.6414 MB / 0.5628 GB, free: 42.09 MB / 366.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001046/0.4345, allocations: 49.94 kB / 0.5628 GB, free: 42.05 MB / 366.1 MB Notification: Performance of setup shared object (initialization): time 0.0001319/0.4346, allocations: 393.5 kB / 0.5632 GB, free: 41.68 MB / 366.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00124/0.4359, allocations: 0.9172 MB / 0.5641 GB, free: 41.2 MB / 366.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001485/0.4374, allocations: 1.572 MB / 0.5657 GB, free: 39.86 MB / 366.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.00166/0.439, allocations: 1.15 MB / 0.5668 GB, free: 39.23 MB / 366.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.154e-05/0.4391, allocations: 4.906 kB / 0.5668 GB, free: 39.23 MB / 366.1 MB Notification: Performance of matching and sorting (n=298) (initialization): time 0.004398/0.4435, allocations: 3.235 MB / 0.5699 GB, free: 37.46 MB / 366.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.0003032/0.4438, allocations: 0.6509 MB / 0.5706 GB, free: 36.59 MB / 366.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.801e-05/0.4438, allocations: 27.08 kB / 0.5706 GB, free: 36.58 MB / 366.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009203/0.4448, allocations: 494.2 kB / 0.5711 GB, free: 36.32 MB / 366.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001538/0.4463, allocations: 0.4981 MB / 0.5716 GB, free: 36.2 MB / 366.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005794/0.4521, allocations: 8.346 MB / 0.5797 GB, free: 28.77 MB / 366.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001857/0.454, allocations: 100.3 kB / 0.5798 GB, free: 28.71 MB / 366.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001631/0.4542, allocations: 95.75 kB / 0.5799 GB, free: 28.7 MB / 366.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.424e-06/0.4542, allocations: 3.812 kB / 0.5799 GB, free: 28.7 MB / 366.1 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.003672/0.4579, allocations: 2.95 MB / 0.5828 GB, free: 26.58 MB / 366.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.73e-05/0.4579, allocations: 24.42 kB / 0.5828 GB, free: 26.55 MB / 366.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0008229/0.4587, allocations: 0.4886 MB / 0.5833 GB, free: 26.05 MB / 366.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001476/0.4602, allocations: 499.2 kB / 0.5838 GB, free: 25.56 MB / 366.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005382/0.4656, allocations: 8.347 MB / 0.5919 GB, free: 16.69 MB / 366.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00167/0.4673, allocations: 92.02 kB / 0.592 GB, free: 16.6 MB / 366.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001314/0.4674, allocations: 92 kB / 0.5921 GB, free: 16.51 MB / 366.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 86 * Number of states: 0 () * Number of discrete variables: 7 (rectifier.diode_p.idealDiode[1].off,rectifier.diode_p.idealDiode[2].off,rectifier.diode_p.idealDiode[3].off,rectifier.diode_n.idealDiode[1].off,rectifier.diode_n.idealDiode[2].off,rectifier.diode_n.idealDiode[3].off,voltageController.I.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (266): * Single equations (assignments): 259 * Array equations: 1 * Algorithm blocks: 0 * Record equations: 1 * 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): 1 {(2,100.0%)} * Non-linear Jacobian: 0 * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(1,100.0%) 5} * Non-linear torn systems: 3 {2 7,2 7,2 7} Notification: Performance of prepare postOptimizeDAE: time 0.001921/0.4694, allocations: 1.199 MB / 0.5933 GB, free: 15.3 MB / 366.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000513/0.4699, allocations: 264.8 kB / 0.5935 GB, free: 15.04 MB / 366.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004114/0.474, allocations: 2.96 MB / 0.5964 GB, free: 12 MB / 366.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.241e-05/0.474, allocations: 27.94 kB / 0.5964 GB, free: 11.97 MB / 366.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.656e-06/0.4741, allocations: 4 kB / 0.5964 GB, free: 11.97 MB / 366.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.582e-05/0.4741, allocations: 12.14 kB / 0.5964 GB, free: 11.96 MB / 366.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007993/0.4821, allocations: 6.327 MB / 0.6026 GB, free: 5.527 MB / 366.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.644e-06/0.4821, allocations: 0 / 0.6026 GB, free: 5.527 MB / 366.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001025/0.4831, allocations: 267.7 kB / 0.6029 GB, free: 5.266 MB / 366.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.001275/0.4844, allocations: 0.681 MB / 0.6035 GB, free: 4.566 MB / 366.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.427e-05/0.4845, allocations: 44 kB / 0.6036 GB, free: 4.523 MB / 366.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01158/0.4961, allocations: 12.92 MB / 0.6162 GB, free: 6.82 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.639e-06/0.4961, allocations: 4 kB / 0.6162 GB, free: 6.816 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.006301/0.5025, allocations: 4.166 MB / 0.6203 GB, free: 2.559 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001106/0.5036, allocations: 0.5369 MB / 0.6208 GB, free: 2 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000305/0.5039, allocations: 47.94 kB / 0.6208 GB, free: 1.953 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00102/0.5049, allocations: 87.94 kB / 0.6209 GB, free: 1.867 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002773/0.5052, allocations: 143.9 kB / 0.6211 GB, free: 1.73 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001047/0.5053, allocations: 51.98 kB / 0.6211 GB, free: 1.68 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.002475/0.5078, allocations: 1.558 MB / 0.6226 GB, free: 112 kB / 382.1 MB Notification: Performance of sort global known variables: time 1.9e-07/0.5078, allocations: 0 / 0.6226 GB, free: 112 kB / 382.1 MB Notification: Performance of remove unused functions: time 0.004585/0.5124, allocations: 1.317 MB / 0.6239 GB, free: 14.8 MB / 398.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 12 (smee.stator.core.Phi.re,smee.stator.core.Phi.im,smee.rotorCage.electroMagneticConverter.singlePhaseElectroMagneticConverter[2].Phi.re,smee.rotorCage.electroMagneticConverter.singlePhaseElectroMagneticConverter[2].Phi.im,smee.excitation.electroMagneticConverter.Phi.re,speed.phi,speed.w,voltageController.I.y,capacitor1.v,capacitor2.v,filter.x[1],filter.x[2]) * Number of discrete variables: 6 (rectifier.diode_p.idealDiode[1].off,rectifier.diode_p.idealDiode[2].off,rectifier.diode_p.idealDiode[3].off,rectifier.diode_n.idealDiode[1].off,rectifier.diode_n.idealDiode[2].off,rectifier.diode_n.idealDiode[3].off) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (137): * Single equations (assignments): 131 * 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: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 3 {(1,100.0%) 5,(1,100.0%) 8,(2,100.0%) 15} * Non-linear torn systems: 3 {2 7,2 7,2 7} Notification: Performance of Backend phase and start with SimCode phase: time 0.006531/0.5189, allocations: 4.857 MB / 0.6287 GB, free: 9.848 MB / 398.1 MB Notification: Performance of simCode: created initialization part: time 0.007191/0.5261, allocations: 5.036 MB / 0.6336 GB, free: 4.672 MB / 398.1 MB Notification: Performance of simCode: created event and clocks part: time 6.121e-06/0.5262, allocations: 4 kB / 0.6336 GB, free: 4.668 MB / 398.1 MB Notification: Performance of simCode: created simulation system equations: time 0.002603/0.5288, allocations: 2.053 MB / 0.6356 GB, free: 2.543 MB / 398.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003017/0.5318, allocations: 0.6949 MB / 0.6363 GB, free: 1.855 MB / 398.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04063/0.5724, allocations: 21.55 MB / 0.6573 GB, free: 10.88 MB / 430.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002534/0.575, allocations: 2.568 MB / 0.6598 GB, free: 8.281 MB / 430.1 MB Notification: Performance of simCode: alias equations: time 0.002511/0.5775, allocations: 0.6306 MB / 0.6604 GB, free: 7.645 MB / 430.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001874/0.5794, allocations: 1.417 MB / 0.6618 GB, free: 6.227 MB / 430.1 MB Notification: Performance of SimCode: time 1.412e-06/0.5794, allocations: 0 / 0.6618 GB, free: 6.227 MB / 430.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.2884/0.8679, allocations: 70.13 MB / 0.7303 GB, free: 132.1 MB / 462.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001496/0.8681, allocations: 217.8 kB / 0.7305 GB, free: 131.9 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 3.612/4.48, allocations: 3.938 kB / 0.7305 GB, free: 131.9 MB / 462.1 MB (rm -f HanserModelica_HanserModelica.SynchronousMachines.SMEE_Rectifier.pipe ; mkfifo HanserModelica_HanserModelica.SynchronousMachines.SMEE_Rectifier.pipe ; head -c 1048576 < HanserModelica_HanserModelica.SynchronousMachines.SMEE_Rectifier.pipe >> ../files/HanserModelica_HanserModelica.SynchronousMachines.SMEE_Rectifier.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_HanserModelica_HanserModelica_SynchronousMachines_SMEE_Rectifier_fmu --startTime=0 --stopTime=1.1 --timeout=50 --tolerance=1e-07 HanserModelica_HanserModelica_SynchronousMachines_SMEE_Rectifier.fmu > HanserModelica_HanserModelica.SynchronousMachines.SMEE_Rectifier.pipe 2>&1) Environment - environmentSimulation: