Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr OpenIPSL_2.0.0_OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_Synchronous 0.93.0/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/Modelica 3.2.3+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 2.0.0/package.mo", uses=false)
Using package OpenIPSL with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 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 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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_Synchronous with version 0.93.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_Synchronous 0.93.0/package.mo)
Running command: "" <> buildModelFMU(OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test,fileNamePrefix="OpenIPSL_2_0_0_OpenIPSL_Tests_Machines_PSAT_InductiveMotorI_SIMBOpenline_Test",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test,fileNamePrefix="OpenIPSL_2_0_0_OpenIPSL_Tests_Machines_PSAT_InductiveMotorI_SIMBOpenline_Test",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_Synchronous 0.93.0/package.mo): time 0.09126/0.09126, allocations: 12.2 MB / 27.18 MB, free: 1.516 MB / 19.63 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008556/0.0008555, allocations: 105.8 kB / 30.69 MB, free: 4.871 MB / 26.18 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.64/1.64, allocations: 205.4 MB / 239.5 MB, free: 11.56 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001814/0.001814, allocations: 183.5 kB / 290.6 MB, free: 13.4 MB / 238.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 2.0.0/package.mo): time 0.522/0.522, allocations: 78.54 MB / 420.1 MB, free: 48.59 MB / 334.1 MB
Notification: Modelica_Synchronous 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: 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: OpenIPSL 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: Performance of FrontEnd - loaded program: time 0.000956/0.0009562, allocations: 32 kB / 0.4895 GB, free: 2.531 MB / 366.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.5139/0.5148, allocations: 69.23 MB / 0.5572 GB, free: 43.16 MB / 430.1 MB
Notification: Performance of NFInst.instantiate(OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test): time 0.004246/0.5192, allocations: 2.449 MB / 0.5595 GB, free: 43.01 MB / 430.1 MB
Notification: Performance of NFInst.instExpressions: time 0.002279/0.5215, allocations: 0.8878 MB / 0.5604 GB, free: 42.82 MB / 430.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0001699/0.5217, allocations: 3.844 kB / 0.5604 GB, free: 42.82 MB / 430.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.0002935/0.522, allocations: 70.56 kB / 0.5605 GB, free: 42.8 MB / 430.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.0003319/0.5223, allocations: 102.5 kB / 0.5606 GB, free: 42.74 MB / 430.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.0009538/0.5233, allocations: 369.9 kB / 0.5609 GB, free: 42.57 MB / 430.1 MB
Notification: Performance of NFFlatten.flatten: time 0.0005219/0.5238, allocations: 379.4 kB / 0.5613 GB, free: 42.38 MB / 430.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.0002167/0.5241, allocations: 77.31 kB / 0.5614 GB, free: 42.35 MB / 430.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.0001941/0.5243, allocations: 147 kB / 0.5615 GB, free: 42.29 MB / 430.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.0003541/0.5246, allocations: 205.6 kB / 0.5617 GB, free: 42.21 MB / 430.1 MB
Notification: Performance of NFPackage.collectConstants: time 5.031e-05/0.5247, allocations: 19.34 kB / 0.5617 GB, free: 42.21 MB / 430.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.0001899/0.5249, allocations: 67.39 kB / 0.5618 GB, free: 42.2 MB / 430.1 MB
Notification: Performance of NFScalarize.scalarize: time 8.17e-05/0.525, allocations: 66.8 kB / 0.5619 GB, free: 42.16 MB / 430.1 MB
Notification: Performance of NFVerifyModel.verify: time 8.183e-05/0.5251, allocations: 82.33 kB / 0.5619 GB, free: 42.1 MB / 430.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.0006078/0.5257, allocations: 366.1 kB / 0.5623 GB, free: 42.01 MB / 430.1 MB
Notification: Performance of FrontEnd - DAE generated: time 7.013e-06/0.5257, allocations: 0 / 0.5623 GB, free: 42.01 MB / 430.1 MB
Notification: Performance of FrontEnd: time 3.256e-06/0.5257, allocations: 1.906 kB / 0.5623 GB, free: 42.01 MB / 430.1 MB
Notification: Performance of Transformations before backend: time 8.125e-06/0.5257, allocations: 0 / 0.5623 GB, free: 42.01 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: 57
 * Number of variables: 57
Notification: Performance of Generate backend data structure: time 0.00291/0.5286, allocations: 0.9835 MB / 0.5632 GB, free: 41.47 MB / 430.1 MB
Notification: Performance of prepare preOptimizeDAE: time 5.784e-05/0.5287, allocations: 13.61 kB / 0.5633 GB, free: 41.46 MB / 430.1 MB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.078e-05/0.5288, allocations: 60.98 kB / 0.5633 GB, free: 41.41 MB / 430.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001598/0.5304, allocations: 260.2 kB / 0.5636 GB, free: 41.37 MB / 430.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005505/0.531, allocations: 344 kB / 0.5639 GB, free: 41.09 MB / 430.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001368/0.5311, allocations: 87.66 kB / 0.564 GB, free: 41.01 MB / 430.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 7.091e-05/0.5312, allocations: 23.06 kB / 0.564 GB, free: 41 MB / 430.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009604/0.5322, allocations: 388.8 kB / 0.5644 GB, free: 40.86 MB / 430.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 1.289e-05/0.5322, allocations: 1.547 kB / 0.5644 GB, free: 40.86 MB / 430.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.574e-05/0.5322, allocations: 9 kB / 0.5644 GB, free: 40.85 MB / 430.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.391e-05/0.5322, allocations: 7.359 kB / 0.5644 GB, free: 40.85 MB / 430.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008855/0.5331, allocations: 391 kB / 0.5648 GB, free: 40.72 MB / 430.1 MB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001934/0.5351, allocations: 1.05 MB / 0.5658 GB, free: 40.14 MB / 430.1 MB
Notification: Performance of preOpt comSubExp (simulation): time 0.006732/0.5418, allocations: 1.826 MB / 0.5676 GB, free: 39.88 MB / 430.1 MB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0004976/0.5423, allocations: 288.1 kB / 0.5678 GB, free: 39.77 MB / 430.1 MB
Notification: Performance of preOpt evalFunc (simulation): time 6.15e-05/0.5424, allocations: 6.344 kB / 0.5678 GB, free: 39.77 MB / 430.1 MB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.744e-05/0.5424, allocations: 43.06 kB / 0.5679 GB, free: 39.72 MB / 430.1 MB
Notification: Performance of pre-optimization done (n=31): time 2.094e-06/0.5424, allocations: 0 / 0.5679 GB, free: 39.72 MB / 430.1 MB
Notification: Performance of matching and sorting (n=31): time 0.006168/0.5486, allocations: 2.391 MB / 0.5702 GB, free: 38.98 MB / 430.1 MB
Notification: Performance of inlineWhenForInitialization (initialization): time 3.982e-05/0.5487, allocations: 54.31 kB / 0.5703 GB, free: 38.92 MB / 430.1 MB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003581/0.549, allocations: 316.7 kB / 0.5706 GB, free: 38.75 MB / 430.1 MB
Notification: Performance of collectPreVariables (initialization): time 3.281e-05/0.5491, allocations: 29.7 kB / 0.5706 GB, free: 38.71 MB / 430.1 MB
Notification: Performance of collectInitialEqns (initialization): time 0.000122/0.5492, allocations: 193.2 kB / 0.5708 GB, free: 38.55 MB / 430.1 MB
Notification: Performance of collectInitialBindings (initialization): time 0.0001075/0.5493, allocations: 104.9 kB / 0.5709 GB, free: 38.47 MB / 430.1 MB
Notification: Performance of simplifyInitialFunctions (initialization): time 2.423e-05/0.5494, allocations: 7.75 kB / 0.5709 GB, free: 38.46 MB / 430.1 MB
Notification: Performance of setup shared object (initialization): time 0.0001033/0.5495, allocations: 350.2 kB / 0.5712 GB, free: 38.13 MB / 430.1 MB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004662/0.5499, allocations: 241.6 kB / 0.5715 GB, free: 38.05 MB / 430.1 MB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004364/0.5504, allocations: 249.5 kB / 0.5717 GB, free: 37.97 MB / 430.1 MB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0004669/0.5509, allocations: 251.7 kB / 0.5719 GB, free: 37.87 MB / 430.1 MB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.024e-06/0.5509, allocations: 0 / 0.5719 GB, free: 37.87 MB / 430.1 MB
Notification: Performance of matching and sorting (n=34) (initialization): time 0.003807/0.5547, allocations: 1.492 MB / 0.5734 GB, free: 37.49 MB / 430.1 MB
Notification: Performance of prepare postOptimizeDAE: time 2.396e-05/0.5547, allocations: 6.562 kB / 0.5734 GB, free: 37.49 MB / 430.1 MB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.006e-05/0.5547, allocations: 1.359 kB / 0.5734 GB, free: 37.49 MB / 430.1 MB
Notification: Performance of postOpt tearingSystem (initialization): time 0.002913/0.5576, allocations: 0.8849 MB / 0.5743 GB, free: 37.32 MB / 430.1 MB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001817/0.5578, allocations: 32.86 kB / 0.5743 GB, free: 37.32 MB / 430.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005307/0.5632, allocations: 3.049 MB / 0.5773 GB, free: 35.39 MB / 430.1 MB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004968/0.5637, allocations: 69.38 kB / 0.5773 GB, free: 35.36 MB / 430.1 MB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.59e-05/0.5637, allocations: 9.156 kB / 0.5773 GB, free: 35.36 MB / 430.1 MB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 1
 * 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 (21):
 * Single equations (assignments): 18
 * 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: 0
 * Non-linear torn systems: 1 {5 7}
Notification: Performance of prepare postOptimizeDAE: time 0.0002244/0.5639, allocations: 152.3 kB / 0.5775 GB, free: 35.21 MB / 430.1 MB
Notification: Performance of postOpt lateInlineFunction (simulation): time 9.661e-05/0.5641, allocations: 33.31 kB / 0.5775 GB, free: 35.2 MB / 430.1 MB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003682/0.5677, allocations: 1.449 MB / 0.5789 GB, free: 34.82 MB / 430.1 MB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.334e-06/0.5678, allocations: 5.719 kB / 0.5789 GB, free: 34.82 MB / 430.1 MB
Notification: Performance of postOpt constantLinearSystem (simulation): time 9.067e-06/0.5678, allocations: 3.938 kB / 0.579 GB, free: 34.81 MB / 430.1 MB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.492e-06/0.5678, allocations: 0 / 0.579 GB, free: 34.81 MB / 430.1 MB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000656/0.5685, allocations: 0.5179 MB / 0.5795 GB, free: 34.49 MB / 430.1 MB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.42e-06/0.5685, allocations: 0 / 0.5795 GB, free: 34.49 MB / 430.1 MB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001988/0.5687, allocations: 32.83 kB / 0.5795 GB, free: 34.48 MB / 430.1 MB
Notification: Performance of postOpt tearingSystem (simulation): time 0.002377/0.5711, allocations: 0.8065 MB / 0.5803 GB, free: 34.32 MB / 430.1 MB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.684e-05/0.5711, allocations: 10.42 kB / 0.5803 GB, free: 34.32 MB / 430.1 MB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00379/0.5749, allocations: 2.637 MB / 0.5829 GB, free: 32.55 MB / 430.1 MB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.537e-06/0.5749, allocations: 2.625 kB / 0.5829 GB, free: 32.55 MB / 430.1 MB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004156/0.5791, allocations: 1.837 MB / 0.5847 GB, free: 31.95 MB / 430.1 MB
Notification: Performance of postOpt removeConstants (simulation): time 0.0001362/0.5792, allocations: 124.3 kB / 0.5848 GB, free: 31.82 MB / 430.1 MB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 6.411e-05/0.5793, allocations: 2.688 kB / 0.5848 GB, free: 31.82 MB / 430.1 MB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003961/0.5797, allocations: 43.72 kB / 0.5848 GB, free: 31.81 MB / 430.1 MB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000222/0.5799, allocations: 94.34 kB / 0.5849 GB, free: 31.79 MB / 430.1 MB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.668e-05/0.58, allocations: 9.469 kB / 0.5849 GB, free: 31.79 MB / 430.1 MB
Notification: Performance of sorting global known variables: time 0.0002601/0.5802, allocations: 230 kB / 0.5851 GB, free: 31.66 MB / 430.1 MB
Notification: Performance of sort global known variables: time 1.4e-07/0.5803, allocations: 0 / 0.5851 GB, free: 31.66 MB / 430.1 MB
Notification: Performance of remove unused functions: time 0.0005923/0.5809, allocations: 137.1 kB / 0.5853 GB, free: 31.65 MB / 430.1 MB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 1 (motorTypeI.s)
 * 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 (22):
 * Single equations (assignments): 19
 * 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 {(4,100.0%) 4}
 * Non-linear torn systems: 0
Notification: Performance of Backend phase and start with SimCode phase: time 0.004529/0.5854, allocations: 2.38 MB / 0.5876 GB, free: 30.51 MB / 430.1 MB
Notification: Performance of simCode: created initialization part: time 0.002417/0.5878, allocations: 1.085 MB / 0.5887 GB, free: 29.96 MB / 430.1 MB
Notification: Performance of simCode: created event and clocks part: time 4.799e-06/0.5878, allocations: 4 kB / 0.5887 GB, free: 29.96 MB / 430.1 MB
Notification: Performance of simCode: created simulation system equations: time 0.001776/0.5896, allocations: 0.796 MB / 0.5894 GB, free: 29.5 MB / 430.1 MB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000468/0.5901, allocations: 31.19 kB / 0.5895 GB, free: 29.48 MB / 430.1 MB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01244/0.6026, allocations: 3.844 MB / 0.5932 GB, free: 28.02 MB / 430.1 MB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003152/0.6029, allocations: 0.7885 MB / 0.594 GB, free: 27.32 MB / 430.1 MB
Notification: Performance of simCode: alias equations: time 0.0001222/0.6031, allocations: 25.64 kB / 0.594 GB, free: 27.32 MB / 430.1 MB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001748/0.6032, allocations: 114.6 kB / 0.5941 GB, free: 27.23 MB / 430.1 MB
Notification: Performance of SimCode: time 1.232e-06/0.6032, allocations: 0 / 0.5941 GB, free: 27.23 MB / 430.1 MB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05074/0.654, allocations: 10.19 MB / 0.6041 GB, free: 25.15 MB / 430.1 MB
Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001883/0.6542, allocations: 245 kB / 0.6043 GB, free: 24.9 MB / 430.1 MB
Notification: Performance of buildModelFMU: Generate platform static: time 2.127/2.781, allocations: 3.234 kB / 0.6043 GB, free: 24.9 MB / 430.1 MB
(rm -f OpenIPSL_2.0.0_OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test.pipe ; mkfifo OpenIPSL_2.0.0_OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test.pipe ; head -c 1048576 < OpenIPSL_2.0.0_OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test.pipe >> ../files/OpenIPSL_2.0.0_OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator  --tempDir=temp_OpenIPSL_2_0_0_OpenIPSL_Tests_Machines_PSAT_InductiveMotorI_SIMBOpenline_Test_fmu --startTime=0 --stopTime=20 --timeout=50 --tolerance=1e-06 OpenIPSL_2_0_0_OpenIPSL_Tests_Machines_PSAT_InductiveMotorI_SIMBOpenline_Test.fmu > OpenIPSL_2.0.0_OpenIPSL.Tests.Machines.PSAT.InductiveMotorI_SIMBOpenline_Test.pipe 2>&1)
Environment - environmentSimulation: