Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr OpenIPSL_2.0.0_OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_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.Branches.PSAT.PhaseShiftingTransformer_Test,fileNamePrefix="OpenIPSL_2_0_0_OpenIPSL_Tests_Branches_PSAT_PhaseShiftingTransformer_Test",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test,fileNamePrefix="OpenIPSL_2_0_0_OpenIPSL_Tests_Branches_PSAT_PhaseShiftingTransformer_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 0.09966/0.09966, allocations: 12.2 MB / 27.18 MB, free: 1.504 MB / 19.63 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008743/0.0008745, allocations: 105.8 kB / 30.68 MB, free: 4.859 MB / 26.18 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.338/1.338, allocations: 205.4 MB / 239.5 MB, free: 13.59 MB / 206.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001048/0.001048, allocations: 183 kB / 290.6 MB, free: 11.64 MB / 238.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 2.0.0/package.mo): time 0.4636/0.4636, allocations: 78.54 MB / 420.1 MB, free: 11.65 MB / 302.1 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 0.0008918/0.0008918, allocations: 31.98 kB / 0.4896 GB, free: 10.4 MB / 382.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3309/0.3318, allocations: 69.24 MB / 0.5572 GB, free: 21.04 MB / 382.1 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test): time 0.002701/0.3346, allocations: 3.102 MB / 0.5602 GB, free: 17.91 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.001479/0.3361, allocations: 0.9755 MB / 0.5612 GB, free: 16.93 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0002189/0.3363, allocations: 4 kB / 0.5612 GB, free: 16.93 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0002282/0.3366, allocations: 79.48 kB / 0.5612 GB, free: 16.85 MB / 382.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 2.0.0/Electrical/Branches/PSAT/TwoWindingTransformer.mo:44:3-44:83:writable] Warning: In relation phaseShiftingTransformer.twoWindingTransformer.m <> 1.0, <> on Real numbers is only allowed inside functions. Notification: Performance of NFTyping.typeBindings: time 0.0003049/0.3369, allocations: 146.9 kB / 0.5614 GB, free: 16.7 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0004936/0.3374, allocations: 267.3 kB / 0.5616 GB, free: 16.44 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.0003402/0.3377, allocations: 0.5407 MB / 0.5622 GB, free: 15.9 MB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001815/0.3379, allocations: 123.5 kB / 0.5623 GB, free: 15.78 MB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0001861/0.3381, allocations: 207.1 kB / 0.5625 GB, free: 15.57 MB / 382.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000214/0.3383, allocations: 230.9 kB / 0.5627 GB, free: 15.35 MB / 382.1 MB Notification: Performance of NFPackage.collectConstants: time 3.798e-05/0.3384, allocations: 28 kB / 0.5627 GB, free: 15.32 MB / 382.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0001353/0.3385, allocations: 67.91 kB / 0.5628 GB, free: 15.25 MB / 382.1 MB Notification: Performance of NFScalarize.scalarize: time 5.471e-05/0.3386, allocations: 83.61 kB / 0.5629 GB, free: 15.17 MB / 382.1 MB Notification: Performance of NFVerifyModel.verify: time 6.145e-05/0.3387, allocations: 109.5 kB / 0.563 GB, free: 15.06 MB / 382.1 MB Notification: Performance of NFConvertDAE.convert: time 0.000327/0.339, allocations: 0.5053 MB / 0.5635 GB, free: 14.55 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.299e-06/0.339, allocations: 0 / 0.5635 GB, free: 14.55 MB / 382.1 MB Notification: Performance of FrontEnd: time 1.763e-06/0.339, allocations: 4 kB / 0.5635 GB, free: 14.55 MB / 382.1 MB Notification: Performance of Transformations before backend: time 5.71e-06/0.339, allocations: 0 / 0.5635 GB, free: 14.55 MB / 382.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 71 * Number of variables: 71 Notification: Performance of Generate backend data structure: time 0.00105/0.3401, allocations: 0.767 MB / 0.5642 GB, free: 13.73 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.196e-05/0.3401, allocations: 11.98 kB / 0.5642 GB, free: 13.72 MB / 382.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 6.613e-05/0.3402, allocations: 70.53 kB / 0.5643 GB, free: 13.64 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00086/0.3411, allocations: 167.2 kB / 0.5645 GB, free: 13.48 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004001/0.3415, allocations: 393 kB / 0.5648 GB, free: 13.05 MB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.157e-05/0.3416, allocations: 58.34 kB / 0.5649 GB, free: 12.99 MB / 382.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 5.116e-05/0.3416, allocations: 28 kB / 0.5649 GB, free: 12.96 MB / 382.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006911/0.3423, allocations: 397.9 kB / 0.5653 GB, free: 12.57 MB / 382.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.126e-05/0.3424, allocations: 4 kB / 0.5653 GB, free: 12.57 MB / 382.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.224e-05/0.3424, allocations: 8 kB / 0.5653 GB, free: 12.56 MB / 382.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.009e-05/0.3424, allocations: 11.94 kB / 0.5653 GB, free: 12.55 MB / 382.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005977/0.343, allocations: 350.4 kB / 0.5657 GB, free: 12.21 MB / 382.1 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 0.00214/0.3452, allocations: 1.864 MB / 0.5675 GB, free: 10.2 MB / 382.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0008175/0.346, allocations: 0.838 MB / 0.5683 GB, free: 9.246 MB / 382.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003893/0.3464, allocations: 208.8 kB / 0.5685 GB, free: 9.039 MB / 382.1 MB Notification: Performance of preOpt evalFunc (simulation): time 3.878e-05/0.3464, allocations: 4 kB / 0.5685 GB, free: 9.035 MB / 382.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.786e-05/0.3465, allocations: 30.56 kB / 0.5685 GB, free: 8.996 MB / 382.1 MB Notification: Performance of pre-optimization done (n=24): time 2.635e-06/0.3465, allocations: 4 kB / 0.5685 GB, free: 8.992 MB / 382.1 MB Notification: Performance of matching and sorting (n=24): time 0.003997/0.3505, allocations: 1.411 MB / 0.5699 GB, free: 7.555 MB / 382.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 2.573e-05/0.3505, allocations: 51.41 kB / 0.57 GB, free: 7.492 MB / 382.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003793/0.3509, allocations: 429.9 kB / 0.5704 GB, free: 7.062 MB / 382.1 MB Notification: Performance of collectPreVariables (initialization): time 2.386e-05/0.3509, allocations: 33.7 kB / 0.5704 GB, free: 7.023 MB / 382.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001281/0.3511, allocations: 255.9 kB / 0.5706 GB, free: 6.77 MB / 382.1 MB Notification: Performance of collectInitialBindings (initialization): time 6.687e-05/0.3511, allocations: 90.73 kB / 0.5707 GB, free: 6.68 MB / 382.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 2.063e-05/0.3512, allocations: 8 kB / 0.5707 GB, free: 6.672 MB / 382.1 MB Notification: Performance of setup shared object (initialization): time 6.976e-05/0.3512, allocations: 350.8 kB / 0.5711 GB, free: 6.32 MB / 382.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003553/0.3516, allocations: 200.2 kB / 0.5713 GB, free: 6.121 MB / 382.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003609/0.352, allocations: 245.1 kB / 0.5715 GB, free: 5.867 MB / 382.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003667/0.3524, allocations: 209.5 kB / 0.5717 GB, free: 5.664 MB / 382.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.831e-06/0.3524, allocations: 3.984 kB / 0.5717 GB, free: 5.66 MB / 382.1 MB Notification: Performance of matching and sorting (n=39) (initialization): time 0.002064/0.3544, allocations: 0.9345 MB / 0.5726 GB, free: 4.715 MB / 382.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.034e-05/0.3545, allocations: 8 kB / 0.5726 GB, free: 4.707 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.075e-06/0.3545, allocations: 0 / 0.5726 GB, free: 4.707 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002021/0.3565, allocations: 0.6524 MB / 0.5733 GB, free: 4.051 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000761/0.3573, allocations: 175.8 kB / 0.5734 GB, free: 3.879 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0061/0.3634, allocations: 3.157 MB / 0.5765 GB, free: 0.5898 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000446/0.3639, allocations: 67.61 kB / 0.5766 GB, free: 0.5234 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.939e-05/0.3639, allocations: 11.98 kB / 0.5766 GB, free: 0.5117 MB / 382.1 MB Warning: Assuming fixed start value for the following 2 variables: phaseShiftingTransformer.phaseShifter.alpha:VARIABLE(start = phaseShiftingTransformer.phaseShifter.alpha0 unit = "rad" fixed = true ) "Shifting angle" type: Real phaseShiftingTransformer.phaseShifter.pmes:VARIABLE(start = phaseShiftingTransformer.phaseShifter.pmes0 unit = "1" fixed = true ) "Measured power flow" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 5 * 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 (30): * Single equations (assignments): 29 * 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: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {5 5} Notification: Performance of prepare postOptimizeDAE: time 0.0002573/0.3642, allocations: 159.3 kB / 0.5767 GB, free: 356 kB / 382.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001041/0.3643, allocations: 47.42 kB / 0.5768 GB, free: 308 kB / 382.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002405/0.3667, allocations: 0.8771 MB / 0.5776 GB, free: 15.42 MB / 398.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.278e-06/0.3667, allocations: 0 / 0.5776 GB, free: 15.42 MB / 398.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.613e-06/0.3668, allocations: 4.281 kB / 0.5776 GB, free: 15.41 MB / 398.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.258e-06/0.3668, allocations: 0 / 0.5776 GB, free: 15.41 MB / 398.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003341/0.3701, allocations: 1.591 MB / 0.5792 GB, free: 13.75 MB / 398.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.168e-06/0.3701, allocations: 3.938 kB / 0.5792 GB, free: 13.75 MB / 398.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008663/0.371, allocations: 159.8 kB / 0.5793 GB, free: 13.59 MB / 398.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.002606/0.3736, allocations: 0.7305 MB / 0.5801 GB, free: 12.86 MB / 398.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.497e-05/0.3737, allocations: 11.98 kB / 0.5801 GB, free: 12.84 MB / 398.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.006727/0.3804, allocations: 3.128 MB / 0.5831 GB, free: 9.582 MB / 398.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.744e-06/0.3805, allocations: 0 / 0.5831 GB, free: 9.582 MB / 398.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003061/0.3835, allocations: 1.159 MB / 0.5843 GB, free: 8.402 MB / 398.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0002112/0.3838, allocations: 124.5 kB / 0.5844 GB, free: 8.262 MB / 398.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001053/0.3839, allocations: 15.97 kB / 0.5844 GB, free: 8.246 MB / 398.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003776/0.3843, allocations: 27.98 kB / 0.5844 GB, free: 8.219 MB / 398.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001935/0.3845, allocations: 59.89 kB / 0.5845 GB, free: 8.16 MB / 398.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.601e-05/0.3845, allocations: 12.05 kB / 0.5845 GB, free: 8.148 MB / 398.1 MB Notification: Performance of sorting global known variables: time 0.0004099/0.3849, allocations: 299.1 kB / 0.5848 GB, free: 7.855 MB / 398.1 MB Notification: Performance of sort global known variables: time 1.793e-06/0.3849, allocations: 4 kB / 0.5848 GB, free: 7.852 MB / 398.1 MB Notification: Performance of remove unused functions: time 0.0006351/0.3856, allocations: 132.1 kB / 0.5849 GB, free: 7.723 MB / 398.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 2 (phaseShiftingTransformer.phaseShifter.pmes,phaseShiftingTransformer.phaseShifter.alpha) * 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 (15): * Single equations (assignments): 14 * 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: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 0 * Non-linear torn systems: 1 {5 5} Notification: Performance of Backend phase and start with SimCode phase: time 0.002961/0.3885, allocations: 1.61 MB / 0.5865 GB, free: 6.086 MB / 398.1 MB Notification: Performance of simCode: created initialization part: time 0.002584/0.3912, allocations: 0.8145 MB / 0.5873 GB, free: 5.258 MB / 398.1 MB Notification: Performance of simCode: created event and clocks part: time 3.427e-06/0.3912, allocations: 0 / 0.5873 GB, free: 5.258 MB / 398.1 MB Notification: Performance of simCode: created simulation system equations: time 0.002078/0.3933, allocations: 0.6117 MB / 0.5879 GB, free: 4.633 MB / 398.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0005035/0.3938, allocations: 33.97 kB / 0.5879 GB, free: 4.598 MB / 398.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007896/0.4017, allocations: 3.259 MB / 0.5911 GB, free: 1.285 MB / 398.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000483/0.4022, allocations: 0.823 MB / 0.5919 GB, free: 448 kB / 398.1 MB Notification: Performance of simCode: alias equations: time 0.0001523/0.4024, allocations: 30.97 kB / 0.5919 GB, free: 412 kB / 398.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002411/0.4026, allocations: 155.3 kB / 0.5921 GB, free: 256 kB / 398.1 MB Notification: Performance of SimCode: time 1.493e-06/0.4027, allocations: 4 kB / 0.5921 GB, free: 252 kB / 398.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03057/0.4332, allocations: 10.74 MB / 0.6026 GB, free: 5.664 MB / 414.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0002893/0.4336, allocations: 225.8 kB / 0.6028 GB, free: 5.418 MB / 414.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 2.062/2.495, allocations: 3.75 kB / 0.6028 GB, free: 5.418 MB / 414.1 MB (rm -f OpenIPSL_2.0.0_OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test.pipe ; mkfifo OpenIPSL_2.0.0_OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test.pipe ; head -c 1048576 < OpenIPSL_2.0.0_OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test.pipe >> ../files/OpenIPSL_2.0.0_OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_OpenIPSL_2_0_0_OpenIPSL_Tests_Branches_PSAT_PhaseShiftingTransformer_Test_fmu --startTime=0 --stopTime=10000 --timeout=50 --tolerance=1e-06 OpenIPSL_2_0_0_OpenIPSL_Tests_Branches_PSAT_PhaseShiftingTransformer_Test.fmu > OpenIPSL_2.0.0_OpenIPSL.Tests.Branches.PSAT.PhaseShiftingTransformer_Test.pipe 2>&1) Environment - environmentSimulation: