Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo) Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/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 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(BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality,fileNamePrefix="BuildingSystems_BuildingSystems_Utilities_Diagnostics_Validation_CheckEquality",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality,fileNamePrefix="BuildingSystems_BuildingSystems_Utilities_Diagnostics_Validation_CheckEquality",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 0.0007277/0.0007277, allocations: 86.09 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 0.0007752/0.0007752, 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 4.0.0+maint.om/package.mo): time 1.264/1.264, allocations: 223.3 MB / 240 MB, free: 5.414 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.001602/0.001602, allocations: 254.9 kB / 291.3 MB, free: 1.98 MB / 238.1 MB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:5:3-5:34:writable] Warning: Got element f_alp that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:6:3-6:35:writable] Warning: Elements in the package.mo-file need to be in the same relative order as the package.order file. Got element named f_lay but it was already added because it was not the next element in the list at that time. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:6:3-6:35:writable] Warning: Got element f_lay that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:7:3-7:37:writable] Warning: Elements in the package.mo-file need to be in the same relative order as the package.order file. Got element named f_loss but it was already added because it was not the next element in the list at that time. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:7:3-7:37:writable] Warning: Got element f_loss that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:8:3-8:33:writable] Warning: Elements in the package.mo-file need to be in the same relative order as the package.order file. Got element named f_pv but it was already added because it was not the next element in the list at that time. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:8:3-8:33:writable] Warning: Got element f_pv that was not referenced in the package.order file. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/Buildings/Airvolumes/Parameter/package.mo:2:1-34:14:writable] Warning: f_pv was referenced in the package.order file, but was not found in package.mo, f_pv/package.mo or f_pv.mo. Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 0.7786/0.7786, allocations: 144.7 MB / 487.2 MB, free: 7.148 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0004172/0.0004173, allocations: 14.66 kB / 0.5686 GB, free: 38.43 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1166/0.117, allocations: 83.09 MB / 0.6497 GB, free: 3.496 MB / 446.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality): time 0.001506/0.1185, allocations: 1.222 MB / 0.6509 GB, free: 2.266 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.0005433/0.1191, allocations: 399.7 kB / 0.6513 GB, free: 1.875 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 3.188e-05/0.1191, allocations: 0 / 0.6513 GB, free: 1.875 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 1.611e-05/0.1192, allocations: 11.92 kB / 0.6513 GB, free: 1.863 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 4.516e-05/0.1192, allocations: 0 / 0.6513 GB, free: 1.863 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0001518/0.1194, allocations: 23.91 kB / 0.6513 GB, free: 1.84 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 6.56e-05/0.1194, allocations: 35.92 kB / 0.6513 GB, free: 1.805 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 7.405e-05/0.1195, allocations: 17.14 kB / 0.6514 GB, free: 1.789 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 8.501e-05/0.1196, allocations: 20.48 kB / 0.6514 GB, free: 1.77 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 3.914e-05/0.1197, allocations: 16.66 kB / 0.6514 GB, free: 1.754 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 1.209e-05/0.1197, allocations: 4 kB / 0.6514 GB, free: 1.75 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 9.057e-06/0.1197, allocations: 1.188 kB / 0.6514 GB, free: 1.75 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 1.222e-05/0.1197, allocations: 8 kB / 0.6514 GB, free: 1.742 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 2.165e-05/0.1197, allocations: 29.64 kB / 0.6514 GB, free: 1.707 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 5.154e-05/0.1198, allocations: 24.52 kB / 0.6515 GB, free: 1.684 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.838e-06/0.1198, allocations: 0.5 kB / 0.6515 GB, free: 1.684 MB / 446.1 MB Notification: Performance of FrontEnd: time 1.082e-06/0.1198, allocations: 0 / 0.6515 GB, free: 1.684 MB / 446.1 MB Notification: Performance of Transformations before backend: time 3.327e-06/0.1198, allocations: 1.062 kB / 0.6515 GB, free: 1.684 MB / 446.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 8 * Number of variables: 8 Notification: Performance of Generate backend data structure: time 0.0003951/0.1202, allocations: 365 kB / 0.6518 GB, free: 1.281 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.371e-05/0.1203, allocations: 8.031 kB / 0.6518 GB, free: 1.273 MB / 446.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 3.655e-05/0.1203, allocations: 41 kB / 0.6519 GB, free: 1.227 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 2.249e-05/0.1203, allocations: 0 / 0.6519 GB, free: 1.227 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.000103/0.1204, allocations: 178.8 kB / 0.652 GB, free: 1.012 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.113e-05/0.1205, allocations: 7.953 kB / 0.652 GB, free: 1.004 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 1.137e-05/0.1205, allocations: 7.922 kB / 0.652 GB, free: 0.9961 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001813/0.1207, allocations: 74.28 kB / 0.6521 GB, free: 0.918 MB / 446.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.883e-06/0.1207, allocations: 0.8438 kB / 0.6521 GB, free: 0.918 MB / 446.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.205e-06/0.1207, allocations: 4 kB / 0.6521 GB, free: 0.9141 MB / 446.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.787e-06/0.1207, allocations: 0.8438 kB / 0.6521 GB, free: 0.9141 MB / 446.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0001671/0.1209, allocations: 49.34 kB / 0.6522 GB, free: 0.8672 MB / 446.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0003815/0.1213, allocations: 290.8 kB / 0.6524 GB, free: 0.5352 MB / 446.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0002845/0.1216, allocations: 81.62 kB / 0.6525 GB, free: 460 kB / 446.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 8.61e-05/0.1217, allocations: 26.62 kB / 0.6526 GB, free: 432 kB / 446.1 MB Notification: Performance of preOpt evalFunc (simulation): time 1.105e-05/0.1217, allocations: 0 / 0.6526 GB, free: 432 kB / 446.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.097e-05/0.1217, allocations: 35.84 kB / 0.6526 GB, free: 388 kB / 446.1 MB Notification: Performance of pre-optimization done (n=3): time 9.61e-07/0.1217, allocations: 0 / 0.6526 GB, free: 388 kB / 446.1 MB Notification: Performance of matching and sorting (n=3): time 0.0003199/0.122, allocations: 96.16 kB / 0.6527 GB, free: 288 kB / 446.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 2.927e-05/0.1221, allocations: 52.03 kB / 0.6527 GB, free: 224 kB / 446.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 7.897e-05/0.1222, allocations: 126.7 kB / 0.6528 GB, free: 88 kB / 446.1 MB Notification: Performance of collectPreVariables (initialization): time 1.151e-05/0.1222, allocations: 29.7 kB / 0.6529 GB, free: 52 kB / 446.1 MB Notification: Performance of collectInitialEqns (initialization): time 5.16e-05/0.1222, allocations: 89.55 kB / 0.653 GB, free: 15.96 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 1.604e-05/0.1223, allocations: 11.75 kB / 0.653 GB, free: 15.95 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 3.697e-06/0.1223, allocations: 0 / 0.653 GB, free: 15.95 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 8.592e-05/0.1224, allocations: 323.6 kB / 0.6533 GB, free: 15.62 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 8.088e-05/0.1225, allocations: 25.67 kB / 0.6533 GB, free: 15.6 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 6.915e-05/0.1225, allocations: 19.98 kB / 0.6533 GB, free: 15.58 MB / 462.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 7.484e-05/0.1226, allocations: 17.17 kB / 0.6533 GB, free: 15.57 MB / 462.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.443e-06/0.1226, allocations: 1.531 kB / 0.6533 GB, free: 15.57 MB / 462.1 MB Notification: Performance of matching and sorting (n=3) (initialization): time 0.0001897/0.1228, allocations: 80.8 kB / 0.6534 GB, free: 15.48 MB / 462.1 MB Notification: Performance of prepare postOptimizeDAE: time 1.414e-05/0.1228, allocations: 4 kB / 0.6534 GB, free: 15.48 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.787e-06/0.1229, allocations: 3.938 kB / 0.6534 GB, free: 15.48 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 9.468e-06/0.1229, allocations: 0 / 0.6534 GB, free: 15.48 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 7.651e-05/0.1229, allocations: 11.98 kB / 0.6534 GB, free: 15.46 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.192e-06/0.123, allocations: 0 / 0.6534 GB, free: 15.46 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 5.081e-05/0.123, allocations: 20.86 kB / 0.6535 GB, free: 15.45 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.592e-06/0.123, allocations: 4 kB / 0.6535 GB, free: 15.44 MB / 462.1 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 (3): * Single equations (assignments): 3 * 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 6.41e-05/0.1231, allocations: 119.1 kB / 0.6536 GB, free: 15.32 MB / 462.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.327e-05/0.1231, allocations: 0 / 0.6536 GB, free: 15.32 MB / 462.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 3.114e-05/0.1232, allocations: 11.91 kB / 0.6536 GB, free: 15.3 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.683e-06/0.1232, allocations: 0 / 0.6536 GB, free: 15.3 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.517e-06/0.1232, allocations: 0 / 0.6536 GB, free: 15.3 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.314e-06/0.1232, allocations: 0 / 0.6536 GB, free: 15.3 MB / 462.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001501/0.1233, allocations: 181.7 kB / 0.6538 GB, free: 15.07 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.082e-06/0.1234, allocations: 0 / 0.6538 GB, free: 15.07 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 7.447e-05/0.1234, allocations: 19.98 kB / 0.6538 GB, free: 15.05 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 2.585e-06/0.1234, allocations: 336 / 0.6538 GB, free: 15.05 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.823e-06/0.1235, allocations: 3.938 kB / 0.6538 GB, free: 15.05 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.192e-06/0.1235, allocations: 0 / 0.6538 GB, free: 15.05 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.72e-07/0.1235, allocations: 0 / 0.6538 GB, free: 15.05 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002215/0.1237, allocations: 187.3 kB / 0.654 GB, free: 14.85 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 3.178e-05/0.1237, allocations: 85.02 kB / 0.654 GB, free: 14.75 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.49e-05/0.1238, allocations: 4 kB / 0.654 GB, free: 14.74 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 7.69e-05/0.1238, allocations: 4 kB / 0.6541 GB, free: 14.74 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 2.41e-05/0.1239, allocations: 7.984 kB / 0.6541 GB, free: 14.73 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.887e-06/0.1239, allocations: 0 / 0.6541 GB, free: 14.73 MB / 462.1 MB Notification: Performance of sorting global known variables: time 4.264e-05/0.1239, allocations: 91.27 kB / 0.6541 GB, free: 14.64 MB / 462.1 MB Notification: Performance of sort global known variables: time 1.21e-07/0.1239, allocations: 0 / 0.6541 GB, free: 14.64 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.0002122/0.1242, allocations: 12 kB / 0.6542 GB, free: 14.63 MB / 462.1 MB Notification: Model statistics after passing the back-end for simulation: * 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 simulation (3): * Single equations (assignments): 3 * 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 0.000423/0.1246, allocations: 0.7046 MB / 0.6548 GB, free: 13.9 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.0001869/0.1248, allocations: 51.97 kB / 0.6549 GB, free: 13.85 MB / 462.1 MB Notification: Performance of simCode: created event and clocks part: time 1.623e-06/0.1248, allocations: 0 / 0.6549 GB, free: 13.85 MB / 462.1 MB Notification: Performance of simCode: created simulation system equations: time 8.01e-05/0.1249, allocations: 19.98 kB / 0.6549 GB, free: 13.83 MB / 462.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002481/0.1251, allocations: 10.95 kB / 0.6549 GB, free: 13.82 MB / 462.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0008126/0.126, allocations: 0.5109 MB / 0.6554 GB, free: 13.27 MB / 462.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001795/0.1261, allocations: 0.6809 MB / 0.6561 GB, free: 12.56 MB / 462.1 MB Notification: Performance of simCode: alias equations: time 3.308e-05/0.1262, allocations: 7.984 kB / 0.6561 GB, free: 12.55 MB / 462.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 3.515e-05/0.1262, allocations: 15.44 kB / 0.6561 GB, free: 12.54 MB / 462.1 MB Notification: Performance of SimCode: time 3.6e-07/0.1262, allocations: 0 / 0.6561 GB, free: 12.54 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.009444/0.1357, allocations: 1.264 MB / 0.6573 GB, free: 11.43 MB / 462.1 MB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001607/0.1359, allocations: 215.2 kB / 0.6575 GB, free: 11.18 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 1.461/1.597, allocations: 3.938 kB / 0.6576 GB, free: 11.18 MB / 462.1 MB (rm -f BuildingSystems_BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality.pipe ; mkfifo BuildingSystems_BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality.pipe >> ../files/BuildingSystems_BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_BuildingSystems_BuildingSystems_Utilities_Diagnostics_Validation_CheckEquality_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 BuildingSystems_BuildingSystems_Utilities_Diagnostics_Validation_CheckEquality.fmu > BuildingSystems_BuildingSystems.Utilities.Diagnostics.Validation.CheckEquality.pipe 2>&1) Environment - environmentSimulation: