Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.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: translateModel(BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor") translateModel(BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008862/0.0008861, allocations: 98.92 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0008926/0.0008926, allocations: 177.3 kB / 15.94 MB, free: 228 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.145/1.145, allocations: 223.2 MB / 239.9 MB, free: 5.418 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.001638/0.001638, allocations: 270.7 kB / 291.2 MB, free: 1.977 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 0.7129/0.7129, allocations: 144.6 MB / 487 MB, free: 7.176 MB / 350.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003566/0.0003567, allocations: 15 kB / 0.5683 GB, free: 38.26 MB / 430.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1135/0.1139, allocations: 83.08 MB / 0.6494 GB, free: 3.562 MB / 446.1 MB Notification: Performance of NFInst.instantiate(BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor): time 0.001777/0.1157, allocations: 1.726 MB / 0.6511 GB, free: 1.828 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.001234/0.1169, allocations: 1.079 MB / 0.6522 GB, free: 0.7461 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 6.374e-05/0.117, allocations: 4 kB / 0.6522 GB, free: 0.7422 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0002437/0.1172, allocations: 96.19 kB / 0.6523 GB, free: 0.6484 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 7.734e-05/0.1173, allocations: 41.95 kB / 0.6523 GB, free: 0.6094 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.0004146/0.1177, allocations: 178.1 kB / 0.6525 GB, free: 448 kB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.0001656/0.1179, allocations: 171.7 kB / 0.6527 GB, free: 276 kB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0001189/0.118, allocations: 73.53 kB / 0.6527 GB, free: 200 kB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 6.633e-05/0.1181, allocations: 71.7 kB / 0.6528 GB, free: 128 kB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0001155/0.1182, allocations: 104.3 kB / 0.6529 GB, free: 24 kB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 2.319e-05/0.1183, allocations: 9.281 kB / 0.6529 GB, free: 16 kB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0002365/0.1185, allocations: 179.7 kB / 0.6531 GB, free: 15.84 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 6.362e-05/0.1186, allocations: 71.75 kB / 0.6531 GB, free: 15.77 MB / 462.1 MB Notification: Performance of NFVerifyModel.verify: time 5.087e-05/0.1186, allocations: 73.58 kB / 0.6532 GB, free: 15.69 MB / 462.1 MB Notification: Performance of NFConvertDAE.convert: time 0.0003264/0.119, allocations: 416.6 kB / 0.6536 GB, free: 15.29 MB / 462.1 MB Notification: Performance of FrontEnd - DAE generated: time 1.843e-06/0.119, allocations: 0 / 0.6536 GB, free: 15.29 MB / 462.1 MB Notification: Performance of FrontEnd: time 1.052e-06/0.119, allocations: 0 / 0.6536 GB, free: 15.29 MB / 462.1 MB Notification: Performance of Transformations before backend: time 3.717e-06/0.119, allocations: 0.625 kB / 0.6536 GB, free: 15.29 MB / 462.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 37 * Number of variables: 37 Notification: Performance of Generate backend data structure: time 0.0008314/0.1198, allocations: 0.7789 MB / 0.6544 GB, free: 14.42 MB / 462.1 MB Notification: Performance of prepare preOptimizeDAE: time 2.515e-05/0.1199, allocations: 8.031 kB / 0.6544 GB, free: 14.41 MB / 462.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 5.534e-05/0.1199, allocations: 31.62 kB / 0.6544 GB, free: 14.38 MB / 462.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003121/0.1202, allocations: 315.2 kB / 0.6547 GB, free: 14.04 MB / 462.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.433e-05/0.1203, allocations: 12.28 kB / 0.6547 GB, free: 14.02 MB / 462.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 2.797e-05/0.1203, allocations: 24.61 kB / 0.6547 GB, free: 14 MB / 462.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005078/0.1208, allocations: 306.8 kB / 0.655 GB, free: 13.7 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.843e-06/0.1208, allocations: 0 / 0.655 GB, free: 13.7 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.965e-05/0.1209, allocations: 8 kB / 0.655 GB, free: 13.69 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.129e-06/0.1209, allocations: 5.281 kB / 0.655 GB, free: 13.69 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005829/0.1215, allocations: 303.4 kB / 0.6553 GB, free: 13.4 MB / 462.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0007834/0.1222, allocations: 0.6781 MB / 0.656 GB, free: 12.67 MB / 462.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0004579/0.1227, allocations: 246.6 kB / 0.6562 GB, free: 12.42 MB / 462.1 MB Notification: Performance of preOpt evalFunc (simulation): time 9.117e-06/0.1227, allocations: 3.938 kB / 0.6562 GB, free: 12.42 MB / 462.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.29e-05/0.1228, allocations: 30.56 kB / 0.6563 GB, free: 12.38 MB / 462.1 MB Notification: Performance of pre-optimization done (n=14): time 1.242e-06/0.1228, allocations: 7.938 kB / 0.6563 GB, free: 12.37 MB / 462.1 MB Notification: Performance of matching and sorting (n=14): time 0.001254/0.124, allocations: 0.9539 MB / 0.6572 GB, free: 11.34 MB / 462.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 5.34e-05/0.1241, allocations: 136.5 kB / 0.6573 GB, free: 11.18 MB / 462.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003208/0.1244, allocations: 376.4 kB / 0.6577 GB, free: 10.8 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 2.123e-05/0.1245, allocations: 29.7 kB / 0.6577 GB, free: 10.77 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 9.018e-05/0.1245, allocations: 168.3 kB / 0.6579 GB, free: 10.6 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 3.378e-05/0.1246, allocations: 35.45 kB / 0.6579 GB, free: 10.56 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 1.395e-05/0.1246, allocations: 8 kB / 0.6579 GB, free: 10.55 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 9.502e-05/0.1247, allocations: 342.8 kB / 0.6583 GB, free: 10.21 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003878/0.1251, allocations: 255.8 kB / 0.6585 GB, free: 9.961 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003749/0.1255, allocations: 251.9 kB / 0.6587 GB, free: 9.715 MB / 462.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004333/0.1259, allocations: 422.1 kB / 0.6591 GB, free: 9.266 MB / 462.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.895e-06/0.1259, allocations: 0 / 0.6591 GB, free: 9.266 MB / 462.1 MB Notification: Performance of matching and sorting (n=23) (initialization): time 0.0009415/0.1269, allocations: 0.7671 MB / 0.6599 GB, free: 8.457 MB / 462.1 MB Notification: Performance of prepare postOptimizeDAE: time 8.148e-05/0.127, allocations: 187.4 kB / 0.6601 GB, free: 8.238 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.889e-06/0.127, allocations: 4 kB / 0.6601 GB, free: 8.234 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 7.854e-06/0.127, allocations: 0 / 0.6601 GB, free: 8.234 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001568/0.1272, allocations: 35.97 kB / 0.6601 GB, free: 8.199 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 4.128e-06/0.1272, allocations: 0 / 0.6601 GB, free: 8.199 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001979/0.1274, allocations: 63.66 kB / 0.6602 GB, free: 8.137 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.995e-05/0.1274, allocations: 4 kB / 0.6602 GB, free: 8.133 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: 3 (mod.temDif_mod.i,mod.watFlo_mod.i,mod.airFlo_mod.i) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (14): * Single equations (assignments): 8 * Array equations: 0 * Algorithm blocks: 6 * 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 0.0001709/0.1276, allocations: 266.8 kB / 0.6604 GB, free: 7.844 MB / 462.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 4.561e-05/0.1276, allocations: 23.72 kB / 0.6604 GB, free: 7.82 MB / 462.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 3.941e-05/0.1277, allocations: 30.94 kB / 0.6605 GB, free: 7.789 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.623e-06/0.1277, allocations: 4 kB / 0.6605 GB, free: 7.785 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.116e-06/0.1277, allocations: 0 / 0.6605 GB, free: 7.785 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.275e-06/0.1277, allocations: 0 / 0.6605 GB, free: 7.785 MB / 462.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002753/0.128, allocations: 353.4 kB / 0.6608 GB, free: 7.391 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.031e-06/0.128, allocations: 0 / 0.6608 GB, free: 7.391 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001524/0.1281, allocations: 39.97 kB / 0.6609 GB, free: 7.352 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 1.794e-06/0.1282, allocations: 0 / 0.6609 GB, free: 7.352 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.655e-05/0.1282, allocations: 8 kB / 0.6609 GB, free: 7.344 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.212e-06/0.1282, allocations: 0 / 0.6609 GB, free: 7.344 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.01e-07/0.1282, allocations: 0 / 0.6609 GB, free: 7.344 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008213/0.129, allocations: 0.6561 MB / 0.6615 GB, free: 6.652 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 7.154e-05/0.1291, allocations: 120.7 kB / 0.6616 GB, free: 6.516 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.853e-05/0.1291, allocations: 4 kB / 0.6616 GB, free: 6.512 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002104/0.1294, allocations: 39.97 kB / 0.6617 GB, free: 6.473 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.879e-05/0.1294, allocations: 31.94 kB / 0.6617 GB, free: 6.441 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.528e-05/0.1295, allocations: 4 kB / 0.6617 GB, free: 6.438 MB / 462.1 MB Notification: Performance of sorting global known variables: time 0.0002206/0.1297, allocations: 275 kB / 0.662 GB, free: 6.168 MB / 462.1 MB Notification: Performance of sort global known variables: time 1.41e-07/0.1297, allocations: 0 / 0.662 GB, free: 6.168 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.0003279/0.13, allocations: 104 kB / 0.6621 GB, free: 6.066 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: 3 (mod.temDif_mod.i,mod.watFlo_mod.i,mod.airFlo_mod.i) * Number of discrete states: 3 (mod.airFlo_mod.i,mod.watFlo_mod.i,mod.temDif_mod.i) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (11): * Single equations (assignments): 8 * Array equations: 0 * Algorithm blocks: 3 * 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 0.0002072/0.1302, allocations: 155.2 kB / 0.6622 GB, free: 5.906 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.0009693/0.1312, allocations: 0.8714 MB / 0.6631 GB, free: 4.961 MB / 462.1 MB Notification: Performance of simCode: created event and clocks part: time 1.553e-06/0.1312, allocations: 0 / 0.6631 GB, free: 4.961 MB / 462.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0004382/0.1317, allocations: 390 kB / 0.6634 GB, free: 4.543 MB / 462.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000275/0.132, allocations: 61.36 kB / 0.6635 GB, free: 4.484 MB / 462.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0007806/0.1327, allocations: 0.7184 MB / 0.6642 GB, free: 3.738 MB / 462.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002683/0.133, allocations: 0.7948 MB / 0.665 GB, free: 2.918 MB / 462.1 MB Notification: Performance of simCode: alias equations: time 6.355e-05/0.1331, allocations: 17.95 kB / 0.665 GB, free: 2.902 MB / 462.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 3.873e-05/0.1331, allocations: 23.44 kB / 0.665 GB, free: 2.879 MB / 462.1 MB Notification: Performance of SimCode: time 2.2e-07/0.1331, allocations: 0 / 0.665 GB, free: 2.879 MB / 462.1 MB Notification: Performance of Templates: time 0.007253/0.1404, allocations: 5.274 MB / 0.6702 GB, free: 13.69 MB / 478.1 MB make -j1 -f BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.makefile Environment - environmentSimulation: (rm -f BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.pipe ; mkfifo BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.pipe >> ../files/BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.sim & ./BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor -abortSlowSimulation -alarm=480 -lv LOG_STATS > BuildingSystems_BuildingSystems.Fluid.HeatExchangers.ActiveBeams.BaseClasses.Examples.ModificationFactor.pipe 2>&1) Environment - environmentSimulation: