Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T.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 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/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 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(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T,fileNamePrefix="Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_T",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T,fileNamePrefix="Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_T",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 0.0007633/0.0007633, allocations: 84.38 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 0.0008115/0.0008115, 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 3.2.3+maint.om/package.mo): time 1.289/1.289, allocations: 205.4 MB / 222.1 MB, free: 5.637 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.519/1.519, allocations: 292.7 MB / 0.5499 GB, free: 14.54 MB / 462.1 MB 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: Performance of FrontEnd - loaded program: time 0.0004812/0.0004812, allocations: 16.97 kB / 0.6739 GB, free: 26.18 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2278/0.2283, allocations: 116.3 MB / 0.7875 GB, free: 11.76 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T): time 0.001827/0.2301, allocations: 1.555 MB / 0.789 GB, free: 10.2 MB / 0.6075 GB Notification: Performance of NFInst.instExpressions: time 0.001594/0.2317, allocations: 1.265 MB / 0.7902 GB, free: 8.922 MB / 0.6075 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001722/0.2319, allocations: 12 kB / 0.7902 GB, free: 8.91 MB / 0.6075 GB Notification: Performance of NFTyping.typeComponents: time 5.942e-05/0.232, allocations: 39.52 kB / 0.7903 GB, free: 8.871 MB / 0.6075 GB Notification: Performance of NFTyping.typeBindings: time 0.0001577/0.2322, allocations: 39.66 kB / 0.7903 GB, free: 8.832 MB / 0.6075 GB Notification: Performance of NFTyping.typeClassSections: time 0.0003009/0.2325, allocations: 175.7 kB / 0.7905 GB, free: 8.66 MB / 0.6075 GB Notification: Performance of NFFlatten.flatten: time 0.0004518/0.2329, allocations: 0.5711 MB / 0.791 GB, free: 8.09 MB / 0.6075 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003158/0.2333, allocations: 239.2 kB / 0.7913 GB, free: 7.852 MB / 0.6075 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0001262/0.2334, allocations: 151.2 kB / 0.7914 GB, free: 7.703 MB / 0.6075 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001687/0.2336, allocations: 194.8 kB / 0.7916 GB, free: 7.512 MB / 0.6075 GB Notification: Performance of NFPackage.collectConstants: time 3.944e-05/0.2336, allocations: 16 kB / 0.7916 GB, free: 7.496 MB / 0.6075 GB Notification: Performance of NFFlatten.collectFunctions: time 3.686e-05/0.2337, allocations: 24 kB / 0.7916 GB, free: 7.473 MB / 0.6075 GB Notification: Performance of NFScalarize.scalarize: time 6.171e-05/0.2337, allocations: 83.61 kB / 0.7917 GB, free: 7.391 MB / 0.6075 GB Notification: Performance of NFVerifyModel.verify: time 7.069e-05/0.2338, allocations: 113.3 kB / 0.7918 GB, free: 7.273 MB / 0.6075 GB Notification: Performance of NFConvertDAE.convert: time 0.0004863/0.2343, allocations: 0.7442 MB / 0.7926 GB, free: 6.527 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 3.947e-06/0.2343, allocations: 0 / 0.7926 GB, free: 6.527 MB / 0.6075 GB Notification: Performance of FrontEnd: time 1.613e-06/0.2343, allocations: 0 / 0.7926 GB, free: 6.527 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 6.011e-06/0.2343, allocations: 0 / 0.7926 GB, free: 6.527 MB / 0.6075 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 141 * Number of variables: 141 Notification: Performance of Generate backend data structure: time 0.0011/0.2354, allocations: 0.8186 MB / 0.7934 GB, free: 5.656 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 3.189e-05/0.2355, allocations: 8.031 kB / 0.7934 GB, free: 5.648 MB / 0.6075 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.096e-05/0.2356, allocations: 98.52 kB / 0.7935 GB, free: 5.543 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 8.293e-05/0.2357, allocations: 63.25 kB / 0.7935 GB, free: 5.48 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005529/0.2362, allocations: 471.6 kB / 0.794 GB, free: 4.977 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.192e-05/0.2363, allocations: 37.31 kB / 0.794 GB, free: 4.941 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.731e-05/0.2363, allocations: 60 kB / 0.7941 GB, free: 4.883 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0008083/0.2371, allocations: 0.5218 MB / 0.7946 GB, free: 4.352 MB / 0.6075 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.296e-05/0.2372, allocations: 4 kB / 0.7946 GB, free: 4.348 MB / 0.6075 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.969e-05/0.2372, allocations: 20 kB / 0.7946 GB, free: 4.328 MB / 0.6075 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.072e-05/0.2372, allocations: 12 kB / 0.7946 GB, free: 4.316 MB / 0.6075 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0008235/0.2381, allocations: 497 kB / 0.7951 GB, free: 3.832 MB / 0.6075 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001904/0.24, allocations: 1.458 MB / 0.7965 GB, free: 2.32 MB / 0.6075 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008324/0.2408, allocations: 442.6 kB / 0.7969 GB, free: 1.875 MB / 0.6075 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000311/0.2411, allocations: 180.8 kB / 0.7971 GB, free: 1.695 MB / 0.6075 GB Notification: Performance of preOpt evalFunc (simulation): time 3.154e-05/0.2412, allocations: 7.984 kB / 0.7971 GB, free: 1.688 MB / 0.6075 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.006e-05/0.2412, allocations: 34.56 kB / 0.7971 GB, free: 1.645 MB / 0.6075 GB Notification: Performance of pre-optimization done (n=37): time 1.383e-06/0.2412, allocations: 0 / 0.7971 GB, free: 1.645 MB / 0.6075 GB Notification: Performance of matching and sorting (n=37): time 0.0009518/0.2422, allocations: 0.5079 MB / 0.7976 GB, free: 1.129 MB / 0.6075 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.787e-05/0.2422, allocations: 55.41 kB / 0.7977 GB, free: 1.062 MB / 0.6075 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004328/0.2426, allocations: 470 kB / 0.7981 GB, free: 0.5938 MB / 0.6075 GB Notification: Performance of collectPreVariables (initialization): time 2.312e-05/0.2427, allocations: 33.7 kB / 0.7982 GB, free: 0.5547 MB / 0.6075 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001634/0.2428, allocations: 299.6 kB / 0.7985 GB, free: 264 kB / 0.6075 GB Notification: Performance of collectInitialBindings (initialization): time 7.321e-05/0.2429, allocations: 126.3 kB / 0.7986 GB, free: 136 kB / 0.6075 GB Notification: Performance of simplifyInitialFunctions (initialization): time 1.933e-05/0.2429, allocations: 12 kB / 0.7986 GB, free: 124 kB / 0.6075 GB Notification: Performance of setup shared object (initialization): time 0.0001225/0.2431, allocations: 362.8 kB / 0.7989 GB, free: 15.76 MB / 0.6231 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002954/0.2434, allocations: 145.5 kB / 0.7991 GB, free: 15.62 MB / 0.6231 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003633/0.2437, allocations: 280.3 kB / 0.7993 GB, free: 15.29 MB / 0.6231 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000332/0.2441, allocations: 183.3 kB / 0.7995 GB, free: 15.11 MB / 0.6231 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.979e-06/0.2441, allocations: 4 kB / 0.7995 GB, free: 15.11 MB / 0.6231 GB Notification: Performance of matching and sorting (n=58) (initialization): time 0.0008063/0.2449, allocations: 0.5216 MB / 0.8 GB, free: 14.59 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 9.107e-05/0.245, allocations: 192.3 kB / 0.8002 GB, free: 14.35 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.963e-06/0.245, allocations: 4 kB / 0.8002 GB, free: 14.35 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.544e-05/0.245, allocations: 8 kB / 0.8002 GB, free: 14.34 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003808/0.2454, allocations: 111.9 kB / 0.8003 GB, free: 14.23 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.889e-06/0.2454, allocations: 7.938 kB / 0.8003 GB, free: 14.22 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002686/0.2457, allocations: 83.25 kB / 0.8004 GB, free: 14.14 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.019e-05/0.2458, allocations: 16 kB / 0.8004 GB, free: 14.12 MB / 0.6231 GB Notification: Performance of prepare postOptimizeDAE: time 5.811e-06/0.2458, allocations: 4 kB / 0.8004 GB, free: 14.12 MB / 0.6231 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0005999/0.2464, allocations: 407.4 kB / 0.8008 GB, free: 13.72 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.418e-06/0.2464, allocations: 4 kB / 0.8008 GB, free: 13.72 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.903e-06/0.2464, allocations: 15.89 kB / 0.8008 GB, free: 13.7 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003416/0.2468, allocations: 108.2 kB / 0.8009 GB, free: 13.6 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.614e-06/0.2468, allocations: 15.98 kB / 0.801 GB, free: 13.58 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002029/0.247, allocations: 59.45 kB / 0.801 GB, free: 13.52 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.923e-05/0.247, allocations: 20 kB / 0.801 GB, free: 13.5 MB / 0.6231 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 15 * 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 (58): * Single equations (assignments): 58 * 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 0.0001914/0.2472, allocations: 249 kB / 0.8013 GB, free: 13.25 MB / 0.6231 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.368e-05/0.2473, allocations: 55.34 kB / 0.8013 GB, free: 13.2 MB / 0.6231 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0007453/0.248, allocations: 411.1 kB / 0.8017 GB, free: 12.79 MB / 0.6231 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.722e-06/0.248, allocations: 11.94 kB / 0.8017 GB, free: 12.78 MB / 0.6231 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.137e-06/0.2481, allocations: 4 kB / 0.8017 GB, free: 12.77 MB / 0.6231 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.128e-06/0.2481, allocations: 0 / 0.8017 GB, free: 12.77 MB / 0.6231 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001619/0.2497, allocations: 1.249 MB / 0.803 GB, free: 11.41 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.979e-06/0.2497, allocations: 4 kB / 0.803 GB, free: 11.4 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002791/0.25, allocations: 87.83 kB / 0.803 GB, free: 11.32 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 6.091e-06/0.25, allocations: 4 kB / 0.803 GB, free: 11.31 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.329e-05/0.25, allocations: 12 kB / 0.8031 GB, free: 11.3 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 6.853e-06/0.25, allocations: 11.95 kB / 0.8031 GB, free: 11.29 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.33e-06/0.2501, allocations: 7.938 kB / 0.8031 GB, free: 11.28 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007364/0.2508, allocations: 0.6165 MB / 0.8037 GB, free: 10.59 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 8.468e-05/0.2509, allocations: 140.4 kB / 0.8038 GB, free: 10.43 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.74e-05/0.2509, allocations: 12 kB / 0.8038 GB, free: 10.42 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002402/0.2512, allocations: 31.92 kB / 0.8038 GB, free: 10.39 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.287e-05/0.2513, allocations: 39.77 kB / 0.8039 GB, free: 10.35 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.06e-05/0.2513, allocations: 20 kB / 0.8039 GB, free: 10.33 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.000302/0.2516, allocations: 318.9 kB / 0.8042 GB, free: 10.02 MB / 0.6231 GB Notification: Performance of sort global known variables: time 1.5e-07/0.2516, allocations: 11.88 kB / 0.8042 GB, free: 10.01 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.0005497/0.2522, allocations: 155.5 kB / 0.8044 GB, free: 9.859 MB / 0.6231 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 21 * 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 (37): * Single equations (assignments): 37 * 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 0.001075/0.2532, allocations: 1.174 MB / 0.8055 GB, free: 8.598 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.001032/0.2543, allocations: 0.596 MB / 0.8061 GB, free: 8.004 MB / 0.6231 GB Notification: Performance of simCode: created event and clocks part: time 2.685e-06/0.2543, allocations: 0 / 0.8061 GB, free: 8.004 MB / 0.6231 GB Notification: Performance of simCode: created simulation system equations: time 0.0003503/0.2547, allocations: 189.6 kB / 0.8063 GB, free: 7.82 MB / 0.6231 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000538/0.2552, allocations: 74.39 kB / 0.8064 GB, free: 7.746 MB / 0.6231 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004808/0.26, allocations: 2.943 MB / 0.8092 GB, free: 4.648 MB / 0.6231 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004158/0.2604, allocations: 0.8474 MB / 0.8101 GB, free: 3.77 MB / 0.6231 GB Notification: Performance of simCode: alias equations: time 0.000324/0.2608, allocations: 76.38 kB / 0.8101 GB, free: 3.695 MB / 0.6231 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002497/0.261, allocations: 183.4 kB / 0.8103 GB, free: 3.52 MB / 0.6231 GB Notification: Performance of SimCode: time 2.11e-07/0.261, allocations: 0 / 0.8103 GB, free: 3.52 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01787/0.2789, allocations: 7.946 MB / 0.8181 GB, free: 11.82 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001885/0.2791, allocations: 229.7 kB / 0.8183 GB, free: 11.58 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 1.595/1.874, allocations: 0 / 0.8183 GB, free: 11.58 MB / 0.6387 GB (rm -f Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T.pipe ; mkfifo Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T.pipe ; head -c 1048576 < Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T.pipe >> ../files/Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_T_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Controls_OBC_ASHRAE_G36_PR1_AHUs_SingleZone_VAV_SetPoints_Validation_Supply_T.fmu > Buildings_8_Buildings.Controls.OBC.ASHRAE.G36_PR1.AHUs.SingleZone.VAV.SetPoints.Validation.Supply_T.pipe 2>&1) Environment - environmentSimulation: