Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.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/Annex60 1.0.0/package.mo", uses=false) Using package Annex60 with version 1.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Annex60 1.0.0/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: translateModel(Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2") translateModel(Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001469/0.001469, allocations: 99.7 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 0.001694/0.001694, 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 3.2.3+maint.om/package.mo): time 1.536/1.536, allocations: 205.4 MB / 222.1 MB, free: 5.758 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Annex60 1.0.0/package.mo): time 0.4342/0.4342, allocations: 54.98 MB / 325.3 MB, free: 0.75 MB / 254.1 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: Annex60 requested package Modelica of version 3.2.2. Modelica 3.2.3 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0006034/0.0006036, allocations: 16 kB / 396.6 MB, free: 11.77 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3749/0.3756, allocations: 60.71 MB / 457.3 MB, free: 38.03 MB / 382.1 MB Notification: Performance of NFInst.instantiate(Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2): time 0.03142/0.407, allocations: 38.86 MB / 496.2 MB, free: 14.64 MB / 382.1 MB Notification: Performance of NFInst.instExpressions: time 0.01389/0.421, allocations: 10.17 MB / 0.4945 GB, free: 7.469 MB / 382.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002343/0.4233, allocations: 50.78 kB / 0.4945 GB, free: 7.445 MB / 382.1 MB Notification: Performance of NFTyping.typeComponents: time 0.002265/0.4256, allocations: 0.6831 MB / 0.4952 GB, free: 7.055 MB / 382.1 MB Notification: Performance of NFTyping.typeBindings: time 0.007004/0.4327, allocations: 2.093 MB / 0.4972 GB, free: 5.711 MB / 382.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003786/0.4365, allocations: 1.015 MB / 0.4982 GB, free: 5.227 MB / 382.1 MB Notification: Performance of NFFlatten.flatten: time 0.01057/0.447, allocations: 6.923 MB / 0.505 GB, free: 1.602 MB / 382.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.006576/0.4537, allocations: 3.647 MB / 0.5085 GB, free: 412 kB / 382.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.007502/0.4612, allocations: 2.713 MB / 0.5112 GB, free: 15.21 MB / 398.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.006295/0.4675, allocations: 2.367 MB / 0.5135 GB, free: 14.26 MB / 398.1 MB Notification: Performance of NFPackage.collectConstants: time 0.001334/0.4689, allocations: 177.3 kB / 0.5137 GB, free: 14.26 MB / 398.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.005198/0.4741, allocations: 1.011 MB / 0.5147 GB, free: 14.04 MB / 398.1 MB Notification: Performance of NFScalarize.scalarize: time 0.001905/0.476, allocations: 0.8956 MB / 0.5155 GB, free: 13.63 MB / 398.1 MB Notification: Performance of NFVerifyModel.verify: time 0.002734/0.4788, allocations: 0.9083 MB / 0.5164 GB, free: 13.14 MB / 398.1 MB Notification: Performance of NFConvertDAE.convert: time 0.009251/0.4881, allocations: 5.91 MB / 0.5222 GB, free: 9.422 MB / 398.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.028e-06/0.4881, allocations: 1.281 kB / 0.5222 GB, free: 9.422 MB / 398.1 MB Notification: Performance of FrontEnd: time 2.655e-06/0.4881, allocations: 0 / 0.5222 GB, free: 9.422 MB / 398.1 MB Notification: Performance of Transformations before backend: time 0.0002695/0.4884, allocations: 0 / 0.5222 GB, free: 9.422 MB / 398.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 728 * Number of variables: 728 Notification: Performance of Generate backend data structure: time 0.01348/0.5019, allocations: 4.283 MB / 0.5264 GB, free: 5.734 MB / 398.1 MB Notification: Performance of prepare preOptimizeDAE: time 6.012e-05/0.5019, allocations: 8.031 kB / 0.5264 GB, free: 5.727 MB / 398.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008731/0.5107, allocations: 1.212 MB / 0.5276 GB, free: 4.508 MB / 398.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01221/0.5229, allocations: 4.284 MB / 0.5317 GB, free: 156 kB / 398.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002556/0.5232, allocations: 221.6 kB / 0.532 GB, free: 15.93 MB / 414.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001079/0.5243, allocations: 296 kB / 0.5322 GB, free: 15.64 MB / 414.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.008426/0.5328, allocations: 4.395 MB / 0.5365 GB, free: 11.02 MB / 414.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.421e-05/0.5329, allocations: 11.84 kB / 0.5365 GB, free: 11.01 MB / 414.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003365/0.5332, allocations: 124 kB / 0.5367 GB, free: 10.89 MB / 414.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00014/0.5334, allocations: 137.1 kB / 0.5368 GB, free: 10.75 MB / 414.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.007072/0.5404, allocations: 3.763 MB / 0.5405 GB, free: 6.973 MB / 414.1 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 0.03465/0.5751, allocations: 21.4 MB / 0.5614 GB, free: 212 kB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.00474/0.5799, allocations: 2.476 MB / 0.5638 GB, free: 13.73 MB / 446.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0003423/0.5803, allocations: 215.5 kB / 0.564 GB, free: 13.48 MB / 446.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.74e-05/0.5804, allocations: 59.83 kB / 0.5641 GB, free: 13.42 MB / 446.1 MB Notification: Performance of pre-optimization done (n=166): time 3.236e-06/0.5804, allocations: 3.938 kB / 0.5641 GB, free: 13.41 MB / 446.1 MB Notification: Performance of matching and sorting (n=187): time 0.03321/0.6136, allocations: 10.12 MB / 0.5739 GB, free: 3.168 MB / 446.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 7.645e-05/0.6137, allocations: 124.8 kB / 0.5741 GB, free: 3.02 MB / 446.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005114/0.6188, allocations: 3.32 MB / 0.5773 GB, free: 15.7 MB / 462.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0006467/0.6195, allocations: 69.7 kB / 0.5774 GB, free: 15.62 MB / 462.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.001486/0.621, allocations: 1.692 MB / 0.579 GB, free: 13.91 MB / 462.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0009489/0.6219, allocations: 0.6392 MB / 0.5796 GB, free: 13.26 MB / 462.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002003/0.6222, allocations: 48 kB / 0.5797 GB, free: 13.21 MB / 462.1 MB Notification: Performance of setup shared object (initialization): time 0.0002171/0.6224, allocations: 402.9 kB / 0.5801 GB, free: 12.82 MB / 462.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003345/0.6257, allocations: 1.5 MB / 0.5815 GB, free: 11.31 MB / 462.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003903/0.6297, allocations: 2.124 MB / 0.5836 GB, free: 8.93 MB / 462.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.003554/0.6332, allocations: 1.825 MB / 0.5854 GB, free: 7.105 MB / 462.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.208e-05/0.6333, allocations: 4 kB / 0.5854 GB, free: 7.102 MB / 462.1 MB Notification: Performance of matching and sorting (n=311) (initialization): time 0.01483/0.6481, allocations: 5.301 MB / 0.5906 GB, free: 1.766 MB / 462.1 MB Notification: Performance of prepare postOptimizeDAE: time 0.003/0.6511, allocations: 6.688 MB / 0.5971 GB, free: 10.62 MB / 478.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.375e-05/0.6512, allocations: 12 kB / 0.5971 GB, free: 10.61 MB / 478.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01716/0.6684, allocations: 3.096 MB / 0.6001 GB, free: 7.496 MB / 478.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004867/0.6733, allocations: 0.9284 MB / 0.6011 GB, free: 6.566 MB / 478.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02142/0.6947, allocations: 15.41 MB / 0.6161 GB, free: 6.148 MB / 494.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005547/0.7003, allocations: 367.2 kB / 0.6165 GB, free: 5.789 MB / 494.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000459/0.7008, allocations: 115.9 kB / 0.6166 GB, free: 5.676 MB / 494.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.03e-05/0.7008, allocations: 7.984 kB / 0.6166 GB, free: 5.668 MB / 494.1 MB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01396/0.7148, allocations: 5.09 MB / 0.6215 GB, free: 0.5508 MB / 494.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.239e-05/0.7148, allocations: 16 kB / 0.6216 GB, free: 0.5352 MB / 494.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01556/0.7304, allocations: 3.043 MB / 0.6245 GB, free: 13.46 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002434/0.7329, allocations: 491.2 kB / 0.625 GB, free: 12.98 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01487/0.7478, allocations: 11.9 MB / 0.6366 GB, free: 344 kB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004741/0.7526, allocations: 339.3 kB / 0.6369 GB, free: 4 kB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.247/0.9996, allocations: 109.5 kB / 0.637 GB, free: 144.8 MB / 0.4981 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 70 * 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 (237): * Single equations (assignments): 227 * 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: 8 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 5 {(1,100.0%) 2,(1,100.0%) 2,(1,100.0%) 2,(1,100.0%) 2,(1,100.0%) 2} * Non-linear torn systems: 3 {5 6,5 40,4 7} Notification: Performance of prepare postOptimizeDAE: time 0.003385/1.003, allocations: 1.467 MB / 0.6385 GB, free: 144.6 MB / 0.4981 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001383/1.004, allocations: 322.1 kB / 0.6388 GB, free: 144.6 MB / 0.4981 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.005607/1.01, allocations: 3.556 MB / 0.6423 GB, free: 144.5 MB / 0.4981 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.08e-05/1.01, allocations: 24.27 kB / 0.6423 GB, free: 144.5 MB / 0.4981 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.273e-06/1.01, allocations: 3.156 kB / 0.6423 GB, free: 144.5 MB / 0.4981 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.003967/1.014, allocations: 2.925 MB / 0.6451 GB, free: 144.3 MB / 0.4981 GB 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 postOpt removeSimpleEquations (simulation): time 0.01242/1.027, allocations: 7.35 MB / 0.6523 GB, free: 142.5 MB / 0.4981 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.154e-05/1.027, allocations: 3.031 kB / 0.6523 GB, free: 142.5 MB / 0.4981 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003436/1.03, allocations: 0.7369 MB / 0.653 GB, free: 142.5 MB / 0.4981 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.002684/1.033, allocations: 0.8653 MB / 0.6539 GB, free: 142.3 MB / 0.4981 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001552/1.033, allocations: 57.73 kB / 0.6539 GB, free: 142.3 MB / 0.4981 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.009719/1.043, allocations: 12.45 MB / 0.6661 GB, free: 131.6 MB / 0.4981 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.282e-06/1.043, allocations: 5.75 kB / 0.6661 GB, free: 131.6 MB / 0.4981 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.008313/1.051, allocations: 5.225 MB / 0.6712 GB, free: 129.4 MB / 0.4981 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002533/1.054, allocations: 0.8233 MB / 0.672 GB, free: 129.1 MB / 0.4981 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005617/1.054, allocations: 56.22 kB / 0.6721 GB, free: 129.1 MB / 0.4981 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002211/1.056, allocations: 251 kB / 0.6723 GB, free: 129.1 MB / 0.4981 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003312/1.057, allocations: 136.9 kB / 0.6724 GB, free: 129 MB / 0.4981 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001683/1.057, allocations: 79.44 kB / 0.6725 GB, free: 129 MB / 0.4981 GB Notification: Performance of sorting global known variables: time 0.003773/1.061, allocations: 2.317 MB / 0.6748 GB, free: 128.2 MB / 0.4981 GB Notification: Performance of sort global known variables: time 2.7e-07/1.061, allocations: 5.281 kB / 0.6748 GB, free: 128.2 MB / 0.4981 GB Notification: Performance of remove unused functions: time 0.007127/1.068, allocations: 1.9 MB / 0.6766 GB, free: 128.1 MB / 0.4981 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 12 * Number of states: 5 (rad1.vol[1].dynBal.medium.T,rad1.vol[2].dynBal.medium.T,rad1.vol[3].dynBal.medium.T,rad1.vol[4].dynBal.medium.T,rad1.vol[5].dynBal.medium.T) * 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 (153): * Single equations (assignments): 140 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * When equations: 0 * If-equations: 0 * Equation systems (linear and non-linear blocks): 2 * Torn equation systems: 6 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details: * Constant Jacobian: 0 * Linear Jacobian (size,density): 0 * Non-linear Jacobian: 2 {1,1} * Without analytic Jacobian: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 5 {(1,100.0%) 2,(1,100.0%) 2,(1,100.0%) 2,(1,100.0%) 2,(1,100.0%) 2} * Non-linear torn systems: 1 {5 50} Notification: Performance of Backend phase and start with SimCode phase: time 0.001136/1.069, allocations: 434.8 kB / 0.6771 GB, free: 127.9 MB / 0.4981 GB Notification: Performance of simCode: created initialization part: time 0.02248/1.091, allocations: 7.911 MB / 0.6848 GB, free: 125.1 MB / 0.4981 GB Notification: Performance of simCode: created event and clocks part: time 1.393e-05/1.091, allocations: 1.688 kB / 0.6848 GB, free: 125.1 MB / 0.4981 GB Notification: Performance of simCode: created simulation system equations: time 0.008041/1.1, allocations: 2.734 MB / 0.6875 GB, free: 124.1 MB / 0.4981 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.009266/1.109, allocations: 1.863 MB / 0.6893 GB, free: 123.8 MB / 0.4981 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01236/1.121, allocations: 9.491 MB / 0.6985 GB, free: 118.5 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002007/1.123, allocations: 3.023 MB / 0.7015 GB, free: 116.2 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.004686/1.128, allocations: 1.331 MB / 0.7028 GB, free: 115.3 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006731/1.129, allocations: 253.6 kB / 0.703 GB, free: 115.1 MB / 0.4981 GB Notification: Performance of SimCode: time 1.784e-06/1.129, allocations: 0 / 0.703 GB, free: 115.1 MB / 0.4981 GB Notification: Performance of Templates: time 0.11/1.239, allocations: 88.95 MB / 0.7899 GB, free: 27.66 MB / 0.4981 GB make -j1 -f Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.makefile Environment - environmentSimulation: (rm -f Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe ; mkfifo Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe ; head -c 1048576 < Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe >> ../files/Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.sim & ./Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2 -abortSlowSimulation -alarm=480 -lv LOG_STATS > Annex60_1.0.0_Annex60.Fluid.HeatExchangers.Radiators.Examples.RadiatorEN442_2.pipe 2>&1) Environment - environmentSimulation: