Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.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 7.0.3-maint.7.0.x/package.mo", uses=false) Using package Buildings with version 7.0.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.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: translateModel(Buildings.Fluid.Movers.Examples.MoverStages,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages") translateModel(Buildings.Fluid.Movers.Examples.MoverStages,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001288/0.001288, allocations: 91.77 kB / 15.36 MB, free: 0.7383 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.01116/0.01116, allocations: 172.4 kB / 16.26 MB, free: 6.676 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.671/1.671, allocations: 205.4 MB / 222.5 MB, free: 5.562 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 7.0.3-maint.7.0.x/package.mo): time 1.652/1.652, allocations: 252 MB / 0.5105 GB, free: 4.648 MB / 414.1 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 0.0005422/0.0005422, allocations: 12 kB / 0.6249 GB, free: 0.7305 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5308/0.5313, allocations: 106.3 MB / 0.7287 GB, free: 11.29 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Movers.Examples.MoverStages): time 0.09183/0.6232, allocations: 93.04 MB / 0.8196 GB, free: 13.94 MB / 0.6387 GB Notification: Performance of NFInst.instExpressions: time 0.05205/0.6753, allocations: 33.46 MB / 0.8523 GB, free: 12.4 MB / 0.67 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.008793/0.6842, allocations: 131.1 kB / 0.8524 GB, free: 12.27 MB / 0.67 GB Notification: Performance of NFTyping.typeComponents: time 0.00732/0.6915, allocations: 1.737 MB / 0.8541 GB, free: 10.52 MB / 0.67 GB Notification: Performance of NFTyping.typeBindings: time 0.01463/0.7062, allocations: 4.2 MB / 0.8582 GB, free: 6.309 MB / 0.67 GB Notification: Performance of NFTyping.typeClassSections: time 0.01008/0.7163, allocations: 3.415 MB / 0.8615 GB, free: 2.926 MB / 0.67 GB Notification: Performance of NFFlatten.flatten: time 0.02299/0.7393, allocations: 11.92 MB / 0.8732 GB, free: 6.969 MB / 0.6856 GB Notification: Performance of NFFlatten.resolveConnections: time 0.006916/0.7462, allocations: 2.884 MB / 0.876 GB, free: 4.027 MB / 0.6856 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0106/0.7569, allocations: 3.119 MB / 0.879 GB, free: 0.8945 MB / 0.6856 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007575/0.7645, allocations: 2.816 MB / 0.8818 GB, free: 14.07 MB / 0.7012 GB Notification: Performance of NFPackage.collectConstants: time 0.001607/0.7662, allocations: 160 kB / 0.8819 GB, free: 13.91 MB / 0.7012 GB Notification: Performance of NFFlatten.collectFunctions: time 0.007965/0.7741, allocations: 2.331 MB / 0.8842 GB, free: 11.57 MB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.002969/0.7772, allocations: 1.409 MB / 0.8856 GB, free: 10.16 MB / 0.7012 GB Notification: Performance of NFVerifyModel.verify: time 0.006267/0.7835, allocations: 2.325 MB / 0.8878 GB, free: 7.816 MB / 0.7012 GB Notification: Performance of NFConvertDAE.convert: time 0.01483/0.7983, allocations: 7.455 MB / 0.8951 GB, free: 344 kB / 0.7012 GB Notification: Performance of FrontEnd - DAE generated: time 6.202e-06/0.7984, allocations: 0 / 0.8951 GB, free: 344 kB / 0.7012 GB Notification: Performance of FrontEnd: time 4.98e-06/0.7984, allocations: 0 / 0.8951 GB, free: 344 kB / 0.7012 GB Notification: Performance of Transformations before backend: time 0.0002704/0.7987, allocations: 3.938 kB / 0.8951 GB, free: 340 kB / 0.7012 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 517 * Number of variables: 517 Notification: Performance of Generate backend data structure: time 0.01474/0.8134, allocations: 5.203 MB / 0.9002 GB, free: 11.04 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 5.589e-05/0.8135, allocations: 12.03 kB / 0.9002 GB, free: 11.03 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.007612/0.8211, allocations: 1.329 MB / 0.9015 GB, free: 9.695 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.01273/0.8339, allocations: 5.198 MB / 0.9066 GB, free: 4.418 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0008435/0.8348, allocations: 316.9 kB / 0.9069 GB, free: 4.105 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007733/0.8356, allocations: 228 kB / 0.9071 GB, free: 3.883 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006815/0.8424, allocations: 3.103 MB / 0.9101 GB, free: 0.6523 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.906e-05/0.8425, allocations: 3.984 kB / 0.9101 GB, free: 0.6484 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002802/0.8428, allocations: 84 kB / 0.9102 GB, free: 0.5664 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.304e-05/0.8428, allocations: 48 kB / 0.9103 GB, free: 0.5195 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.5092/1.352, allocations: 2.341 MB / 0.9126 GB, free: 156.9 MB / 0.7169 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 preOpt removeSimpleEquations (simulation): time 0.02472/1.377, allocations: 12.5 MB / 0.9248 GB, free: 152.4 MB / 0.7169 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00554/1.382, allocations: 1.869 MB / 0.9266 GB, free: 151.8 MB / 0.7169 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.002297/1.385, allocations: 0.8502 MB / 0.9274 GB, free: 151.5 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.01046/1.395, allocations: 4.487 MB / 0.9318 GB, free: 148.5 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002652/1.398, allocations: 1.403 MB / 0.9332 GB, free: 148 MB / 0.7169 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001754/1.4, allocations: 207.3 kB / 0.9334 GB, free: 147.9 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=87): time 6.572e-06/1.4, allocations: 0 / 0.9334 GB, free: 147.9 MB / 0.7169 GB Notification: Performance of matching and sorting (n=87): time 0.006631/1.406, allocations: 2.793 MB / 0.9361 GB, free: 146.6 MB / 0.7169 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.778e-05/1.406, allocations: 115.7 kB / 0.9362 GB, free: 146.4 MB / 0.7169 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007058/1.414, allocations: 4.924 MB / 0.941 GB, free: 143.9 MB / 0.7169 GB Notification: Performance of collectPreVariables (initialization): time 0.0005715/1.414, allocations: 55.23 kB / 0.9411 GB, free: 143.9 MB / 0.7169 GB Notification: Performance of collectInitialEqns (initialization): time 0.001773/1.416, allocations: 2.121 MB / 0.9431 GB, free: 142 MB / 0.7169 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004259/1.416, allocations: 296 kB / 0.9434 GB, free: 141.8 MB / 0.7169 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000285/1.417, allocations: 205.4 kB / 0.9436 GB, free: 141.6 MB / 0.7169 GB Notification: Performance of setup shared object (initialization): time 7.399e-05/1.417, allocations: 305.1 kB / 0.9439 GB, free: 141.3 MB / 0.7169 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002868/1.42, allocations: 1.612 MB / 0.9455 GB, free: 140.6 MB / 0.7169 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003045/1.423, allocations: 2.57 MB / 0.948 GB, free: 138.6 MB / 0.7169 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005521/1.428, allocations: 4.103 MB / 0.952 GB, free: 135.2 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.291e-05/1.428, allocations: 8 kB / 0.952 GB, free: 135.2 MB / 0.7169 GB Notification: Performance of matching and sorting (n=253) (initialization): time 0.007758/1.436, allocations: 4.466 MB / 0.9564 GB, free: 130.9 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0005226/1.437, allocations: 0.9265 MB / 0.9573 GB, free: 129.5 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.148e-05/1.437, allocations: 28 kB / 0.9573 GB, free: 129.5 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.308e-05/1.437, allocations: 40 kB / 0.9573 GB, free: 129.5 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003154/1.44, allocations: 0.5924 MB / 0.9579 GB, free: 128.9 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002053/1.442, allocations: 2.99 MB / 0.9608 GB, free: 125.8 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003841/1.446, allocations: 216.9 kB / 0.961 GB, free: 125.6 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003194/1.446, allocations: 177.4 kB / 0.9612 GB, free: 125.5 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 9.458e-06/1.446, allocations: 4 kB / 0.9612 GB, free: 125.5 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.005344/1.451, allocations: 3.452 MB / 0.9646 GB, free: 122.1 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.234e-05/1.451, allocations: 28.88 kB / 0.9646 GB, free: 122.1 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.687e-05/1.452, allocations: 40 kB / 0.9647 GB, free: 122 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002449/1.454, allocations: 0.6239 MB / 0.9653 GB, free: 121.4 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.516e-05/1.454, allocations: 59.78 kB / 0.9653 GB, free: 121.3 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003451/1.458, allocations: 205.5 kB / 0.9655 GB, free: 121.1 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002647/1.458, allocations: 176 kB / 0.9657 GB, free: 121 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 127 * Number of states: 0 () * Number of discrete variables: 6 ($PRE.integerTable.combiTimeTable.nextTimeEvent,$whenCondition1,integerTable.combiTimeTable.nextTimeEventScaled,$PRE.integerTable.combiTimeTable.nextTimeEventScaled,integerTable.combiTimeTable.nextTimeEvent,integerTable.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (222): * Single equations (assignments): 214 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 4 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 4 systems {1, 1, 1, 1} * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.002793/1.461, allocations: 1.168 MB / 0.9668 GB, free: 119.8 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001252/1.462, allocations: 422.5 kB / 0.9672 GB, free: 119.4 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006167/1.468, allocations: 2.691 MB / 0.9699 GB, free: 116.7 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.649e-05/1.468, allocations: 12 kB / 0.9699 GB, free: 116.7 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.766e-06/1.468, allocations: 0 / 0.9699 GB, free: 116.7 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.518e-05/1.468, allocations: 11.97 kB / 0.9699 GB, free: 116.7 MB / 0.7169 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 0.01073/1.479, allocations: 5.274 MB / 0.975 GB, free: 111.4 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.404e-06/1.479, allocations: 0 / 0.975 GB, free: 111.4 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001389/1.48, allocations: 291.7 kB / 0.9753 GB, free: 111.1 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003858/1.481, allocations: 145.6 kB / 0.9754 GB, free: 110.9 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.605e-05/1.481, allocations: 39.95 kB / 0.9755 GB, free: 110.9 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00129/1.482, allocations: 2.675 MB / 0.9781 GB, free: 108.1 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.635e-06/1.482, allocations: 4.031 kB / 0.9781 GB, free: 108.1 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004878/1.487, allocations: 2.457 MB / 0.9805 GB, free: 105.6 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001628/1.489, allocations: 0.6903 MB / 0.9812 GB, free: 104.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004432/1.489, allocations: 20 kB / 0.9812 GB, free: 104.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001916/1.491, allocations: 187.7 kB / 0.9814 GB, free: 104.7 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001519/1.491, allocations: 80.89 kB / 0.9814 GB, free: 104.6 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001183/1.491, allocations: 67.94 kB / 0.9815 GB, free: 104.6 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.004367/1.496, allocations: 3.364 MB / 0.9848 GB, free: 101.2 MB / 0.7169 GB Notification: Performance of sort global known variables: time 1.5e-07/1.496, allocations: 0 / 0.9848 GB, free: 101.2 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.005003/1.501, allocations: 1.706 MB / 0.9865 GB, free: 99.56 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 0 () * Number of discrete variables: 4 ($whenCondition1,integerTable.y,integerTable.combiTimeTable.nextTimeEvent,integerTable.combiTimeTable.nextTimeEventScaled) * Number of discrete states: 2 (integerTable.combiTimeTable.nextTimeEvent,integerTable.combiTimeTable.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (110): * Single equations (assignments): 94 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 10 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,1), (1,1)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002082/1.503, allocations: 0.903 MB / 0.9873 GB, free: 98.93 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.009983/1.513, allocations: 5.039 MB / 0.9923 GB, free: 93.91 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.13e-05/1.513, allocations: 3.094 kB / 0.9923 GB, free: 93.91 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.002264/1.515, allocations: 1.029 MB / 0.9933 GB, free: 92.88 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01002/1.525, allocations: 2.158 MB / 0.9954 GB, free: 90.74 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01226/1.537, allocations: 8.836 MB / 1.004 GB, free: 81.86 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001926/1.539, allocations: 2.608 MB / 1.007 GB, free: 79.22 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.005656/1.545, allocations: 1.118 MB / 1.008 GB, free: 78.1 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000821/1.546, allocations: 315.3 kB / 1.008 GB, free: 77.79 MB / 0.7169 GB Notification: Performance of SimCode: time 1.402e-06/1.546, allocations: 0 / 1.008 GB, free: 77.79 MB / 0.7169 GB Notification: Performance of Templates: time 0.1347/1.681, allocations: 88.51 MB / 1.094 GB, free: 6.375 MB / 0.7325 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.sim & ./Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Fluid.Movers.Examples.MoverStages.pipe 2>&1) Environment - environmentSimulation: