Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.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.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008304/0.0008305, allocations: 90.44 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 0.006218/0.006218, allocations: 172.5 kB / 16.26 MB, free: 6.613 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.456/1.456, allocations: 205.4 MB / 222.4 MB, free: 5.793 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 1.616/1.616, allocations: 252 MB / 0.5105 GB, free: 4.688 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 0.0006613/0.0006614, allocations: 20 kB / 0.6249 GB, free: 0.6914 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5791/0.5798, allocations: 106.3 MB / 0.7288 GB, free: 11.25 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY): time 0.02136/0.6012, allocations: 17.45 MB / 0.7458 GB, free: 9.73 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01163/0.6129, allocations: 6.803 MB / 0.7524 GB, free: 2.906 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001431/0.6143, allocations: 43.88 kB / 0.7525 GB, free: 2.863 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001119/0.6155, allocations: 397.1 kB / 0.7529 GB, free: 2.473 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.00367/0.6191, allocations: 1.347 MB / 0.7542 GB, free: 1.121 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.003086/0.6222, allocations: 1.005 MB / 0.7552 GB, free: 120 kB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.01085/0.6331, allocations: 8.76 MB / 0.7637 GB, free: 7.34 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0181/0.6513, allocations: 8.84 MB / 0.7723 GB, free: 14.4 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005615/0.6569, allocations: 1.709 MB / 0.774 GB, free: 12.69 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.007549/0.6645, allocations: 2.718 MB / 0.7767 GB, free: 9.961 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.001741/0.6663, allocations: 248 kB / 0.7769 GB, free: 9.719 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004806/0.6711, allocations: 1.182 MB / 0.7781 GB, free: 8.535 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.005029/0.6762, allocations: 1.937 MB / 0.7799 GB, free: 6.594 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.005914/0.6821, allocations: 1.852 MB / 0.7818 GB, free: 4.727 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.0149/0.6971, allocations: 7.71 MB / 0.7893 GB, free: 12.99 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 6.602e-06/0.6971, allocations: 4 kB / 0.7893 GB, free: 12.99 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.134e-06/0.6971, allocations: 0 / 0.7893 GB, free: 12.99 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 0.0003019/0.6975, allocations: 0 / 0.7893 GB, free: 12.99 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: 1023 * Number of variables: 1023 Notification: Performance of Generate backend data structure: time 0.01218/0.7096, allocations: 3.149 MB / 0.7924 GB, free: 9.777 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 5.231e-05/0.7097, allocations: 16.03 kB / 0.7924 GB, free: 9.762 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01923/0.729, allocations: 2.368 MB / 0.7947 GB, free: 7.387 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007217/0.7362, allocations: 2.206 MB / 0.7968 GB, free: 5.137 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004563/0.7367, allocations: 279.7 kB / 0.7971 GB, free: 4.863 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001907/0.7386, allocations: 363.9 kB / 0.7975 GB, free: 4.508 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0243/0.763, allocations: 7.33 MB / 0.8046 GB, free: 13.05 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001418/0.7631, allocations: 7.875 kB / 0.8046 GB, free: 13.05 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001143/0.7643, allocations: 160 kB / 0.8048 GB, free: 12.89 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00057/0.7649, allocations: 334.3 kB / 0.8051 GB, free: 12.56 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01732/0.7822, allocations: 7.13 MB / 0.8121 GB, free: 5.418 MB / 0.6231 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 0.03856/0.8208, allocations: 28.19 MB / 0.8396 GB, free: 6.828 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008236/0.8291, allocations: 4.167 MB / 0.8437 GB, free: 2.441 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005606/0.8347, allocations: 2.331 MB / 0.8459 GB, free: 96 kB / 0.6544 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003114/0.835, allocations: 135 kB / 0.8461 GB, free: 15.95 MB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.867e-05/0.8351, allocations: 56.5 kB / 0.8461 GB, free: 15.88 MB / 0.67 GB Notification: Performance of pre-optimization done (n=198): time 4.719e-06/0.8351, allocations: 0 / 0.8461 GB, free: 15.88 MB / 0.67 GB Notification: Performance of matching and sorting (n=257): time 0.1058/0.9409, allocations: 30.19 MB / 0.8756 GB, free: 1.629 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001306/0.9411, allocations: 239.6 kB / 0.8758 GB, free: 1.348 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002189/0.9433, allocations: 1.416 MB / 0.8772 GB, free: 15.92 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 0.0005056/0.9438, allocations: 65.7 kB / 0.8773 GB, free: 15.85 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.001091/0.9449, allocations: 1.555 MB / 0.8788 GB, free: 14.27 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.0009607/0.9459, allocations: 0.8703 MB / 0.8796 GB, free: 13.39 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004235/0.9463, allocations: 252.2 kB / 0.8799 GB, free: 13.14 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 9.753e-05/0.9464, allocations: 301.1 kB / 0.8802 GB, free: 12.84 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.005594/0.952, allocations: 2.535 MB / 0.8826 GB, free: 10.3 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006193/0.9582, allocations: 3.439 MB / 0.886 GB, free: 6.48 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01237/0.9706, allocations: 6.129 MB / 0.892 GB, free: 15.95 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.416e-05/0.9707, allocations: 8 kB / 0.892 GB, free: 15.94 MB / 0.7169 GB Notification: Performance of matching and sorting (n=398) (initialization): time 0.02773/0.9984, allocations: 10.25 MB / 0.902 GB, free: 5.617 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0006915/0.9991, allocations: 0.8676 MB / 0.9029 GB, free: 4.367 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.92e-05/0.9992, allocations: 28.19 kB / 0.9029 GB, free: 4.34 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.4569/1.456, allocations: 5.673 MB / 0.9084 GB, free: 159.3 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004775/1.461, allocations: 0.9834 MB / 0.9094 GB, free: 159.3 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0385/1.499, allocations: 21.61 MB / 0.9305 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004455/1.504, allocations: 0.5485 MB / 0.931 GB, free: 150.8 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004256/1.504, allocations: 151.5 kB / 0.9312 GB, free: 150.8 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.151e-05/1.504, allocations: 3.781 kB / 0.9312 GB, free: 150.8 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02008/1.525, allocations: 8.433 MB / 0.9394 GB, free: 148 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.18e-05/1.525, allocations: 30.91 kB / 0.9394 GB, free: 148 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01298/1.538, allocations: 3.538 MB / 0.9429 GB, free: 144.8 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004869/1.543, allocations: 1.127 MB / 0.944 GB, free: 143.6 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01768/1.56, allocations: 11.81 MB / 0.9555 GB, free: 131.8 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004214/1.565, allocations: 0.5286 MB / 0.956 GB, free: 131.3 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003382/1.565, allocations: 155.9 kB / 0.9562 GB, free: 131.1 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 121 * 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 (304): * Single equations (assignments): 302 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(6,42,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(6,42)} Notification: Performance of prepare postOptimizeDAE: time 0.002503/1.567, allocations: 1.613 MB / 0.9578 GB, free: 129.5 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005016/1.568, allocations: 193 kB / 0.9579 GB, free: 129.4 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02354/1.591, allocations: 9.861 MB / 0.9676 GB, free: 119.5 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.977e-05/1.591, allocations: 24 kB / 0.9676 GB, free: 119.5 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.66e-05/1.592, allocations: 12 kB / 0.9676 GB, free: 119.5 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.603e-05/1.592, allocations: 11.95 kB / 0.9676 GB, free: 119.5 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03053/1.622, allocations: 15.17 MB / 0.9824 GB, free: 104.1 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.701e-05/1.622, allocations: 12 kB / 0.9824 GB, free: 104.1 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003308/1.626, allocations: 0.7338 MB / 0.9832 GB, free: 103.4 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01979/1.645, allocations: 5.346 MB / 0.9884 GB, free: 98.03 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0008808/1.646, allocations: 75.95 kB / 0.9885 GB, free: 97.96 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03342/1.68, allocations: 20.41 MB / 1.008 GB, free: 77.28 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.026e-05/1.68, allocations: 11.94 kB / 1.008 GB, free: 77.27 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02423/1.704, allocations: 9.382 MB / 1.018 GB, free: 67.7 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00185/1.706, allocations: 0.6958 MB / 1.018 GB, free: 66.98 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0008395/1.707, allocations: 51.98 kB / 1.018 GB, free: 66.93 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003939/1.711, allocations: 0.507 MB / 1.019 GB, free: 66.43 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009121/1.712, allocations: 222.3 kB / 1.019 GB, free: 66.21 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003608/1.712, allocations: 87.95 kB / 1.019 GB, free: 66.12 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001579/1.714, allocations: 0.9964 MB / 1.02 GB, free: 65.12 MB / 0.7169 GB Notification: Performance of sort global known variables: time 2.3e-07/1.714, allocations: 0 / 1.02 GB, free: 65.12 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.006417/1.72, allocations: 1.75 MB / 1.022 GB, free: 63.37 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 40 * 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 (162): * Single equations (assignments): 160 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(6,42,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(6,42)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005694/1.721, allocations: 181.1 kB / 1.022 GB, free: 63.19 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.02739/1.748, allocations: 11.33 MB / 1.033 GB, free: 51.81 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.688e-05/1.748, allocations: 5.938 kB / 1.033 GB, free: 51.8 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.01026/1.758, allocations: 4.134 MB / 1.037 GB, free: 47.64 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005036/1.764, allocations: 263.1 kB / 1.037 GB, free: 47.39 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02643/1.79, allocations: 11.48 MB / 1.049 GB, free: 35.76 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003488/1.794, allocations: 2.847 MB / 1.051 GB, free: 32.88 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.005301/1.799, allocations: 1.652 MB / 1.053 GB, free: 31.23 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007688/1.8, allocations: 167.3 kB / 1.053 GB, free: 31.06 MB / 0.7169 GB Notification: Performance of SimCode: time 8.21e-07/1.8, allocations: 0 / 1.053 GB, free: 31.06 MB / 0.7169 GB Notification: Performance of Templates: time 0.1/1.9, allocations: 66.23 MB / 1.118 GB, free: 13.02 MB / 0.7637 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe 2>&1) Environment - environmentSimulation: