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.UnbalancedStepUp.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.UnbalancedStepUp.DY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001047/0.001047, allocations: 91.84 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 0.008589/0.00859, allocations: 170 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 1.623/1.623, allocations: 205.4 MB / 222.4 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: 4.668 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 0.0005756/0.0005757, allocations: 16 kB / 0.6249 GB, free: 0.6758 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7001/0.7006, allocations: 106.3 MB / 0.7288 GB, free: 11.26 MB / 0.545 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY): time 0.02027/0.7209, allocations: 17.52 MB / 0.7459 GB, free: 9.676 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01209/0.7331, allocations: 6.822 MB / 0.7525 GB, free: 2.832 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.00187/0.735, allocations: 43.88 kB / 0.7526 GB, free: 2.789 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001026/0.7361, allocations: 393.3 kB / 0.7529 GB, free: 2.402 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.003597/0.7397, allocations: 1.355 MB / 0.7543 GB, free: 1.043 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.003108/0.7428, allocations: 1.01 MB / 0.7553 GB, free: 32 kB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.009889/0.7527, allocations: 8.783 MB / 0.7638 GB, free: 7.23 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01329/0.766, allocations: 8.895 MB / 0.7725 GB, free: 14.24 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004074/0.7701, allocations: 1.705 MB / 0.7742 GB, free: 12.53 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.005309/0.7754, allocations: 2.742 MB / 0.7769 GB, free: 9.777 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.0008124/0.7763, allocations: 244 kB / 0.7771 GB, free: 9.539 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002894/0.7792, allocations: 1.17 MB / 0.7782 GB, free: 8.367 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.002655/0.7818, allocations: 1.945 MB / 0.7801 GB, free: 6.418 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.002925/0.7848, allocations: 1.86 MB / 0.782 GB, free: 4.543 MB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.008919/0.7937, allocations: 7.737 MB / 0.7895 GB, free: 12.78 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 6.523e-06/0.7938, allocations: 0 / 0.7895 GB, free: 12.78 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.705e-06/0.7938, allocations: 0 / 0.7895 GB, free: 12.78 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 0.0002571/0.794, allocations: 4 kB / 0.7895 GB, free: 12.78 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: 1034 * Number of variables: 1034 Notification: Performance of Generate backend data structure: time 0.008387/0.8024, allocations: 3.184 MB / 0.7926 GB, free: 9.531 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.721e-05/0.8025, allocations: 12.02 kB / 0.7926 GB, free: 9.52 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0131/0.8156, allocations: 2.36 MB / 0.7949 GB, free: 7.152 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005097/0.8207, allocations: 2.225 MB / 0.7971 GB, free: 4.883 MB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002215/0.821, allocations: 275.8 kB / 0.7974 GB, free: 4.613 MB / 0.6075 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001108/0.8221, allocations: 375.9 kB / 0.7977 GB, free: 4.246 MB / 0.6075 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01705/0.8392, allocations: 7.355 MB / 0.8049 GB, free: 12.77 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.13e-05/0.8393, allocations: 7.938 kB / 0.8049 GB, free: 12.76 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004757/0.8398, allocations: 152 kB / 0.8051 GB, free: 12.61 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004952/0.8403, allocations: 334.4 kB / 0.8054 GB, free: 12.29 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01682/0.8571, allocations: 7.142 MB / 0.8124 GB, free: 5.129 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 0.03771/0.8949, allocations: 28.26 MB / 0.84 GB, free: 6.473 MB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008862/0.9037, allocations: 4.172 MB / 0.844 GB, free: 2.082 MB / 0.6544 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.00638/0.9102, allocations: 2.335 MB / 0.8463 GB, free: 15.73 MB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004467/0.9107, allocations: 131 kB / 0.8464 GB, free: 15.59 MB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 7.097e-05/0.9107, allocations: 64.5 kB / 0.8465 GB, free: 15.51 MB / 0.67 GB Notification: Performance of pre-optimization done (n=198): time 3.637e-06/0.9108, allocations: 3.938 kB / 0.8465 GB, free: 15.51 MB / 0.67 GB Notification: Performance of matching and sorting (n=257): time 0.1134/1.024, allocations: 30.48 MB / 0.8763 GB, free: 0.9492 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002042/1.024, allocations: 235.6 kB / 0.8765 GB, free: 0.6719 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002861/1.027, allocations: 1.462 MB / 0.8779 GB, free: 15.2 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 0.0005475/1.028, allocations: 65.7 kB / 0.878 GB, free: 15.13 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.001261/1.029, allocations: 1.567 MB / 0.8795 GB, free: 13.54 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.001261/1.03, allocations: 0.8664 MB / 0.8804 GB, free: 12.66 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0007627/1.031, allocations: 256.1 kB / 0.8806 GB, free: 12.41 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001183/1.031, allocations: 305.1 kB / 0.8809 GB, free: 12.11 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00629/1.038, allocations: 2.539 MB / 0.8834 GB, free: 9.562 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.007014/1.045, allocations: 3.439 MB / 0.8867 GB, free: 5.742 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01319/1.058, allocations: 6.133 MB / 0.8927 GB, free: 15.2 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.799e-05/1.058, allocations: 8 kB / 0.8927 GB, free: 15.2 MB / 0.7169 GB Notification: Performance of matching and sorting (n=398) (initialization): time 0.02933/1.087, allocations: 10.27 MB / 0.9028 GB, free: 4.859 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0009217/1.088, allocations: 0.8756 MB / 0.9036 GB, free: 3.602 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.941e-05/1.088, allocations: 39.88 kB / 0.9036 GB, free: 3.562 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.5298/1.618, allocations: 5.665 MB / 0.9092 GB, free: 159.5 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005063/1.623, allocations: 0.9849 MB / 0.9101 GB, free: 159.5 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03865/1.662, allocations: 21.58 MB / 0.9312 GB, free: 151 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004362/1.666, allocations: 0.5506 MB / 0.9317 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004031/1.667, allocations: 153 kB / 0.9319 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.219e-05/1.667, allocations: 3.719 kB / 0.9319 GB, free: 150.9 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01958/1.686, allocations: 8.432 MB / 0.9401 GB, free: 147.6 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.533e-05/1.687, allocations: 31 kB / 0.9402 GB, free: 147.5 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01282/1.699, allocations: 3.543 MB / 0.9436 GB, free: 144 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004905/1.704, allocations: 1.131 MB / 0.9447 GB, free: 142.9 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01868/1.723, allocations: 11.8 MB / 0.9562 GB, free: 131 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004635/1.728, allocations: 0.5208 MB / 0.9568 GB, free: 130.5 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007915/1.729, allocations: 144 kB / 0.9569 GB, free: 130.4 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 0.003296/1.732, allocations: 1.626 MB / 0.9585 GB, free: 128.7 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008203/1.733, allocations: 197.2 kB / 0.9587 GB, free: 128.6 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02424/1.757, allocations: 9.839 MB / 0.9683 GB, free: 118.7 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.514e-05/1.757, allocations: 29.78 kB / 0.9683 GB, free: 118.7 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.377e-05/1.757, allocations: 8 kB / 0.9683 GB, free: 118.7 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5e-05/1.757, allocations: 15.95 kB / 0.9683 GB, free: 118.7 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03211/1.789, allocations: 15.2 MB / 0.9832 GB, free: 103.3 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.884e-05/1.789, allocations: 8 kB / 0.9832 GB, free: 103.3 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003108/1.792, allocations: 0.7336 MB / 0.9839 GB, free: 102.6 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01865/1.811, allocations: 5.334 MB / 0.9891 GB, free: 97.24 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004587/1.812, allocations: 71.95 kB / 0.9892 GB, free: 97.17 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02933/1.841, allocations: 20.47 MB / 1.009 GB, free: 76.44 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.868e-06/1.841, allocations: 15.88 kB / 1.009 GB, free: 76.43 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02249/1.863, allocations: 9.383 MB / 1.018 GB, free: 66.85 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001409/1.865, allocations: 0.6952 MB / 1.019 GB, free: 66.14 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006173/1.865, allocations: 59.83 kB / 1.019 GB, free: 66.09 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003555/1.869, allocations: 0.4992 MB / 1.02 GB, free: 65.59 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007829/1.87, allocations: 222.3 kB / 1.02 GB, free: 65.37 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002587/1.87, allocations: 91.95 kB / 1.02 GB, free: 65.28 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001586/1.872, allocations: 1.029 MB / 1.021 GB, free: 64.25 MB / 0.7169 GB Notification: Performance of sort global known variables: time 2e-07/1.872, allocations: 0 / 1.021 GB, free: 64.25 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.006072/1.878, allocations: 1.758 MB / 1.023 GB, free: 62.49 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 0.0004885/1.878, allocations: 169.9 kB / 1.023 GB, free: 62.31 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.02615/1.904, allocations: 11.33 MB / 1.034 GB, free: 50.93 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.15e-05/1.905, allocations: 0 / 1.034 GB, free: 50.93 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.01002/1.915, allocations: 4.136 MB / 1.038 GB, free: 46.77 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003904/1.919, allocations: 282 kB / 1.038 GB, free: 46.5 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02434/1.943, allocations: 11.52 MB / 1.049 GB, free: 34.84 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003099/1.946, allocations: 2.86 MB / 1.052 GB, free: 31.95 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.005156/1.951, allocations: 1.666 MB / 1.054 GB, free: 30.28 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007995/1.952, allocations: 175.3 kB / 1.054 GB, free: 30.11 MB / 0.7169 GB Notification: Performance of SimCode: time 1.252e-06/1.952, allocations: 0 / 1.054 GB, free: 30.11 MB / 0.7169 GB Notification: Performance of Templates: time 0.126/2.078, allocations: 66.69 MB / 1.119 GB, free: 11.61 MB / 0.7637 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DY.pipe 2>&1) Environment - environmentSimulation: