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.UnbalancedStepDown.YY.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.UnbalancedStepDown.YY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001085/0.001085, allocations: 97.95 kB / 15.36 MB, free: 0.7344 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.009451/0.009451, allocations: 170.9 kB / 16.27 MB, free: 6.648 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.609/1.609, allocations: 205.4 MB / 222.5 MB, free: 5.566 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 1.638/1.638, allocations: 252 MB / 0.5105 GB, free: 4.672 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 0.0005262/0.0005262, allocations: 12.52 kB / 0.6249 GB, free: 0.6758 MB / 0.5137 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.5092/0.5098, 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.UnbalancedStepDown.YY): time 0.02202/0.5319, allocations: 18.87 MB / 0.7472 GB, free: 8.316 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01291/0.5449, allocations: 7.216 MB / 0.7542 GB, free: 1.078 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002168/0.5471, allocations: 47.88 kB / 0.7543 GB, free: 1.031 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001291/0.5484, allocations: 421 kB / 0.7547 GB, free: 0.6172 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.003832/0.5522, allocations: 1.44 MB / 0.7561 GB, free: 15.17 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.003223/0.5555, allocations: 1.044 MB / 0.7571 GB, free: 14.13 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.009654/0.5651, allocations: 9.236 MB / 0.7661 GB, free: 4.875 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01513/0.5803, allocations: 10.26 MB / 0.7761 GB, free: 10.5 MB / 0.5919 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00364/0.584, allocations: 1.79 MB / 0.7779 GB, free: 8.703 MB / 0.5919 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004979/0.589, allocations: 2.866 MB / 0.7807 GB, free: 5.828 MB / 0.5919 GB Notification: Performance of NFPackage.collectConstants: time 0.001012/0.59, allocations: 256 kB / 0.7809 GB, free: 5.578 MB / 0.5919 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002869/0.5929, allocations: 1.197 MB / 0.7821 GB, free: 4.379 MB / 0.5919 GB Notification: Performance of NFScalarize.scalarize: time 0.00253/0.5955, allocations: 2.046 MB / 0.7841 GB, free: 2.328 MB / 0.5919 GB Notification: Performance of NFVerifyModel.verify: time 0.002825/0.5983, allocations: 1.942 MB / 0.786 GB, free: 380 kB / 0.5919 GB Notification: Performance of NFConvertDAE.convert: time 0.009682/0.608, allocations: 8.181 MB / 0.794 GB, free: 8.164 MB / 0.6075 GB Notification: Performance of FrontEnd - DAE generated: time 5.601e-06/0.608, allocations: 0 / 0.794 GB, free: 8.164 MB / 0.6075 GB Notification: Performance of FrontEnd: time 2.875e-06/0.6081, allocations: 4 kB / 0.794 GB, free: 8.16 MB / 0.6075 GB Notification: Performance of Transformations before backend: time 0.0002535/0.6083, allocations: 0 / 0.794 GB, free: 8.16 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: 1094 * Number of variables: 1094 Notification: Performance of Generate backend data structure: time 0.009013/0.6173, allocations: 3.294 MB / 0.7972 GB, free: 4.805 MB / 0.6075 GB Notification: Performance of prepare preOptimizeDAE: time 4.998e-05/0.6174, allocations: 8.031 kB / 0.7972 GB, free: 4.797 MB / 0.6075 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0133/0.6307, allocations: 2.391 MB / 0.7995 GB, free: 2.395 MB / 0.6075 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004887/0.6356, allocations: 2.292 MB / 0.8018 GB, free: 60 kB / 0.6075 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002637/0.6359, allocations: 300.3 kB / 0.8021 GB, free: 15.76 MB / 0.6231 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001176/0.6371, allocations: 391.8 kB / 0.8024 GB, free: 15.38 MB / 0.6231 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01644/0.6536, allocations: 7.667 MB / 0.8099 GB, free: 7.598 MB / 0.6231 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.587e-05/0.6537, allocations: 0 / 0.8099 GB, free: 7.598 MB / 0.6231 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005032/0.6542, allocations: 168 kB / 0.8101 GB, free: 7.434 MB / 0.6231 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004758/0.6547, allocations: 350.7 kB / 0.8104 GB, free: 7.09 MB / 0.6231 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0178/0.6725, allocations: 7.269 MB / 0.8175 GB, free: 15.81 MB / 0.6387 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 0.03835/0.7109, allocations: 28.91 MB / 0.8458 GB, free: 444 kB / 0.6544 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007337/0.7183, allocations: 3.683 MB / 0.8493 GB, free: 12.59 MB / 0.67 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004698/0.723, allocations: 1.999 MB / 0.8513 GB, free: 10.57 MB / 0.67 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000211/0.7232, allocations: 122.3 kB / 0.8514 GB, free: 10.43 MB / 0.67 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.328e-05/0.7233, allocations: 63.8 kB / 0.8515 GB, free: 10.36 MB / 0.67 GB Notification: Performance of pre-optimization done (n=176): time 4.529e-06/0.7233, allocations: 0 / 0.8515 GB, free: 10.36 MB / 0.67 GB Notification: Performance of matching and sorting (n=221): time 0.08314/0.8064, allocations: 24.78 MB / 0.8757 GB, free: 1.473 MB / 0.6856 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001825/0.8067, allocations: 235.6 kB / 0.8759 GB, free: 1.195 MB / 0.6856 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002354/0.809, allocations: 1.624 MB / 0.8775 GB, free: 15.56 MB / 0.7012 GB Notification: Performance of collectPreVariables (initialization): time 0.0004532/0.8095, allocations: 61.7 kB / 0.8776 GB, free: 15.49 MB / 0.7012 GB Notification: Performance of collectInitialEqns (initialization): time 0.001765/0.8113, allocations: 1.748 MB / 0.8793 GB, free: 13.72 MB / 0.7012 GB Notification: Performance of collectInitialBindings (initialization): time 0.001148/0.8124, allocations: 0.7588 MB / 0.88 GB, free: 12.95 MB / 0.7012 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000435/0.8129, allocations: 248.2 kB / 0.8802 GB, free: 12.7 MB / 0.7012 GB Notification: Performance of setup shared object (initialization): time 0.0001382/0.813, allocations: 305.1 kB / 0.8805 GB, free: 12.4 MB / 0.7012 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00569/0.8187, allocations: 2.465 MB / 0.8829 GB, free: 9.93 MB / 0.7012 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006644/0.8254, allocations: 3.566 MB / 0.8864 GB, free: 5.863 MB / 0.7012 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01181/0.8372, allocations: 6.186 MB / 0.8925 GB, free: 15.18 MB / 0.7169 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.376e-05/0.8373, allocations: 8 kB / 0.8925 GB, free: 15.18 MB / 0.7169 GB Notification: Performance of matching and sorting (n=400) (initialization): time 0.02687/0.8641, allocations: 10.03 MB / 0.9023 GB, free: 5.125 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 0.0009349/0.8651, allocations: 1.129 MB / 0.9034 GB, free: 3.504 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.973e-05/0.8652, allocations: 36 kB / 0.9034 GB, free: 3.469 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.4361/1.301, allocations: 5.463 MB / 0.9087 GB, free: 157.9 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005235/1.307, allocations: 1.028 MB / 0.9097 GB, free: 157.9 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0359/1.342, allocations: 19.35 MB / 0.9286 GB, free: 150.4 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004634/1.347, allocations: 0.5771 MB / 0.9292 GB, free: 150.3 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006718/1.348, allocations: 164.8 kB / 0.9294 GB, free: 150.3 MB / 0.7169 GB Notification: Performance of prepare postOptimizeDAE: time 1.013e-05/1.348, allocations: 3.969 kB / 0.9294 GB, free: 150.3 MB / 0.7169 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.02094/1.369, allocations: 8.307 MB / 0.9375 GB, free: 147.7 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.000115/1.369, allocations: 34.56 kB / 0.9375 GB, free: 147.7 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01278/1.382, allocations: 3.435 MB / 0.9409 GB, free: 145.3 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005153/1.387, allocations: 1.154 MB / 0.942 GB, free: 144.1 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01716/1.404, allocations: 10.62 MB / 0.9524 GB, free: 133.5 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004403/1.409, allocations: 0.5406 MB / 0.9529 GB, free: 132.9 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006063/1.409, allocations: 166.7 kB / 0.953 GB, free: 132.8 MB / 0.7169 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 159 * 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 (330): * Single equations (assignments): 328 * 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 {(6,30,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(6,30)} Notification: Performance of prepare postOptimizeDAE: time 0.003015/1.412, allocations: 1.699 MB / 0.9547 GB, free: 131.1 MB / 0.7169 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006962/1.413, allocations: 205.6 kB / 0.9549 GB, free: 131 MB / 0.7169 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02296/1.436, allocations: 8.781 MB / 0.9635 GB, free: 122.2 MB / 0.7169 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.743e-05/1.436, allocations: 24 kB / 0.9635 GB, free: 122.2 MB / 0.7169 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.281e-05/1.436, allocations: 8 kB / 0.9635 GB, free: 122.1 MB / 0.7169 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.368e-05/1.436, allocations: 15.95 kB / 0.9635 GB, free: 122.1 MB / 0.7169 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03264/1.469, allocations: 14.61 MB / 0.9778 GB, free: 107.4 MB / 0.7169 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.892e-05/1.469, allocations: 11.94 kB / 0.9778 GB, free: 107.4 MB / 0.7169 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003173/1.472, allocations: 0.7105 MB / 0.9785 GB, free: 106.7 MB / 0.7169 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01859/1.491, allocations: 5.141 MB / 0.9835 GB, free: 101.5 MB / 0.7169 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0008313/1.492, allocations: 63.95 kB / 0.9836 GB, free: 101.4 MB / 0.7169 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02866/1.52, allocations: 18.23 MB / 1.001 GB, free: 82.96 MB / 0.7169 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.053e-05/1.52, allocations: 15.92 kB / 1.001 GB, free: 82.95 MB / 0.7169 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02268/1.543, allocations: 8.86 MB / 1.01 GB, free: 73.96 MB / 0.7169 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002497/1.546, allocations: 0.6651 MB / 1.011 GB, free: 73.28 MB / 0.7169 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001138/1.547, allocations: 48.23 kB / 1.011 GB, free: 73.23 MB / 0.7169 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004069/1.551, allocations: 0.4914 MB / 1.011 GB, free: 72.74 MB / 0.7169 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009629/1.552, allocations: 193.5 kB / 1.011 GB, free: 72.55 MB / 0.7169 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0004377/1.552, allocations: 79.95 kB / 1.011 GB, free: 72.47 MB / 0.7169 GB Notification: Performance of sorting global known variables: time 0.001964/1.554, allocations: 1.091 MB / 1.013 GB, free: 71.38 MB / 0.7169 GB Notification: Performance of sort global known variables: time 7.61e-07/1.554, allocations: 0 / 1.013 GB, free: 71.38 MB / 0.7169 GB Notification: Performance of remove unused functions: time 0.007335/1.562, allocations: 1.727 MB / 1.014 GB, free: 69.66 MB / 0.7169 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 34 * 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 (154): * Single equations (assignments): 152 * 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 {(6,30,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(6,30)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0005875/1.562, allocations: 175.4 kB / 1.014 GB, free: 69.48 MB / 0.7169 GB Notification: Performance of simCode: created initialization part: time 0.02725/1.589, allocations: 10.86 MB / 1.025 GB, free: 58.59 MB / 0.7169 GB Notification: Performance of simCode: created event and clocks part: time 1.54e-05/1.59, allocations: 1.875 kB / 1.025 GB, free: 58.59 MB / 0.7169 GB Notification: Performance of simCode: created simulation system equations: time 0.00994/1.599, allocations: 3.835 MB / 1.029 GB, free: 54.73 MB / 0.7169 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004298/1.604, allocations: 272.6 kB / 1.029 GB, free: 54.47 MB / 0.7169 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0197/1.624, allocations: 10.19 MB / 1.039 GB, free: 44.16 MB / 0.7169 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002923/1.627, allocations: 2.92 MB / 1.042 GB, free: 41.2 MB / 0.7169 GB Notification: Performance of simCode: alias equations: time 0.005008/1.632, allocations: 1.684 MB / 1.043 GB, free: 39.52 MB / 0.7169 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006159/1.632, allocations: 171.3 kB / 1.044 GB, free: 39.35 MB / 0.7169 GB Notification: Performance of SimCode: time 1.503e-06/1.632, allocations: 0 / 1.044 GB, free: 39.35 MB / 0.7169 GB Notification: Performance of Templates: time 0.0932/1.725, allocations: 62.59 MB / 1.105 GB, free: 8.934 MB / 0.7481 GB make -j1 -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.makefile Environment - environmentSimulation: (rm -f Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe ; mkfifo Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe ; head -c 1048576 < Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe >> ../files/Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.sim & ./Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_maint.7.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe 2>&1) Environment - environmentSimulation: