Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo", uses=false) 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 3.0.0/package.mo", uses=false) Using package Buildings with version 3.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 3.0.0/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) Using package Modelica_StateGraph2 with version 2.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo) Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY") translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY") [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:257:38-257:110:writable] Warning: The file was not encoded in UTF-8: "

An important practical aspect of state machines is the abilit...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:761:36-761:108:writable] Warning: The file was not encoded in UTF-8: "

The Modelica_StateGraph2 library is described in detail in (O...". Defaulting to 7-bit ASCII with unknown characters replaced by '?'. To change encoding when loading a file: loadFile(encoding="ISO-XXXX-YY"). To change it in a package: add a file package.encoding at the top-level. Note: The Modelica Language Specification only allows files encoded in UTF-8. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica_StateGraph2 2.0.2/package.mo:1435:36-1435:108:writable] Warning: The file was not encoded in UTF-8: "

Main Authors:

SCode: time 0.2132/0.214, allocations: 82.22 MB / 0.5941 GB, free: 5.539 MB / 446.1 MB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY): time 0.02071/0.2347, allocations: 17.34 MB / 0.6111 GB, free: 4.133 MB / 462.1 MB Notification: Performance of NFInst.instExpressions: time 0.01345/0.2483, allocations: 6.966 MB / 0.6179 GB, free: 13.15 MB / 478.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002782/0.2511, allocations: 43.88 kB / 0.6179 GB, free: 13.11 MB / 478.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001253/0.2524, allocations: 393.2 kB / 0.6183 GB, free: 12.72 MB / 478.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004217/0.2566, allocations: 1.378 MB / 0.6196 GB, free: 11.34 MB / 478.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003185/0.2598, allocations: 1.006 MB / 0.6206 GB, free: 10.33 MB / 478.1 MB Notification: Performance of NFFlatten.flatten: time 0.01009/0.2699, allocations: 8.698 MB / 0.6291 GB, free: 1.613 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01354/0.2835, allocations: 8.897 MB / 0.6378 GB, free: 8.617 MB / 494.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.004313/0.2878, allocations: 1.689 MB / 0.6395 GB, free: 6.922 MB / 494.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004689/0.2925, allocations: 2.745 MB / 0.6421 GB, free: 4.168 MB / 494.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0005268/0.2931, allocations: 244 kB / 0.6424 GB, free: 3.93 MB / 494.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002724/0.2958, allocations: 1.189 MB / 0.6435 GB, free: 2.738 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002376/0.2982, allocations: 1.894 MB / 0.6454 GB, free: 0.8398 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.002001/0.3002, allocations: 1.821 MB / 0.6472 GB, free: 15 MB / 0.4981 GB Notification: Performance of NFConvertDAE.convert: time 0.008477/0.3087, allocations: 7.675 MB / 0.6547 GB, free: 7.305 MB / 0.4981 GB Notification: Performance of FrontEnd - DAE generated: time 4.98e-06/0.3087, allocations: 4 kB / 0.6547 GB, free: 7.301 MB / 0.4981 GB Notification: Performance of FrontEnd: time 2.465e-06/0.3087, allocations: 0 / 0.6547 GB, free: 7.301 MB / 0.4981 GB Notification: Performance of Transformations before backend: time 0.0001752/0.3089, allocations: 0 / 0.6547 GB, free: 7.301 MB / 0.4981 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1031 * Number of variables: 1031 Notification: Performance of Generate backend data structure: time 0.007993/0.3169, allocations: 3.172 MB / 0.6578 GB, free: 4.066 MB / 0.4981 GB Notification: Performance of prepare preOptimizeDAE: time 4.931e-05/0.317, allocations: 8.031 kB / 0.6578 GB, free: 4.059 MB / 0.4981 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01249/0.3295, allocations: 2.349 MB / 0.6601 GB, free: 1.703 MB / 0.4981 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.005103/0.3346, allocations: 2.229 MB / 0.6622 GB, free: 15.43 MB / 0.5137 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000243/0.3349, allocations: 275.4 kB / 0.6625 GB, free: 15.16 MB / 0.5137 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000841/0.3357, allocations: 364 kB / 0.6628 GB, free: 14.8 MB / 0.5137 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01502/0.3508, allocations: 7.348 MB / 0.67 GB, free: 7.336 MB / 0.5137 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.602e-05/0.3509, allocations: 7.938 kB / 0.67 GB, free: 7.328 MB / 0.5137 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004446/0.3513, allocations: 156 kB / 0.6702 GB, free: 7.176 MB / 0.5137 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004756/0.3518, allocations: 334.4 kB / 0.6705 GB, free: 6.848 MB / 0.5137 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01591/0.3677, allocations: 7.142 MB / 0.6775 GB, free: 15.69 MB / 0.5294 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 0.401/0.7688, allocations: 22.18 MB / 0.6991 GB, free: 79.8 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.007388/0.7762, allocations: 4.32 MB / 0.7034 GB, free: 78.73 MB / 0.5294 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.005685/0.7819, allocations: 2.399 MB / 0.7057 GB, free: 78.68 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002411/0.7822, allocations: 137.1 kB / 0.7058 GB, free: 78.57 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.486e-05/0.7822, allocations: 61.42 kB / 0.7059 GB, free: 78.54 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=198): time 4.318e-06/0.7822, allocations: 3.984 kB / 0.7059 GB, free: 78.53 MB / 0.5294 GB Notification: Performance of matching and sorting (n=257): time 0.08501/0.8672, allocations: 26.26 MB / 0.7315 GB, free: 69.63 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.533e-05/0.8674, allocations: 238.2 kB / 0.7318 GB, free: 69.37 MB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001717/0.8691, allocations: 1.462 MB / 0.7332 GB, free: 68.59 MB / 0.5294 GB Notification: Performance of collectPreVariables (initialization): time 0.0004122/0.8695, allocations: 65.64 kB / 0.7333 GB, free: 68.52 MB / 0.5294 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006276/0.8701, allocations: 1.551 MB / 0.7348 GB, free: 67.16 MB / 0.5294 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006785/0.8708, allocations: 0.8696 MB / 0.7356 GB, free: 66.42 MB / 0.5294 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003646/0.8712, allocations: 255.4 kB / 0.7359 GB, free: 66.26 MB / 0.5294 GB Notification: Performance of setup shared object (initialization): time 4.37e-05/0.8713, allocations: 305.1 kB / 0.7362 GB, free: 65.96 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004932/0.8762, allocations: 2.634 MB / 0.7387 GB, free: 64.28 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005266/0.8815, allocations: 3.536 MB / 0.7422 GB, free: 60.36 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01003/0.8915, allocations: 6.347 MB / 0.7484 GB, free: 53.61 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.19e-05/0.8915, allocations: 8 kB / 0.7484 GB, free: 53.6 MB / 0.5294 GB Notification: Performance of matching and sorting (n=398) (initialization): time 0.0238/0.9153, allocations: 10.36 MB / 0.7585 GB, free: 43.17 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 0.0006088/0.916, allocations: 0.8732 MB / 0.7594 GB, free: 41.92 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.882e-05/0.9161, allocations: 28 kB / 0.7594 GB, free: 41.89 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02032/0.9364, allocations: 5.672 MB / 0.7649 GB, free: 36.2 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004218/0.9406, allocations: 0.9945 MB / 0.7659 GB, free: 35.21 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03379/0.9745, allocations: 22.73 MB / 0.7881 GB, free: 12.25 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004481/0.979, allocations: 0.5302 MB / 0.7886 GB, free: 11.71 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003104/0.9793, allocations: 151.9 kB / 0.7888 GB, free: 11.57 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 1.425e-05/0.9793, allocations: 6.516 kB / 0.7888 GB, free: 11.56 MB / 0.5294 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.0198/0.9991, allocations: 8.663 MB / 0.7972 GB, free: 2.848 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.281e-05/0.9993, allocations: 28.31 kB / 0.7972 GB, free: 2.82 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01316/1.012, allocations: 3.614 MB / 0.8008 GB, free: 15.2 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004832/1.017, allocations: 1.127 MB / 0.8019 GB, free: 14.07 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02125/1.039, allocations: 12.62 MB / 0.8142 GB, free: 1.324 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00449/1.043, allocations: 0.5108 MB / 0.8147 GB, free: 0.8125 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003731/1.043, allocations: 151.9 kB / 0.8148 GB, free: 0.6641 MB / 0.545 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 {(8,40)} Notification: Performance of prepare postOptimizeDAE: time 0.003739/1.047, allocations: 1.64 MB / 0.8164 GB, free: 15.01 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006765/1.048, allocations: 189.8 kB / 0.8166 GB, free: 14.82 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.03897/1.087, allocations: 9.939 MB / 0.8263 GB, free: 4.832 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.801e-05/1.087, allocations: 27.94 kB / 0.8264 GB, free: 4.805 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.178e-05/1.087, allocations: 12 kB / 0.8264 GB, free: 4.793 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.324e-05/1.087, allocations: 19.94 kB / 0.8264 GB, free: 4.773 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04527/1.132, allocations: 15.51 MB / 0.8415 GB, free: 5.129 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.078e-05/1.133, allocations: 8 kB / 0.8415 GB, free: 5.121 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003572/1.136, allocations: 0.7411 MB / 0.8423 GB, free: 4.379 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.02032/1.156, allocations: 5.299 MB / 0.8474 GB, free: 15.07 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007319/1.157, allocations: 71.95 kB / 0.8475 GB, free: 15 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03661/1.194, allocations: 21.74 MB / 0.8687 GB, free: 8.992 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.285e-05/1.194, allocations: 11.94 kB / 0.8687 GB, free: 8.98 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02488/1.219, allocations: 9.501 MB / 0.878 GB, free: 15.29 MB / 0.6231 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002031/1.221, allocations: 0.7211 MB / 0.8787 GB, free: 14.55 MB / 0.6231 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003454/1.221, allocations: 55.98 kB / 0.8788 GB, free: 14.49 MB / 0.6231 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003393/1.225, allocations: 495.2 kB / 0.8793 GB, free: 14.01 MB / 0.6231 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008864/1.226, allocations: 222.3 kB / 0.8795 GB, free: 13.79 MB / 0.6231 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002436/1.226, allocations: 99.89 kB / 0.8796 GB, free: 13.69 MB / 0.6231 GB Notification: Performance of sorting global known variables: time 0.001488/1.227, allocations: 1.025 MB / 0.8806 GB, free: 12.66 MB / 0.6231 GB Notification: Performance of sort global known variables: time 5.01e-07/1.227, allocations: 0 / 0.8806 GB, free: 12.66 MB / 0.6231 GB Notification: Performance of remove unused functions: time 0.00636/1.234, allocations: 1.738 MB / 0.8823 GB, free: 10.92 MB / 0.6231 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 0.0004998/1.234, allocations: 173.5 kB / 0.8824 GB, free: 10.74 MB / 0.6231 GB Notification: Performance of simCode: created initialization part: time 0.02872/1.263, allocations: 11.75 MB / 0.8939 GB, free: 14.94 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 1.41e-05/1.263, allocations: 0 / 0.8939 GB, free: 14.94 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.01122/1.274, allocations: 4.284 MB / 0.8981 GB, free: 10.62 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003592/1.278, allocations: 296 kB / 0.8984 GB, free: 10.34 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02949/1.307, allocations: 12.65 MB / 0.9107 GB, free: 13.55 MB / 0.6544 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003189/1.311, allocations: 2.887 MB / 0.9135 GB, free: 10.63 MB / 0.6544 GB Notification: Performance of simCode: alias equations: time 0.005196/1.316, allocations: 1.684 MB / 0.9152 GB, free: 8.945 MB / 0.6544 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006046/1.316, allocations: 171.3 kB / 0.9154 GB, free: 8.777 MB / 0.6544 GB Notification: Performance of SimCode: time 1.433e-06/1.316, allocations: 0 / 0.9154 GB, free: 8.777 MB / 0.6544 GB Notification: Performance of Templates: time 0.445/1.761, allocations: 68.86 MB / 0.9826 GB, free: 213.6 MB / 0.6856 GB make -j1 -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.makefile Environment - environmentSimulation: (rm -f Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.pipe ; mkfifo Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.pipe ; head -c 1048576 < Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.pipe >> ../files/Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.sim & ./Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY -abortSlowSimulation -alarm=480 -lv LOG_STATS > Buildings_3.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DY.pipe 2>&1) Environment - environmentSimulation: