Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.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 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.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: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY,fileNamePrefix="Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY",fmuType="me",version="2.0",platforms={"static"}) Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001334/0.001334, allocations: 99.86 kB / 15.05 MB, free: 1.105 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001479/0.001479, allocations: 177.3 kB / 15.95 MB, free: 216 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 2.084/2.084, allocations: 205.4 MB / 222.1 MB, free: 5.656 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.996/1.996, allocations: 292.6 MB / 0.5497 GB, free: 14.64 MB / 462.1 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 0.0007541/0.0007544, allocations: 16.75 kB / 0.6737 GB, free: 26.24 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.411/0.4118, allocations: 116.3 MB / 0.7873 GB, free: 11.88 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY): time 0.02197/0.4339, allocations: 17.33 MB / 0.8042 GB, free: 10.49 MB / 0.6231 GB Notification: Performance of NFInst.instExpressions: time 0.01296/0.4469, allocations: 6.84 MB / 0.8109 GB, free: 3.629 MB / 0.6231 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003115/0.4501, allocations: 47.88 kB / 0.8109 GB, free: 3.582 MB / 0.6231 GB Notification: Performance of NFTyping.typeComponents: time 0.00198/0.4521, allocations: 445.4 kB / 0.8113 GB, free: 3.145 MB / 0.6231 GB Notification: Performance of NFTyping.typeBindings: time 0.004222/0.4563, allocations: 0.8567 MB / 0.8122 GB, free: 2.285 MB / 0.6231 GB Notification: Performance of NFTyping.typeClassSections: time 0.003712/0.4601, allocations: 0.8187 MB / 0.813 GB, free: 1.465 MB / 0.6231 GB Notification: Performance of NFFlatten.flatten: time 0.00588/0.466, allocations: 2.507 MB / 0.8154 GB, free: 14.95 MB / 0.6387 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01535/0.4814, allocations: 8.597 MB / 0.8238 GB, free: 6.277 MB / 0.6387 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003689/0.4851, allocations: 1.468 MB / 0.8253 GB, free: 4.805 MB / 0.6387 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004245/0.4894, allocations: 1.803 MB / 0.827 GB, free: 2.996 MB / 0.6387 GB Notification: Performance of NFPackage.collectConstants: time 0.0008646/0.4903, allocations: 256 kB / 0.8273 GB, free: 2.746 MB / 0.6387 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002202/0.4925, allocations: 0.6829 MB / 0.8279 GB, free: 2.062 MB / 0.6387 GB Notification: Performance of NFScalarize.scalarize: time 0.002285/0.4948, allocations: 1.867 MB / 0.8298 GB, free: 196 kB / 0.6387 GB Notification: Performance of NFVerifyModel.verify: time 0.001309/0.4961, allocations: 0.7615 MB / 0.8305 GB, free: 15.42 MB / 0.6544 GB Notification: Performance of NFConvertDAE.convert: time 0.009307/0.5054, allocations: 7.083 MB / 0.8374 GB, free: 8.32 MB / 0.6544 GB Notification: Performance of FrontEnd - DAE generated: time 5.401e-06/0.5055, allocations: 0 / 0.8374 GB, free: 8.32 MB / 0.6544 GB Notification: Performance of FrontEnd: time 4.728e-06/0.5055, allocations: 0 / 0.8374 GB, free: 8.32 MB / 0.6544 GB Notification: Performance of Transformations before backend: time 0.0003043/0.5058, allocations: 0 / 0.8374 GB, free: 8.32 MB / 0.6544 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1083 * Number of variables: 1083 Notification: Performance of Generate backend data structure: time 0.01012/0.516, allocations: 3.306 MB / 0.8406 GB, free: 4.953 MB / 0.6544 GB Notification: Performance of prepare preOptimizeDAE: time 5.538e-05/0.516, allocations: 12.03 kB / 0.8407 GB, free: 4.941 MB / 0.6544 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002379/0.5184, allocations: 0.6032 MB / 0.8412 GB, free: 4.328 MB / 0.6544 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01396/0.5324, allocations: 2.472 MB / 0.8437 GB, free: 1.848 MB / 0.6544 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.007601/0.5401, allocations: 2.264 MB / 0.8459 GB, free: 15.54 MB / 0.67 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003288/0.5404, allocations: 295.7 kB / 0.8462 GB, free: 15.25 MB / 0.67 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001947/0.5424, allocations: 380 kB / 0.8465 GB, free: 14.88 MB / 0.67 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02083/0.5632, allocations: 7.576 MB / 0.8539 GB, free: 7.188 MB / 0.67 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001092/0.5634, allocations: 11.84 kB / 0.8539 GB, free: 7.176 MB / 0.67 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006999/0.5641, allocations: 160 kB / 0.8541 GB, free: 7.02 MB / 0.67 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006289/0.5647, allocations: 342.7 kB / 0.8544 GB, free: 6.684 MB / 0.67 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01988/0.5846, allocations: 7.221 MB / 0.8615 GB, free: 15.45 MB / 0.6856 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 0.05179/0.6365, allocations: 28.96 MB / 0.8897 GB, free: 32 kB / 0.7012 GB Notification: Performance of preOpt comSubExp (simulation): time 0.009907/0.6465, allocations: 3.619 MB / 0.8933 GB, free: 12.25 MB / 0.7169 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003274/0.6468, allocations: 126.3 kB / 0.8934 GB, free: 12.11 MB / 0.7169 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.41e-05/0.6469, allocations: 63.81 kB / 0.8935 GB, free: 12.04 MB / 0.7169 GB Notification: Performance of pre-optimization done (n=176): time 4.338e-06/0.6469, allocations: 0 / 0.8935 GB, free: 12.04 MB / 0.7169 GB Notification: Performance of matching and sorting (n=221): time 0.08372/0.7307, allocations: 24.55 MB / 0.9174 GB, free: 3.387 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001469/0.7309, allocations: 235.6 kB / 0.9177 GB, free: 3.109 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002748/0.7336, allocations: 1.575 MB / 0.9192 GB, free: 1.52 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 0.0005633/0.7342, allocations: 61.7 kB / 0.9192 GB, free: 1.453 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.5577/1.292, allocations: 1.722 MB / 0.9209 GB, free: 122 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.001653/1.294, allocations: 0.7576 MB / 0.9217 GB, free: 121.8 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003966/1.294, allocations: 61.66 kB / 0.9217 GB, free: 121.8 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0003513/1.294, allocations: 443.8 kB / 0.9222 GB, free: 121.5 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01157/1.306, allocations: 2.404 MB / 0.9245 GB, free: 121.5 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.009541/1.316, allocations: 3.501 MB / 0.9279 GB, free: 120.1 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.007216/1.323, allocations: 2.884 MB / 0.9307 GB, free: 119.2 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.634e-05/1.323, allocations: 9.672 kB / 0.9307 GB, free: 119.2 MB / 0.7325 GB Notification: Performance of matching and sorting (n=400) (initialization): time 0.03059/1.354, allocations: 9.851 MB / 0.9404 GB, free: 116.7 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.004474/1.358, allocations: 13.83 MB / 0.9539 GB, free: 101.9 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001697/1.358, allocations: 35.66 kB / 0.9539 GB, free: 101.9 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.02342/1.382, allocations: 5.425 MB / 0.9592 GB, free: 101.4 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006002/1.388, allocations: 1.033 MB / 0.9602 GB, free: 101.3 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03638/1.424, allocations: 19.25 MB / 0.979 GB, free: 89.99 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004822/1.429, allocations: 0.5809 MB / 0.9796 GB, free: 89.7 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0006055/1.43, allocations: 167.2 kB / 0.9797 GB, free: 89.66 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 2.087e-05/1.43, allocations: 3.875 kB / 0.9797 GB, free: 89.66 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01962/1.45, allocations: 8.169 MB / 0.9877 GB, free: 83.7 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001584/1.45, allocations: 32.56 kB / 0.9878 GB, free: 83.66 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01233/1.462, allocations: 3.421 MB / 0.9911 GB, free: 80.24 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005847/1.468, allocations: 1.154 MB / 0.9922 GB, free: 79.08 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02177/1.49, allocations: 10.6 MB / 1.003 GB, free: 68.34 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0045/1.494, allocations: 0.5341 MB / 1.003 GB, free: 67.81 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005751/1.495, allocations: 160.5 kB / 1.003 GB, free: 67.65 MB / 0.7325 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 (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(6,100.0%) 30} * Non-linear torn systems: 1 {6 30} Notification: Performance of prepare postOptimizeDAE: time 0.003082/1.498, allocations: 1.694 MB / 1.005 GB, free: 65.95 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000623/1.499, allocations: 189.8 kB / 1.005 GB, free: 65.76 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02153/1.52, allocations: 8.675 MB / 1.014 GB, free: 57.05 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.92e-05/1.52, allocations: 20 kB / 1.014 GB, free: 57.03 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.774e-05/1.52, allocations: 12 kB / 1.014 GB, free: 57.02 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.512e-05/1.52, allocations: 7.969 kB / 1.014 GB, free: 57.01 MB / 0.7325 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03065/1.551, allocations: 13.96 MB / 1.027 GB, free: 42.95 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.336e-05/1.551, allocations: 4 kB / 1.027 GB, free: 42.95 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003395/1.555, allocations: 0.718 MB / 1.028 GB, free: 42.23 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01808/1.573, allocations: 5.106 MB / 1.033 GB, free: 37.11 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006333/1.573, allocations: 63.95 kB / 1.033 GB, free: 37.05 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02712/1.601, allocations: 18.2 MB / 1.051 GB, free: 18.57 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.074e-06/1.601, allocations: 11.94 kB / 1.051 GB, free: 18.56 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02207/1.623, allocations: 9.201 MB / 1.06 GB, free: 8.984 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.00241/1.625, allocations: 0.639 MB / 1.06 GB, free: 8.324 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005038/1.626, allocations: 51.98 kB / 1.06 GB, free: 8.273 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003232/1.629, allocations: 0.495 MB / 1.061 GB, free: 7.781 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005846/1.629, allocations: 189.5 kB / 1.061 GB, free: 7.594 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001753/1.63, allocations: 79.95 kB / 1.061 GB, free: 7.516 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.00145/1.631, allocations: 1.054 MB / 1.062 GB, free: 6.461 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.3e-07/1.631, allocations: 0 / 1.062 GB, free: 6.461 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.006256/1.637, allocations: 1.729 MB / 1.064 GB, free: 4.734 MB / 0.7325 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 (linear and non-linear blocks): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems: 1 {(6,100.0%) 30} * Non-linear torn systems: 1 {6 30} Notification: Performance of Backend phase and start with SimCode phase: time 0.02384/1.661, allocations: 12.03 MB / 1.076 GB, free: 8.445 MB / 0.7481 GB Notification: Performance of simCode: created initialization part: time 0.02761/1.689, allocations: 10.69 MB / 1.086 GB, free: 13.73 MB / 0.7637 GB Notification: Performance of simCode: created event and clocks part: time 1.615e-05/1.689, allocations: 0.5 kB / 1.086 GB, free: 13.73 MB / 0.7637 GB Notification: Performance of simCode: created simulation system equations: time 0.01067/1.7, allocations: 3.784 MB / 1.09 GB, free: 9.922 MB / 0.7637 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001811/1.702, allocations: 217 kB / 1.09 GB, free: 9.715 MB / 0.7637 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.07882/1.78, allocations: 52.06 MB / 1.141 GB, free: 4.312 MB / 0.8106 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003702/1.784, allocations: 2.966 MB / 1.144 GB, free: 1.312 MB / 0.8106 GB Notification: Performance of simCode: alias equations: time 0.005541/1.79, allocations: 1.676 MB / 1.145 GB, free: 15.64 MB / 0.8262 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002071/1.792, allocations: 1.284 MB / 1.147 GB, free: 14.36 MB / 0.8262 GB Notification: Performance of SimCode: time 1.253e-06/1.792, allocations: 0 / 1.147 GB, free: 14.36 MB / 0.8262 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1366/1.928, allocations: 84.54 MB / 1.229 GB, free: 10.21 MB / 0.9044 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0003336/1.929, allocations: 280.9 kB / 1.229 GB, free: 9.844 MB / 0.9044 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.94/5.869, allocations: 4 kB / 1.229 GB, free: 9.84 MB / 0.9044 GB (rm -f Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe ; mkfifo Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe ; head -c 1048576 < Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe >> ../files/Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 Buildings_8_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY.fmu > Buildings_8_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe 2>&1) Environment - environmentSimulation: