Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.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 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo", uses=false) Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+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(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_DY",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_DY",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 0.0008286/0.0008288, allocations: 88.17 kB / 15.7 MB, free: 460 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.0009871/0.0009872, allocations: 175 kB / 16.58 MB, free: 6.852 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.249/1.249, allocations: 223.3 MB / 240.6 MB, free: 5.43 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6221/0.6221, allocations: 113.7 MB / 405.4 MB, free: 4.602 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.000287/0.000287, allocations: 13.17 kB / 493.2 MB, free: 8.523 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1336/0.1339, allocations: 77.11 MB / 0.5569 GB, free: 11.62 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY): time 0.01593/0.1499, allocations: 16.48 MB / 0.573 GB, free: 11.09 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.009161/0.1591, allocations: 6.433 MB / 0.5793 GB, free: 4.641 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.00131/0.1604, allocations: 47.81 kB / 0.5794 GB, free: 4.594 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0008161/0.1613, allocations: 389.2 kB / 0.5797 GB, free: 4.211 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.00239/0.1637, allocations: 1.152 MB / 0.5808 GB, free: 3.055 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.00203/0.1657, allocations: 0.7758 MB / 0.5816 GB, free: 2.277 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.2635/0.4292, allocations: 6.665 MB / 0.5881 GB, free: 12.8 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0116/0.4408, allocations: 7.94 MB / 0.5959 GB, free: 11.62 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003448/0.4443, allocations: 1.76 MB / 0.5976 GB, free: 11.62 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004622/0.4489, allocations: 2.674 MB / 0.6002 GB, free: 11.55 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.000617/0.4495, allocations: 249.4 kB / 0.6004 GB, free: 11.55 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001862/0.4514, allocations: 0.6938 MB / 0.6011 GB, free: 11.53 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002337/0.4538, allocations: 1.951 MB / 0.603 GB, free: 11.41 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001168/0.4549, allocations: 0.7141 MB / 0.6037 GB, free: 11.26 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.005724/0.4607, allocations: 6.725 MB / 0.6103 GB, free: 8.93 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.391e-06/0.4607, allocations: 1.344 kB / 0.6103 GB, free: 8.93 MB / 446.1 MB Notification: Performance of FrontEnd: time 1.573e-06/0.4607, allocations: 0 / 0.6103 GB, free: 8.93 MB / 446.1 MB Notification: Performance of Transformations before backend: time 0.0001457/0.4608, allocations: 0 / 0.6103 GB, free: 8.93 MB / 446.1 MB 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 0.006191/0.467, allocations: 3.191 MB / 0.6134 GB, free: 7.066 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.711e-05/0.4671, allocations: 13.88 kB / 0.6134 GB, free: 7.062 MB / 446.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0007194/0.4678, allocations: 0.5669 MB / 0.614 GB, free: 6.906 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009924/0.4777, allocations: 2.361 MB / 0.6163 GB, free: 5.84 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003861/0.4816, allocations: 2.178 MB / 0.6184 GB, free: 5.07 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001465/0.4818, allocations: 277.9 kB / 0.6187 GB, free: 5.062 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007402/0.4825, allocations: 361.8 kB / 0.619 GB, free: 5.059 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01224/0.4948, allocations: 7.313 MB / 0.6262 GB, free: 15.88 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.269e-05/0.4949, allocations: 0 / 0.6262 GB, free: 15.88 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004262/0.4953, allocations: 147.8 kB / 0.6263 GB, free: 15.75 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004209/0.4957, allocations: 349.2 kB / 0.6266 GB, free: 15.41 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01379/0.5095, allocations: 7.107 MB / 0.6336 GB, free: 8.293 MB / 462.1 MB 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 0.03017/0.5397, allocations: 28.19 MB / 0.6611 GB, free: 9.879 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.006315/0.5461, allocations: 4.167 MB / 0.6652 GB, free: 5.504 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.004398/0.5505, allocations: 2.338 MB / 0.6674 GB, free: 3.156 MB / 494.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0002389/0.5507, allocations: 129.8 kB / 0.6676 GB, free: 3.02 MB / 494.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.852e-05/0.5508, allocations: 64.48 kB / 0.6676 GB, free: 2.949 MB / 494.1 MB Notification: Performance of pre-optimization done (n=198): time 3.256e-06/0.5508, allocations: 4 kB / 0.6676 GB, free: 2.945 MB / 494.1 MB Notification: Performance of matching and sorting (n=257): time 0.08582/0.6366, allocations: 30.14 MB / 0.6971 GB, free: 4.773 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.832e-05/0.6367, allocations: 235.6 kB / 0.6973 GB, free: 4.492 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001764/0.6385, allocations: 1.4 MB / 0.6987 GB, free: 3.082 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.0002732/0.6388, allocations: 72.22 kB / 0.6987 GB, free: 3.008 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008386/0.6396, allocations: 1.546 MB / 0.7002 GB, free: 1.449 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0007083/0.6404, allocations: 0.8721 MB / 0.7011 GB, free: 0.5859 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002159/0.6406, allocations: 64 kB / 0.7012 GB, free: 0.5234 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0001827/0.6408, allocations: 436.5 kB / 0.7016 GB, free: 92 kB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004701/0.6455, allocations: 2.523 MB / 0.704 GB, free: 13.56 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005149/0.6506, allocations: 3.429 MB / 0.7074 GB, free: 9.75 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005154/0.6558, allocations: 2.964 MB / 0.7103 GB, free: 6.766 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.371e-05/0.6558, allocations: 8 kB / 0.7103 GB, free: 6.758 MB / 0.5294 GB Notification: Performance of matching and sorting (n=398) (initialization): time 0.02276/0.6786, allocations: 10.2 MB / 0.7203 GB, free: 12.49 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 0.0005761/0.6792, allocations: 0.8862 MB / 0.7211 GB, free: 11.23 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.389e-05/0.6793, allocations: 28 kB / 0.7211 GB, free: 11.2 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01809/0.6974, allocations: 5.672 MB / 0.7267 GB, free: 5.512 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003908/0.7013, allocations: 0.9828 MB / 0.7276 GB, free: 4.527 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0329/0.7342, allocations: 21.59 MB / 0.7487 GB, free: 14.71 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003666/0.7379, allocations: 0.5575 MB / 0.7493 GB, free: 14.15 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003277/0.7382, allocations: 147.9 kB / 0.7494 GB, free: 14.01 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 1.128e-05/0.7383, allocations: 4 kB / 0.7494 GB, free: 14 MB / 0.5762 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01838/0.7567, allocations: 8.405 MB / 0.7576 GB, free: 5.551 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.56e-05/0.7567, allocations: 31.94 kB / 0.7577 GB, free: 5.52 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01187/0.7686, allocations: 3.54 MB / 0.7611 GB, free: 1.973 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004489/0.7731, allocations: 1.131 MB / 0.7622 GB, free: 0.8398 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01812/0.7913, allocations: 11.81 MB / 0.7738 GB, free: 4.895 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003619/0.7949, allocations: 0.5264 MB / 0.7743 GB, free: 4.367 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003365/0.7953, allocations: 148 kB / 0.7744 GB, free: 4.223 MB / 0.5919 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 (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%) 42} * Non-linear torn systems: 1 {6 42} Notification: Performance of prepare postOptimizeDAE: time 0.002825/0.7981, allocations: 1.616 MB / 0.776 GB, free: 2.594 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000492/0.7986, allocations: 197.6 kB / 0.7762 GB, free: 2.398 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0224/0.821, allocations: 9.836 MB / 0.7858 GB, free: 8.508 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.438e-05/0.8211, allocations: 24 kB / 0.7858 GB, free: 8.484 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.735e-05/0.8211, allocations: 21.59 kB / 0.7858 GB, free: 8.465 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.397e-05/0.8212, allocations: 15.95 kB / 0.7858 GB, free: 8.449 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.03284/0.854, allocations: 15.15 MB / 0.8006 GB, free: 9.137 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.167e-05/0.8541, allocations: 9 kB / 0.8006 GB, free: 9.129 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003023/0.8571, allocations: 0.741 MB / 0.8014 GB, free: 8.387 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01812/0.8753, allocations: 5.342 MB / 0.8066 GB, free: 3.035 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005238/0.8758, allocations: 71.95 kB / 0.8067 GB, free: 2.965 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.3683/1.244, allocations: 20.38 MB / 0.8266 GB, free: 208.6 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.021e-05/1.244, allocations: 14.25 kB / 0.8266 GB, free: 208.6 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02206/1.266, allocations: 9.356 MB / 0.8357 GB, free: 207.7 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001449/1.268, allocations: 0.691 MB / 0.8364 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003251/1.268, allocations: 56.67 kB / 0.8364 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002853/1.271, allocations: 0.5091 MB / 0.8369 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006228/1.272, allocations: 215.3 kB / 0.8371 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002391/1.272, allocations: 93.45 kB / 0.8372 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.001579/1.273, allocations: 0.9892 MB / 0.8382 GB, free: 207.5 MB / 0.6387 GB Notification: Performance of sort global known variables: time 2e-07/1.273, allocations: 0.625 kB / 0.8382 GB, free: 207.5 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.004995/1.278, allocations: 1.759 MB / 0.8399 GB, free: 207.5 MB / 0.6387 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 (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%) 42} * Non-linear torn systems: 1 {6 42} Notification: Performance of Backend phase and start with SimCode phase: time 0.02075/1.299, allocations: 10.01 MB / 0.8497 GB, free: 205.5 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.02203/1.321, allocations: 11.3 MB / 0.8607 GB, free: 202.1 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 1.075e-05/1.321, allocations: 0 / 0.8607 GB, free: 202.1 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.008453/1.33, allocations: 4.133 MB / 0.8648 GB, free: 200.9 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002008/1.332, allocations: 257.4 kB / 0.865 GB, free: 200.7 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05262/1.384, allocations: 29.02 MB / 0.8933 GB, free: 175.1 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002291/1.387, allocations: 2.854 MB / 0.8961 GB, free: 172.2 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.004388/1.391, allocations: 1.659 MB / 0.8977 GB, free: 170.5 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001323/1.393, allocations: 1.218 MB / 0.8989 GB, free: 169.3 MB / 0.6387 GB Notification: Performance of SimCode: time 8.11e-07/1.393, allocations: 3.938 kB / 0.8989 GB, free: 169.3 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.09787/1.49, allocations: 89.86 MB / 0.9867 GB, free: 79.95 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001375/1.491, allocations: 273.2 kB / 0.987 GB, free: 79.59 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.167/4.657, allocations: 4 kB / 0.987 GB, free: 79.59 MB / 0.6387 GB (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_DY_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_DY.fmu > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DY.pipe 2>&1) Environment - environmentSimulation: