Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.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 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.YY,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY,fileNamePrefix="IBPSA_latest_IBPSA_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 0.0007491/0.0007491, 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 0.0007941/0.000794, allocations: 175.5 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 1.273/1.273, allocations: 223.2 MB / 240.6 MB, free: 5.422 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.6088/0.6088, allocations: 113.7 MB / 405.5 MB, free: 4.602 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003055/0.0003055, allocations: 8.656 kB / 493.2 MB, free: 8.543 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.119/0.1193, allocations: 77.11 MB / 0.5569 GB, free: 11.63 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY): time 0.01706/0.1364, allocations: 17.73 MB / 0.5743 GB, free: 9.84 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.009068/0.1455, allocations: 6.812 MB / 0.5809 GB, free: 3.012 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.000926/0.1464, allocations: 47.88 kB / 0.5809 GB, free: 2.965 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0008102/0.1473, allocations: 413 kB / 0.5813 GB, free: 2.559 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002163/0.1494, allocations: 1.214 MB / 0.5825 GB, free: 1.34 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002013/0.1515, allocations: 0.7911 MB / 0.5833 GB, free: 0.5508 MB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.2373/0.3887, allocations: 6.975 MB / 0.5901 GB, free: 13.39 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01261/0.4014, allocations: 8.604 MB / 0.5985 GB, free: 12.07 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.003856/0.4053, allocations: 1.846 MB / 0.6003 GB, free: 12.07 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004788/0.4101, allocations: 2.803 MB / 0.6031 GB, free: 11.75 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0005684/0.4107, allocations: 256.8 kB / 0.6033 GB, free: 11.75 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001808/0.4125, allocations: 0.6998 MB / 0.604 GB, free: 11.73 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002076/0.4146, allocations: 2.036 MB / 0.606 GB, free: 11.61 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0009274/0.4155, allocations: 0.7609 MB / 0.6067 GB, free: 11.45 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.005323/0.4208, allocations: 7.106 MB / 0.6137 GB, free: 8.141 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.698e-06/0.4208, allocations: 0 / 0.6137 GB, free: 8.141 MB / 446.1 MB Notification: Performance of FrontEnd: time 2.073e-06/0.4208, allocations: 0 / 0.6137 GB, free: 8.141 MB / 446.1 MB Notification: Performance of Transformations before backend: time 0.0001522/0.421, allocations: 2.438 kB / 0.6137 GB, free: 8.141 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: 1083 * Number of variables: 1083 Notification: Performance of Generate backend data structure: time 0.00602/0.427, allocations: 3.304 MB / 0.6169 GB, free: 6.219 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.341e-05/0.4271, allocations: 9.656 kB / 0.6169 GB, free: 6.219 MB / 446.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008257/0.4279, allocations: 0.5955 MB / 0.6175 GB, free: 6.055 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01009/0.438, allocations: 2.383 MB / 0.6198 GB, free: 4.977 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00439/0.4424, allocations: 2.263 MB / 0.622 GB, free: 3.836 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001541/0.4426, allocations: 291.7 kB / 0.6223 GB, free: 3.715 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007189/0.4433, allocations: 390.5 kB / 0.6227 GB, free: 3.531 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01344/0.4568, allocations: 7.595 MB / 0.6301 GB, free: 11.85 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 6.974e-05/0.4569, allocations: 11.94 kB / 0.6301 GB, free: 11.84 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004362/0.4573, allocations: 164.7 kB / 0.6302 GB, free: 11.69 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004155/0.4578, allocations: 342.6 kB / 0.6306 GB, free: 11.35 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01366/0.4714, allocations: 7.229 MB / 0.6376 GB, free: 4.113 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 0.02972/0.5012, allocations: 28.49 MB / 0.6655 GB, free: 5.43 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.006085/0.5073, allocations: 3.665 MB / 0.669 GB, free: 1.609 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.003855/0.5112, allocations: 1.999 MB / 0.671 GB, free: 15.59 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001949/0.5114, allocations: 116.6 kB / 0.6711 GB, free: 15.46 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.528e-05/0.5114, allocations: 59.81 kB / 0.6712 GB, free: 15.39 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=176): time 4.709e-06/0.5114, allocations: 8 kB / 0.6712 GB, free: 15.39 MB / 0.4981 GB Notification: Performance of matching and sorting (n=221): time 0.07121/0.5827, allocations: 24.72 MB / 0.6953 GB, free: 6.594 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001781/0.5829, allocations: 231.6 kB / 0.6955 GB, free: 6.32 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002617/0.5855, allocations: 1.575 MB / 0.6971 GB, free: 4.73 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.0005022/0.586, allocations: 61.7 kB / 0.6971 GB, free: 4.664 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.001121/0.5871, allocations: 1.723 MB / 0.6988 GB, free: 2.93 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0008409/0.588, allocations: 0.7639 MB / 0.6995 GB, free: 2.172 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002181/0.5882, allocations: 67.94 kB / 0.6996 GB, free: 2.105 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0002482/0.5885, allocations: 432.5 kB / 0.7 GB, free: 1.676 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004982/0.5935, allocations: 2.449 MB / 0.7024 GB, free: 15.22 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005642/0.5991, allocations: 3.561 MB / 0.7059 GB, free: 11.16 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.005542/0.6047, allocations: 2.935 MB / 0.7088 GB, free: 8.23 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.746e-05/0.6047, allocations: 12 kB / 0.7088 GB, free: 8.219 MB / 0.5294 GB Notification: Performance of matching and sorting (n=400) (initialization): time 0.0235/0.6282, allocations: 9.985 MB / 0.7185 GB, free: 14.21 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 0.001051/0.6293, allocations: 1.121 MB / 0.7196 GB, free: 12.61 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.135e-05/0.6294, allocations: 36 kB / 0.7197 GB, free: 12.57 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01818/0.6476, allocations: 5.475 MB / 0.725 GB, free: 7.086 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004107/0.6517, allocations: 1.03 MB / 0.726 GB, free: 6.055 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03115/0.6829, allocations: 19.3 MB / 0.7449 GB, free: 2.52 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003657/0.6866, allocations: 0.5806 MB / 0.7454 GB, free: 1.938 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002839/0.6869, allocations: 162.4 kB / 0.7456 GB, free: 1.781 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 8.617e-06/0.6869, allocations: 4 kB / 0.7456 GB, free: 1.777 MB / 0.5606 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01809/0.705, allocations: 8.281 MB / 0.7537 GB, free: 9.488 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.457e-05/0.7051, allocations: 36 kB / 0.7537 GB, free: 9.453 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01145/0.7166, allocations: 3.448 MB / 0.7571 GB, free: 6 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004247/0.7208, allocations: 1.15 MB / 0.7582 GB, free: 4.848 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01637/0.7372, allocations: 10.62 MB / 0.7686 GB, free: 10.09 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003473/0.7407, allocations: 0.5342 MB / 0.7691 GB, free: 9.559 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003093/0.7411, allocations: 163.9 kB / 0.7692 GB, free: 9.398 MB / 0.5919 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 0.002788/0.7438, allocations: 1.694 MB / 0.7709 GB, free: 7.691 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004772/0.7443, allocations: 207.1 kB / 0.7711 GB, free: 7.488 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02073/0.7651, allocations: 8.761 MB / 0.7796 GB, free: 14.69 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.465e-05/0.7651, allocations: 24 kB / 0.7797 GB, free: 14.67 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.262e-05/0.7651, allocations: 8 kB / 0.7797 GB, free: 14.66 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.235e-05/0.7652, allocations: 15.95 kB / 0.7797 GB, free: 14.64 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02858/0.7938, allocations: 14.59 MB / 0.7939 GB, free: 15.89 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.626e-05/0.7938, allocations: 8 kB / 0.7939 GB, free: 15.88 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002746/0.7966, allocations: 0.7143 MB / 0.7946 GB, free: 15.17 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01668/0.8133, allocations: 5.135 MB / 0.7997 GB, free: 10.02 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003157/0.8136, allocations: 67.91 kB / 0.7997 GB, free: 9.953 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02823/0.8418, allocations: 18.2 MB / 0.8175 GB, free: 7.477 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.117e-05/0.8419, allocations: 15.92 kB / 0.8175 GB, free: 7.461 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2595/1.101, allocations: 8.829 MB / 0.8261 GB, free: 207.4 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001591/1.103, allocations: 0.6601 MB / 0.8268 GB, free: 207.3 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003494/1.103, allocations: 48.5 kB / 0.8268 GB, free: 207.3 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002708/1.106, allocations: 0.4961 MB / 0.8273 GB, free: 207.3 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0005265/1.107, allocations: 183.5 kB / 0.8275 GB, free: 207.3 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002005/1.107, allocations: 82.5 kB / 0.8276 GB, free: 207.3 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.001605/1.108, allocations: 1.049 MB / 0.8286 GB, free: 207.2 MB / 0.6387 GB Notification: Performance of sort global known variables: time 2.2e-07/1.108, allocations: 0 / 0.8286 GB, free: 207.2 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.006031/1.114, allocations: 1.727 MB / 0.8303 GB, free: 207.2 MB / 0.6387 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 0.02133/1.136, allocations: 9.482 MB / 0.8395 GB, free: 205.9 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.02244/1.158, allocations: 10.84 MB / 0.8501 GB, free: 203.8 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 8.927e-06/1.158, allocations: 0 / 0.8501 GB, free: 203.8 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.007697/1.166, allocations: 3.828 MB / 0.8539 GB, free: 202.6 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001814/1.168, allocations: 249.2 kB / 0.8541 GB, free: 202.5 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.04881/1.217, allocations: 28.53 MB / 0.882 GB, free: 186.1 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002376/1.219, allocations: 2.902 MB / 0.8848 GB, free: 183.2 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.004546/1.224, allocations: 1.668 MB / 0.8864 GB, free: 181.6 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001367/1.225, allocations: 1.28 MB / 0.8877 GB, free: 180.3 MB / 0.6387 GB Notification: Performance of SimCode: time 7.81e-07/1.225, allocations: 0 / 0.8877 GB, free: 180.3 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.09353/1.319, allocations: 86.55 MB / 0.9722 GB, free: 94.19 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001699/1.319, allocations: 273.6 kB / 0.9724 GB, free: 93.84 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 3.035/4.354, allocations: 4 kB / 0.9725 GB, free: 93.84 MB / 0.6387 GB (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YY.fmu > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YY.pipe 2>&1) Environment - environmentSimulation: