Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr IBPSA_latest_IBPSA.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 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.UnbalancedStepDown.YY,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YY",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_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 0.0007193/0.0007191, 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 0.0007586/0.0007586, 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 1.34/1.34, allocations: 223.3 MB / 240.6 MB, free: 5.418 MB / 190.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.622/0.622, allocations: 113.7 MB / 405.5 MB, free: 4.605 MB / 334.1 MB Notification: Performance of FrontEnd - loaded program: time 0.0003216/0.0003217, allocations: 12 kB / 493.2 MB, free: 8.57 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1284/0.1287, allocations: 77.11 MB / 0.5569 GB, free: 11.66 MB / 430.1 MB Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY): time 0.01748/0.1462, allocations: 17.82 MB / 0.5743 GB, free: 9.785 MB / 446.1 MB Notification: Performance of NFInst.instExpressions: time 0.009487/0.1557, allocations: 6.843 MB / 0.581 GB, free: 2.926 MB / 446.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001175/0.1569, allocations: 43.88 kB / 0.5811 GB, free: 2.883 MB / 446.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001017/0.158, allocations: 417 kB / 0.5815 GB, free: 2.473 MB / 446.1 MB Notification: Performance of NFTyping.typeBindings: time 0.002542/0.1605, allocations: 1.226 MB / 0.5827 GB, free: 1.242 MB / 446.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001922/0.1625, allocations: 0.7914 MB / 0.5834 GB, free: 460 kB / 446.1 MB Notification: Performance of NFFlatten.flatten: time 0.2464/0.4088, allocations: 7.013 MB / 0.5903 GB, free: 13.41 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.01274/0.4216, allocations: 8.64 MB / 0.5987 GB, free: 12.08 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00361/0.4253, allocations: 1.854 MB / 0.6005 GB, free: 12.07 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004826/0.4301, allocations: 2.809 MB / 0.6033 GB, free: 11.73 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0005951/0.4307, allocations: 261.3 kB / 0.6035 GB, free: 11.73 MB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001795/0.4325, allocations: 0.7023 MB / 0.6042 GB, free: 11.71 MB / 446.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002055/0.4346, allocations: 2.043 MB / 0.6062 GB, free: 11.58 MB / 446.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0009748/0.4356, allocations: 0.7644 MB / 0.6069 GB, free: 11.43 MB / 446.1 MB Notification: Performance of NFConvertDAE.convert: time 0.005285/0.4409, allocations: 7.136 MB / 0.6139 GB, free: 8.016 MB / 446.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.751e-06/0.4409, allocations: 0 / 0.6139 GB, free: 8.016 MB / 446.1 MB Notification: Performance of FrontEnd: time 2.645e-06/0.4409, allocations: 1.812 kB / 0.6139 GB, free: 8.016 MB / 446.1 MB Notification: Performance of Transformations before backend: time 0.0001442/0.441, allocations: 3.938 kB / 0.6139 GB, free: 8.012 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: 1094 * Number of variables: 1094 Notification: Performance of Generate backend data structure: time 0.00589/0.4469, allocations: 3.335 MB / 0.6172 GB, free: 6.074 MB / 446.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.844e-05/0.447, allocations: 9.219 kB / 0.6172 GB, free: 6.074 MB / 446.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0007608/0.4477, allocations: 0.5976 MB / 0.6178 GB, free: 5.91 MB / 446.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009715/0.4575, allocations: 2.393 MB / 0.6201 GB, free: 4.828 MB / 446.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004005/0.4615, allocations: 2.271 MB / 0.6223 GB, free: 3.672 MB / 446.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001713/0.4617, allocations: 292.6 kB / 0.6226 GB, free: 3.551 MB / 446.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007195/0.4624, allocations: 388.3 kB / 0.623 GB, free: 3.223 MB / 446.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01478/0.4772, allocations: 7.633 MB / 0.6304 GB, free: 11.51 MB / 462.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 7.885e-05/0.4773, allocations: 15.84 kB / 0.6304 GB, free: 11.49 MB / 462.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004735/0.4778, allocations: 161.3 kB / 0.6306 GB, free: 11.34 MB / 462.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004468/0.4783, allocations: 346.7 kB / 0.6309 GB, free: 11 MB / 462.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01425/0.4925, allocations: 7.237 MB / 0.638 GB, free: 3.758 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 0.03228/0.5248, allocations: 28.93 MB / 0.6662 GB, free: 4.547 MB / 494.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.006319/0.5312, allocations: 3.665 MB / 0.6698 GB, free: 0.7227 MB / 494.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.003961/0.5352, allocations: 1.992 MB / 0.6718 GB, free: 14.71 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002083/0.5354, allocations: 129.1 kB / 0.6719 GB, free: 14.57 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.645e-05/0.5354, allocations: 59.81 kB / 0.672 GB, free: 14.51 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=176): time 3.476e-06/0.5354, allocations: 0 / 0.672 GB, free: 14.51 MB / 0.4981 GB Notification: Performance of matching and sorting (n=221): time 0.06728/0.6027, allocations: 24.77 MB / 0.6961 GB, free: 5.656 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001087/0.6029, allocations: 239.6 kB / 0.6964 GB, free: 5.375 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002086/0.605, allocations: 1.613 MB / 0.6979 GB, free: 3.75 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.0002688/0.6053, allocations: 61.7 kB / 0.698 GB, free: 3.684 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.0009819/0.6062, allocations: 1.745 MB / 0.6997 GB, free: 1.926 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006638/0.6069, allocations: 0.7541 MB / 0.7004 GB, free: 1.18 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000217/0.6071, allocations: 64 kB / 0.7005 GB, free: 1.117 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0002092/0.6074, allocations: 444.5 kB / 0.7009 GB, free: 0.6758 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004552/0.6119, allocations: 2.445 MB / 0.7033 GB, free: 14.23 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00516/0.6171, allocations: 3.563 MB / 0.7068 GB, free: 10.17 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004997/0.6221, allocations: 2.935 MB / 0.7097 GB, free: 7.234 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.452e-05/0.6221, allocations: 12 kB / 0.7097 GB, free: 7.223 MB / 0.5294 GB Notification: Performance of matching and sorting (n=400) (initialization): time 0.022/0.6441, allocations: 9.981 MB / 0.7194 GB, free: 13.21 MB / 0.545 GB Notification: Performance of prepare postOptimizeDAE: time 0.0007372/0.6449, allocations: 1.124 MB / 0.7205 GB, free: 11.61 MB / 0.545 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.698e-05/0.6449, allocations: 40 kB / 0.7206 GB, free: 11.57 MB / 0.545 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01714/0.6621, allocations: 5.468 MB / 0.7259 GB, free: 6.094 MB / 0.545 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003864/0.666, allocations: 1.034 MB / 0.7269 GB, free: 5.059 MB / 0.545 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02997/0.696, allocations: 19.31 MB / 0.7458 GB, free: 1.512 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003621/0.6996, allocations: 0.5728 MB / 0.7463 GB, free: 0.9375 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002819/0.6999, allocations: 167.9 kB / 0.7465 GB, free: 0.7734 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 7.404e-06/0.6999, allocations: 4 kB / 0.7465 GB, free: 0.7695 MB / 0.5606 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01758/0.7175, allocations: 8.277 MB / 0.7546 GB, free: 8.484 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.448e-05/0.7176, allocations: 36.03 kB / 0.7546 GB, free: 8.449 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01119/0.7288, allocations: 3.448 MB / 0.758 GB, free: 4.996 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004063/0.7329, allocations: 1.143 MB / 0.7591 GB, free: 3.852 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01628/0.7491, allocations: 10.62 MB / 0.7695 GB, free: 9.098 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003329/0.7525, allocations: 0.542 MB / 0.77 GB, free: 8.555 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002835/0.7528, allocations: 171.9 kB / 0.7701 GB, free: 8.387 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 0.002859/0.7557, allocations: 1.702 MB / 0.7718 GB, free: 6.672 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000463/0.7561, allocations: 197.7 kB / 0.772 GB, free: 6.477 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02049/0.7766, allocations: 8.78 MB / 0.7806 GB, free: 13.66 MB / 0.6075 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.69e-05/0.7767, allocations: 24 kB / 0.7806 GB, free: 13.64 MB / 0.6075 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.346e-05/0.7767, allocations: 8 kB / 0.7806 GB, free: 13.63 MB / 0.6075 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.767e-05/0.7768, allocations: 15.95 kB / 0.7806 GB, free: 13.62 MB / 0.6075 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0281/0.8049, allocations: 14.59 MB / 0.7949 GB, free: 14.86 MB / 0.6231 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.631e-05/0.8049, allocations: 4 kB / 0.7949 GB, free: 14.85 MB / 0.6231 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002793/0.8077, allocations: 0.7138 MB / 0.7956 GB, free: 14.14 MB / 0.6231 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01605/0.8238, allocations: 5.125 MB / 0.8006 GB, free: 9 MB / 0.6231 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003869/0.8242, allocations: 70.47 kB / 0.8006 GB, free: 8.934 MB / 0.6231 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02734/0.8515, allocations: 18.21 MB / 0.8184 GB, free: 6.441 MB / 0.6387 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.418e-06/0.8516, allocations: 15.94 kB / 0.8184 GB, free: 6.426 MB / 0.6387 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2956/1.147, allocations: 8.83 MB / 0.8271 GB, free: 207.7 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001836/1.149, allocations: 0.6602 MB / 0.8277 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003619/1.149, allocations: 57.66 kB / 0.8278 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002773/1.152, allocations: 0.4899 MB / 0.8282 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000678/1.153, allocations: 180.2 kB / 0.8284 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002097/1.153, allocations: 82.16 kB / 0.8285 GB, free: 207.6 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.002214/1.155, allocations: 1.078 MB / 0.8295 GB, free: 207.5 MB / 0.6387 GB Notification: Performance of sort global known variables: time 1.1e-07/1.155, allocations: 0 / 0.8295 GB, free: 207.5 MB / 0.6387 GB Notification: Performance of remove unused functions: time 0.007476/1.163, allocations: 1.736 MB / 0.8312 GB, free: 207.5 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 0.02569/1.189, allocations: 9.496 MB / 0.8405 GB, free: 206.1 MB / 0.6387 GB Notification: Performance of simCode: created initialization part: time 0.02623/1.215, allocations: 10.84 MB / 0.8511 GB, free: 203.8 MB / 0.6387 GB Notification: Performance of simCode: created event and clocks part: time 1.011e-05/1.215, allocations: 0 / 0.8511 GB, free: 203.8 MB / 0.6387 GB Notification: Performance of simCode: created simulation system equations: time 0.008194/1.223, allocations: 3.82 MB / 0.8548 GB, free: 202.7 MB / 0.6387 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002168/1.225, allocations: 269.8 kB / 0.8551 GB, free: 202.6 MB / 0.6387 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.05135/1.277, allocations: 27.79 MB / 0.8822 GB, free: 185.7 MB / 0.6387 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002697/1.279, allocations: 2.918 MB / 0.8851 GB, free: 182.8 MB / 0.6387 GB Notification: Performance of simCode: alias equations: time 0.004755/1.284, allocations: 1.679 MB / 0.8867 GB, free: 181.1 MB / 0.6387 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001481/1.286, allocations: 1.299 MB / 0.888 GB, free: 179.8 MB / 0.6387 GB Notification: Performance of SimCode: time 1.452e-06/1.286, allocations: 4 kB / 0.888 GB, free: 179.8 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1023/1.388, allocations: 87.39 MB / 0.9733 GB, free: 92.89 MB / 0.6387 GB Notification: Performance of buildModelFMU: configured platform static using cached values: time 0.0001911/1.388, allocations: 278.8 kB / 0.9736 GB, free: 92.53 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 2.934/4.322, allocations: 0 / 0.9736 GB, free: 92.53 MB / 0.6387 GB (rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.sim & /home/hudson/saved_omc/OMSimulator/install/linux/bin/OMSimulator --tempDir=temp_IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YY_fmu --startTime=0 --stopTime=1 --timeout=50 --tolerance=1e-06 IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YY.fmu > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YY.pipe 2>&1) Environment - environmentSimulation: