Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.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.YD,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",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 0.001059/0.001059, allocations: 107 kB / 16.27 MB, free: 5.93 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001041/0.001041, allocations: 186.9 kB / 17.2 MB, free: 5.574 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.28/1.28, allocations: 222.9 MB / 240.9 MB, free: 15.26 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7285/0.7285, allocations: 122.9 MB / 413.9 MB, free: 15.89 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001428/0.001428, allocations: 63.89 kB / 0.4912 GB, free: 7.281 MB / 414.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3233/0.3247, allocations: 77.93 MB / 0.5673 GB, free: 32.77 MB / 446.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.01932/0.3441, allocations: 18.24 MB / 0.5851 GB, free: 20.54 MB / 446.1 MB
Notification: Performance of NFInst.instExpressions: time 0.009812/0.354, allocations: 6.817 MB / 0.5918 GB, free: 15.18 MB / 446.1 MB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001571/0.3556, allocations: 58.28 kB / 0.5919 GB, free: 15.18 MB / 446.1 MB
Notification: Performance of NFTyping.typeComponents: time 0.003079/0.3587, allocations: 1.473 MB / 0.5933 GB, free: 14.02 MB / 446.1 MB
Notification: Performance of NFTyping.typeBindings: time 0.002852/0.3615, allocations: 1.429 MB / 0.5947 GB, free: 12.89 MB / 446.1 MB
Notification: Performance of NFTyping.typeClassSections: time 0.002557/0.3641, allocations: 1.265 MB / 0.5959 GB, free: 11.9 MB / 446.1 MB
Notification: Performance of NFFlatten.flatten: time 0.004631/0.3688, allocations: 5.467 MB / 0.6013 GB, free: 7.949 MB / 446.1 MB
Notification: Performance of NFFlatten.resolveConnections: time 0.005405/0.3742, allocations: 7.241 MB / 0.6083 GB, free: 0.6602 MB / 446.1 MB
Notification: Performance of NFEvalConstants.evaluate: time 0.002895/0.3771, allocations: 2.353 MB / 0.6106 GB, free: 14.3 MB / 462.1 MB
Notification: Performance of NFSimplifyModel.simplify: time 0.003384/0.3805, allocations: 2.972 MB / 0.6135 GB, free: 11.32 MB / 462.1 MB
Notification: Performance of NFPackage.collectConstants: time 0.000741/0.3812, allocations: 0.5156 MB / 0.614 GB, free: 10.8 MB / 462.1 MB
Notification: Performance of NFFlatten.collectFunctions: time 0.002202/0.3835, allocations: 1.268 MB / 0.6153 GB, free: 9.531 MB / 462.1 MB
Notification: Performance of NFScalarize.scalarize: time 0.001896/0.3854, allocations: 2.25 MB / 0.6175 GB, free: 7.277 MB / 462.1 MB
Notification: Performance of NFVerifyModel.verify: time 0.002349/0.3877, allocations: 2.187 MB / 0.6196 GB, free: 5.082 MB / 462.1 MB
Notification: Performance of NFConvertDAE.convert: time 0.007201/0.3949, allocations: 7.736 MB / 0.6272 GB, free: 13.32 MB / 478.1 MB
Notification: Performance of FrontEnd - DAE generated: time 7.554e-06/0.395, allocations: 7.984 kB / 0.6272 GB, free: 13.32 MB / 478.1 MB
Notification: Performance of FrontEnd: time 1.743e-06/0.395, allocations: 3.938 kB / 0.6272 GB, free: 13.31 MB / 478.1 MB
Notification: Performance of Transformations before backend: time 0.0001725/0.3952, allocations: 0 / 0.6272 GB, free: 13.31 MB / 478.1 MB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.007975/0.4031, allocations: 3.815 MB / 0.6309 GB, free: 9.438 MB / 478.1 MB
Notification: Performance of prepare preOptimizeDAE: time 5.721e-05/0.4032, allocations: 12.03 kB / 0.6309 GB, free: 9.426 MB / 478.1 MB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.000754/0.404, allocations: 0.5465 MB / 0.6314 GB, free: 8.871 MB / 478.1 MB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01251/0.4165, allocations: 2.411 MB / 0.6338 GB, free: 6.445 MB / 478.1 MB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004081/0.4206, allocations: 2.171 MB / 0.6359 GB, free: 4.23 MB / 478.1 MB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001755/0.4208, allocations: 271.3 kB / 0.6362 GB, free: 3.965 MB / 478.1 MB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007344/0.4215, allocations: 348 kB / 0.6365 GB, free: 3.625 MB / 478.1 MB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01251/0.4341, allocations: 7.155 MB / 0.6435 GB, free: 12.37 MB / 494.1 MB
Notification: Performance of preOpt findStateOrder (simulation): time 6.297e-05/0.4342, allocations: 7.938 kB / 0.6435 GB, free: 12.36 MB / 494.1 MB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004155/0.4346, allocations: 152 kB / 0.6436 GB, free: 12.21 MB / 494.1 MB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004131/0.435, allocations: 330.1 kB / 0.644 GB, free: 11.89 MB / 494.1 MB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01485/0.4499, allocations: 7.051 MB / 0.6508 GB, free: 4.828 MB / 494.1 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 0.02938/0.4793, allocations: 26.74 MB / 0.677 GB, free: 7.895 MB / 0.5137 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008297/0.4876, allocations: 4.987 MB / 0.6818 GB, free: 2.598 MB / 0.5137 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005839/0.4935, allocations: 2.6 MB / 0.6844 GB, free: 15.98 MB / 0.5294 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002697/0.4938, allocations: 127 kB / 0.6845 GB, free: 15.84 MB / 0.5294 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.137e-05/0.4938, allocations: 64.5 kB / 0.6846 GB, free: 15.77 MB / 0.5294 GB
Notification: Performance of pre-optimization done (n=208): time 3.707e-06/0.4938, allocations: 0 / 0.6846 GB, free: 15.77 MB / 0.5294 GB
Warning: The linear system: 
1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , 1.0 , -1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  -1.0 , 1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_n[1] ;
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1]
]
  =
[
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ;
  -transformer.conv1.V2[1]
]
 might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of matching and sorting (n=271): time 0.1004/0.5942, allocations: 30.96 MB / 0.7148 GB, free: 0.7109 MB / 0.545 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001242/0.5944, allocations: 239.6 kB / 0.715 GB, free: 440 kB / 0.545 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002101/0.5965, allocations: 1.469 MB / 0.7165 GB, free: 14.95 MB / 0.5606 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005539/0.5971, allocations: 69.7 kB / 0.7165 GB, free: 14.88 MB / 0.5606 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0009042/0.598, allocations: 1.493 MB / 0.718 GB, free: 13.36 MB / 0.5606 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0009399/0.5989, allocations: 0.9204 MB / 0.7189 GB, free: 12.43 MB / 0.5606 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001054/0.6, allocations: 0.6357 MB / 0.7195 GB, free: 11.79 MB / 0.5606 GB
Notification: Performance of setup shared object (initialization): time 8.148e-05/0.6001, allocations: 305.1 kB / 0.7198 GB, free: 11.48 MB / 0.5606 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005593/0.6057, allocations: 2.694 MB / 0.7224 GB, free: 8.781 MB / 0.5606 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006218/0.6119, allocations: 3.571 MB / 0.7259 GB, free: 4.828 MB / 0.5606 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01203/0.6239, allocations: 6.387 MB / 0.7321 GB, free: 14.04 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.832e-05/0.624, allocations: 12 kB / 0.7322 GB, free: 14.03 MB / 0.5762 GB
Warning: The linear system: 
1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , 1.0 , -1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  -1.0 , 1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_n[1] ;
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1]
]
  =
[
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ;
  -transformer.conv1.V2[1]
]
 might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of matching and sorting (n=410) (initialization): time 0.02789/0.6519, allocations: 11.02 MB / 0.7429 GB, free: 2.906 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 4.328e-05/0.652, allocations: 16.56 kB / 0.7429 GB, free: 2.891 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.248e-05/0.652, allocations: 36.03 kB / 0.743 GB, free: 2.859 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.2728/0.9248, allocations: 5.551 MB / 0.7484 GB, free: 152.8 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004442/0.9293, allocations: 0.9917 MB / 0.7494 GB, free: 152.8 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.037/0.9663, allocations: 28.18 MB / 0.7769 GB, free: 138.9 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004201/0.9705, allocations: 0.5742 MB / 0.7774 GB, free: 138.8 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003466/0.9709, allocations: 150.9 kB / 0.7776 GB, free: 138.8 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006469/0.9774, allocations: 3.984 MB / 0.7815 GB, free: 137.1 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005206/0.9826, allocations: 3.533 MB / 0.7849 GB, free: 134.6 MB / 0.5762 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07918/1.062, allocations: 24.66 MB / 0.809 GB, free: 111.5 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.693e-05/1.062, allocations: 8 kB / 0.809 GB, free: 111.5 MB / 0.5762 GB
Warning: The linear system: 
1 : transformer.conv3.V2[2] = line2.v3_n[2] - line2.v1_n[2]
2 : line2.v3_n[2] - line2.v3_p[2] = line2.Z31[1] * line2.i1[2] + line2.Z31[2] * line2.i1[1] + line2.Z32[1] * line2.i2[2] + line2.Z32[2] * line2.i2[1] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1]
3 : loadRL.load3.v[2] = line2.v3_p[2] - line2.v1_p[2]
4 : line2.v1_n[2] - line2.v1_p[2] = line2.Z11[1] * line2.i1[2] + line2.Z11[2] * line2.i1[1] + line2.Z12[1] * line2.i2[2] + line2.Z12[2] * line2.i2[1] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , -1.0 , 1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  1.0 , -1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_n[2] ;
  line2.v1_p[2] ;
  line2.v3_p[2] ;
  line2.v3_n[2]
]
  =
[
  -transformer.conv3.V2[2] ;
  line2.Z31[1] * line2.i1[2] + line2.Z33[1] * line2.i3[2] + line2.Z33[2] * line2.i3[1] + line2.Z32[2] * line2.i2[1] + line2.Z32[1] * line2.i2[2] + line2.Z31[2] * line2.i1[1] ;
  -loadRL.load3.v[2] ;
  line2.Z11[1] * line2.i1[2] + line2.Z13[1] * line2.i3[2] + line2.Z13[2] * line2.i3[1] + line2.Z12[2] * line2.i2[1] + line2.Z12[1] * line2.i2[2] + line2.Z11[2] * line2.i1[1]
]
 might be structurally or numerically singular for variable line2.v3_n[2] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Warning: The linear system: 
1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , -1.0 , 1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  1.0 , -1.0 , 0.0 , 0.0
]
  *
[
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1] ;
  line2.v1_n[1]
]
  =
[
  -transformer.conv1.V2[1] ;
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2]
]
 might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of matching and sorting (n=410) (initialization_lambda0): time 0.02191/1.084, allocations: 10.54 MB / 0.8193 GB, free: 101 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 2.563e-05/1.084, allocations: 19.09 kB / 0.8193 GB, free: 100.9 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.069e-05/1.084, allocations: 28 kB / 0.8194 GB, free: 100.9 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01349/1.097, allocations: 4.336 MB / 0.8236 GB, free: 96.56 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004098/1.101, allocations: 1.041 MB / 0.8246 GB, free: 95.52 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0263/1.128, allocations: 27.14 MB / 0.8511 GB, free: 67.71 MB / 0.5762 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004126/1.132, allocations: 0.5574 MB / 0.8517 GB, free: 67.16 MB / 0.5762 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002946/1.132, allocations: 151.9 kB / 0.8518 GB, free: 67.01 MB / 0.5762 GB
Warning: Assuming fixed start value for the following 2 variables:
         node4.wyeToDelta.delta.phase[3].v[2]:VARIABLE(flow=false unit = "V" fixed = true )  "Voltage vector" type: Real [3,2]
         node4.wyeToDelta.delta.phase[2].v[1]:VARIABLE(flow=false unit = "V" fixed = true )  "Voltage vector" type: Real [3,2]
Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization_lambda0 system:
         0.0 = (-line2.i2[2]) - line2.i1[2] - line2.i3[2]
         0.0 = (-line2.i2[1]) - line2.i1[1] - line2.i3[1].
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 119
 * 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 (301):
 * Single equations (assignments): 298
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 3
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 2 systems
   {(1,3,100.0%), (10,44,70.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(10,44)}
Notification: Performance of prepare postOptimizeDAE: time 0.0007229/1.133, allocations: 402.3 kB / 0.8522 GB, free: 66.62 MB / 0.5762 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004672/1.133, allocations: 201.6 kB / 0.8524 GB, free: 66.43 MB / 0.5762 GB
Warning: The linear system: 
1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , 1.0 , -1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  -1.0 , 1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_n[1] ;
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1]
]
  =
[
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ;
  -transformer.conv1.V2[1]
]
 might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0227/1.156, allocations: 10.16 MB / 0.8623 GB, free: 56.2 MB / 0.5762 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.774e-05/1.156, allocations: 32 kB / 0.8623 GB, free: 56.16 MB / 0.5762 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.718e-05/1.156, allocations: 12 kB / 0.8623 GB, free: 56.15 MB / 0.5762 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.924e-05/1.156, allocations: 11.95 kB / 0.8623 GB, free: 56.14 MB / 0.5762 GB
Warning: The linear system: 
1 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
2 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
3 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
4 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
[
  -1.0 , 0.0 , 0.0 , 1.0 ;
  0.0 , 0.0 , 1.0 , -1.0 ;
  0.0 , -1.0 , 1.0 , 0.0 ;
  -1.0 , 1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_p[1] ;
  line2.v1_n[1] ;
  line2.v2_n[1] ;
  line2.v2_p[1]
]
  =
[
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ;
  -transformer.conv1.V2[1] ;
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2]
]
 might be structurally or numerically singular for variable line2.v2_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02903/1.185, allocations: 16.32 MB / 0.8783 GB, free: 39.64 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.999e-05/1.185, allocations: 11.94 kB / 0.8783 GB, free: 39.63 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003071/1.188, allocations: 0.7337 MB / 0.879 GB, free: 38.9 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01662/1.205, allocations: 5.193 MB / 0.8841 GB, free: 33.69 MB / 0.5762 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005122/1.206, allocations: 75.95 kB / 0.8842 GB, free: 33.61 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03167/1.237, allocations: 27.25 MB / 0.9108 GB, free: 5.879 MB / 0.5762 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.462e-06/1.237, allocations: 12.03 kB / 0.9108 GB, free: 5.867 MB / 0.5762 GB
Warning: The linear system: 
1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , -1.0 , 1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  1.0 , -1.0 , 0.0 , 0.0
]
  *
[
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1] ;
  line2.v1_n[1]
]
  =
[
  -transformer.conv1.V2[1] ;
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2]
]
 might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02282/1.26, allocations: 10.1 MB / 0.9206 GB, free: 11.52 MB / 0.5919 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001451/1.262, allocations: 0.7228 MB / 0.9214 GB, free: 10.78 MB / 0.5919 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004135/1.262, allocations: 54.53 kB / 0.9214 GB, free: 10.73 MB / 0.5919 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003423/1.265, allocations: 0.5143 MB / 0.9219 GB, free: 10.21 MB / 0.5919 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006677/1.266, allocations: 226.3 kB / 0.9221 GB, free: 9.996 MB / 0.5919 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002101/1.266, allocations: 95.95 kB / 0.9222 GB, free: 9.902 MB / 0.5919 GB
Notification: Performance of sorting global known variables: time 0.001317/1.268, allocations: 1.001 MB / 0.9232 GB, free: 8.898 MB / 0.5919 GB
Notification: Performance of sort global known variables: time 1.9e-07/1.268, allocations: 0 / 0.9232 GB, free: 8.898 MB / 0.5919 GB
Notification: Performance of remove unused functions: time 0.005101/1.273, allocations: 1.852 MB / 0.925 GB, free: 7.047 MB / 0.5919 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 (165):
 * Single equations (assignments): 162
 * Array equations: 0
 * Algorithm blocks: 0
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (not torn): 0
 * Torn equation systems: 3
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems (#iteration vars, #inner vars, density): 2 systems
   {(10,44,70.0%), (1,3,100.0%)}
 * Non-linear torn systems (#iteration vars, #inner vars): 1 system
   {(10,44)}
Warning: The linear system: 
1 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
2 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
3 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
4 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , -1.0 , 1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  1.0 , -1.0 , 0.0 , 0.0
]
  *
[
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1] ;
  line2.v1_n[1]
]
  =
[
  -transformer.conv1.V2[1] ;
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2]
]
 might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of Backend phase and start with SimCode phase: time 0.0248/1.298, allocations: 10.76 MB / 0.9355 GB, free: 12.04 MB / 0.6075 GB
Notification: Performance of simCode: created initialization part: time 0.03246/1.33, allocations: 14.39 MB / 0.9496 GB, free: 13.57 MB / 0.6231 GB
Notification: Performance of simCode: created event and clocks part: time 1.824e-05/1.33, allocations: 4 kB / 0.9496 GB, free: 13.56 MB / 0.6231 GB
Notification: Performance of simCode: created simulation system equations: time 0.01136/1.342, allocations: 4.419 MB / 0.9539 GB, free: 9.105 MB / 0.6231 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002988/1.345, allocations: 285.9 kB / 0.9541 GB, free: 8.836 MB / 0.6231 GB
Warning: The linear system: 
1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
4 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
[
  1.0 , 0.0 , 0.0 , -1.0 ;
  0.0 , 0.0 , 1.0 , -1.0 ;
  0.0 , 1.0 , -1.0 , 0.0 ;
  -1.0 , 1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_n[1] ;
  line2.v2_n[1] ;
  line2.v2_p[1] ;
  line2.v1_p[1]
]
  =
[
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -loadRL.load1.v[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ;
  -transformer.conv1.V2[1]
]
 might be structurally or numerically singular for variable line2.v1_p[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Warning: The linear system: 
1 : line2.v1_n[1] - line2.v1_p[1] = line2.Z11[1] * line2.i1[1] - line2.Z11[2] * line2.i1[2] + line2.Z12[1] * line2.i2[1] - line2.Z12[2] * line2.i2[2] + line2.Z13[1] * line2.i3[1] - line2.Z13[2] * line2.i3[2]
2 : transformer.conv1.V2[1] = line2.v1_n[1] - line2.v2_n[1]
3 : line2.v2_n[1] - line2.v2_p[1] = line2.Z21[1] * line2.i1[1] - line2.Z21[2] * line2.i1[2] + line2.Z22[1] * line2.i2[1] - line2.Z22[2] * line2.i2[2] + line2.Z23[1] * line2.i3[1] - line2.Z23[2] * line2.i3[2]
4 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
[
  -1.0 , 0.0 , 0.0 , 1.0 ;
  0.0 , 0.0 , 1.0 , -1.0 ;
  0.0 , -1.0 , 1.0 , 0.0 ;
  -1.0 , 1.0 , 0.0 , 0.0
]
  *
[
  line2.v1_p[1] ;
  line2.v2_p[1] ;
  line2.v2_n[1] ;
  line2.v1_n[1]
]
  =
[
  line2.Z11[1] * line2.i1[1] + line2.Z13[1] * line2.i3[1] + line2.Z12[1] * line2.i2[1] - line2.Z11[2] * line2.i1[2] - line2.Z13[2] * line2.i3[2] - line2.Z12[2] * line2.i2[2] ;
  -transformer.conv1.V2[1] ;
  line2.Z21[1] * line2.i1[1] + line2.Z23[1] * line2.i3[1] + line2.Z22[1] * line2.i2[1] - line2.Z21[2] * line2.i1[2] - line2.Z23[2] * line2.i3[2] - line2.Z22[2] * line2.i2[2] ;
  -loadRL.load1.v[1]
]
 might be structurally or numerically singular for variable line2.v1_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.3296/1.674, allocations: 44.21 MB / 0.9973 GB, free: 215.7 MB / 0.6544 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003506/1.678, allocations: 2.85 MB / 1 GB, free: 214.9 MB / 0.6544 GB
Notification: Performance of simCode: alias equations: time 0.005147/1.683, allocations: 1.655 MB / 1.002 GB, free: 214.8 MB / 0.6544 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001489/1.684, allocations: 1.223 MB / 1.003 GB, free: 214.8 MB / 0.6544 GB
Notification: Performance of SimCode: time 1.172e-06/1.684, allocations: 0 / 1.003 GB, free: 214.8 MB / 0.6544 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1208/1.805, allocations: 102.1 MB / 1.103 GB, free: 136.5 MB / 0.6544 GB
Notification: Performance of buildModelFMU: Generate platform static: time 12.69/14.5, allocations: 18.77 kB / 1.103 GB, free: 136.5 MB / 0.6544 GB
(rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & python3 -m fmpy simulate  --output-file IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD_res.csv --start-time 0 --stop-time 1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 IBPSA_latest_IBPSA_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD.fmu > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)