Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.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: translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD")
translateModel(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001256/0.001256, allocations: 109.2 kB / 16.41 MB, free: 6.402 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001243/0.001243, allocations: 193.2 kB / 17.34 MB, free: 5.691 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.356/1.356, allocations: 222.9 MB / 241 MB, free: 15.09 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA 4.0.0-master/package.mo): time 0.7631/0.7631, allocations: 126.1 MB / 417.3 MB, free: 12.8 MB / 334.1 MB
Notification: Performance of FrontEnd - loaded program: time 0.001236/0.001236, allocations: 63.48 kB / 0.5732 GB, free: 27.09 MB / 446.1 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1733/0.1745, allocations: 78.7 MB / 0.65 GB, free: 4.016 MB / 494.1 MB
Notification: Performance of NFInst.instantiate(IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD): time 0.01919/0.1938, allocations: 18.24 MB / 0.6679 GB, free: 1.707 MB / 0.4981 GB
Notification: Performance of NFInst.instExpressions: time 0.01037/0.2042, allocations: 6.851 MB / 0.6745 GB, free: 10.84 MB / 0.5137 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.00158/0.2058, allocations: 63.81 kB / 0.6746 GB, free: 10.77 MB / 0.5137 GB
Notification: Performance of NFTyping.typeComponents: time 0.003963/0.2098, allocations: 1.473 MB / 0.676 GB, free: 9.297 MB / 0.5137 GB
Notification: Performance of NFTyping.typeBindings: time 0.004113/0.2139, allocations: 1.443 MB / 0.6775 GB, free: 7.848 MB / 0.5137 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003922/0.2178, allocations: 1.273 MB / 0.6787 GB, free: 6.574 MB / 0.5137 GB
Notification: Performance of NFFlatten.flatten: time 0.006827/0.2247, allocations: 5.464 MB / 0.684 GB, free: 1.098 MB / 0.5137 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.007476/0.2322, allocations: 7.128 MB / 0.691 GB, free: 9.859 MB / 0.5294 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003395/0.2356, allocations: 2.369 MB / 0.6933 GB, free: 7.484 MB / 0.5294 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.003775/0.2394, allocations: 2.968 MB / 0.6962 GB, free: 4.504 MB / 0.5294 GB
Notification: Performance of NFPackage.collectConstants: time 0.0007426/0.2401, allocations: 0.5156 MB / 0.6967 GB, free: 3.988 MB / 0.5294 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002201/0.2424, allocations: 1.272 MB / 0.698 GB, free: 2.715 MB / 0.5294 GB
Notification: Performance of NFScalarize.scalarize: time 0.00194/0.2443, allocations: 2.246 MB / 0.7001 GB, free: 476 kB / 0.5294 GB
Notification: Performance of NFVerifyModel.verify: time 0.002395/0.2467, allocations: 2.19 MB / 0.7023 GB, free: 14.27 MB / 0.545 GB
Notification: Performance of NFConvertDAE.convert: time 0.007912/0.2546, allocations: 7.8 MB / 0.7099 GB, free: 6.441 MB / 0.545 GB
Notification: Performance of FrontEnd - DAE generated: time 7.524e-06/0.2547, allocations: 4 kB / 0.7099 GB, free: 6.438 MB / 0.545 GB
Notification: Performance of FrontEnd: time 2.174e-06/0.2547, allocations: 0 / 0.7099 GB, free: 6.438 MB / 0.545 GB
Notification: Performance of Transformations before backend: time 0.0001687/0.2549, allocations: 0 / 0.7099 GB, free: 6.438 MB / 0.545 GB
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 0.008199/0.2631, allocations: 3.911 MB / 0.7137 GB, free: 2.461 MB / 0.545 GB
Notification: Performance of prepare preOptimizeDAE: time 3.995e-05/0.2631, allocations: 12.03 kB / 0.7137 GB, free: 2.449 MB / 0.545 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01295/0.2761, allocations: 2.425 MB / 0.7161 GB, free: 20 kB / 0.545 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00489/0.281, allocations: 2.199 MB / 0.7183 GB, free: 13.78 MB / 0.5606 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001968/0.2812, allocations: 275.5 kB / 0.7185 GB, free: 13.51 MB / 0.5606 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.000905/0.2821, allocations: 351.9 kB / 0.7189 GB, free: 13.16 MB / 0.5606 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01389/0.296, allocations: 7.154 MB / 0.7258 GB, free: 5.906 MB / 0.5606 GB
Notification: Performance of preOpt findStateOrder (simulation): time 7.132e-05/0.2961, allocations: 7.938 kB / 0.7258 GB, free: 5.898 MB / 0.5606 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004105/0.2966, allocations: 156 kB / 0.726 GB, free: 5.746 MB / 0.5606 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004298/0.297, allocations: 330.1 kB / 0.7263 GB, free: 5.422 MB / 0.5606 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01543/0.3124, allocations: 7.051 MB / 0.7332 GB, free: 14.36 MB / 0.5762 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.4685/0.781, allocations: 26.53 MB / 0.7591 GB, free: 74.23 MB / 0.5762 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008876/0.7899, allocations: 5.001 MB / 0.764 GB, free: 71.51 MB / 0.5762 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006254/0.7962, allocations: 2.605 MB / 0.7665 GB, free: 70.75 MB / 0.5762 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000263/0.7965, allocations: 132.6 kB / 0.7667 GB, free: 70.65 MB / 0.5762 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.237e-05/0.7965, allocations: 70.75 kB / 0.7667 GB, free: 70.59 MB / 0.5762 GB
Notification: Performance of pre-optimization done (n=208): time 4.128e-06/0.7966, allocations: 0.5 kB / 0.7667 GB, free: 70.59 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.conv2.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.conv2.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 0.09535/0.8919, allocations: 31.18 MB / 0.7972 GB, free: 52.94 MB / 0.5762 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.595e-05/0.892, allocations: 243.5 kB / 0.7974 GB, free: 52.65 MB / 0.5762 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001899/0.8939, allocations: 1.476 MB / 0.7988 GB, free: 51.19 MB / 0.5762 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006457/0.8946, allocations: 69.7 kB / 0.7989 GB, free: 51.11 MB / 0.5762 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006582/0.8953, allocations: 1.55 MB / 0.8004 GB, free: 49.76 MB / 0.5762 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0007427/0.896, allocations: 0.9634 MB / 0.8014 GB, free: 48.81 MB / 0.5762 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009666/0.897, allocations: 0.6359 MB / 0.802 GB, free: 48.16 MB / 0.5762 GB
Notification: Performance of setup shared object (initialization): time 4.323e-05/0.897, allocations: 305.1 kB / 0.8023 GB, free: 47.86 MB / 0.5762 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004976/0.902, allocations: 2.69 MB / 0.8049 GB, free: 45.16 MB / 0.5762 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005342/0.9074, allocations: 3.571 MB / 0.8084 GB, free: 41.21 MB / 0.5762 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01033/0.9177, allocations: 6.394 MB / 0.8146 GB, free: 34.43 MB / 0.5762 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.79e-05/0.9178, allocations: 12 kB / 0.8147 GB, free: 34.41 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.conv2.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.conv2.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 0.02381/0.9416, allocations: 11 MB / 0.8254 GB, free: 23.31 MB / 0.5762 GB
Notification: Performance of prepare postOptimizeDAE: time 4.352e-05/0.9416, allocations: 17.66 kB / 0.8254 GB, free: 23.3 MB / 0.5762 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.133e-05/0.9417, allocations: 24 kB / 0.8254 GB, free: 23.27 MB / 0.5762 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01766/0.9594, allocations: 5.556 MB / 0.8309 GB, free: 17.7 MB / 0.5762 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004239/0.9636, allocations: 0.9984 MB / 0.8318 GB, free: 16.7 MB / 0.5762 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03704/1.001, allocations: 28.2 MB / 0.8594 GB, free: 4.09 MB / 0.5919 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004499/1.005, allocations: 0.5771 MB / 0.8599 GB, free: 3.512 MB / 0.5919 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004773/1.006, allocations: 159.9 kB / 0.8601 GB, free: 3.355 MB / 0.5919 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.008169/1.014, allocations: 3.98 MB / 0.864 GB, free: 15.37 MB / 0.6075 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007316/1.021, allocations: 3.524 MB / 0.8674 GB, free: 11.46 MB / 0.6075 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08876/1.11, allocations: 24.62 MB / 0.8915 GB, free: 2.336 MB / 0.6231 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.163e-05/1.11, allocations: 11.98 kB / 0.8915 GB, free: 2.324 MB / 0.6231 GB
Warning: The linear system: 
1 : transformer.conv1.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.conv1.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 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[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 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[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_p[1] ;
  line2.v2_n[1] ;
  line2.v1_n[1] ;
  line2.v1_p[1]
]
  =
[
  -loadRL.load1.v[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.conv2.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]
]
 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_lambda0): time 0.02612/1.136, allocations: 10.54 MB / 0.9018 GB, free: 7.641 MB / 0.6387 GB
Notification: Performance of prepare postOptimizeDAE: time 4.587e-05/1.136, allocations: 16 kB / 0.9018 GB, free: 7.625 MB / 0.6387 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.569e-05/1.136, allocations: 28 kB / 0.9018 GB, free: 7.598 MB / 0.6387 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01499/1.151, allocations: 4.317 MB / 0.906 GB, free: 3.262 MB / 0.6387 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005286/1.157, allocations: 1.041 MB / 0.907 GB, free: 2.219 MB / 0.6387 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03631/1.193, allocations: 27.18 MB / 0.9336 GB, free: 6.328 MB / 0.67 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004794/1.198, allocations: 0.5576 MB / 0.9341 GB, free: 5.77 MB / 0.67 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004668/1.198, allocations: 151.9 kB / 0.9343 GB, free: 5.621 MB / 0.67 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.i1[2]) - line2.i3[2] - line2.i2[2]
         0.0 = (-line2.i1[1]) - line2.i3[1] - line2.i2[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 0.001037/1.199, allocations: 403.3 kB / 0.9346 GB, free: 5.219 MB / 0.67 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006238/1.2, allocations: 210.7 kB / 0.9348 GB, free: 5.012 MB / 0.67 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 : transformer.conv2.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.conv2.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 postOpt wrapFunctionCalls (simulation): time 0.02651/1.227, allocations: 10.17 MB / 0.9448 GB, free: 10.77 MB / 0.6856 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.418e-05/1.227, allocations: 27.94 kB / 0.9448 GB, free: 10.74 MB / 0.6856 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.503e-05/1.227, allocations: 12 kB / 0.9448 GB, free: 10.73 MB / 0.6856 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.361e-05/1.227, allocations: 15.95 kB / 0.9448 GB, free: 10.71 MB / 0.6856 GB
Warning: The linear system: 
1 : 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]
2 : loadRL.load1.v[1] = line2.v1_p[1] - line2.v2_p[1]
3 : 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]
4 : transformer.conv2.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.v2_n[1] ;
  line2.v1_n[1] ;
  line2.v1_p[1] ;
  line2.v2_p[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] ;
  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.conv2.V2[1]
]
 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 0.03674/1.264, allocations: 16.31 MB / 0.9608 GB, free: 10.21 MB / 0.7012 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.244e-05/1.264, allocations: 8 kB / 0.9608 GB, free: 10.21 MB / 0.7012 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003766/1.267, allocations: 0.7414 MB / 0.9615 GB, free: 9.465 MB / 0.7012 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01878/1.286, allocations: 5.177 MB / 0.9665 GB, free: 4.27 MB / 0.7012 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0006658/1.287, allocations: 67.95 kB / 0.9666 GB, free: 4.203 MB / 0.7012 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0402/1.327, allocations: 27.25 MB / 0.9932 GB, free: 8.477 MB / 0.7325 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.165e-05/1.327, allocations: 19.78 kB / 0.9932 GB, free: 8.461 MB / 0.7325 GB
Warning: The linear system: 
1 : 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]
2 : transformer.conv2.V2[1] = line2.v1_n[1] - line2.v2_n[1]
3 : 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]
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.v2_p[1] ;
  line2.v1_p[1] ;
  line2.v1_n[1] ;
  line2.v2_n[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.conv2.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]
]
 might be structurally or numerically singular for variable line2.v2_n[1] since U(4,4) = 0.0. It might be hard to solve. Compilation continues anyway.
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02598/1.353, allocations: 10.14 MB / 1.003 GB, free: 14.06 MB / 0.7481 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002275/1.355, allocations: 0.726 MB / 1.004 GB, free: 13.31 MB / 0.7481 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005565/1.356, allocations: 52 kB / 1.004 GB, free: 13.26 MB / 0.7481 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00367/1.36, allocations: 0.5109 MB / 1.004 GB, free: 12.75 MB / 0.7481 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000832/1.361, allocations: 226.3 kB / 1.005 GB, free: 12.53 MB / 0.7481 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002493/1.361, allocations: 95.95 kB / 1.005 GB, free: 12.44 MB / 0.7481 GB
Notification: Performance of sorting global known variables: time 0.001532/1.362, allocations: 0.9972 MB / 1.006 GB, free: 11.44 MB / 0.7481 GB
Notification: Performance of sort global known variables: time 1.61e-07/1.362, allocations: 0 / 1.006 GB, free: 11.44 MB / 0.7481 GB
Notification: Performance of remove unused functions: time 0.006497/1.369, allocations: 1.852 MB / 1.007 GB, free: 9.586 MB / 0.7481 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)}
Notification: Performance of Backend phase and start with SimCode phase: time 0.0004317/1.369, allocations: 190.7 kB / 1.008 GB, free: 9.387 MB / 0.7481 GB
Notification: Performance of simCode: created initialization part: time 0.02994/1.399, allocations: 12.46 MB / 1.02 GB, free: 12.82 MB / 0.7637 GB
Notification: Performance of simCode: created event and clocks part: time 1.217e-05/1.399, allocations: 4 kB / 1.02 GB, free: 12.82 MB / 0.7637 GB
Notification: Performance of simCode: created simulation system equations: time 0.01101/1.41, allocations: 4.407 MB / 1.024 GB, free: 8.375 MB / 0.7637 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003271/1.414, allocations: 301 kB / 1.024 GB, free: 8.086 MB / 0.7637 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.4461/1.86, allocations: 9.571 MB / 1.034 GB, free: 254.3 MB / 0.7637 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004914/1.865, allocations: 2.85 MB / 1.037 GB, free: 253.5 MB / 0.7637 GB
Notification: Performance of simCode: alias equations: time 0.00583/1.871, allocations: 1.654 MB / 1.038 GB, free: 253.4 MB / 0.7637 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008123/1.871, allocations: 170.5 kB / 1.038 GB, free: 253.4 MB / 0.7637 GB
Notification: Performance of SimCode: time 1.784e-06/1.871, allocations: 0.9062 kB / 1.038 GB, free: 253.4 MB / 0.7637 GB
Notification: Performance of Templates: time 0.1071/1.979, allocations: 79.32 MB / 1.116 GB, free: 201.7 MB / 0.7637 GB
make -j1 -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.makefile
(rm -f IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; mkfifo IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe >> ../files/IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.sim & ./IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD  -abortSlowSimulation -alarm=480 -lv LOG_STATS > IBPSA_latest_IBPSA.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD.pipe 2>&1)