Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.001229/0.001229, allocations: 108.1 kB / 16.45 MB, free: 6.508 MB / 14.72 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.001282/0.001282, allocations: 215.2 kB / 19.43 MB, free: 3.648 MB / 14.72 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 1.371/1.371, allocations: 230.6 MB / 252.8 MB, free: 9.098 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo): time 0.002411/0.002411, allocations: 280 kB / 309.1 MB, free: 3.996 MB / 238.1 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo): time 1.182/1.182, allocations: 180.9 MB / 0.5333 GB, free: 13.83 MB / 382.1 MB
"
[Timeout remaining time 179]
Using package BuildingSystems with version 2.0.0-beta (/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems 2.0.0-master/package.mo)
Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 2.5.1-master/package.mo)
Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo)
Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo)
Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo)
Running command: "" <> buildModelFMU(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660]
"Notification: NcDataReader2 requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: BuildingSystems requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: Performance of FrontEnd - loaded program: time 0.002762/0.002762, allocations: 101.7 kB / 0.7343 GB, free: 28.31 MB / 0.5294 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1635/0.1663, allocations: 95.34 MB / 0.8274 GB, free: 9.828 MB / 0.5762 GB
Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02323/0.1895, allocations: 18.62 MB / 0.8456 GB, free: 7.137 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.01147/0.201, allocations: 6.926 MB / 0.8524 GB, free: 196 kB / 0.5919 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001528/0.2025, allocations: 63.75 kB / 0.8525 GB, free: 132 kB / 0.5919 GB
Notification: Performance of NFTyping.typeComponents: time 0.0038/0.2063, allocations: 1.497 MB / 0.8539 GB, free: 14.63 MB / 0.6075 GB
Notification: Performance of NFTyping.typeBindings: time 0.003579/0.2099, allocations: 1.447 MB / 0.8553 GB, free: 13.18 MB / 0.6075 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003601/0.2135, allocations: 1.275 MB / 0.8566 GB, free: 11.9 MB / 0.6075 GB
Notification: Performance of NFFlatten.flatten: time 0.007006/0.2205, allocations: 5.476 MB / 0.8619 GB, free: 6.41 MB / 0.6075 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.006959/0.2275, allocations: 5.179 MB / 0.867 GB, free: 1.121 MB / 0.6075 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003655/0.2311, allocations: 2.408 MB / 0.8693 GB, free: 14.71 MB / 0.6231 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.004972/0.2361, allocations: 3.171 MB / 0.8724 GB, free: 11.53 MB / 0.6231 GB
Notification: Performance of NFPackage.collectConstants: time 0.001003/0.2371, allocations: 0.5195 MB / 0.8729 GB, free: 11.01 MB / 0.6231 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002554/0.2396, allocations: 1.291 MB / 0.8742 GB, free: 9.715 MB / 0.6231 GB
Notification: Performance of NFScalarize.scalarize: time 0.002333/0.242, allocations: 2.303 MB / 0.8765 GB, free: 7.406 MB / 0.6231 GB
Notification: Performance of NFVerifyModel.verify: time 0.002647/0.2446, allocations: 2.183 MB / 0.8786 GB, free: 5.215 MB / 0.6231 GB
Notification: Performance of NFConvertDAE.convert: time 0.008384/0.253, allocations: 7.804 MB / 0.8862 GB, free: 13.39 MB / 0.6387 GB
Notification: Performance of FrontEnd - DAE generated: time 6.802e-06/0.253, allocations: 4 kB / 0.8862 GB, free: 13.38 MB / 0.6387 GB
Notification: Performance of FrontEnd: time 1.743e-06/0.253, allocations: 0 / 0.8862 GB, free: 13.38 MB / 0.6387 GB
Notification: Performance of Transformations before backend: time 0.0001551/0.2532, allocations: 0 / 0.8862 GB, free: 13.38 MB / 0.6387 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 0.007988/0.2612, allocations: 3.915 MB / 0.89 GB, free: 9.402 MB / 0.6387 GB
Notification: Performance of prepare preOptimizeDAE: time 4.606e-05/0.2612, allocations: 8.031 kB / 0.89 GB, free: 9.395 MB / 0.6387 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0007748/0.262, allocations: 0.5504 MB / 0.8906 GB, free: 8.836 MB / 0.6387 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01307/0.275, allocations: 2.425 MB / 0.8929 GB, free: 6.406 MB / 0.6387 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004875/0.2799, allocations: 2.203 MB / 0.8951 GB, free: 4.16 MB / 0.6387 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002195/0.2801, allocations: 271.3 kB / 0.8954 GB, free: 3.895 MB / 0.6387 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007792/0.2809, allocations: 352 kB / 0.8957 GB, free: 3.551 MB / 0.6387 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01442/0.2953, allocations: 7.151 MB / 0.9027 GB, free: 12.3 MB / 0.6544 GB
Notification: Performance of preOpt findStateOrder (simulation): time 6.75e-05/0.2954, allocations: 7.953 kB / 0.9027 GB, free: 12.29 MB / 0.6544 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004489/0.2959, allocations: 148 kB / 0.9028 GB, free: 12.14 MB / 0.6544 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004757/0.2963, allocations: 330.1 kB / 0.9031 GB, free: 11.82 MB / 0.6544 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01619/0.3125, allocations: 7.051 MB / 0.91 GB, free: 4.754 MB / 0.6544 GB
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 0.03339/0.3459, allocations: 26.59 MB / 0.936 GB, free: 7.984 MB / 0.6856 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008417/0.3543, allocations: 4.87 MB / 0.9407 GB, free: 2.805 MB / 0.6856 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006296/0.3606, allocations: 2.542 MB / 0.9432 GB, free: 256 kB / 0.6856 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002849/0.3609, allocations: 131 kB / 0.9434 GB, free: 108 kB / 0.6856 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.968e-05/0.361, allocations: 60.5 kB / 0.9434 GB, free: 36 kB / 0.6856 GB
Notification: Performance of pre-optimization done (n=208): time 3.917e-06/0.361, allocations: 0 / 0.9434 GB, free: 36 kB / 0.6856 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 0.1093/0.4703, allocations: 31.11 MB / 0.9738 GB, free: 0.8516 MB / 0.7169 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001457/0.4704, allocations: 235.6 kB / 0.974 GB, free: 0.5742 MB / 0.7169 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002275/0.4727, allocations: 1.473 MB / 0.9755 GB, free: 15.09 MB / 0.7325 GB
Notification: Performance of collectPreVariables (initialization): time 0.0004566/0.4731, allocations: 65.7 kB / 0.9755 GB, free: 15.02 MB / 0.7325 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001122/0.4743, allocations: 1.557 MB / 0.977 GB, free: 13.45 MB / 0.7325 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001266/0.4755, allocations: 0.9722 MB / 0.978 GB, free: 12.47 MB / 0.7325 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001214/0.4767, allocations: 0.636 MB / 0.9786 GB, free: 11.82 MB / 0.7325 GB
Notification: Performance of setup shared object (initialization): time 0.0001251/0.4769, allocations: 305.1 kB / 0.9789 GB, free: 11.52 MB / 0.7325 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006262/0.4831, allocations: 2.686 MB / 0.9815 GB, free: 8.828 MB / 0.7325 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007294/0.4904, allocations: 3.571 MB / 0.985 GB, free: 4.879 MB / 0.7325 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.3447/0.8351, allocations: 6.4 MB / 0.9913 GB, free: 145.8 MB / 0.7325 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.976e-05/0.8351, allocations: 7.656 kB / 0.9913 GB, free: 145.8 MB / 0.7325 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 0.02898/0.8641, allocations: 10.94 MB / 1.002 GB, free: 143.2 MB / 0.7325 GB
Notification: Performance of prepare postOptimizeDAE: time 6.848e-05/0.8642, allocations: 21.88 kB / 1.002 GB, free: 143.2 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.432e-05/0.8643, allocations: 25.97 kB / 1.002 GB, free: 143.2 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.019/0.8833, allocations: 5.542 MB / 1.007 GB, free: 142.6 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004225/0.8875, allocations: 0.9891 MB / 1.008 GB, free: 142.5 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03396/0.9214, allocations: 28.21 MB / 1.036 GB, free: 123.3 MB / 0.7325 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004223/0.9257, allocations: 0.5733 MB / 1.036 GB, free: 122.7 MB / 0.7325 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002882/0.926, allocations: 152 kB / 1.037 GB, free: 122.6 MB / 0.7325 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00626/0.9322, allocations: 3.98 MB / 1.041 GB, free: 118.6 MB / 0.7325 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00506/0.9373, allocations: 3.532 MB / 1.044 GB, free: 114.6 MB / 0.7325 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07689/1.014, allocations: 24.62 MB / 1.068 GB, free: 89.55 MB / 0.7325 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.208e-05/1.014, allocations: 9.125 kB / 1.068 GB, free: 89.54 MB / 0.7325 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 0.0222/1.036, allocations: 10.47 MB / 1.078 GB, free: 78.95 MB / 0.7325 GB
Notification: Performance of prepare postOptimizeDAE: time 2.9e-05/1.036, allocations: 16 kB / 1.078 GB, free: 78.94 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.331e-05/1.036, allocations: 28.03 kB / 1.078 GB, free: 78.91 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01352/1.05, allocations: 4.319 MB / 1.083 GB, free: 74.57 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004165/1.054, allocations: 1.042 MB / 1.084 GB, free: 73.53 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02668/1.081, allocations: 27.16 MB / 1.11 GB, free: 45.68 MB / 0.7325 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004133/1.085, allocations: 0.5569 MB / 1.111 GB, free: 45.12 MB / 0.7325 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003504/1.085, allocations: 159.8 kB / 1.111 GB, free: 44.97 MB / 0.7325 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.i3[2] - line2.i1[2]
         0.0 = (-line2.i2[1]) - line2.i3[1] - line2.i1[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 0.0007787/1.086, allocations: 395.3 kB / 1.111 GB, free: 44.59 MB / 0.7325 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.000492/1.087, allocations: 210.7 kB / 1.111 GB, free: 44.38 MB / 0.7325 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 0.02288/1.109, allocations: 10.09 MB / 1.121 GB, free: 34.23 MB / 0.7325 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.833e-05/1.109, allocations: 28 kB / 1.121 GB, free: 34.2 MB / 0.7325 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.797e-05/1.11, allocations: 16 kB / 1.121 GB, free: 34.19 MB / 0.7325 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.836e-05/1.11, allocations: 15.94 kB / 1.121 GB, free: 34.17 MB / 0.7325 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 0.02933/1.139, allocations: 16.18 MB / 1.137 GB, free: 17.81 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.466e-05/1.139, allocations: 8 kB / 1.137 GB, free: 17.8 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003147/1.142, allocations: 0.7419 MB / 1.138 GB, free: 17.06 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01646/1.159, allocations: 5.165 MB / 1.143 GB, free: 11.88 MB / 0.7325 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004841/1.159, allocations: 79.89 kB / 1.143 GB, free: 11.8 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03724/1.196, allocations: 27.27 MB / 1.17 GB, free: 40 kB / 0.7481 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.19e-05/1.196, allocations: 12.03 kB / 1.17 GB, free: 28 kB / 0.7481 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 0.0264/1.223, allocations: 10.02 MB / 1.179 GB, free: 5.766 MB / 0.7637 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001882/1.225, allocations: 0.7359 MB / 1.18 GB, free: 5.012 MB / 0.7637 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005584/1.225, allocations: 55.98 kB / 1.18 GB, free: 4.957 MB / 0.7637 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003607/1.229, allocations: 0.5109 MB / 1.181 GB, free: 4.445 MB / 0.7637 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007583/1.229, allocations: 226.3 kB / 1.181 GB, free: 4.227 MB / 0.7637 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000237/1.23, allocations: 103.9 kB / 1.181 GB, free: 4.125 MB / 0.7637 GB
Notification: Performance of sorting global known variables: time 0.001545/1.231, allocations: 1.001 MB / 1.182 GB, free: 3.121 MB / 0.7637 GB
Notification: Performance of sort global known variables: time 1.2e-07/1.231, allocations: 0 / 1.182 GB, free: 3.121 MB / 0.7637 GB
Notification: Performance of remove unused functions: time 0.00594/1.237, allocations: 1.852 MB / 1.184 GB, free: 1.27 MB / 0.7637 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 0.02665/1.264, allocations: 10.68 MB / 1.194 GB, free: 6.332 MB / 0.7794 GB
Notification: Performance of simCode: created initialization part: time 0.03023/1.294, allocations: 12.02 MB / 1.206 GB, free: 10.21 MB / 0.795 GB
Notification: Performance of simCode: created event and clocks part: time 9.458e-06/1.294, allocations: 0 / 1.206 GB, free: 10.21 MB / 0.795 GB
Notification: Performance of simCode: created simulation system equations: time 0.01108/1.305, allocations: 4.268 MB / 1.21 GB, free: 5.902 MB / 0.795 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002095/1.307, allocations: 293.9 kB / 1.21 GB, free: 5.625 MB / 0.795 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 0.09964/1.407, allocations: 42.33 MB / 1.252 GB, free: 10 MB / 0.8419 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003415/1.41, allocations: 2.853 MB / 1.254 GB, free: 7.117 MB / 0.8419 GB
Notification: Performance of simCode: alias equations: time 0.004406/1.415, allocations: 1.657 MB / 1.256 GB, free: 5.457 MB / 0.8419 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001991/1.417, allocations: 1.222 MB / 1.257 GB, free: 4.234 MB / 0.8419 GB
Notification: Performance of SimCode: time 1.082e-06/1.417, allocations: 0 / 1.257 GB, free: 4.234 MB / 0.8419 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.5024/1.919, allocations: 104.2 MB / 1.359 GB, free: 318.6 MB / 0.92 GB
Notification: Performance of buildModelFMU: Generate platform static: time 15.91/17.83, allocations: 6.344 kB / 1.359 GB, free: 318.6 MB / 0.92 GB
"
[Timeout remaining time 642]
(rm -f BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & python3 -m fmpy simulate  --output-file BuildingSystems_BuildingSystems.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 BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD.fmu > BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1) [Timeout 52.5]
[Calling os._exit(0), Time elapsed: 21.8690920448862]
Failed to read output from testmodel.py, exit status != 0:
17.964158738963306 17.984216258 17.727431632
Calling exit ...
<OMPython.OMCSessionZMQ object at 0x7f9770eb17e0>