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 0.001371/0.001371, allocations: 99.64 kB / 18.95 MB, free: 2.668 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 0.001859/0.001859, allocations: 211.6 kB / 22.24 MB, free: 5.258 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 1.428/1.428, allocations: 230.6 MB / 256 MB, free: 7.789 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 master/package.mo): time 0.00421/0.00421, allocations: 291.9 kB / 312.7 MB, free: 2.609 MB / 238.1 MB
"
[Timeout remaining time 180]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/BuildingSystems master/package.mo): time 1.261/1.261, allocations: 180.6 MB / 0.5369 GB, free: 14.55 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 master/package.mo)
Using package NcDataReader2 with version 2.5.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/NcDataReader2 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 0.002975/0.002975, allocations: 109.8 kB / 0.7396 GB, free: 28.1 MB / 0.5294 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1649/0.1679, allocations: 95.37 MB / 0.8327 GB, free: 8.27 MB / 0.5762 GB
Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02486/0.1928, allocations: 17.93 MB / 0.8503 GB, free: 6.273 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.01234/0.2051, allocations: 6.743 MB / 0.8568 GB, free: 15.51 MB / 0.6075 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001286/0.2064, allocations: 63.75 kB / 0.8569 GB, free: 15.45 MB / 0.6075 GB
Notification: Performance of NFTyping.typeComponents: time 0.003935/0.2103, allocations: 1.487 MB / 0.8584 GB, free: 13.96 MB / 0.6075 GB
Notification: Performance of NFTyping.typeBindings: time 0.003419/0.2137, allocations: 1.455 MB / 0.8598 GB, free: 12.5 MB / 0.6075 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003405/0.2171, allocations: 1.261 MB / 0.861 GB, free: 11.23 MB / 0.6075 GB
Notification: Performance of NFFlatten.flatten: time 0.006665/0.2238, allocations: 5.484 MB / 0.8664 GB, free: 5.738 MB / 0.6075 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.004911/0.2287, allocations: 3.371 MB / 0.8697 GB, free: 2.27 MB / 0.6075 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003615/0.2323, allocations: 2.419 MB / 0.872 GB, free: 15.84 MB / 0.6231 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.004863/0.2372, allocations: 3.015 MB / 0.875 GB, free: 12.82 MB / 0.6231 GB
Notification: Performance of NFPackage.collectConstants: time 0.001017/0.2382, allocations: 0.5195 MB / 0.8755 GB, free: 12.3 MB / 0.6231 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002493/0.2407, allocations: 1.198 MB / 0.8766 GB, free: 11.1 MB / 0.6231 GB
Notification: Performance of NFScalarize.scalarize: time 0.00265/0.2434, allocations: 2.3 MB / 0.8789 GB, free: 8.797 MB / 0.6231 GB
Notification: Performance of NFVerifyModel.verify: time 0.002511/0.2459, allocations: 1.794 MB / 0.8806 GB, free: 6.996 MB / 0.6231 GB
Notification: Performance of NFConvertDAE.convert: time 0.009443/0.2553, allocations: 7.831 MB / 0.8883 GB, free: 15.14 MB / 0.6387 GB
Notification: Performance of FrontEnd - DAE generated: time 7.954e-06/0.2553, allocations: 4 kB / 0.8883 GB, free: 15.14 MB / 0.6387 GB
Notification: Performance of FrontEnd: time 1.663e-06/0.2553, allocations: 0 / 0.8883 GB, free: 15.14 MB / 0.6387 GB
Notification: Performance of Transformations before backend: time 0.0001511/0.2555, allocations: 0 / 0.8883 GB, free: 15.14 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 0.008355/0.2638, allocations: 3.836 MB / 0.892 GB, free: 11.25 MB / 0.6387 GB
Notification: Performance of prepare preOptimizeDAE: time 4.778e-05/0.2639, allocations: 13.94 kB / 0.892 GB, free: 11.24 MB / 0.6387 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008544/0.2647, allocations: 0.5465 MB / 0.8926 GB, free: 10.69 MB / 0.6387 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01297/0.2777, allocations: 2.429 MB / 0.8949 GB, free: 8.254 MB / 0.6387 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006083/0.2838, allocations: 2.177 MB / 0.8971 GB, free: 6.047 MB / 0.6387 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002692/0.284, allocations: 271.2 kB / 0.8973 GB, free: 5.781 MB / 0.6387 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001064/0.2851, allocations: 348 kB / 0.8977 GB, free: 5.441 MB / 0.6387 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01542/0.3005, allocations: 7.234 MB / 0.9047 GB, free: 14.09 MB / 0.6544 GB
Notification: Performance of preOpt findStateOrder (simulation): time 7.543e-05/0.3006, allocations: 3.938 kB / 0.9047 GB, free: 14.09 MB / 0.6544 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004393/0.301, allocations: 148 kB / 0.9049 GB, free: 13.94 MB / 0.6544 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004942/0.3015, allocations: 334.1 kB / 0.9052 GB, free: 13.61 MB / 0.6544 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01636/0.3179, allocations: 7.036 MB / 0.9121 GB, free: 6.566 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 0.03175/0.3496, allocations: 18.5 MB / 0.9301 GB, free: 3.477 MB / 0.67 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008183/0.3578, allocations: 3.726 MB / 0.9338 GB, free: 15.71 MB / 0.6856 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006153/0.364, allocations: 2.522 MB / 0.9362 GB, free: 13.18 MB / 0.6856 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000195/0.3642, allocations: 45.97 kB / 0.9363 GB, free: 13.13 MB / 0.6856 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.298e-05/0.3642, allocations: 56.5 kB / 0.9363 GB, free: 13.07 MB / 0.6856 GB
Notification: Performance of pre-optimization done (n=208): time 4.578e-06/0.3642, allocations: 0 / 0.9363 GB, free: 13.07 MB / 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 0.1093/0.4735, allocations: 30.8 MB / 0.9664 GB, free: 14.27 MB / 0.7169 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000153/0.4737, allocations: 243.5 kB / 0.9666 GB, free: 13.99 MB / 0.7169 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002372/0.4761, allocations: 1.523 MB / 0.9681 GB, free: 12.46 MB / 0.7169 GB
Notification: Performance of collectPreVariables (initialization): time 0.0004239/0.4765, allocations: 65.7 kB / 0.9682 GB, free: 12.39 MB / 0.7169 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001187/0.4777, allocations: 1.55 MB / 0.9697 GB, free: 10.82 MB / 0.7169 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001093/0.4788, allocations: 0.9644 MB / 0.9707 GB, free: 9.848 MB / 0.7169 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001202/0.48, allocations: 0.636 MB / 0.9713 GB, free: 9.203 MB / 0.7169 GB
Notification: Performance of setup shared object (initialization): time 0.0001366/0.4801, allocations: 313.1 kB / 0.9716 GB, free: 8.895 MB / 0.7169 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006471/0.4866, allocations: 2.686 MB / 0.9742 GB, free: 6.199 MB / 0.7169 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007813/0.4944, allocations: 3.643 MB / 0.9778 GB, free: 2.164 MB / 0.7169 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.3796/0.874, allocations: 6.4 MB / 0.984 GB, free: 130.2 MB / 0.7169 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.822e-05/0.874, allocations: 7.594 kB / 0.984 GB, free: 130.2 MB / 0.7169 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 0.02946/0.9035, allocations: 10.8 MB / 0.9946 GB, free: 127.5 MB / 0.7169 GB
Notification: Performance of prepare postOptimizeDAE: time 4.066e-05/0.9035, allocations: 20.59 kB / 0.9946 GB, free: 127.5 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.201e-05/0.9036, allocations: 28.67 kB / 0.9946 GB, free: 127.5 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01906/0.9226, allocations: 5.528 MB / 1 GB, free: 126.8 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004158/0.9268, allocations: 0.9883 MB / 1.001 GB, free: 126.7 MB / 0.7169 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03473/0.9615, allocations: 27.48 MB / 1.028 GB, free: 104.8 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004262/0.9658, allocations: 0.5842 MB / 1.028 GB, free: 104.2 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003777/0.9662, allocations: 151.9 kB / 1.029 GB, free: 104.1 MB / 0.7169 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006569/0.9727, allocations: 3.984 MB / 1.032 GB, free: 100.1 MB / 0.7169 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005298/0.978, allocations: 3.6 MB / 1.036 GB, free: 96.08 MB / 0.7169 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.08012/1.058, allocations: 24.47 MB / 1.06 GB, free: 71.18 MB / 0.7169 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.803e-05/1.058, allocations: 8 kB / 1.06 GB, free: 71.17 MB / 0.7169 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 0.02269/1.081, allocations: 10.17 MB / 1.07 GB, free: 60.98 MB / 0.7169 GB
Notification: Performance of prepare postOptimizeDAE: time 3.735e-05/1.081, allocations: 16 kB / 1.07 GB, free: 60.97 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.324e-05/1.081, allocations: 24.38 kB / 1.07 GB, free: 60.95 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01389/1.095, allocations: 4.319 MB / 1.074 GB, free: 56.61 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004382/1.099, allocations: 1.042 MB / 1.075 GB, free: 55.57 MB / 0.7169 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02797/1.127, allocations: 26.27 MB / 1.101 GB, free: 28.76 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004291/1.131, allocations: 0.5526 MB / 1.101 GB, free: 28.21 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003423/1.132, allocations: 155.9 kB / 1.101 GB, free: 28.05 MB / 0.7169 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 0.0008285/1.133, allocations: 399.4 kB / 1.102 GB, free: 27.68 MB / 0.7169 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005042/1.133, allocations: 206.7 kB / 1.102 GB, free: 27.47 MB / 0.7169 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 0.02278/1.156, allocations: 9.933 MB / 1.112 GB, free: 17.51 MB / 0.7169 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.423e-05/1.156, allocations: 24 kB / 1.112 GB, free: 17.48 MB / 0.7169 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.937e-05/1.156, allocations: 12 kB / 1.112 GB, free: 17.47 MB / 0.7169 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.858e-05/1.156, allocations: 15.95 kB / 1.112 GB, free: 17.46 MB / 0.7169 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 0.03069/1.187, allocations: 15.36 MB / 1.127 GB, free: 1.98 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.371e-05/1.187, allocations: 8 kB / 1.127 GB, free: 1.973 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003104/1.19, allocations: 0.7338 MB / 1.127 GB, free: 1.238 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01851/1.208, allocations: 5.173 MB / 1.132 GB, free: 12.04 MB / 0.7325 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005456/1.209, allocations: 79.89 kB / 1.133 GB, free: 11.96 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04353/1.252, allocations: 26.54 MB / 1.158 GB, free: 1.023 MB / 0.7481 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.141e-05/1.252, allocations: 12.03 kB / 1.158 GB, free: 1.012 MB / 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 0.02718/1.28, allocations: 9.879 MB / 1.168 GB, free: 6.926 MB / 0.7637 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002312/1.282, allocations: 0.6567 MB / 1.169 GB, free: 6.27 MB / 0.7637 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004754/1.282, allocations: 59.73 kB / 1.169 GB, free: 6.215 MB / 0.7637 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00367/1.286, allocations: 0.5108 MB / 1.169 GB, free: 5.703 MB / 0.7637 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007833/1.287, allocations: 238.2 kB / 1.17 GB, free: 5.469 MB / 0.7637 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003638/1.287, allocations: 91.95 kB / 1.17 GB, free: 5.379 MB / 0.7637 GB
Notification: Performance of sorting global known variables: time 0.001706/1.289, allocations: 1.009 MB / 1.171 GB, free: 4.367 MB / 0.7637 GB
Notification: Performance of sort global known variables: time 1.1e-07/1.289, allocations: 0 / 1.171 GB, free: 4.367 MB / 0.7637 GB
Notification: Performance of remove unused functions: time 0.005776/1.295, allocations: 1.85 MB / 1.172 GB, free: 2.52 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 0.02725/1.322, allocations: 10.53 MB / 1.183 GB, free: 7.773 MB / 0.7794 GB
Notification: Performance of simCode: created initialization part: time 0.03073/1.353, allocations: 12.03 MB / 1.194 GB, free: 11.63 MB / 0.795 GB
Notification: Performance of simCode: created event and clocks part: time 2.063e-05/1.353, allocations: 8.062 kB / 1.194 GB, free: 11.62 MB / 0.795 GB
Notification: Performance of simCode: created simulation system equations: time 0.01127/1.364, allocations: 4.255 MB / 1.199 GB, free: 7.336 MB / 0.795 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002106/1.366, allocations: 283.7 kB / 1.199 GB, free: 7.066 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 0.1032/1.469, allocations: 42.12 MB / 1.24 GB, free: 11.73 MB / 0.8419 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003475/1.473, allocations: 2.282 MB / 1.242 GB, free: 9.402 MB / 0.8419 GB
Notification: Performance of simCode: alias equations: time 0.004616/1.477, allocations: 1.661 MB / 1.244 GB, free: 7.738 MB / 0.8419 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001896/1.479, allocations: 1.226 MB / 1.245 GB, free: 6.512 MB / 0.8419 GB
Notification: Performance of SimCode: time 1.062e-06/1.479, allocations: 0 / 1.245 GB, free: 6.512 MB / 0.8419 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.5558/2.035, allocations: 104.3 MB / 1.347 GB, free: 323.6 MB / 0.92 GB
Notification: Performance of buildModelFMU: Generate platform static: time 16.06/18.1, allocations: 11.19 kB / 1.347 GB, free: 323.6 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: 22.43038374185562]
Failed to read output from testmodel.py, exit status != 0:
18.26702942373231 18.288623893 18.029122586
Calling exit ...
<OMPython.OMCSessionZMQ object at 0x7f2f04f9efb0>