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 0.001603/0.001603, allocations: 114.3 kB / 18.94 MB, free: 2.934 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 0.002023/0.002023, allocations: 215.2 kB / 22.25 MB, free: 5.082 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 1.411/1.411, allocations: 230.6 MB / 256 MB, free: 8.02 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 0.002509/0.002509, allocations: 294.9 kB / 312.7 MB, free: 2.91 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 1.177/1.177, allocations: 180.6 MB / 0.5369 GB, free: 13.04 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 0.002899/0.002899, allocations: 99.94 kB / 0.7397 GB, free: 28.16 MB / 0.5294 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1613/0.1642, allocations: 95.38 MB / 0.8328 GB, free: 8.594 MB / 0.5762 GB
Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02507/0.1893, allocations: 19.28 MB / 0.8517 GB, free: 5.246 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.01224/0.2015, allocations: 7.078 MB / 0.8586 GB, free: 14.15 MB / 0.6075 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001567/0.2031, allocations: 67.69 kB / 0.8586 GB, free: 14.08 MB / 0.6075 GB
Notification: Performance of NFTyping.typeComponents: time 0.004168/0.2073, allocations: 1.528 MB / 0.8601 GB, free: 12.55 MB / 0.6075 GB
Notification: Performance of NFTyping.typeBindings: time 0.003866/0.2111, allocations: 1.459 MB / 0.8616 GB, free: 11.09 MB / 0.6075 GB
Notification: Performance of NFTyping.typeClassSections: time 0.00345/0.2146, allocations: 1.296 MB / 0.8628 GB, free: 9.789 MB / 0.6075 GB
Notification: Performance of NFFlatten.flatten: time 0.007076/0.2217, allocations: 5.48 MB / 0.8682 GB, free: 4.297 MB / 0.6075 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.005377/0.2271, allocations: 3.406 MB / 0.8715 GB, free: 0.793 MB / 0.6075 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003967/0.231, allocations: 2.415 MB / 0.8739 GB, free: 14.37 MB / 0.6231 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.00556/0.2366, allocations: 3.171 MB / 0.877 GB, free: 11.19 MB / 0.6231 GB
Notification: Performance of NFPackage.collectConstants: time 0.001799/0.2384, allocations: 0.5156 MB / 0.8775 GB, free: 10.68 MB / 0.6231 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.00355/0.2419, allocations: 1.291 MB / 0.8787 GB, free: 9.383 MB / 0.6231 GB
Notification: Performance of NFScalarize.scalarize: time 0.003696/0.2456, allocations: 2.307 MB / 0.881 GB, free: 7.07 MB / 0.6231 GB
Notification: Performance of NFVerifyModel.verify: time 0.004553/0.2502, allocations: 2.187 MB / 0.8831 GB, free: 4.875 MB / 0.6231 GB
Notification: Performance of NFConvertDAE.convert: time 0.00994/0.2601, allocations: 7.8 MB / 0.8907 GB, free: 13.05 MB / 0.6387 GB
Notification: Performance of FrontEnd - DAE generated: time 5.791e-06/0.2601, allocations: 0 / 0.8907 GB, free: 13.05 MB / 0.6387 GB
Notification: Performance of FrontEnd: time 4.298e-06/0.2601, allocations: 4 kB / 0.8907 GB, free: 13.05 MB / 0.6387 GB
Notification: Performance of Transformations before backend: time 0.0002216/0.2603, allocations: 0 / 0.8907 GB, free: 13.05 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 0.01012/0.2705, allocations: 3.833 MB / 0.8945 GB, free: 9.168 MB / 0.6387 GB
Notification: Performance of prepare preOptimizeDAE: time 4.998e-05/0.2705, allocations: 9.344 kB / 0.8945 GB, free: 9.16 MB / 0.6387 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001155/0.2717, allocations: 0.5543 MB / 0.895 GB, free: 8.598 MB / 0.6387 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01302/0.2847, allocations: 2.429 MB / 0.8974 GB, free: 6.164 MB / 0.6387 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00604/0.2907, allocations: 2.173 MB / 0.8995 GB, free: 3.961 MB / 0.6387 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002801/0.291, allocations: 275.2 kB / 0.8998 GB, free: 3.691 MB / 0.6387 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.00132/0.2923, allocations: 347.9 kB / 0.9001 GB, free: 3.352 MB / 0.6387 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01663/0.309, allocations: 7.155 MB / 0.9071 GB, free: 12.1 MB / 0.6544 GB
Notification: Performance of preOpt findStateOrder (simulation): time 8.538e-05/0.309, allocations: 15.86 kB / 0.9071 GB, free: 12.08 MB / 0.6544 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0005317/0.3096, allocations: 152 kB / 0.9073 GB, free: 11.93 MB / 0.6544 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004745/0.3101, allocations: 326.1 kB / 0.9076 GB, free: 11.61 MB / 0.6544 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01753/0.3276, allocations: 7.047 MB / 0.9144 GB, free: 4.555 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 0.04066/0.3682, allocations: 26.1 MB / 0.9399 GB, free: 8.316 MB / 0.6856 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008263/0.3765, allocations: 3.741 MB / 0.9436 GB, free: 4.547 MB / 0.6856 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006136/0.3826, allocations: 2.518 MB / 0.946 GB, free: 2.008 MB / 0.6856 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002703/0.3829, allocations: 49.94 kB / 0.9461 GB, free: 1.961 MB / 0.6856 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.921e-05/0.383, allocations: 68.48 kB / 0.9462 GB, free: 1.883 MB / 0.6856 GB
Notification: Performance of pre-optimization done (n=208): time 4.117e-06/0.383, allocations: 0 / 0.9462 GB, free: 1.883 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 0.1039/0.4869, allocations: 30.8 MB / 0.9762 GB, free: 3.09 MB / 0.7169 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001477/0.487, allocations: 243.6 kB / 0.9765 GB, free: 2.805 MB / 0.7169 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002336/0.4894, allocations: 1.469 MB / 0.9779 GB, free: 1.328 MB / 0.7169 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005004/0.4899, allocations: 69.7 kB / 0.978 GB, free: 1.254 MB / 0.7169 GB
Notification: Performance of collectInitialEqns (initialization): time 0.3374/0.8273, allocations: 1.545 MB / 0.9795 GB, free: 133.3 MB / 0.7169 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001108/0.8284, allocations: 0.9682 MB / 0.9804 GB, free: 133.1 MB / 0.7169 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001213/0.8296, allocations: 0.6328 MB / 0.981 GB, free: 133 MB / 0.7169 GB
Notification: Performance of setup shared object (initialization): time 3.599e-05/0.8296, allocations: 313 kB / 0.9813 GB, free: 132.7 MB / 0.7169 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005887/0.8355, allocations: 2.689 MB / 0.984 GB, free: 132.4 MB / 0.7169 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006242/0.8417, allocations: 3.565 MB / 0.9875 GB, free: 130.6 MB / 0.7169 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01238/0.8541, allocations: 6.403 MB / 0.9937 GB, free: 127.6 MB / 0.7169 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.868e-05/0.8542, allocations: 7.688 kB / 0.9937 GB, free: 127.6 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 0.02688/0.881, allocations: 10.8 MB / 1.004 GB, free: 124.7 MB / 0.7169 GB
Notification: Performance of prepare postOptimizeDAE: time 4.402e-05/0.8811, allocations: 15.84 kB / 1.004 GB, free: 124.7 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.28e-05/0.8811, allocations: 27.66 kB / 1.004 GB, free: 124.7 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01817/0.8993, allocations: 5.536 MB / 1.01 GB, free: 122.6 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004063/0.9034, allocations: 0.9863 MB / 1.011 GB, free: 122.3 MB / 0.7169 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03413/0.9375, allocations: 27.9 MB / 1.038 GB, free: 95.59 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004125/0.9416, allocations: 0.5817 MB / 1.038 GB, free: 95.01 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003543/0.942, allocations: 147.9 kB / 1.039 GB, free: 94.87 MB / 0.7169 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.00667/0.9486, allocations: 3.985 MB / 1.043 GB, free: 90.88 MB / 0.7169 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005437/0.9541, allocations: 3.536 MB / 1.046 GB, free: 86.96 MB / 0.7169 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07924/1.033, allocations: 24.46 MB / 1.07 GB, free: 62.04 MB / 0.7169 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.075e-05/1.033, allocations: 8 kB / 1.07 GB, free: 62.04 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 0.02214/1.055, allocations: 10.17 MB / 1.08 GB, free: 51.8 MB / 0.7169 GB
Notification: Performance of prepare postOptimizeDAE: time 4.748e-05/1.056, allocations: 16 kB / 1.08 GB, free: 51.79 MB / 0.7169 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.794e-05/1.056, allocations: 28 kB / 1.08 GB, free: 51.76 MB / 0.7169 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01379/1.069, allocations: 4.319 MB / 1.084 GB, free: 47.42 MB / 0.7169 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004181/1.074, allocations: 1.041 MB / 1.085 GB, free: 46.38 MB / 0.7169 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02808/1.102, allocations: 26.74 MB / 1.111 GB, free: 19.05 MB / 0.7169 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004309/1.106, allocations: 0.5566 MB / 1.112 GB, free: 18.5 MB / 0.7169 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004801/1.106, allocations: 151.9 kB / 1.112 GB, free: 18.35 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 0.0008298/1.107, allocations: 401 kB / 1.112 GB, free: 17.96 MB / 0.7169 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005543/1.108, allocations: 210.7 kB / 1.112 GB, free: 17.76 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 0.02244/1.13, allocations: 9.935 MB / 1.122 GB, free: 7.793 MB / 0.7169 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.652e-05/1.13, allocations: 28 kB / 1.122 GB, free: 7.766 MB / 0.7169 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 1.69e-05/1.13, allocations: 12.55 kB / 1.122 GB, free: 7.754 MB / 0.7169 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.407e-05/1.13, allocations: 15.94 kB / 1.122 GB, free: 7.738 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 0.03491/1.165, allocations: 16.02 MB / 1.138 GB, free: 7.586 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.137e-05/1.165, allocations: 15.59 kB / 1.138 GB, free: 7.574 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003526/1.169, allocations: 0.7335 MB / 1.139 GB, free: 6.84 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01952/1.188, allocations: 5.177 MB / 1.144 GB, free: 1.641 MB / 0.7325 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005999/1.189, allocations: 71.95 kB / 1.144 GB, free: 1.57 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.04315/1.232, allocations: 26.95 MB / 1.17 GB, free: 6.215 MB / 0.7637 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.388e-05/1.232, allocations: 15.97 kB / 1.17 GB, free: 6.199 MB / 0.7637 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 0.02617/1.258, allocations: 9.87 MB / 1.18 GB, free: 12.12 MB / 0.7794 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002201/1.26, allocations: 0.6604 MB / 1.18 GB, free: 11.46 MB / 0.7794 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005025/1.261, allocations: 52 kB / 1.18 GB, free: 11.41 MB / 0.7794 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00349/1.264, allocations: 0.5109 MB / 1.181 GB, free: 10.89 MB / 0.7794 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0008028/1.265, allocations: 238.2 kB / 1.181 GB, free: 10.66 MB / 0.7794 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002308/1.265, allocations: 91.95 kB / 1.181 GB, free: 10.57 MB / 0.7794 GB
Notification: Performance of sorting global known variables: time 0.001547/1.267, allocations: 0.9972 MB / 1.182 GB, free: 9.57 MB / 0.7794 GB
Notification: Performance of sort global known variables: time 1.1e-07/1.267, allocations: 0 / 1.182 GB, free: 9.57 MB / 0.7794 GB
Notification: Performance of remove unused functions: time 0.005642/1.273, allocations: 1.855 MB / 1.184 GB, free: 7.715 MB / 0.7794 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 0.02678/1.299, allocations: 10.53 MB / 1.194 GB, free: 12.96 MB / 0.795 GB
Notification: Performance of simCode: created initialization part: time 0.03025/1.33, allocations: 12.01 MB / 1.206 GB, free: 0.8477 MB / 0.795 GB
Notification: Performance of simCode: created event and clocks part: time 1.581e-05/1.33, allocations: 4.375 kB / 1.206 GB, free: 0.8438 MB / 0.795 GB
Notification: Performance of simCode: created simulation system equations: time 0.01096/1.341, allocations: 4.274 MB / 1.21 GB, free: 12.53 MB / 0.8106 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002017/1.343, allocations: 297.3 kB / 1.21 GB, free: 12.25 MB / 0.8106 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 0.09899/1.442, allocations: 42.12 MB / 1.252 GB, free: 0.9219 MB / 0.8419 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003464/1.445, allocations: 2.85 MB / 1.254 GB, free: 14.04 MB / 0.8575 GB
Notification: Performance of simCode: alias equations: time 0.004518/1.45, allocations: 1.657 MB / 1.256 GB, free: 12.38 MB / 0.8575 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.002128/1.452, allocations: 1.222 MB / 1.257 GB, free: 11.15 MB / 0.8575 GB
Notification: Performance of SimCode: time 9.22e-07/1.452, allocations: 3.938 kB / 1.257 GB, free: 11.15 MB / 0.8575 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.5525/2.004, allocations: 107.8 MB / 1.362 GB, free: 316.3 MB / 0.92 GB
Notification: Performance of buildModelFMU: Generate platform static: time 16.96/18.96, allocations: 0.5 kB / 1.362 GB, free: 316.3 MB / 0.92 GB
"
[Timeout remaining time 641]
(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: 23.131650434999756]
Failed to read output from testmodel.py, exit status != 0:
19.12384463499984 19.138071901 18.875176509
Calling exit ...
<OMPython.OMCSessionZMQ object at 0x7f557b19ef20>