Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.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 0.001513/0.001513, allocations: 107.2 kB / 16.45 MB, free: 6.5 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 0.001556/0.001556, allocations: 216 kB / 19.43 MB, free: 3.656 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 1.372/1.372, allocations: 230.6 MB / 252.8 MB, free: 8.992 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 0.002438/0.002438, allocations: 294 kB / 309.1 MB, free: 3.969 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 1.192/1.192, allocations: 180.9 MB / 0.5333 GB, free: 13.86 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.BalancedStepDown.YD,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,fileNamePrefix="BuildingSystems_BuildingSystems_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_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 0.002684/0.002684, allocations: 101.7 kB / 0.7343 GB, free: 28.1 MB / 0.5294 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1518/0.1545, allocations: 95.33 MB / 0.8274 GB, free: 9.793 MB / 0.5762 GB
Notification: Performance of NFInst.instantiate(BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD): time 0.02233/0.1769, allocations: 18.55 MB / 0.8456 GB, free: 7.176 MB / 0.5919 GB
Notification: Performance of NFInst.instExpressions: time 0.01117/0.188, allocations: 6.883 MB / 0.8523 GB, free: 280 kB / 0.5919 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001402/0.1894, allocations: 71.69 kB / 0.8523 GB, free: 208 kB / 0.5919 GB
Notification: Performance of NFTyping.typeComponents: time 0.003579/0.193, allocations: 1.5 MB / 0.8538 GB, free: 14.7 MB / 0.6075 GB
Notification: Performance of NFTyping.typeBindings: time 0.003535/0.1965, allocations: 1.44 MB / 0.8552 GB, free: 13.25 MB / 0.6075 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003373/0.1999, allocations: 1.27 MB / 0.8565 GB, free: 11.98 MB / 0.6075 GB
Notification: Performance of NFFlatten.flatten: time 0.005989/0.2059, allocations: 5.433 MB / 0.8618 GB, free: 6.539 MB / 0.6075 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.006906/0.2128, allocations: 5.155 MB / 0.8668 GB, free: 1.273 MB / 0.6075 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003456/0.2163, allocations: 2.396 MB / 0.8691 GB, free: 14.87 MB / 0.6231 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.004871/0.2211, allocations: 3.151 MB / 0.8722 GB, free: 11.71 MB / 0.6231 GB
Notification: Performance of NFPackage.collectConstants: time 0.001296/0.2224, allocations: 0.5117 MB / 0.8727 GB, free: 11.2 MB / 0.6231 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002558/0.225, allocations: 1.28 MB / 0.874 GB, free: 9.918 MB / 0.6231 GB
Notification: Performance of NFScalarize.scalarize: time 0.002357/0.2274, allocations: 2.296 MB / 0.8762 GB, free: 7.617 MB / 0.6231 GB
Notification: Performance of NFVerifyModel.verify: time 0.002413/0.2298, allocations: 2.171 MB / 0.8783 GB, free: 5.438 MB / 0.6231 GB
Notification: Performance of NFConvertDAE.convert: time 0.007412/0.2372, allocations: 7.745 MB / 0.8859 GB, free: 13.67 MB / 0.6387 GB
Notification: Performance of FrontEnd - DAE generated: time 4.027e-06/0.2372, allocations: 0 / 0.8859 GB, free: 13.67 MB / 0.6387 GB
Notification: Performance of FrontEnd: time 1.212e-06/0.2372, allocations: 4 kB / 0.8859 GB, free: 13.66 MB / 0.6387 GB
Notification: Performance of Transformations before backend: time 0.0001128/0.2373, allocations: 0 / 0.8859 GB, free: 13.66 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: 983
 * Number of variables: 983
Notification: Performance of Generate backend data structure: time 0.007759/0.2451, allocations: 3.868 MB / 0.8897 GB, free: 9.73 MB / 0.6387 GB
Notification: Performance of prepare preOptimizeDAE: time 3.773e-05/0.2451, allocations: 12.03 kB / 0.8897 GB, free: 9.719 MB / 0.6387 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0008121/0.2459, allocations: 0.5423 MB / 0.8902 GB, free: 9.168 MB / 0.6387 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01293/0.2588, allocations: 2.425 MB / 0.8926 GB, free: 6.738 MB / 0.6387 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004909/0.2637, allocations: 2.183 MB / 0.8947 GB, free: 4.512 MB / 0.6387 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002364/0.264, allocations: 267.2 kB / 0.895 GB, free: 4.25 MB / 0.6387 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009898/0.265, allocations: 351.9 kB / 0.8953 GB, free: 3.906 MB / 0.6387 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01431/0.2793, allocations: 7.122 MB / 0.9023 GB, free: 12.68 MB / 0.6544 GB
Notification: Performance of preOpt findStateOrder (simulation): time 6.669e-05/0.2793, allocations: 11.92 kB / 0.9023 GB, free: 12.67 MB / 0.6544 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004769/0.2798, allocations: 148 kB / 0.9024 GB, free: 12.52 MB / 0.6544 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004667/0.2803, allocations: 326 kB / 0.9027 GB, free: 12.2 MB / 0.6544 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0157/0.296, allocations: 7.032 MB / 0.9096 GB, free: 5.156 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 0.03392/0.3299, allocations: 26.45 MB / 0.9354 GB, free: 8.535 MB / 0.6856 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008747/0.3387, allocations: 4.885 MB / 0.9402 GB, free: 3.34 MB / 0.6856 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006234/0.3449, allocations: 2.537 MB / 0.9427 GB, free: 0.7891 MB / 0.6856 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002953/0.3452, allocations: 131 kB / 0.9428 GB, free: 0.6445 MB / 0.6856 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.031e-05/0.3452, allocations: 60.56 kB / 0.9429 GB, free: 0.5742 MB / 0.6856 GB
Notification: Performance of pre-optimization done (n=208): time 4.338e-06/0.3453, allocations: 3.938 kB / 0.9429 GB, free: 0.5703 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 0.1078/0.453, allocations: 31.05 MB / 0.9732 GB, free: 1.453 MB / 0.7169 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001556/0.4532, allocations: 247.5 kB / 0.9734 GB, free: 1.164 MB / 0.7169 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002207/0.4554, allocations: 1.427 MB / 0.9748 GB, free: 15.73 MB / 0.7325 GB
Notification: Performance of collectPreVariables (initialization): time 0.0004864/0.4559, allocations: 77.64 kB / 0.9749 GB, free: 15.64 MB / 0.7325 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001082/0.457, allocations: 1.534 MB / 0.9764 GB, free: 14.09 MB / 0.7325 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001157/0.4581, allocations: 0.9645 MB / 0.9773 GB, free: 13.12 MB / 0.7325 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001231/0.4593, allocations: 0.6398 MB / 0.9779 GB, free: 12.47 MB / 0.7325 GB
Notification: Performance of setup shared object (initialization): time 0.0001155/0.4595, allocations: 301.1 kB / 0.9782 GB, free: 12.18 MB / 0.7325 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006252/0.4657, allocations: 2.694 MB / 0.9809 GB, free: 9.473 MB / 0.7325 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007144/0.4729, allocations: 3.571 MB / 0.9843 GB, free: 5.523 MB / 0.7325 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.3533/0.8261, allocations: 6.398 MB / 0.9906 GB, free: 145.8 MB / 0.7325 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.481e-05/0.8261, allocations: 10.81 kB / 0.9906 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 0.02818/0.8543, allocations: 10.95 MB / 1.001 GB, free: 143.4 MB / 0.7325 GB
Notification: Performance of prepare postOptimizeDAE: time 4.871e-05/0.8544, allocations: 20.12 kB / 1.001 GB, free: 143.4 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.47e-05/0.8544, allocations: 30.28 kB / 1.001 GB, free: 143.4 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01924/0.8737, allocations: 5.538 MB / 1.007 GB, free: 142.7 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00398/0.8777, allocations: 0.9921 MB / 1.008 GB, free: 142.7 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03419/0.9118, allocations: 28.2 MB / 1.035 GB, free: 124 MB / 0.7325 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004167/0.916, allocations: 0.5799 MB / 1.036 GB, free: 123.4 MB / 0.7325 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000415/0.9164, allocations: 144 kB / 1.036 GB, free: 123.3 MB / 0.7325 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.006451/0.9229, allocations: 3.988 MB / 1.04 GB, free: 119.3 MB / 0.7325 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.005086/0.928, allocations: 3.537 MB / 1.043 GB, free: 115.4 MB / 0.7325 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.07737/1.005, allocations: 24.64 MB / 1.067 GB, free: 90.24 MB / 0.7325 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.216e-05/1.005, allocations: 8 kB / 1.067 GB, free: 90.23 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 0.02192/1.027, allocations: 10.48 MB / 1.078 GB, free: 79.65 MB / 0.7325 GB
Notification: Performance of prepare postOptimizeDAE: time 2.638e-05/1.027, allocations: 16 kB / 1.078 GB, free: 79.64 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.196e-05/1.027, allocations: 28 kB / 1.078 GB, free: 79.61 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01316/1.04, allocations: 4.321 MB / 1.082 GB, free: 75.27 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004151/1.045, allocations: 1.046 MB / 1.083 GB, free: 74.22 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02651/1.071, allocations: 27.14 MB / 1.109 GB, free: 46.39 MB / 0.7325 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004063/1.075, allocations: 0.5538 MB / 1.11 GB, free: 45.84 MB / 0.7325 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003763/1.076, allocations: 153.6 kB / 1.11 GB, free: 45.7 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 0.0007512/1.076, allocations: 403.5 kB / 1.11 GB, free: 45.31 MB / 0.7325 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005151/1.077, allocations: 202.7 kB / 1.111 GB, free: 45.11 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 0.02289/1.1, allocations: 10.08 MB / 1.121 GB, free: 34.96 MB / 0.7325 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.451e-05/1.1, allocations: 28 kB / 1.121 GB, free: 34.93 MB / 0.7325 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.058e-05/1.1, allocations: 15.84 kB / 1.121 GB, free: 34.92 MB / 0.7325 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.548e-05/1.1, allocations: 15.95 kB / 1.121 GB, free: 34.9 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 0.02964/1.13, allocations: 16.17 MB / 1.136 GB, free: 18.55 MB / 0.7325 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.399e-05/1.13, allocations: 12.06 kB / 1.136 GB, free: 18.54 MB / 0.7325 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003074/1.133, allocations: 0.7371 MB / 1.137 GB, free: 17.8 MB / 0.7325 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01658/1.149, allocations: 5.173 MB / 1.142 GB, free: 12.61 MB / 0.7325 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0005403/1.15, allocations: 71.89 kB / 1.142 GB, free: 12.54 MB / 0.7325 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03811/1.188, allocations: 27.28 MB / 1.169 GB, free: 0.7812 MB / 0.7481 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.037e-05/1.188, allocations: 16.03 kB / 1.169 GB, free: 0.7656 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 0.02673/1.215, allocations: 10.02 MB / 1.179 GB, free: 6.508 MB / 0.7637 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.00178/1.216, allocations: 0.7242 MB / 1.179 GB, free: 5.766 MB / 0.7637 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005223/1.217, allocations: 56 kB / 1.179 GB, free: 5.711 MB / 0.7637 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003707/1.221, allocations: 0.507 MB / 1.18 GB, free: 5.203 MB / 0.7637 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0007661/1.221, allocations: 230.3 kB / 1.18 GB, free: 4.98 MB / 0.7637 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002508/1.222, allocations: 95.95 kB / 1.18 GB, free: 4.887 MB / 0.7637 GB
Notification: Performance of sorting global known variables: time 0.001521/1.223, allocations: 0.9723 MB / 1.181 GB, free: 3.91 MB / 0.7637 GB
Notification: Performance of sort global known variables: time 1e-07/1.223, allocations: 0 / 1.181 GB, free: 3.91 MB / 0.7637 GB
Notification: Performance of remove unused functions: time 0.006356/1.229, allocations: 1.846 MB / 1.183 GB, free: 2.066 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 0.02683/1.256, allocations: 10.69 MB / 1.193 GB, free: 7.125 MB / 0.7794 GB
Notification: Performance of simCode: created initialization part: time 0.02966/1.286, allocations: 12.01 MB / 1.205 GB, free: 11 MB / 0.795 GB
Notification: Performance of simCode: created event and clocks part: time 1.977e-05/1.286, allocations: 0 / 1.205 GB, free: 11 MB / 0.795 GB
Notification: Performance of simCode: created simulation system equations: time 0.01087/1.297, allocations: 4.27 MB / 1.209 GB, free: 6.695 MB / 0.795 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002033/1.299, allocations: 274.5 kB / 1.21 GB, free: 6.43 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.
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.09847/1.397, allocations: 41.56 MB / 1.25 GB, free: 11.59 MB / 0.8419 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003716/1.401, allocations: 2.836 MB / 1.253 GB, free: 8.723 MB / 0.8419 GB
Notification: Performance of simCode: alias equations: time 0.004758/1.406, allocations: 1.653 MB / 1.255 GB, free: 7.066 MB / 0.8419 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00239/1.408, allocations: 1.202 MB / 1.256 GB, free: 5.863 MB / 0.8419 GB
Notification: Performance of SimCode: time 9.22e-07/1.408, allocations: 0 / 1.256 GB, free: 5.863 MB / 0.8419 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.5035/1.912, allocations: 103.3 MB / 1.357 GB, free: 324.5 MB / 0.92 GB
Notification: Performance of buildModelFMU: Generate platform static: time 15.79/17.7, allocations: 8.781 kB / 1.357 GB, free: 324.5 MB / 0.92 GB
"
[Timeout remaining time 642]
(rm -f BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; mkfifo BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe ; head -c 1048576 < BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe >> ../files/BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.sim & python3 -m fmpy simulate  --output-file BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.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_BalancedStepDown_YD.fmu > BuildingSystems_BuildingSystems.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD.pipe 2>&1) [Timeout 52.5]
[Calling os._exit(0), Time elapsed: 21.727021580096334]
Failed to read output from testmodel.py, exit status != 0:
17.831251435913146 17.840396072 17.600954645
Calling exit ...
<OMPython.OMCSessionZMQ object at 0x7fb7b398d7e0>