Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo", uses=false)
Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo)
Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo)
Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo)
Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo)
Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.004637/0.004637, allocations: 104.7 kB / 15.73 MB, free: 5.965 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001301/0.001301, allocations: 192.5 kB / 16.67 MB, free: 5.883 MB / 14.72 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.4/1.4, allocations: 222.9 MB / 240.4 MB, free: 15.09 MB / 206.1 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 2.79/2.79, allocations: 482.4 MB / 0.7548 GB, free: 6.879 MB / 0.6231 GB
Notification: Performance of FrontEnd - loaded program: time 0.00298/0.00298, allocations: 68.14 kB / 1.083 GB, free: 13.88 MB / 0.8419 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2953/0.2983, allocations: 162.2 MB / 1.242 GB, free: 9.203 MB / 0.9669 GB
Notification: Performance of NFInst.instantiate(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD): time 0.02387/0.3222, allocations: 18.27 MB / 1.259 GB, free: 6.863 MB / 0.9825 GB
Notification: Performance of NFInst.instExpressions: time 0.01166/0.3339, allocations: 6.827 MB / 1.266 GB, free: 20 kB / 0.9825 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001246/0.3351, allocations: 55.92 kB / 1.266 GB, free: 15.96 MB / 0.9981 GB
Notification: Performance of NFTyping.typeComponents: time 0.003906/0.3391, allocations: 1.462 MB / 1.268 GB, free: 14.5 MB / 0.9981 GB
Notification: Performance of NFTyping.typeBindings: time 0.003319/0.3424, allocations: 1.436 MB / 1.269 GB, free: 13.05 MB / 0.9981 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003111/0.3455, allocations: 1.265 MB / 1.27 GB, free: 11.79 MB / 0.9981 GB
Notification: Performance of NFFlatten.flatten: time 0.006544/0.3521, allocations: 5.457 MB / 1.276 GB, free: 6.32 MB / 0.9981 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.00942/0.3615, allocations: 7.12 MB / 1.282 GB, free: 15.09 MB / 1.014 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.003489/0.365, allocations: 2.369 MB / 1.285 GB, free: 12.71 MB / 1.014 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.004853/0.3699, allocations: 2.972 MB / 1.288 GB, free: 9.73 MB / 1.014 GB
Notification: Performance of NFPackage.collectConstants: time 0.001251/0.3712, allocations: 0.5117 MB / 1.288 GB, free: 9.219 MB / 1.014 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002772/0.374, allocations: 1.272 MB / 1.289 GB, free: 7.945 MB / 1.014 GB
Notification: Performance of NFScalarize.scalarize: time 0.002764/0.3767, allocations: 2.238 MB / 1.292 GB, free: 5.703 MB / 1.014 GB
Notification: Performance of NFVerifyModel.verify: time 0.002783/0.3795, allocations: 2.198 MB / 1.294 GB, free: 3.496 MB / 1.014 GB
Notification: Performance of NFConvertDAE.convert: time 0.00851/0.388, allocations: 7.796 MB / 1.301 GB, free: 11.68 MB / 1.029 GB
Notification: Performance of FrontEnd - DAE generated: time 4.167e-06/0.3881, allocations: 7.938 kB / 1.301 GB, free: 11.67 MB / 1.029 GB
Notification: Performance of FrontEnd: time 3.136e-06/0.3881, allocations: 0 / 1.301 GB, free: 11.67 MB / 1.029 GB
Notification: Performance of Transformations before backend: time 0.000142/0.3882, allocations: 3.938 kB / 1.301 GB, free: 11.66 MB / 1.029 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 0.008347/0.3966, allocations: 3.907 MB / 1.305 GB, free: 7.691 MB / 1.029 GB
Notification: Performance of prepare preOptimizeDAE: time 3.908e-05/0.3966, allocations: 8.031 kB / 1.305 GB, free: 7.684 MB / 1.029 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0007734/0.3974, allocations: 0.5542 MB / 1.306 GB, free: 7.121 MB / 1.029 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0137/0.4111, allocations: 2.429 MB / 1.308 GB, free: 4.688 MB / 1.029 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004066/0.4152, allocations: 2.195 MB / 1.31 GB, free: 2.445 MB / 1.029 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002195/0.4154, allocations: 275.2 kB / 1.311 GB, free: 2.176 MB / 1.029 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006461/0.4161, allocations: 348 kB / 1.311 GB, free: 1.836 MB / 1.029 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01455/0.4307, allocations: 7.155 MB / 1.318 GB, free: 10.58 MB / 1.045 GB
Notification: Performance of preOpt findStateOrder (simulation): time 7.57e-05/0.4308, allocations: 11.89 kB / 1.318 GB, free: 10.57 MB / 1.045 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004573/0.4312, allocations: 155.9 kB / 1.318 GB, free: 10.41 MB / 1.045 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004882/0.4317, allocations: 330.1 kB / 1.318 GB, free: 10.09 MB / 1.045 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01644/0.4482, allocations: 7.048 MB / 1.325 GB, free: 3.035 MB / 1.045 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 0.0335/0.4817, allocations: 26.57 MB / 1.351 GB, free: 6.273 MB / 1.076 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008936/0.4907, allocations: 4.996 MB / 1.356 GB, free: 0.9805 MB / 1.076 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.006449/0.4971, allocations: 2.616 MB / 1.359 GB, free: 14.34 MB / 1.092 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0002517/0.4974, allocations: 127 kB / 1.359 GB, free: 14.19 MB / 1.092 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.924e-05/0.4975, allocations: 68.5 kB / 1.359 GB, free: 14.12 MB / 1.092 GB
Notification: Performance of pre-optimization done (n=208): time 5.621e-06/0.4975, allocations: 3.984 kB / 1.359 GB, free: 14.11 MB / 1.092 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 0.1129/0.6104, allocations: 31.19 MB / 1.389 GB, free: 14.86 MB / 1.123 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001553/0.6105, allocations: 239.5 kB / 1.389 GB, free: 14.58 MB / 1.123 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002404/0.6129, allocations: 1.477 MB / 1.391 GB, free: 13.09 MB / 1.123 GB
Notification: Performance of collectPreVariables (initialization): time 0.0003771/0.6133, allocations: 69.7 kB / 1.391 GB, free: 13.02 MB / 1.123 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001206/0.6146, allocations: 1.546 MB / 1.392 GB, free: 11.46 MB / 1.123 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001129/0.6157, allocations: 0.9644 MB / 1.393 GB, free: 10.48 MB / 1.123 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001425/0.6171, allocations: 0.636 MB / 1.394 GB, free: 9.84 MB / 1.123 GB
Notification: Performance of setup shared object (initialization): time 0.0001308/0.6173, allocations: 305.1 kB / 1.394 GB, free: 9.539 MB / 1.123 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006632/0.6239, allocations: 2.69 MB / 1.397 GB, free: 6.84 MB / 1.123 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.00737/0.6313, allocations: 3.567 MB / 1.4 GB, free: 2.891 MB / 1.123 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01454/0.6458, allocations: 6.406 MB / 1.407 GB, free: 12.08 MB / 1.139 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.549e-05/0.6459, allocations: 12 kB / 1.407 GB, free: 12.07 MB / 1.139 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 0.03152/0.6774, allocations: 11.02 MB / 1.417 GB, free: 0.9414 MB / 1.139 GB
Notification: Performance of prepare postOptimizeDAE: time 4.178e-05/0.6775, allocations: 18.44 kB / 1.417 GB, free: 0.9258 MB / 1.139 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.746e-05/0.6775, allocations: 31.98 kB / 1.418 GB, free: 0.8945 MB / 1.139 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02189/0.6994, allocations: 5.54 MB / 1.423 GB, free: 11.34 MB / 1.154 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004683/0.7042, allocations: 0.9945 MB / 1.424 GB, free: 10.35 MB / 1.154 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04854/0.7527, allocations: 28.21 MB / 1.451 GB, free: 13.68 MB / 1.186 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004842/0.7576, allocations: 0.5771 MB / 1.452 GB, free: 13.1 MB / 1.186 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005864/0.7582, allocations: 152 kB / 1.452 GB, free: 12.95 MB / 1.186 GB
Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.009126/0.7673, allocations: 3.98 MB / 1.456 GB, free: 8.965 MB / 1.186 GB
Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.007673/0.775, allocations: 3.528 MB / 1.459 GB, free: 5.059 MB / 1.186 GB
Error: Initialization problem is structural singular. Please, check the initial conditions.
Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0976/0.8727, allocations: 24.62 MB / 1.484 GB, free: 11.93 MB / 1.217 GB
Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.188e-05/0.8727, allocations: 4 kB / 1.484 GB, free: 11.92 MB / 1.217 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 0.02882/0.9015, allocations: 10.55 MB / 1.494 GB, free: 1.234 MB / 1.217 GB
Notification: Performance of prepare postOptimizeDAE: time 3.426e-05/0.9016, allocations: 19.94 kB / 1.494 GB, free: 1.215 MB / 1.217 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.139e-05/0.9016, allocations: 28 kB / 1.494 GB, free: 1.188 MB / 1.217 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01652/0.9182, allocations: 4.321 MB / 1.498 GB, free: 12.85 MB / 1.232 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004962/0.9232, allocations: 1.041 MB / 1.499 GB, free: 11.81 MB / 1.232 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04061/0.9638, allocations: 27.15 MB / 1.526 GB, free: 15.93 MB / 1.264 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004768/0.9686, allocations: 0.5499 MB / 1.526 GB, free: 15.38 MB / 1.264 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0005843/0.9692, allocations: 155.9 kB / 1.526 GB, free: 15.23 MB / 1.264 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 0.001047/0.9702, allocations: 410.7 kB / 1.527 GB, free: 14.82 MB / 1.264 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0006698/0.9709, allocations: 214.6 kB / 1.527 GB, free: 14.61 MB / 1.264 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 0.02954/1, allocations: 10.17 MB / 1.537 GB, free: 4.363 MB / 1.264 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.423e-05/1.001, allocations: 24 kB / 1.537 GB, free: 4.34 MB / 1.264 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 2.921e-05/1.001, allocations: 16 kB / 1.537 GB, free: 4.324 MB / 1.264 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.381e-05/1.001, allocations: 15.94 kB / 1.537 GB, free: 4.309 MB / 1.264 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 0.5695/1.57, allocations: 16.28 MB / 1.553 GB, free: 277.6 MB / 1.264 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.096e-05/1.57, allocations: 8.5 kB / 1.553 GB, free: 277.6 MB / 1.264 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.003544/1.574, allocations: 0.7285 MB / 1.554 GB, free: 277.6 MB / 1.264 GB
Notification: Performance of postOpt tearingSystem (simulation): time 0.01888/1.593, allocations: 5.179 MB / 1.559 GB, free: 277.4 MB / 1.264 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0004305/1.593, allocations: 68.84 kB / 1.559 GB, free: 277.4 MB / 1.264 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03429/1.627, allocations: 27.26 MB / 1.585 GB, free: 263.3 MB / 1.264 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.833e-06/1.627, allocations: 15.66 kB / 1.585 GB, free: 263.3 MB / 1.264 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 0.02319/1.651, allocations: 10.1 MB / 1.595 GB, free: 259.1 MB / 1.264 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001151/1.652, allocations: 0.7294 MB / 1.596 GB, free: 258.7 MB / 1.264 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004825/1.652, allocations: 59.52 kB / 1.596 GB, free: 258.6 MB / 1.264 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003505/1.656, allocations: 0.5025 MB / 1.596 GB, free: 258.3 MB / 1.264 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006728/1.656, allocations: 230 kB / 1.597 GB, free: 258.1 MB / 1.264 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002318/1.657, allocations: 91.3 kB / 1.597 GB, free: 258 MB / 1.264 GB
Notification: Performance of sorting global known variables: time 0.001224/1.658, allocations: 1.005 MB / 1.598 GB, free: 257 MB / 1.264 GB
Notification: Performance of sort global known variables: time 1.7e-07/1.658, allocations: 0 / 1.598 GB, free: 257 MB / 1.264 GB
Notification: Performance of remove unused functions: time 0.004892/1.663, allocations: 1.852 MB / 1.6 GB, free: 255.1 MB / 1.264 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 0.02323/1.686, allocations: 10.78 MB / 1.61 GB, free: 244.2 MB / 1.264 GB
Notification: Performance of simCode: created initialization part: time 0.02521/1.711, allocations: 12.47 MB / 1.622 GB, free: 231.6 MB / 1.264 GB
Notification: Performance of simCode: created event and clocks part: time 8.095e-06/1.711, allocations: 0 / 1.622 GB, free: 231.6 MB / 1.264 GB
Notification: Performance of simCode: created simulation system equations: time 0.009195/1.721, allocations: 4.437 MB / 1.627 GB, free: 227.1 MB / 1.264 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001863/1.722, allocations: 285.7 kB / 1.627 GB, free: 226.9 MB / 1.264 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 0.08291/1.805, allocations: 42.51 MB / 1.668 GB, free: 183.1 MB / 1.264 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002133/1.808, allocations: 2.857 MB / 1.671 GB, free: 180.2 MB / 1.264 GB
Notification: Performance of simCode: alias equations: time 0.003796/1.811, allocations: 1.662 MB / 1.673 GB, free: 178.6 MB / 1.264 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001344/1.813, allocations: 1.226 MB / 1.674 GB, free: 177.4 MB / 1.264 GB
Notification: Performance of SimCode: time 5.72e-07/1.813, allocations: 0 / 1.674 GB, free: 177.4 MB / 1.264 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.128/1.941, allocations: 103.4 MB / 1.775 GB, free: 74.39 MB / 1.264 GB
Notification: Performance of buildModelFMU: Generate platform static: time 16/17.94, allocations: 3.453 kB / 1.775 GB, free: 74.39 MB / 1.264 GB
(rm -f Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; mkfifo Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe ; head -c 1048576 < Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe >> ../files/Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.sim & python3 -m fmpy simulate  --output-file Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD_res.csv --start-time 0 --stop-time 1 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_UnbalancedStepDown_YD.fmu > Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD.pipe 2>&1)