Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_maint.8.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD.conf.json
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false)
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo", uses=false)
Using package ModelicaServices with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo)
Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo)
Using package Complex with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo)
Using package Buildings with version 8.0.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo)
Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD")
translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_maint.8.0.x_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.DD")
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.0.1-maint.8.0.x/package.mo): time 1.764/1.764, allocations: 288.4 MB / 304.3 MB, free: 8.145 MB / 234.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 3.2.3+maint.om/package.mo): time 0.00095/0.00095, allocations: 183 kB / 372.9 MB, free: 10.16 MB / 298.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.644/1.644, allocations: 205.4 MB / 0.6317 GB, free: 9.887 MB / 458.7 MB
Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 3.2.3+maint.om/package.mo): time 0.0008036/0.0008034, allocations: 102.1 kB / 0.745 GB, free: 5.809 MB / 0.5573 GB
Notification: Performance of FrontEnd - loaded program: time 0.0003946/0.0003947, allocations: 15.38 kB / 0.8681 GB, free: 141.9 MB / 0.6198 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1966/0.197, allocations: 115.3 MB / 0.9808 GB, free: 27.39 MB / 0.6198 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.6488/0.8459, allocations: 199.2 MB / 1.175 GB, free: 15.36 MB / 0.7136 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004059/0.8464, allocations: 120.2 kB / 1.175 GB, free: 15.29 MB / 0.7136 GB
Notification: Performance of FrontEnd - DAE generated: time 0.3017/1.148, allocations: 124.5 MB / 1.297 GB, free: 13.74 MB / 0.823 GB
Notification: Performance of FrontEnd: time 2.174e-06/1.148, allocations: 0 / 1.297 GB, free: 13.74 MB / 0.823 GB
Notification: Performance of Transformations before backend: time 0.0001331/1.148, allocations: 67.94 kB / 1.297 GB, free: 13.68 MB / 0.823 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 874
 * Number of variables: 874
Notification: Performance of Generate backend data structure: time 0.007986/1.156, allocations: 2.821 MB / 1.3 GB, free: 10.8 MB / 0.823 GB
Notification: Performance of prepare preOptimizeDAE: time 4.39e-05/1.156, allocations: 8.031 kB / 1.3 GB, free: 10.79 MB / 0.823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01274/1.169, allocations: 2.096 MB / 1.302 GB, free: 8.688 MB / 0.823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004704/1.174, allocations: 2.045 MB / 1.304 GB, free: 6.594 MB / 0.823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002214/1.174, allocations: 235.3 kB / 1.304 GB, free: 6.363 MB / 0.823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0009863/1.175, allocations: 304 kB / 1.304 GB, free: 6.066 MB / 0.823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01417/1.189, allocations: 5.892 MB / 1.31 GB, free: 64 kB / 0.823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 9.312e-05/1.189, allocations: 7.844 kB / 1.31 GB, free: 56 kB / 0.823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004905/1.19, allocations: 132 kB / 1.31 GB, free: 15.92 MB / 0.8386 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005273/1.19, allocations: 285.3 kB / 1.311 GB, free: 15.64 MB / 0.8386 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01486/1.205, allocations: 6.028 MB / 1.316 GB, free: 9.598 MB / 0.8386 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03802/1.243, allocations: 24.85 MB / 1.341 GB, free: 14.7 MB / 0.8698 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009026/1.252, allocations: 5.473 MB / 1.346 GB, free: 8.867 MB / 0.8698 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.00627/1.259, allocations: 2.802 MB / 1.349 GB, free: 6.055 MB / 0.8698 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003641/1.259, allocations: 135 kB / 1.349 GB, free: 5.902 MB / 0.8698 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.62e-05/1.259, allocations: 68.44 kB / 1.349 GB, free: 5.828 MB / 0.8698 GB
Notification: Performance of pre-optimization done (n=230): time 5.33e-06/1.259, allocations: 0 / 1.349 GB, free: 5.828 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=311): time 0.1395/1.399, allocations: 36.58 MB / 1.385 GB, free: 1.137 MB / 0.9011 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.000115/1.399, allocations: 239.9 kB / 1.385 GB, free: 0.8516 MB / 0.9011 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002015/1.401, allocations: 1.291 MB / 1.386 GB, free: 15.55 MB / 0.9167 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005275/1.401, allocations: 73.7 kB / 1.386 GB, free: 15.47 MB / 0.9167 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0008194/1.402, allocations: 1.262 MB / 1.387 GB, free: 14.19 MB / 0.9167 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001245/1.403, allocations: 1.043 MB / 1.388 GB, free: 13.13 MB / 0.9167 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003979/1.404, allocations: 68 kB / 1.389 GB, free: 13.06 MB / 0.9167 GB
Notification: Performance of setup shared object (initialization): time 0.0002695/1.404, allocations: 444.7 kB / 1.389 GB, free: 12.62 MB / 0.9167 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.006149/1.41, allocations: 2.735 MB / 1.392 GB, free: 9.883 MB / 0.9167 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006841/1.417, allocations: 3.43 MB / 1.395 GB, free: 6.18 MB / 0.9167 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01337/1.431, allocations: 6.38 MB / 1.401 GB, free: 15.5 MB / 0.9323 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.695e-05/1.431, allocations: 4 kB / 1.401 GB, free: 15.5 MB / 0.9323 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02644/1.457, allocations: 9.857 MB / 1.411 GB, free: 5.586 MB / 0.9323 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0005553/1.458, allocations: 0.6339 MB / 1.411 GB, free: 4.688 MB / 0.9323 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.628e-05/1.458, allocations: 20.19 kB / 1.412 GB, free: 4.668 MB / 0.9323 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03126/1.489, allocations: 7.766 MB / 1.419 GB, free: 12.89 MB / 0.948 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004116/1.493, allocations: 0.8307 MB / 1.42 GB, free: 12.05 MB / 0.948 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.4563/1.95, allocations: 17.33 MB / 1.437 GB, free: 270.1 MB / 0.948 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004565/1.954, allocations: 0.5275 MB / 1.437 GB, free: 270.1 MB / 0.948 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000862/1.955, allocations: 185.1 kB / 1.438 GB, free: 270.1 MB / 0.948 GB
Notification: Performance of prepare postOptimizeDAE: time 1.512e-05/1.955, allocations: 6.219 kB / 1.438 GB, free: 270.1 MB / 0.948 GB
Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information.
Notification: Performance of <failed> postOpt replaceHomotopyWithSimplified (initialization): time 0.007368/1.962, allocations: 3.2 MB / 1.441 GB, free: 270 MB / 0.948 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated