Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD")
Notification: Performance of loadModel(Buildings): time 4.35/4.35, allocations: 460.5 MB / 472.6 MB, free: 5.316 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.733e-05/4.751e-05, allocations: 4 kB / 0.5681 GB, free: 10.15 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1964/0.1964, allocations: 106.2 MB / 0.6719 GB, free: 15.74 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.8048/1.001, allocations: 193.5 MB / 0.8608 GB, free: 3.988 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003568/1.002, allocations: 111.3 kB / 0.861 GB, free: 3.922 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5074/1.509, allocations: 134.9 MB / 0.9927 GB, free: 6.938 MB / 0.7761 GB
Notification: Performance of FrontEnd: time 1.939e-06/1.509, allocations: 0 / 0.9927 GB, free: 6.938 MB / 0.7761 GB
Notification: Performance of Transformations before backend: time 0.0001963/1.509, allocations: 72 kB / 0.9928 GB, free: 6.867 MB / 0.7761 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 0.01066/1.52, allocations: 2.953 MB / 0.9957 GB, free: 3.859 MB / 0.7761 GB
Notification: Performance of prepare preOptimizeDAE: time 5.049e-05/1.52, allocations: 12.03 kB / 0.9957 GB, free: 3.848 MB / 0.7761 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01609/1.536, allocations: 2.129 MB / 0.9978 GB, free: 1.711 MB / 0.7761 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006678/1.543, allocations: 2.182 MB / 0.9999 GB, free: 15.48 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003858/1.543, allocations: 271.1 kB / 1 GB, free: 15.22 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001862/1.545, allocations: 348 kB / 1 GB, free: 14.88 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01892/1.564, allocations: 5.932 MB / 1.006 GB, free: 8.852 MB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001163/1.564, allocations: 7.984 kB / 1.006 GB, free: 8.844 MB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000979/1.565, allocations: 151.9 kB / 1.006 GB, free: 8.695 MB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007013/1.566, allocations: 302 kB / 1.007 GB, free: 8.398 MB / 0.7917 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01635/1.582, allocations: 5.345 MB / 1.012 GB, free: 3.047 MB / 0.7917 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04989/1.632, allocations: 26.73 MB / 1.038 GB, free: 6.137 MB / 0.823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008729/1.641, allocations: 4.477 MB / 1.042 GB, free: 1.348 MB / 0.823 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004842/1.646, allocations: 2.048 MB / 1.044 GB, free: 15.28 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003688/1.646, allocations: 134.9 kB / 1.045 GB, free: 15.13 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.459e-05/1.646, allocations: 60.5 kB / 1.045 GB, free: 15.07 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 6.544e-06/1.646, allocations: 4 kB / 1.045 GB, free: 15.06 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1244/1.771, allocations: 25.92 MB / 1.07 GB, free: 5.09 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001708/1.771, allocations: 235.6 kB / 1.07 GB, free: 4.809 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002782/1.774, allocations: 1.308 MB / 1.071 GB, free: 3.492 MB / 0.8542 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006049/1.775, allocations: 73.7 kB / 1.072 GB, free: 3.414 MB / 0.8542 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001458/1.776, allocations: 1.497 MB / 1.073 GB, free: 1.895 MB / 0.8542 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001501/1.778, allocations: 0.9434 MB / 1.074 GB, free: 0.9375 MB / 0.8542 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.000431/1.778, allocations: 72 kB / 1.074 GB, free: 0.8672 MB / 0.8542 GB
Notification: Performance of setup shared object (initialization): time 0.0003797/1.778, allocations: 444.8 kB / 1.074 GB, free: 436 kB / 0.8542 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005123/1.784, allocations: 2.115 MB / 1.076 GB, free: 14.31 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006723/1.79, allocations: 2.995 MB / 1.079 GB, free: 10.93 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006166/1.796, allocations: 2.588 MB / 1.082 GB, free: 8.316 MB / 0.8698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.348e-05/1.797, allocations: 8 kB / 1.082 GB, free: 8.309 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.0238/1.82, allocations: 8.057 MB / 1.09 GB, free: 196 kB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.532/2.352, allocations: 10.62 MB / 1.1 GB, free: 224.1 MB / 0.8698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.135e-05/2.353, allocations: 29.38 kB / 1.1 GB, free: 224.1 MB / 0.8698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03489/2.387, allocations: 6.528 MB / 1.107 GB, free: 224.1 MB / 0.8698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005605/2.393, allocations: 0.8772 MB / 1.107 GB, free: 224.1 MB / 0.8698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03164/2.425, allocations: 14.66 MB / 1.122 GB, free: 222.3 MB / 0.8698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00489/2.43, allocations: 0.53 MB / 1.122 GB, free: 222.3 MB / 0.8698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008094/2.431, allocations: 195.2 kB / 1.122 GB, free: 222.3 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.406e-05/2.431, allocations: 3.938 kB / 1.122 GB, free: 222.3 MB / 0.8698 GB
Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singulare and cannot handled because number of unassigned equations is larger than number of states. Use -d=bltdump to get more information.
Notification: Performance of <failed> postOpt replaceHomotopyWithSimplified (initialization): time 0.006152/2.437, allocations: 2.603 MB / 1.125 GB, free: 222.2 MB / 0.8698 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated