Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.DD")
Notification: Performance of loadModel(Buildings): time 3.741/3.741, allocations: 403.3 MB / 415.4 MB, free: 12.97 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.558e-05/4.562e-05, allocations: 4 kB / 0.4991 GB, free: 13.41 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.492/0.4921, allocations: 92.68 MB / 0.5896 GB, free: 14.52 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2559/0.748, allocations: 180.8 MB / 0.7661 GB, free: 9.469 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003634/0.7484, allocations: 107.9 kB / 0.7662 GB, free: 9.363 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.8166/1.565, allocations: 122.3 MB / 0.8856 GB, free: 80.36 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 2.431e-06/1.565, allocations: 0 / 0.8856 GB, free: 80.36 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001577/1.565, allocations: 64 kB / 0.8857 GB, free: 80.3 MB / 0.6511 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 863
 * Number of variables: 863
Notification: Performance of Generate backend data structure: time 0.008905/1.574, allocations: 2.662 MB / 0.8883 GB, free: 77.58 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.311e-05/1.574, allocations: 8.031 kB / 0.8883 GB, free: 77.57 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01564/1.59, allocations: 2.067 MB / 0.8903 GB, free: 75.5 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005169/1.595, allocations: 2.001 MB / 0.8923 GB, free: 73.45 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002451/1.595, allocations: 226.1 kB / 0.8925 GB, free: 73.23 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001481/1.597, allocations: 304 kB / 0.8928 GB, free: 72.93 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01373/1.611, allocations: 5.286 MB / 0.898 GB, free: 67.54 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 8.792e-05/1.611, allocations: 0 / 0.898 GB, free: 67.54 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0007139/1.612, allocations: 127.9 kB / 0.8981 GB, free: 67.41 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005817/1.612, allocations: 289.2 kB / 0.8984 GB, free: 67.12 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01175/1.624, allocations: 4.954 MB / 0.9032 GB, free: 62.16 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.03488/1.659, allocations: 18.4 MB / 0.9212 GB, free: 43.24 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.007333/1.666, allocations: 4.929 MB / 0.926 GB, free: 37.96 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004437/1.671, allocations: 2.31 MB / 0.9282 GB, free: 35.64 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003305/1.671, allocations: 135 kB / 0.9284 GB, free: 35.49 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.319e-05/1.671, allocations: 72.48 kB / 0.9284 GB, free: 35.41 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=230): time 6.372e-06/1.671, allocations: 0 / 0.9284 GB, free: 35.41 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=311): time 0.1462/1.817, allocations: 30.94 MB / 0.9586 GB, free: 4.465 MB / 0.6511 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 7.452e-05/1.817, allocations: 239.9 kB / 0.9589 GB, free: 4.18 MB / 0.6511 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001963/1.819, allocations: 1.111 MB / 0.96 GB, free: 3.051 MB / 0.6511 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006355/1.82, allocations: 81.7 kB / 0.96 GB, free: 2.965 MB / 0.6511 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0006711/1.821, allocations: 1.227 MB / 0.9612 GB, free: 1.719 MB / 0.6511 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001206/1.822, allocations: 1.043 MB / 0.9622 GB, free: 0.6602 MB / 0.6511 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004305/1.822, allocations: 64 kB / 0.9623 GB, free: 0.5977 MB / 0.6511 GB
Notification: Performance of setup shared object (initialization): time 0.0002122/1.823, allocations: 444.7 kB / 0.9627 GB, free: 160 kB / 0.6511 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004995/1.828, allocations: 2.232 MB / 0.9649 GB, free: 13.92 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005916/1.834, allocations: 2.9 MB / 0.9677 GB, free: 10.75 MB / 0.6667 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006173/1.84, allocations: 2.662 MB / 0.9703 GB, free: 8.07 MB / 0.6667 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.258e-05/1.84, allocations: 12 kB / 0.9704 GB, free: 8.059 MB / 0.6667 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02505/1.865, allocations: 8.358 MB / 0.9785 GB, free: 15.65 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003818/1.869, allocations: 7.322 MB / 0.9857 GB, free: 7.746 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.509e-05/1.869, allocations: 27.94 kB / 0.9857 GB, free: 7.719 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03608/1.905, allocations: 6.723 MB / 0.9923 GB, free: 0.9805 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005208/1.91, allocations: 0.8268 MB / 0.9931 GB, free: 156 kB / 0.6823 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03668/1.947, allocations: 16.65 MB / 1.009 GB, free: 15.33 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005162/1.952, allocations: 0.5068 MB / 1.01 GB, free: 14.82 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009321/1.953, allocations: 183.9 kB / 1.01 GB, free: 14.64 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.513e-05/1.953, allocations: 4 kB / 1.01 GB, free: 14.64 MB / 0.7136 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 0.007/1.96, allocations: 2.676 MB / 1.013 GB, free: 11.94 MB / 0.7136 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated