Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD")
Notification: Performance of loadModel(Buildings): time 3.519/3.519, allocations: 403.3 MB / 415.4 MB, free: 12.98 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.993e-05/4.009e-05, allocations: 11.92 kB / 0.4991 GB, free: 13.41 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4808/0.4809, allocations: 92.69 MB / 0.5896 GB, free: 14.47 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.2609/0.7418, allocations: 180.8 MB / 0.7661 GB, free: 9.445 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003919/0.7423, allocations: 115.9 kB / 0.7662 GB, free: 9.332 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.84/1.582, allocations: 122.3 MB / 0.8856 GB, free: 80.34 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 3.132e-06/1.582, allocations: 0 / 0.8856 GB, free: 80.34 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001509/1.583, allocations: 75.86 kB / 0.8857 GB, free: 80.26 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 0.00843/1.591, allocations: 2.662 MB / 0.8883 GB, free: 77.54 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.153e-05/1.591, allocations: 11.97 kB / 0.8883 GB, free: 77.53 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01472/1.606, allocations: 2.071 MB / 0.8903 GB, free: 75.45 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005207/1.611, allocations: 1.99 MB / 0.8923 GB, free: 73.42 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002561/1.611, allocations: 230.1 kB / 0.8925 GB, free: 73.19 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001483/1.613, allocations: 300 kB / 0.8928 GB, free: 72.9 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01441/1.627, allocations: 5.322 MB / 0.898 GB, free: 67.46 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001006/1.627, allocations: 11.92 kB / 0.898 GB, free: 67.45 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008399/1.628, allocations: 128 kB / 0.8981 GB, free: 67.33 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005697/1.629, allocations: 285.3 kB / 0.8984 GB, free: 67.05 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01248/1.641, allocations: 5.018 MB / 0.9033 GB, free: 62.02 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0352/1.677, allocations: 18.39 MB / 0.9212 GB, free: 43.11 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.007326/1.684, allocations: 4.969 MB / 0.9261 GB, free: 37.79 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004441/1.688, allocations: 2.31 MB / 0.9283 GB, free: 35.46 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003257/1.689, allocations: 143 kB / 0.9285 GB, free: 35.31 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.995e-05/1.689, allocations: 60.56 kB / 0.9285 GB, free: 35.24 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=230): time 6.48e-06/1.689, allocations: 7.938 kB / 0.9285 GB, free: 35.23 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=311): time 0.1426/1.831, allocations: 30.93 MB / 0.9587 GB, free: 4.289 MB / 0.6511 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 8.488e-05/1.832, allocations: 243.9 kB / 0.959 GB, free: 4 MB / 0.6511 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00195/1.834, allocations: 1.115 MB / 0.9601 GB, free: 2.867 MB / 0.6511 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006419/1.834, allocations: 73.7 kB / 0.9601 GB, free: 2.789 MB / 0.6511 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0007188/1.835, allocations: 1.227 MB / 0.9613 GB, free: 1.543 MB / 0.6511 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0013/1.836, allocations: 1.043 MB / 0.9623 GB, free: 496 kB / 0.6511 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.000463/1.837, allocations: 64 kB / 0.9624 GB, free: 432 kB / 0.6511 GB
Notification: Performance of setup shared object (initialization): time 0.0002861/1.837, allocations: 444.7 kB / 0.9628 GB, free: 15.98 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005463/1.843, allocations: 2.232 MB / 0.965 GB, free: 13.75 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006529/1.849, allocations: 2.93 MB / 0.9679 GB, free: 10.55 MB / 0.6667 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006404/1.856, allocations: 2.654 MB / 0.9705 GB, free: 7.871 MB / 0.6667 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.003e-05/1.856, allocations: 8 kB / 0.9705 GB, free: 7.863 MB / 0.6667 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02455/1.88, allocations: 8.412 MB / 0.9787 GB, free: 15.4 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003889/1.884, allocations: 7.323 MB / 0.9858 GB, free: 7.496 MB / 0.6823 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.429e-05/1.884, allocations: 16 kB / 0.9859 GB, free: 7.48 MB / 0.6823 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03462/1.919, allocations: 6.727 MB / 0.9924 GB, free: 0.7383 MB / 0.6823 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004957/1.924, allocations: 0.8268 MB / 0.9932 GB, free: 15.91 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03679/1.961, allocations: 16.64 MB / 1.009 GB, free: 15.09 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004889/1.966, allocations: 0.5069 MB / 1.01 GB, free: 14.58 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008948/1.967, allocations: 175.9 kB / 1.01 GB, free: 14.41 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.648e-05/1.967, allocations: 9.656 kB / 1.01 GB, free: 14.4 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 0.007067/1.974, allocations: 2.708 MB / 1.013 GB, free: 11.67 MB / 0.7136 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated