Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.DD")
Notification: Performance of loadModel(Buildings): time 3.9/3.9, allocations: 432.7 MB / 444.9 MB, free: 15.68 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.466e-05/3.483e-05, allocations: 4.375 kB / 0.5337 GB, free: 12.2 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1709/0.171, allocations: 98.73 MB / 0.6302 GB, free: 6.164 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7346/0.9056, allocations: 184.9 MB / 0.8107 GB, free: 57.29 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003478/0.906, allocations: 119.7 kB / 0.8108 GB, free: 57.29 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4289/1.335, allocations: 123.3 MB / 0.9313 GB, free: 4.957 MB / 0.6667 GB
Notification: Performance of FrontEnd: time 2.481e-06/1.335, allocations: 0 / 0.9313 GB, free: 4.957 MB / 0.6667 GB
Notification: Performance of Transformations before backend: time 0.0001688/1.335, allocations: 64 kB / 0.9313 GB, free: 4.895 MB / 0.6667 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 0.008902/1.344, allocations: 2.67 MB / 0.934 GB, free: 2.168 MB / 0.6667 GB
Notification: Performance of prepare preOptimizeDAE: time 4.744e-05/1.344, allocations: 8.031 kB / 0.934 GB, free: 2.16 MB / 0.6667 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01583/1.36, allocations: 2.083 MB / 0.936 GB, free: 72 kB / 0.6667 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005876/1.366, allocations: 1.997 MB / 0.9379 GB, free: 14.03 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002641/1.366, allocations: 226.1 kB / 0.9382 GB, free: 13.8 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001316/1.368, allocations: 304 kB / 0.9385 GB, free: 13.51 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01502/1.383, allocations: 5.286 MB / 0.9436 GB, free: 8.113 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 8.467e-05/1.383, allocations: 8 kB / 0.9436 GB, free: 8.105 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006141/1.383, allocations: 131.9 kB / 0.9437 GB, free: 7.977 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006784/1.384, allocations: 289.2 kB / 0.944 GB, free: 7.691 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01361/1.398, allocations: 4.961 MB / 0.9489 GB, free: 2.723 MB / 0.6823 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0454/1.443, allocations: 24.76 MB / 0.973 GB, free: 7.902 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008897/1.452, allocations: 4.935 MB / 0.9779 GB, free: 2.617 MB / 0.7136 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005164/1.457, allocations: 2.31 MB / 0.9801 GB, free: 296 kB / 0.7136 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003591/1.458, allocations: 143 kB / 0.9803 GB, free: 132 kB / 0.7136 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.817e-05/1.458, allocations: 56.56 kB / 0.9803 GB, free: 68 kB / 0.7136 GB
Notification: Performance of pre-optimization done (n=230): time 8.845e-06/1.458, allocations: 4 kB / 0.9803 GB, free: 64 kB / 0.7136 GB
Notification: Performance of matching and sorting (n=311): time 0.1524/1.61, allocations: 30.94 MB / 1.011 GB, free: 1.117 MB / 0.7448 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001719/1.61, allocations: 243.8 kB / 1.011 GB, free: 0.8281 MB / 0.7448 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002354/1.613, allocations: 1.119 MB / 1.012 GB, free: 15.69 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006277/1.613, allocations: 73.7 kB / 1.012 GB, free: 15.61 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001157/1.615, allocations: 1.231 MB / 1.013 GB, free: 14.36 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001635/1.616, allocations: 1.043 MB / 1.014 GB, free: 13.3 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003973/1.617, allocations: 68 kB / 1.014 GB, free: 13.24 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.0003676/1.617, allocations: 444.7 kB / 1.015 GB, free: 12.8 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005015/1.622, allocations: 2.236 MB / 1.017 GB, free: 10.56 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005977/1.628, allocations: 2.904 MB / 1.02 GB, free: 7.387 MB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006114/1.634, allocations: 2.65 MB / 1.022 GB, free: 4.715 MB / 0.7605 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.523e-05/1.634, allocations: 8 kB / 1.022 GB, free: 4.707 MB / 0.7605 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.023/1.657, allocations: 8.361 MB / 1.03 GB, free: 12.29 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004095/1.661, allocations: 7.324 MB / 1.038 GB, free: 4.391 MB / 0.7761 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.348e-05/1.661, allocations: 23.94 kB / 1.038 GB, free: 4.367 MB / 0.7761 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03468/1.696, allocations: 6.762 MB / 1.044 GB, free: 13.59 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004981/1.701, allocations: 0.8228 MB / 1.045 GB, free: 12.77 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03641/1.738, allocations: 16.66 MB / 1.061 GB, free: 11.92 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004852/1.742, allocations: 0.5107 MB / 1.062 GB, free: 11.41 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008584/1.743, allocations: 179.9 kB / 1.062 GB, free: 11.23 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 1.407e-05/1.743, allocations: 4 kB / 1.062 GB, free: 11.23 MB / 0.8073 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 0.006824/1.75, allocations: 2.688 MB / 1.065 GB, free: 8.523 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated