Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_6.0.0_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.DD")
Notification: Performance of loadModel(Buildings): time 3.895/3.895, allocations: 432.8 MB / 444.9 MB, free: 15.7 MB / 362.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.772e-05/3.778e-05, allocations: 7.781 kB / 0.5337 GB, free: 12.27 MB / 442.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1732/0.1733, allocations: 98.71 MB / 0.6301 GB, free: 6.184 MB / 0.5105 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.739/0.9123, allocations: 185.6 MB / 0.8114 GB, free: 56.98 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003382/0.9127, allocations: 113.5 kB / 0.8115 GB, free: 56.98 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4332/1.346, allocations: 124 MB / 0.9326 GB, free: 3.547 MB / 0.6667 GB
Notification: Performance of FrontEnd: time 2.589e-06/1.346, allocations: 4 kB / 0.9326 GB, free: 3.543 MB / 0.6667 GB
Notification: Performance of Transformations before backend: time 0.0001924/1.346, allocations: 71.98 kB / 0.9327 GB, free: 3.473 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: 874
 * Number of variables: 874
Notification: Performance of Generate backend data structure: time 0.009781/1.356, allocations: 2.693 MB / 0.9353 GB, free: 0.7227 MB / 0.6667 GB
Notification: Performance of prepare preOptimizeDAE: time 4.482e-05/1.356, allocations: 11.97 kB / 0.9353 GB, free: 0.7109 MB / 0.6667 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01593/1.372, allocations: 2.087 MB / 0.9374 GB, free: 14.62 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006137/1.378, allocations: 2.005 MB / 0.9393 GB, free: 12.57 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003402/1.379, allocations: 238.2 kB / 0.9395 GB, free: 12.33 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001593/1.38, allocations: 296 kB / 0.9398 GB, free: 12.04 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01685/1.397, allocations: 5.323 MB / 0.945 GB, free: 6.613 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 9.819e-05/1.397, allocations: 3.906 kB / 0.945 GB, free: 6.609 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008003/1.398, allocations: 132 kB / 0.9451 GB, free: 6.48 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0006887/1.399, allocations: 297.2 kB / 0.9454 GB, free: 6.188 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01468/1.413, allocations: 4.973 MB / 0.9503 GB, free: 1.207 MB / 0.6823 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04764/1.461, allocations: 24.83 MB / 0.9745 GB, free: 6.316 MB / 0.7136 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009435/1.471, allocations: 4.941 MB / 0.9794 GB, free: 1.02 MB / 0.7136 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.008828/1.479, allocations: 2.31 MB / 0.9816 GB, free: 14.7 MB / 0.7292 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0005885/1.48, allocations: 139 kB / 0.9818 GB, free: 14.54 MB / 0.7292 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001078/1.48, allocations: 72.44 kB / 0.9818 GB, free: 14.46 MB / 0.7292 GB
Notification: Performance of pre-optimization done (n=230): time 1.128e-05/1.48, allocations: 3.938 kB / 0.9818 GB, free: 14.46 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=311): time 0.1566/1.637, allocations: 30.98 MB / 1.012 GB, free: 15.46 MB / 0.7605 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001806/1.637, allocations: 251.8 kB / 1.012 GB, free: 15.17 MB / 0.7605 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002501/1.64, allocations: 1.149 MB / 1.013 GB, free: 14 MB / 0.7605 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006861/1.64, allocations: 69.7 kB / 1.014 GB, free: 13.93 MB / 0.7605 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001231/1.642, allocations: 1.254 MB / 1.015 GB, free: 12.66 MB / 0.7605 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00166/1.643, allocations: 1.043 MB / 1.016 GB, free: 11.6 MB / 0.7605 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004212/1.644, allocations: 68 kB / 1.016 GB, free: 11.53 MB / 0.7605 GB
Notification: Performance of setup shared object (initialization): time 0.000371/1.644, allocations: 436.7 kB / 1.016 GB, free: 11.1 MB / 0.7605 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005559/1.65, allocations: 2.24 MB / 1.018 GB, free: 8.855 MB / 0.7605 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006466/1.656, allocations: 2.9 MB / 1.021 GB, free: 5.691 MB / 0.7605 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007057/1.663, allocations: 2.658 MB / 1.024 GB, free: 3.012 MB / 0.7605 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.806e-05/1.663, allocations: 4 kB / 1.024 GB, free: 3.008 MB / 0.7605 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.02459/1.688, allocations: 8.369 MB / 1.032 GB, free: 10.59 MB / 0.7761 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004166/1.692, allocations: 7.324 MB / 1.039 GB, free: 2.684 MB / 0.7761 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.171e-05/1.692, allocations: 20 kB / 1.039 GB, free: 2.664 MB / 0.7761 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03473/1.727, allocations: 6.755 MB / 1.046 GB, free: 11.89 MB / 0.7917 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004869/1.732, allocations: 0.8306 MB / 1.047 GB, free: 11.06 MB / 0.7917 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03678/1.769, allocations: 16.67 MB / 1.063 GB, free: 10.22 MB / 0.8073 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004963/1.774, allocations: 0.503 MB / 1.063 GB, free: 9.715 MB / 0.8073 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008653/1.775, allocations: 179.9 kB / 1.064 GB, free: 9.539 MB / 0.8073 GB
Notification: Performance of prepare postOptimizeDAE: time 1.506e-05/1.775, allocations: 4 kB / 1.064 GB, free: 9.535 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 0.006973/1.782, allocations: 2.696 MB / 1.066 GB, free: 6.816 MB / 0.8073 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated