Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepUp.YD")
Notification: Performance of loadModel(Buildings): time 4.437/4.437, allocations: 464.7 MB / 476.8 MB, free: 2.203 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.543e-05/3.552e-05, allocations: 4 kB / 0.5731 GB, free: 5.707 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2005/0.2006, allocations: 107.1 MB / 0.6778 GB, free: 10.37 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.8057/1.006, allocations: 193.3 MB / 0.8665 GB, free: 10.81 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003331/1.007, allocations: 112.5 kB / 0.8666 GB, free: 10.74 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.4982/1.505, allocations: 134.5 MB / 0.998 GB, free: 14.2 MB / 0.7917 GB
Notification: Performance of FrontEnd: time 2.404e-06/1.505, allocations: 0 / 0.998 GB, free: 14.2 MB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.0001929/1.505, allocations: 71.98 kB / 0.998 GB, free: 14.13 MB / 0.7917 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 983
 * Number of variables: 983
Notification: Performance of Generate backend data structure: time 0.01083/1.516, allocations: 2.929 MB / 1.001 GB, free: 11.15 MB / 0.7917 GB
Notification: Performance of prepare preOptimizeDAE: time 4.772e-05/1.516, allocations: 12.03 kB / 1.001 GB, free: 11.14 MB / 0.7917 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01573/1.532, allocations: 2.118 MB / 1.003 GB, free: 9.012 MB / 0.7917 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006587/1.539, allocations: 2.177 MB / 1.005 GB, free: 6.789 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003749/1.539, allocations: 263 kB / 1.005 GB, free: 6.531 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001752/1.541, allocations: 351.9 kB / 1.006 GB, free: 6.188 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01812/1.559, allocations: 5.904 MB / 1.011 GB, free: 192 kB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001004/1.559, allocations: 4 kB / 1.011 GB, free: 188 kB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008641/1.56, allocations: 148 kB / 1.012 GB, free: 40 kB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0007367/1.561, allocations: 306 kB / 1.012 GB, free: 15.74 MB / 0.8073 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01563/1.576, allocations: 5.329 MB / 1.017 GB, free: 10.41 MB / 0.8073 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05118/1.628, allocations: 26.66 MB / 1.043 GB, free: 13.57 MB / 0.8386 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008932/1.636, allocations: 4.468 MB / 1.048 GB, free: 8.793 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004812/1.641, allocations: 2.052 MB / 1.05 GB, free: 6.715 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003575/1.642, allocations: 135 kB / 1.05 GB, free: 6.562 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.984e-05/1.642, allocations: 60.5 kB / 1.05 GB, free: 6.496 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 6.255e-06/1.642, allocations: 0 / 1.05 GB, free: 6.496 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1259/1.768, allocations: 25.88 MB / 1.075 GB, free: 12.57 MB / 0.8698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001641/1.768, allocations: 243.6 kB / 1.075 GB, free: 12.28 MB / 0.8698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002774/1.771, allocations: 1.27 MB / 1.076 GB, free: 11 MB / 0.8698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006003/1.771, allocations: 73.64 kB / 1.077 GB, free: 10.92 MB / 0.8698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001496/1.773, allocations: 1.482 MB / 1.078 GB, free: 9.418 MB / 0.8698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001563/1.775, allocations: 0.9396 MB / 1.079 GB, free: 8.465 MB / 0.8698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004495/1.775, allocations: 68 kB / 1.079 GB, free: 8.398 MB / 0.8698 GB
Notification: Performance of setup shared object (initialization): time 0.0003782/1.775, allocations: 444.8 kB / 1.079 GB, free: 7.957 MB / 0.8698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005261/1.781, allocations: 2.115 MB / 1.081 GB, free: 5.84 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006605/1.787, allocations: 3.007 MB / 1.084 GB, free: 2.453 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006336/1.794, allocations: 2.578 MB / 1.087 GB, free: 15.85 MB / 0.8855 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.099e-05/1.794, allocations: 8 kB / 1.087 GB, free: 15.84 MB / 0.8855 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02474/1.819, allocations: 8.05 MB / 1.095 GB, free: 7.73 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 0.512/2.331, allocations: 10.61 MB / 1.105 GB, free: 242 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.472e-05/2.331, allocations: 30.09 kB / 1.105 GB, free: 242 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03433/2.365, allocations: 6.528 MB / 1.112 GB, free: 242 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00527/2.37, allocations: 0.8751 MB / 1.112 GB, free: 242 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03065/2.401, allocations: 14.66 MB / 1.127 GB, free: 240.1 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005463/2.407, allocations: 0.532 MB / 1.127 GB, free: 240.1 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008732/2.407, allocations: 193.1 kB / 1.127 GB, free: 240.1 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.432e-05/2.407, allocations: 3.844 kB / 1.127 GB, free: 240.1 MB / 0.8855 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 0.006658/2.414, allocations: 2.603 MB / 1.13 GB, free: 240.1 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated