Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_latest_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepUp.YD")
Notification: Performance of loadModel(Buildings): time 4.262/4.262, allocations: 464.7 MB / 476.8 MB, free: 2.125 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 5.728e-05/5.755e-05, allocations: 4 kB / 0.5731 GB, free: 5.711 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2173/0.2174, allocations: 107.2 MB / 0.6778 GB, free: 10.36 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.7641/0.9816, allocations: 193.9 MB / 0.8671 GB, free: 10.27 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003678/0.982, allocations: 116.4 kB / 0.8672 GB, free: 10.2 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5203/1.502, allocations: 134.9 MB / 0.999 GB, free: 13.15 MB / 0.7917 GB
Notification: Performance of FrontEnd: time 2.852e-06/1.502, allocations: 4 kB / 0.999 GB, free: 13.15 MB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.000205/1.503, allocations: 75.98 kB / 0.9991 GB, free: 13.07 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: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.01104/1.514, allocations: 2.949 MB / 1.002 GB, free: 10.07 MB / 0.7917 GB
Notification: Performance of prepare preOptimizeDAE: time 4.638e-05/1.514, allocations: 8.031 kB / 1.002 GB, free: 10.06 MB / 0.7917 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01638/1.53, allocations: 2.137 MB / 1.004 GB, free: 7.918 MB / 0.7917 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006721/1.537, allocations: 2.185 MB / 1.006 GB, free: 5.688 MB / 0.7917 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003971/1.537, allocations: 267.1 kB / 1.006 GB, free: 5.426 MB / 0.7917 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001839/1.539, allocations: 352 kB / 1.007 GB, free: 5.082 MB / 0.7917 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01963/1.559, allocations: 5.929 MB / 1.013 GB, free: 15.05 MB / 0.8073 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001389/1.559, allocations: 11.92 kB / 1.013 GB, free: 15.04 MB / 0.8073 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001475/1.56, allocations: 144 kB / 1.013 GB, free: 14.9 MB / 0.8073 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0008065/1.561, allocations: 306.1 kB / 1.013 GB, free: 14.6 MB / 0.8073 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01588/1.577, allocations: 5.341 MB / 1.018 GB, free: 9.258 MB / 0.8073 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05205/1.629, allocations: 26.74 MB / 1.044 GB, free: 12.34 MB / 0.8386 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009064/1.638, allocations: 4.469 MB / 1.049 GB, free: 7.562 MB / 0.8386 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004914/1.643, allocations: 2.056 MB / 1.051 GB, free: 5.48 MB / 0.8386 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.000365/1.644, allocations: 131 kB / 1.051 GB, free: 5.332 MB / 0.8386 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 6.981e-05/1.644, allocations: 64.5 kB / 1.051 GB, free: 5.262 MB / 0.8386 GB
Notification: Performance of pre-optimization done (n=208): time 6.071e-06/1.644, allocations: 0 / 1.051 GB, free: 5.262 MB / 0.8386 GB
Notification: Performance of matching and sorting (n=277): time 0.1267/1.771, allocations: 25.93 MB / 1.076 GB, free: 11.29 MB / 0.8698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001704/1.771, allocations: 239.6 kB / 1.076 GB, free: 11 MB / 0.8698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002823/1.774, allocations: 1.308 MB / 1.078 GB, free: 9.688 MB / 0.8698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0006302/1.774, allocations: 69.7 kB / 1.078 GB, free: 9.613 MB / 0.8698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001626/1.776, allocations: 1.509 MB / 1.079 GB, free: 8.082 MB / 0.8698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001568/1.778, allocations: 0.9358 MB / 1.08 GB, free: 7.133 MB / 0.8698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004133/1.778, allocations: 64 kB / 1.08 GB, free: 7.07 MB / 0.8698 GB
Notification: Performance of setup shared object (initialization): time 0.0003597/1.778, allocations: 444.8 kB / 1.081 GB, free: 6.629 MB / 0.8698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005154/1.784, allocations: 2.123 MB / 1.083 GB, free: 4.504 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.006315/1.79, allocations: 2.995 MB / 1.086 GB, free: 1.125 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.006367/1.796, allocations: 2.586 MB / 1.088 GB, free: 14.52 MB / 0.8855 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.738e-05/1.796, allocations: 15.94 kB / 1.088 GB, free: 14.5 MB / 0.8855 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02404/1.82, allocations: 8.05 MB / 1.096 GB, free: 6.391 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 0.5649/2.385, allocations: 10.62 MB / 1.106 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.323e-05/2.385, allocations: 26.81 kB / 1.106 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.03498/2.42, allocations: 6.535 MB / 1.113 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005175/2.426, allocations: 0.8723 MB / 1.114 GB, free: 240.9 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03139/2.457, allocations: 14.66 MB / 1.128 GB, free: 239 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005164/2.462, allocations: 0.5328 MB / 1.129 GB, free: 239 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0009289/2.463, allocations: 195.2 kB / 1.129 GB, free: 239 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.433e-05/2.463, allocations: 3.094 kB / 1.129 GB, free: 239 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 0.006514/2.47, allocations: 2.6 MB / 1.131 GB, free: 239 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated