Running command: translateModel(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.UnbalancedStepDown.YD")
Notification: Performance of loadModel(Buildings): time 3.687/3.687, allocations: 403.3 MB / 415.4 MB, free: 13.02 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.591e-05/3.605e-05, allocations: 4 kB / 0.4991 GB, free: 13.43 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.4833/0.4834, allocations: 92.69 MB / 0.5896 GB, free: 14.5 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.3067/0.7902, allocations: 182.6 MB / 0.7679 GB, free: 7.633 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0003424/0.7905, allocations: 115.9 kB / 0.768 GB, free: 7.52 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 0.8714/1.662, allocations: 137.2 MB / 0.902 GB, free: 63.53 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 3.237e-06/1.662, allocations: 4 kB / 0.902 GB, free: 63.53 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001764/1.662, allocations: 79.88 kB / 0.9021 GB, free: 63.45 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: 994
 * Number of variables: 994
Notification: Performance of Generate backend data structure: time 0.009502/1.672, allocations: 2.949 MB / 0.9049 GB, free: 60.45 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 4.628e-05/1.672, allocations: 11.98 kB / 0.905 GB, free: 60.43 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01576/1.688, allocations: 2.207 MB / 0.9071 GB, free: 58.22 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.005947/1.694, allocations: 2.189 MB / 0.9093 GB, free: 55.98 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004254/1.694, allocations: 271.1 kB / 0.9095 GB, free: 55.71 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001846/1.696, allocations: 340 kB / 0.9098 GB, free: 55.38 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02054/1.716, allocations: 5.975 MB / 0.9157 GB, free: 49.31 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001978/1.717, allocations: 3.938 kB / 0.9157 GB, free: 49.3 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002049/1.719, allocations: 152 kB / 0.9158 GB, free: 49.16 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0009967/1.72, allocations: 306.1 kB / 0.9161 GB, free: 48.86 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02331/1.743, allocations: 5.372 MB / 0.9214 GB, free: 43.48 MB / 0.6511 GB
Warning: The model contains alias variables with conflicting start and/or nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts.
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04282/1.786, allocations: 20.41 MB / 0.9413 GB, free: 22.41 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.007153/1.793, allocations: 4.461 MB / 0.9456 GB, free: 17.64 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.004022/1.797, allocations: 2.05 MB / 0.9476 GB, free: 15.57 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0003003/1.798, allocations: 135 kB / 0.9478 GB, free: 15.43 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.896e-05/1.798, allocations: 64.48 kB / 0.9478 GB, free: 15.35 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 6.431e-06/1.798, allocations: 0 / 0.9478 GB, free: 15.35 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1104/1.908, allocations: 25.57 MB / 0.9728 GB, free: 5.734 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001659/1.908, allocations: 239.6 kB / 0.973 GB, free: 5.449 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002772/1.911, allocations: 1.304 MB / 0.9743 GB, free: 4.137 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005532/1.912, allocations: 69.7 kB / 0.9744 GB, free: 4.062 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001349/1.913, allocations: 1.493 MB / 0.9758 GB, free: 2.547 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00144/1.915, allocations: 0.9318 MB / 0.9767 GB, free: 1.602 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004103/1.915, allocations: 68 kB / 0.9768 GB, free: 1.535 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003606/1.915, allocations: 448.8 kB / 0.9772 GB, free: 1.09 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004803/1.92, allocations: 2.107 MB / 0.9793 GB, free: 14.98 MB / 0.6823 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.005934/1.926, allocations: 2.987 MB / 0.9822 GB, free: 11.61 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.005872/1.932, allocations: 2.573 MB / 0.9847 GB, free: 9.016 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.635e-05/1.932, allocations: 8 kB / 0.9847 GB, free: 9.008 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02315/1.955, allocations: 7.983 MB / 0.9925 GB, free: 0.9648 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005579/1.961, allocations: 10.63 MB / 1.003 GB, free: 5.492 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.941e-05/1.961, allocations: 28 kB / 1.003 GB, free: 5.465 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.02811/1.989, allocations: 5.71 MB / 1.009 GB, free: 15.74 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005233/1.994, allocations: 0.8775 MB / 1.009 GB, free: 14.86 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.03232/2.027, allocations: 14.58 MB / 1.024 GB, free: 108 kB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005173/2.032, allocations: 0.5456 MB / 1.024 GB, free: 15.56 MB / 0.7292 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008754/2.033, allocations: 171.9 kB / 1.024 GB, free: 15.39 MB / 0.7292 GB
Notification: Performance of prepare postOptimizeDAE: time 1.544e-05/2.033, allocations: 4 kB / 1.024 GB, free: 15.39 MB / 0.7292 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 0.006696/2.04, allocations: 2.594 MB / 1.027 GB, free: 12.77 MB / 0.7292 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated