Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.YD,fileNamePrefix="Buildings_5_0_1_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_YD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.01/4.01, allocations: 403.3 MB / 415.4 MB, free: 13 MB / 330.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.713e-05/3.709e-05, allocations: 4 kB / 0.4992 GB, free: 13.32 MB / 426.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.629/0.629, allocations: 92.69 MB / 0.5897 GB, free: 14.36 MB / 490.7 MB
Notification: Performance of FrontEnd - scodeFlatten: time 0.3353/0.9644, allocations: 182 MB / 0.7674 GB, free: 8.133 MB / 0.6511 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004783/0.9649, allocations: 107.9 kB / 0.7675 GB, free: 8.027 MB / 0.6511 GB
Notification: Performance of FrontEnd - DAE generated: time 1.099/2.064, allocations: 133 MB / 0.8974 GB, free: 68.08 MB / 0.6511 GB
Notification: Performance of FrontEnd: time 3.026e-06/2.064, allocations: 0 / 0.8974 GB, free: 68.08 MB / 0.6511 GB
Notification: Performance of Transformations before backend: time 0.0001976/2.065, allocations: 79.98 kB / 0.8974 GB, free: 68 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: 983
 * Number of variables: 983
Notification: Performance of Generate backend data structure: time 0.01284/2.077, allocations: 2.925 MB / 0.9003 GB, free: 65.02 MB / 0.6511 GB
Notification: Performance of prepare preOptimizeDAE: time 5.675e-05/2.077, allocations: 8.031 kB / 0.9003 GB, free: 65.02 MB / 0.6511 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002706/2.08, allocations: 0.5421 MB / 0.9008 GB, free: 64.46 MB / 0.6511 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02198/2.102, allocations: 2.106 MB / 0.9029 GB, free: 62.35 MB / 0.6511 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007503/2.11, allocations: 2.177 MB / 0.905 GB, free: 60.13 MB / 0.6511 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003624/2.11, allocations: 271 kB / 0.9053 GB, free: 59.86 MB / 0.6511 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002191/2.112, allocations: 340 kB / 0.9056 GB, free: 59.53 MB / 0.6511 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.02046/2.133, allocations: 5.912 MB / 0.9114 GB, free: 53.52 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001495/2.133, allocations: 4 kB / 0.9114 GB, free: 53.52 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001508/2.135, allocations: 148 kB / 0.9115 GB, free: 53.37 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.000893/2.136, allocations: 305.9 kB / 0.9118 GB, free: 53.07 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01699/2.153, allocations: 5.329 MB / 0.917 GB, free: 47.73 MB / 0.6511 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05124/2.204, allocations: 20.28 MB / 0.9368 GB, free: 26.81 MB / 0.6511 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009364/2.213, allocations: 4.461 MB / 0.9412 GB, free: 22.05 MB / 0.6511 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.005174/2.219, allocations: 2.054 MB / 0.9432 GB, free: 19.98 MB / 0.6511 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0004001/2.219, allocations: 143 kB / 0.9433 GB, free: 19.82 MB / 0.6511 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.215e-05/2.219, allocations: 56.56 kB / 0.9434 GB, free: 19.75 MB / 0.6511 GB
Notification: Performance of pre-optimization done (n=208): time 5.561e-06/2.219, allocations: 3.938 kB / 0.9434 GB, free: 19.75 MB / 0.6511 GB
Notification: Performance of matching and sorting (n=277): time 0.1691/2.388, allocations: 25.89 MB / 0.9687 GB, free: 9.812 MB / 0.6667 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001665/2.388, allocations: 243.6 kB / 0.9689 GB, free: 9.523 MB / 0.6667 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003154/2.392, allocations: 1.262 MB / 0.9701 GB, free: 8.25 MB / 0.6667 GB
Notification: Performance of collectPreVariables (initialization): time 0.0007733/2.392, allocations: 69.7 kB / 0.9702 GB, free: 8.176 MB / 0.6667 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001463/2.394, allocations: 1.474 MB / 0.9716 GB, free: 6.68 MB / 0.6667 GB
Notification: Performance of collectInitialBindings (initialization): time 0.001783/2.396, allocations: 0.9319 MB / 0.9726 GB, free: 5.734 MB / 0.6667 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004919/2.396, allocations: 68 kB / 0.9726 GB, free: 5.668 MB / 0.6667 GB
Notification: Performance of setup shared object (initialization): time 0.0003486/2.397, allocations: 444.8 kB / 0.973 GB, free: 5.227 MB / 0.6667 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.005849/2.402, allocations: 2.115 MB / 0.9751 GB, free: 3.109 MB / 0.6667 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.007124/2.41, allocations: 2.999 MB / 0.978 GB, free: 15.73 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.007131/2.417, allocations: 2.588 MB / 0.9806 GB, free: 13.12 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.713e-05/2.417, allocations: 8 kB / 0.9806 GB, free: 13.11 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=416) (initialization): time 0.02962/2.447, allocations: 8.034 MB / 0.9884 GB, free: 5.016 MB / 0.6823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004692/2.451, allocations: 10.63 MB / 0.9988 GB, free: 9.547 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.605e-05/2.451, allocations: 24 kB / 0.9988 GB, free: 9.523 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04593/2.497, allocations: 6.51 MB / 1.005 GB, free: 3 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.007674/2.505, allocations: 0.8696 MB / 1.006 GB, free: 2.129 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.04095/2.546, allocations: 14.64 MB / 1.02 GB, free: 3.312 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00773/2.554, allocations: 0.5339 MB / 1.021 GB, free: 2.777 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001199/2.555, allocations: 195.9 kB / 1.021 GB, free: 2.586 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.697e-05/2.555, allocations: 4 kB / 1.021 GB, free: 2.582 MB / 0.7136 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 0.008474/2.564, allocations: 2.609 MB / 1.024 GB, free: 15.95 MB / 0.7292 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated