Running command: "" <> buildModelFMU(Buildings.Electrical.AC.ThreePhasesUnbalanced.Validation.IEEETests.Test4NodesFeeder.BalancedStepDown.DD,fileNamePrefix="Buildings_latest_Buildings_Electrical_AC_ThreePhasesUnbalanced_Validation_IEEETests_Test4NodesFeeder_BalancedStepDown_DD",fmuType="me",version="2.0",platforms={"static"})
Notification: Performance of loadModel(Buildings): time 4.342/4.342, allocations: 464.6 MB / 476.8 MB, free: 2.195 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 5.006e-05/5.055e-05, allocations: 4 kB / 0.5732 GB, free: 5.59 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.258/0.2581, allocations: 107.2 MB / 0.6779 GB, free: 10.25 MB / 0.5573 GB
Notification: Performance of FrontEnd - scodeFlatten: time 0.9621/1.22, allocations: 192.2 MB / 0.8656 GB, free: 11.4 MB / 0.6667 GB
Notification: Performance of FrontEnd - mkProgramGraph: time 0.0004591/1.221, allocations: 119.7 kB / 0.8657 GB, free: 11.32 MB / 0.6667 GB
Notification: Performance of FrontEnd - DAE generated: time 0.5133/1.734, allocations: 123.4 MB / 0.9862 GB, free: 10.32 MB / 0.7761 GB
Notification: Performance of FrontEnd: time 2.224e-06/1.734, allocations: 0 / 0.9862 GB, free: 10.32 MB / 0.7761 GB
Notification: Performance of Transformations before backend: time 0.000195/1.734, allocations: 64 kB / 0.9862 GB, free: 10.25 MB / 0.7761 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 863
 * Number of variables: 863
Notification: Performance of Generate backend data structure: time 0.01178/1.746, allocations: 2.677 MB / 0.9889 GB, free: 7.52 MB / 0.7761 GB
Notification: Performance of prepare preOptimizeDAE: time 5.757e-05/1.746, allocations: 8.031 kB / 0.9889 GB, free: 7.512 MB / 0.7761 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.002162/1.748, allocations: 488 kB / 0.9893 GB, free: 7.023 MB / 0.7761 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02217/1.771, allocations: 2.083 MB / 0.9914 GB, free: 4.934 MB / 0.7761 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.007223/1.778, allocations: 2.001 MB / 0.9933 GB, free: 2.887 MB / 0.7761 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003384/1.778, allocations: 226.1 kB / 0.9935 GB, free: 2.664 MB / 0.7761 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.001698/1.78, allocations: 304 kB / 0.9938 GB, free: 2.367 MB / 0.7761 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.019/1.799, allocations: 5.279 MB / 0.999 GB, free: 12.98 MB / 0.7917 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0001295/1.799, allocations: 11.92 kB / 0.999 GB, free: 12.97 MB / 0.7917 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001365/1.801, allocations: 128 kB / 0.9991 GB, free: 12.84 MB / 0.7917 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.001052/1.802, allocations: 285.3 kB / 0.9994 GB, free: 12.56 MB / 0.7917 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01781/1.819, allocations: 4.961 MB / 1.004 GB, free: 7.594 MB / 0.7917 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05794/1.877, allocations: 24.76 MB / 1.028 GB, free: 12.77 MB / 0.823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01602/1.894, allocations: 4.952 MB / 1.033 GB, free: 7.453 MB / 0.823 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.009257/1.903, allocations: 2.306 MB / 1.035 GB, free: 5.133 MB / 0.823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0006251/1.904, allocations: 139 kB / 1.036 GB, free: 4.977 MB / 0.823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 9.362e-05/1.904, allocations: 64.5 kB / 1.036 GB, free: 4.906 MB / 0.823 GB
Notification: Performance of pre-optimization done (n=230): time 9.478e-06/1.904, allocations: 0 / 1.036 GB, free: 4.906 MB / 0.823 GB
Notification: Performance of matching and sorting (n=311): time 0.2648/2.169, allocations: 30.94 MB / 1.066 GB, free: 5.957 MB / 0.8542 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002128/2.169, allocations: 235.9 kB / 1.066 GB, free: 5.676 MB / 0.8542 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004215/2.173, allocations: 1.123 MB / 1.067 GB, free: 4.535 MB / 0.8542 GB
Notification: Performance of collectPreVariables (initialization): time 0.00112/2.174, allocations: 73.7 kB / 1.067 GB, free: 4.457 MB / 0.8542 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001866/2.176, allocations: 1.235 MB / 1.069 GB, free: 3.203 MB / 0.8542 GB
Notification: Performance of collectInitialBindings (initialization): time 0.00269/2.179, allocations: 1.047 MB / 1.07 GB, free: 2.141 MB / 0.8542 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008981/2.18, allocations: 64 kB / 1.07 GB, free: 2.078 MB / 0.8542 GB
Notification: Performance of setup shared object (initialization): time 0.0005782/2.18, allocations: 440.7 kB / 1.07 GB, free: 1.641 MB / 0.8542 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.009946/2.19, allocations: 2.232 MB / 1.072 GB, free: 15.4 MB / 0.8698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01149/2.202, allocations: 2.912 MB / 1.075 GB, free: 12.22 MB / 0.8698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.008946/2.211, allocations: 2.652 MB / 1.078 GB, free: 9.547 MB / 0.8698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.405e-05/2.211, allocations: 8 kB / 1.078 GB, free: 9.539 MB / 0.8698 GB
Notification: Performance of matching and sorting (n=412) (initialization): time 0.03549/2.247, allocations: 8.369 MB / 1.086 GB, free: 1.121 MB / 0.8698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003538/2.25, allocations: 7.315 MB / 1.093 GB, free: 9.227 MB / 0.8855 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.547e-05/2.25, allocations: 20 kB / 1.093 GB, free: 9.207 MB / 0.8855 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.04703/2.297, allocations: 6.755 MB / 1.1 GB, free: 2.441 MB / 0.8855 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00744/2.305, allocations: 0.8267 MB / 1.1 GB, free: 1.613 MB / 0.8855 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.6436/2.948, allocations: 16.65 MB / 1.117 GB, free: 251.3 MB / 0.8855 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007686/2.956, allocations: 0.5084 MB / 1.117 GB, free: 251.3 MB / 0.8855 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001674/2.958, allocations: 177.5 kB / 1.117 GB, free: 251.3 MB / 0.8855 GB
Notification: Performance of prepare postOptimizeDAE: time 1.802e-05/2.958, allocations: 3.812 kB / 1.117 GB, free: 251.3 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 0.008821/2.967, allocations: 2.685 MB / 1.12 GB, free: 251.2 MB / 0.8855 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated