Running command: translateModel(Buildings.Examples.Tutorial.SpaceCooling.System3,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Examples.Tutorial.SpaceCooling.System3") Notification: Performance of loadModel(Buildings): time 4.639/4.639, allocations: 458.9 MB / 473.4 MB, free: 11.88 MB / 378.7 MB Notification: Performance of FrontEnd - loaded program: time 2.968e-05/2.973e-05, allocations: 2.656 kB / 0.5697 GB, free: 9.836 MB / 458.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2363/0.2363, allocations: 106.2 MB / 0.6734 GB, free: 2.641 MB / 0.5417 GB Notification: Performance of NFInst.instantiate(Buildings.Examples.Tutorial.SpaceCooling.System3): time 1.067/1.304, allocations: 291.4 MB / 0.958 GB, free: 7.98 MB / 0.7292 GB Notification: Performance of NFInst.instExpressions: time 0.08081/1.385, allocations: 36.8 MB / 0.9939 GB, free: 3.109 MB / 0.7605 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.007876/1.392, allocations: 215.1 kB / 0.9941 GB, free: 2.898 MB / 0.7605 GB Notification: Performance of NFTyping.typeComponents: time 0.01033/1.403, allocations: 2.211 MB / 0.9963 GB, free: 0.6758 MB / 0.7605 GB Notification: Performance of NFTyping.typeBindings: time 0.02831/1.431, allocations: 6.461 MB / 1.003 GB, free: 10.2 MB / 0.7761 GB Notification: Performance of NFTyping.typeClassSections: time 0.02108/1.452, allocations: 4.861 MB / 1.007 GB, free: 5.324 MB / 0.7761 GB Notification: Performance of NFFlatten.flatten: time 0.03352/1.486, allocations: 10.6 MB / 1.018 GB, free: 10.71 MB / 0.7917 GB Notification: Performance of NFFlatten.resolveConnections: time 0.01508/1.501, allocations: 6.253 MB / 1.024 GB, free: 4.41 MB / 0.7917 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01888/1.52, allocations: 6.061 MB / 1.03 GB, free: 14.33 MB / 0.8073 GB Notification: Performance of NFSimplifyModel.simplify: time 0.01173/1.532, allocations: 4.119 MB / 1.034 GB, free: 10.2 MB / 0.8073 GB Notification: Performance of NFFlatten.collectFunctions: time 0.02193/1.554, allocations: 4.08 MB / 1.038 GB, free: 6.113 MB / 0.8073 GB Notification: Performance of NFPackage.collectConstants: time 0.00506/1.559, allocations: 376 kB / 1.038 GB, free: 5.746 MB / 0.8073 GB Notification: Performance of NFScalarize.scalarize: time 0.006667/1.566, allocations: 2.122 MB / 1.04 GB, free: 3.617 MB / 0.8073 GB Notification: Performance of NFVerifyModel.verify: time 0.007066/1.573, allocations: 0.9453 MB / 1.041 GB, free: 2.672 MB / 0.8073 GB Notification: Performance of NFConvertDAE.convert: time 0.0359/1.609, allocations: 14.88 MB / 1.056 GB, free: 3.758 MB / 0.823 GB Notification: Performance of FrontEnd - DAE generated: time 5.31e-06/1.609, allocations: 0 / 1.056 GB, free: 3.758 MB / 0.823 GB Notification: Performance of FrontEnd: time 3.216e-06/1.609, allocations: 0 / 1.056 GB, free: 3.758 MB / 0.823 GB Notification: Performance of Transformations before backend: time 0.0005434/1.609, allocations: 0 / 1.056 GB, free: 3.758 MB / 0.823 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1766 * Number of variables: 1766 Notification: Performance of Generate backend data structure: time 0.02923/1.639, allocations: 7.92 MB / 1.063 GB, free: 11.75 MB / 0.8386 GB Notification: Performance of prepare preOptimizeDAE: time 6.552e-05/1.639, allocations: 8.031 kB / 1.063 GB, free: 11.75 MB / 0.8386 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02625/1.665, allocations: 2.763 MB / 1.066 GB, free: 8.969 MB / 0.8386 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0261/1.691, allocations: 7.929 MB / 1.074 GB, free: 0.9531 MB / 0.8386 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002857/1.694, allocations: 1.147 MB / 1.075 GB, free: 15.7 MB / 0.8542 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002995/1.697, allocations: 0.6951 MB / 1.076 GB, free: 15.01 MB / 0.8542 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.03372/1.731, allocations: 9.768 MB / 1.085 GB, free: 5.031 MB / 0.8542 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002268/1.731, allocations: 15.84 kB / 1.085 GB, free: 5.016 MB / 0.8542 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.001641/1.733, allocations: 288 kB / 1.085 GB, free: 4.734 MB / 0.8542 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004722/1.733, allocations: 313.3 kB / 1.086 GB, free: 4.426 MB / 0.8542 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03428/1.767, allocations: 9.319 MB / 1.095 GB, free: 11.09 MB / 0.8698 GB Warning: The model contains alias variables with redundant start and/or conflicting 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 0.09603/1.864, allocations: 38.56 MB / 1.132 GB, free: 2.277 MB / 0.9011 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01834/1.882, allocations: 5.901 MB / 1.138 GB, free: 12.39 MB / 0.9167 GB Notification: Performance of preOpt evalFunc (simulation): time 0.002333/1.884, allocations: 0.9428 MB / 1.139 GB, free: 11.29 MB / 0.9167 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0127/1.897, allocations: 3.631 MB / 1.143 GB, free: 7.629 MB / 0.9167 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.005354/1.902, allocations: 372.2 kB / 1.143 GB, free: 7.262 MB / 0.9167 GB Notification: Performance of pre-optimization done (n=477): time 1.674e-05/1.903, allocations: 0 / 1.143 GB, free: 7.262 MB / 0.9167 GB Notification: Performance of matching and sorting (n=484): time 1.26/3.162, allocations: 17.25 MB / 1.16 GB, free: 345.3 MB / 0.9168 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002882/3.163, allocations: 0.5093 MB / 1.16 GB, free: 344.7 MB / 0.9168 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02764/3.19, allocations: 5.782 MB / 1.166 GB, free: 342.8 MB / 0.9168 GB Notification: Performance of collectPreVariables (initialization): time 0.001536/3.192, allocations: 136.2 kB / 1.166 GB, free: 342.7 MB / 0.9168 GB Notification: Performance of collectInitialEqns (initialization): time 0.006151/3.198, allocations: 3.667 MB / 1.17 GB, free: 340 MB / 0.9168 GB Notification: Performance of collectInitialBindings (initialization): time 0.003399/3.202, allocations: 1.669 MB / 1.171 GB, free: 338.7 MB / 0.9168 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0009014/3.203, allocations: 101.3 kB / 1.171 GB, free: 338.6 MB / 0.9168 GB Notification: Performance of setup shared object (initialization): time 0.0006238/3.203, allocations: 0.5004 MB / 1.172 GB, free: 338.3 MB / 0.9168 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.01143/3.215, allocations: 2.856 MB / 1.175 GB, free: 337.3 MB / 0.9168 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0126/3.227, allocations: 4.09 MB / 1.179 GB, free: 335 MB / 0.9168 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01235/3.24, allocations: 3.467 MB / 1.182 GB, free: 333.6 MB / 0.9168 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.2e-05/3.24, allocations: 7.938 kB / 1.182 GB, free: 333.6 MB / 0.9168 GB Notification: Performance of matching and sorting (n=648) (initialization): time 0.02887/3.269, allocations: 7.968 MB / 1.19 GB, free: 330.6 MB / 0.9168 GB Notification: Performance of prepare postOptimizeDAE: time 0.002/3.271, allocations: 9.268 MB / 1.199 GB, free: 320.5 MB / 0.9168 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001171/3.271, allocations: 23.22 kB / 1.199 GB, free: 320.5 MB / 0.9168 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00251/3.274, allocations: 440.4 kB / 1.199 GB, free: 320.4 MB / 0.9168 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01209/3.286, allocations: 1.354 MB / 1.201 GB, free: 320.3 MB / 0.9168 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01195/3.298, allocations: 8.769 MB / 1.209 GB, free: 312.9 MB / 0.9168 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.014/3.312, allocations: 0.8995 MB / 1.21 GB, free: 312.7 MB / 0.9168 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001455/3.313, allocations: 208.4 kB / 1.21 GB, free: 312.7 MB / 0.9168 GB Notification: Performance of prepare postOptimizeDAE: time 1.665e-05/3.313, allocations: 4.688 kB / 1.21 GB, free: 312.7 MB / 0.9168 GB Error: Internal error IndexReduction.pantelidesIndexReduction failed! System is structurally singular and cannot be handled because the number of unassigned equations is larger than the number of states. Use -d=bltdump to get more information. Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01282/3.326, allocations: 3.352 MB / 1.214 GB, free: 311.3 MB / 0.9168 GB Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed. Error: No system for the symbolic initialization was generated