Running command: translateModel(Buildings.Examples.Tutorial.SpaceCooling.System2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Examples.Tutorial.SpaceCooling.System2")
Notification: Performance of loadModel(Buildings): time 4.577/4.577, allocations: 458.9 MB / 473.4 MB, free: 11.89 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.466e-05/3.461e-05, allocations: 3.812 kB / 0.5697 GB, free: 9.82 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2368/0.2368, allocations: 106.2 MB / 0.6734 GB, free: 2.648 MB / 0.5417 GB
Notification: Performance of NFInst.instantiate(Buildings.Examples.Tutorial.SpaceCooling.System2): time 1.064/1.301, allocations: 291.3 MB / 0.9579 GB, free: 8.242 MB / 0.7292 GB
Notification: Performance of NFInst.instExpressions: time 0.08213/1.383, allocations: 36.79 MB / 0.9938 GB, free: 3.383 MB / 0.7605 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.008342/1.391, allocations: 219.1 kB / 0.994 GB, free: 3.168 MB / 0.7605 GB
Notification: Performance of NFTyping.typeComponents: time 0.01061/1.402, allocations: 2.211 MB / 0.9962 GB, free: 0.9453 MB / 0.7605 GB
Notification: Performance of NFTyping.typeBindings: time 0.02842/1.43, allocations: 6.461 MB / 1.002 GB, free: 10.46 MB / 0.7761 GB
Notification: Performance of NFTyping.typeClassSections: time 0.02053/1.451, allocations: 4.834 MB / 1.007 GB, free: 5.625 MB / 0.7761 GB
Notification: Performance of NFFlatten.flatten: time 0.03164/1.483, allocations: 10.59 MB / 1.018 GB, free: 11.01 MB / 0.7917 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.01482/1.498, allocations: 6.22 MB / 1.024 GB, free: 4.746 MB / 0.7917 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.01876/1.516, allocations: 6.058 MB / 1.03 GB, free: 14.67 MB / 0.8073 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.01143/1.528, allocations: 4.115 MB / 1.034 GB, free: 10.54 MB / 0.8073 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.01723/1.545, allocations: 4.072 MB / 1.038 GB, free: 6.465 MB / 0.8073 GB
Notification: Performance of NFPackage.collectConstants: time 0.004128/1.549, allocations: 376 kB / 1.038 GB, free: 6.098 MB / 0.8073 GB
Notification: Performance of NFScalarize.scalarize: time 0.005478/1.555, allocations: 2.118 MB / 1.04 GB, free: 3.973 MB / 0.8073 GB
Notification: Performance of NFVerifyModel.verify: time 0.00606/1.561, allocations: 0.9453 MB / 1.041 GB, free: 3.027 MB / 0.8073 GB
Notification: Performance of NFConvertDAE.convert: time 0.02923/1.59, allocations: 14.84 MB / 1.055 GB, free: 4.148 MB / 0.823 GB
Notification: Performance of FrontEnd - DAE generated: time 6.002e-06/1.59, allocations: 0 / 1.055 GB, free: 4.148 MB / 0.823 GB
Notification: Performance of FrontEnd: time 2.916e-06/1.59, allocations: 0 / 1.055 GB, free: 4.148 MB / 0.823 GB
Notification: Performance of Transformations before backend: time 0.0006539/1.591, allocations: 0 / 1.055 GB, free: 4.148 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: 1757
 * Number of variables: 1757
Notification: Performance of Generate backend data structure: time 0.03028/1.621, allocations: 7.863 MB / 1.063 GB, free: 12.2 MB / 0.8386 GB
Notification: Performance of prepare preOptimizeDAE: time 5.016e-05/1.621, allocations: 8.031 kB / 1.063 GB, free: 12.19 MB / 0.8386 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02702/1.648, allocations: 2.755 MB / 1.066 GB, free: 9.418 MB / 0.8386 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.02836/1.677, allocations: 7.913 MB / 1.073 GB, free: 1.422 MB / 0.8386 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.003047/1.68, allocations: 1.143 MB / 1.075 GB, free: 184 kB / 0.8386 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.003304/1.683, allocations: 0.6951 MB / 1.075 GB, free: 15.48 MB / 0.8542 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.03715/1.72, allocations: 9.743 MB / 1.085 GB, free: 5.527 MB / 0.8542 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0003186/1.721, allocations: 11.94 kB / 1.085 GB, free: 5.516 MB / 0.8542 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002567/1.723, allocations: 288 kB / 1.085 GB, free: 5.234 MB / 0.8542 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005086/1.724, allocations: 305.3 kB / 1.085 GB, free: 4.934 MB / 0.8542 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03615/1.76, allocations: 9.299 MB / 1.094 GB, free: 11.62 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 0.1/1.86, allocations: 38.42 MB / 1.132 GB, free: 2.957 MB / 0.9011 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.01926/1.88, allocations: 5.75 MB / 1.138 GB, free: 13.23 MB / 0.9167 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.002407/1.882, allocations: 0.9272 MB / 1.138 GB, free: 12.14 MB / 0.9167 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01334/1.895, allocations: 3.615 MB / 1.142 GB, free: 8.492 MB / 0.9167 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.005235/1.901, allocations: 388.1 kB / 1.142 GB, free: 8.109 MB / 0.9167 GB
Notification: Performance of pre-optimization done (n=472): time 1.731e-05/1.901, allocations: 0 / 1.142 GB, free: 8.109 MB / 0.9167 GB
Notification: Performance of matching and sorting (n=472): time 1.181/3.082, allocations: 9.325 MB / 1.151 GB, free: 348.4 MB / 0.9168 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002074/3.082, allocations: 0.5338 MB / 1.152 GB, free: 347.8 MB / 0.9168 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01968/3.102, allocations: 5.889 MB / 1.158 GB, free: 346.1 MB / 0.9168 GB
Notification: Performance of collectPreVariables (initialization): time 0.001521/3.103, allocations: 133.1 kB / 1.158 GB, free: 346 MB / 0.9168 GB
Notification: Performance of collectInitialEqns (initialization): time 0.005993/3.109, allocations: 3.654 MB / 1.161 GB, free: 344.1 MB / 0.9168 GB
Notification: Performance of collectInitialBindings (initialization): time 0.003089/3.112, allocations: 1.635 MB / 1.163 GB, free: 342.8 MB / 0.9168 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0006788/3.113, allocations: 97.88 kB / 1.163 GB, free: 342.7 MB / 0.9168 GB
Notification: Performance of setup shared object (initialization): time 0.0004966/3.114, allocations: 0.4967 MB / 1.164 GB, free: 342.3 MB / 0.9168 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.01102/3.125, allocations: 2.807 MB / 1.166 GB, free: 341.4 MB / 0.9168 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01294/3.138, allocations: 4.05 MB / 1.17 GB, free: 339.1 MB / 0.9168 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01313/3.151, allocations: 3.42 MB / 1.174 GB, free: 337.7 MB / 0.9168 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.105e-05/3.151, allocations: 5.25 kB / 1.174 GB, free: 337.7 MB / 0.9168 GB
Notification: Performance of matching and sorting (n=637) (initialization): time 0.03041/3.181, allocations: 7.705 MB / 1.181 GB, free: 334.8 MB / 0.9168 GB
Notification: Performance of prepare postOptimizeDAE: time 0.002101/3.184, allocations: 9.201 MB / 1.19 GB, free: 324.9 MB / 0.9168 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001315/3.184, allocations: 23.42 kB / 1.19 GB, free: 324.9 MB / 0.9168 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001398/3.185, allocations: 172.2 kB / 1.19 GB, free: 324.9 MB / 0.9168 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01257/3.198, allocations: 1.396 MB / 1.192 GB, free: 324.8 MB / 0.9168 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004671/3.202, allocations: 4.609 MB / 1.196 GB, free: 320.4 MB / 0.9168 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01405/3.217, allocations: 0.8764 MB / 1.197 GB, free: 320.2 MB / 0.9168 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001463/3.218, allocations: 207 kB / 1.197 GB, free: 320.2 MB / 0.9168 GB
Notification: Performance of prepare postOptimizeDAE: time 1.569e-05/3.218, allocations: 3.906 kB / 1.197 GB, free: 320.2 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 <failed> postOpt replaceHomotopyWithSimplified (initialization): time 0.01219/3.23, allocations: 3.315 MB / 1.201 GB, free: 318.8 MB / 0.9168 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated