Running command: translateModel(Buildings.Examples.Tutorial.SpaceCooling.System2,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Examples.Tutorial.SpaceCooling.System2")
Notification: Performance of loadModel(Buildings): time 3.71/3.71, allocations: 402 MB / 416.6 MB, free: 10.2 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 2.915e-05/2.927e-05, allocations: 4 kB / 0.5009 GB, free: 8.262 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.202/0.2021, allocations: 92.68 MB / 0.5914 GB, free: 11.4 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Examples.Tutorial.SpaceCooling.System2): time 1.737/1.939, allocations: 341.4 MB / 0.9248 GB, free: 75.45 MB / 0.7448 GB
Notification: Performance of NFInst.instExpressions: time 0.06989/2.009, allocations: 36.42 MB / 0.9604 GB, free: 74.91 MB / 0.7448 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.007749/2.017, allocations: 218.5 kB / 0.9606 GB, free: 74.91 MB / 0.7448 GB
Notification: Performance of NFTyping.typeComponents: time 0.01002/2.027, allocations: 2.189 MB / 0.9628 GB, free: 74.89 MB / 0.7448 GB
Notification: Performance of NFTyping.typeBindings: time 0.02575/2.053, allocations: 6.217 MB / 0.9688 GB, free: 73.67 MB / 0.7448 GB
Notification: Performance of NFTyping.typeClassSections: time 0.01919/2.072, allocations: 4.42 MB / 0.9731 GB, free: 72.31 MB / 0.7448 GB
Notification: Performance of NFFlatten.flatten: time 0.02961/2.102, allocations: 10.42 MB / 0.9833 GB, free: 70.95 MB / 0.7448 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.01354/2.115, allocations: 6.054 MB / 0.9892 GB, free: 68.99 MB / 0.7448 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.01875/2.134, allocations: 5.93 MB / 0.995 GB, free: 68.18 MB / 0.7448 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.012/2.146, allocations: 4.082 MB / 0.999 GB, free: 67.45 MB / 0.7448 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0189/2.165, allocations: 3.901 MB / 1.003 GB, free: 66.43 MB / 0.7448 GB
Notification: Performance of NFPackage.collectConstants: time 0.004445/2.169, allocations: 360 kB / 1.003 GB, free: 66.08 MB / 0.7448 GB
Notification: Performance of NFScalarize.scalarize: time 0.005052/2.175, allocations: 2.07 MB / 1.005 GB, free: 64.8 MB / 0.7448 GB
Notification: Performance of NFVerifyModel.verify: time 0.006009/2.181, allocations: 0.9531 MB / 1.006 GB, free: 63.84 MB / 0.7448 GB
Notification: Performance of NFConvertDAE.convert: time 0.02387/2.204, allocations: 14.16 MB / 1.02 GB, free: 51.77 MB / 0.7448 GB
Notification: Performance of FrontEnd - DAE generated: time 3.807e-06/2.205, allocations: 0 / 1.02 GB, free: 51.77 MB / 0.7448 GB
Notification: Performance of FrontEnd: time 3.296e-06/2.205, allocations: 0 / 1.02 GB, free: 51.77 MB / 0.7448 GB
Notification: Performance of Transformations before backend: time 0.0005313/2.205, allocations: 4 kB / 1.02 GB, free: 51.77 MB / 0.7448 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 1771
 * Number of variables: 1771
Notification: Performance of Generate backend data structure: time 0.02641/2.232, allocations: 7.814 MB / 1.028 GB, free: 44.54 MB / 0.7448 GB
Notification: Performance of prepare preOptimizeDAE: time 5.271e-05/2.232, allocations: 8.031 kB / 1.028 GB, free: 44.53 MB / 0.7448 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02664/2.258, allocations: 2.81 MB / 1.03 GB, free: 41.8 MB / 0.7448 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.02782/2.286, allocations: 8.427 MB / 1.039 GB, free: 36.27 MB / 0.7448 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002664/2.289, allocations: 1.138 MB / 1.04 GB, free: 35.26 MB / 0.7448 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.002999/2.292, allocations: 0.6967 MB / 1.04 GB, free: 34.79 MB / 0.7448 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.03754/2.329, allocations: 10.09 MB / 1.05 GB, free: 27.6 MB / 0.7448 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0003418/2.33, allocations: 13.34 kB / 1.05 GB, free: 27.59 MB / 0.7448 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002521/2.332, allocations: 297.1 kB / 1.05 GB, free: 27.52 MB / 0.7448 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004184/2.333, allocations: 317.9 kB / 1.051 GB, free: 27.22 MB / 0.7448 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03688/2.37, allocations: 9.629 MB / 1.06 GB, free: 20.5 MB / 0.7448 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 0.09038/2.46, allocations: 38.28 MB / 1.098 GB, free: 2.371 MB / 0.7605 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.02406/2.484, allocations: 6.022 MB / 1.103 GB, free: 12.41 MB / 0.7761 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.002978/2.487, allocations: 1.046 MB / 1.104 GB, free: 11.2 MB / 0.7761 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01788/2.505, allocations: 3.903 MB / 1.108 GB, free: 7.25 MB / 0.7761 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.005223/2.511, allocations: 384.2 kB / 1.109 GB, free: 6.871 MB / 0.7761 GB
Notification: Performance of pre-optimization done (n=475): time 2.124e-05/2.511, allocations: 3.938 kB / 1.109 GB, free: 6.867 MB / 0.7761 GB
Notification: Performance of matching and sorting (n=477): time 0.09962/2.61, allocations: 22.03 MB / 1.13 GB, free: 0.6211 MB / 0.7917 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0004035/2.611, allocations: 0.638 MB / 1.131 GB, free: 15.84 MB / 0.8073 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01515/2.626, allocations: 5.121 MB / 1.136 GB, free: 10.74 MB / 0.8073 GB
Notification: Performance of collectPreVariables (initialization): time 0.00142/2.627, allocations: 125.7 kB / 1.136 GB, free: 10.61 MB / 0.8073 GB
Notification: Performance of collectInitialEqns (initialization): time 0.006388/2.634, allocations: 3.678 MB / 1.14 GB, free: 6.91 MB / 0.8073 GB
Notification: Performance of collectInitialBindings (initialization): time 0.004133/2.638, allocations: 1.647 MB / 1.141 GB, free: 5.277 MB / 0.8073 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001355/2.639, allocations: 96 kB / 1.141 GB, free: 5.184 MB / 0.8073 GB
Notification: Performance of setup shared object (initialization): time 0.0008522/2.64, allocations: 0.4928 MB / 1.142 GB, free: 4.684 MB / 0.8073 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.01731/2.658, allocations: 2.734 MB / 1.144 GB, free: 1.941 MB / 0.8073 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01399/2.672, allocations: 3.961 MB / 1.148 GB, free: 13.5 MB / 0.823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01748/2.689, allocations: 3.397 MB / 1.152 GB, free: 10.06 MB / 0.823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.167e-05/2.689, allocations: 8 kB / 1.152 GB, free: 10.05 MB / 0.823 GB
Notification: Performance of matching and sorting (n=623) (initialization): time 0.04342/2.733, allocations: 7.806 MB / 1.159 GB, free: 2.258 MB / 0.823 GB
Notification: Performance of prepare postOptimizeDAE: time 0.005674/2.738, allocations: 10.89 MB / 1.17 GB, free: 6.305 MB / 0.8386 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001442/2.739, allocations: 26.62 kB / 1.17 GB, free: 6.281 MB / 0.8386 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.002122/2.741, allocations: 193.6 kB / 1.17 GB, free: 6.086 MB / 0.8386 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0375/2.778, allocations: 2.32 MB / 1.172 GB, free: 3.828 MB / 0.8386 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01458/2.793, allocations: 8.635 MB / 1.181 GB, free: 10.84 MB / 0.8542 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01257/2.806, allocations: 0.7529 MB / 1.181 GB, free: 10.08 MB / 0.8542 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001545/2.807, allocations: 258.3 kB / 1.182 GB, free: 9.832 MB / 0.8542 GB
Notification: Performance of prepare postOptimizeDAE: time 1.558e-05/2.807, allocations: 4 kB / 1.182 GB, free: 9.828 MB / 0.8542 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 0.01298/2.82, allocations: 3.246 MB / 1.185 GB, free: 6.578 MB / 0.8542 GB
Error: post-optimization module replaceHomotopyWithSimplified (initialization) failed.
Error: No system for the symbolic initialization was generated