Running command: translateModel(Buildings.Fluid.HeatExchangers.Validation.HeaterCooler_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Fluid.HeatExchangers.Validation.HeaterCooler_u")
Notification: Performance of loadModel(Buildings): time 3.829/3.829, allocations: 402 MB / 416.6 MB, free: 10.2 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.335e-05/3.356e-05, allocations: 4 kB / 0.5009 GB, free: 8.258 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2238/0.2238, allocations: 92.7 MB / 0.5915 GB, free: 11.39 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Validation.HeaterCooler_u): time 0.8669/1.091, allocations: 201.6 MB / 0.7883 GB, free: 5.117 MB / 0.6511 GB
Notification: Performance of NFInst.instExpressions: time 0.02112/1.112, allocations: 8.656 MB / 0.7968 GB, free: 12.44 MB / 0.6667 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.002517/1.115, allocations: 87.62 kB / 0.7969 GB, free: 12.36 MB / 0.6667 GB
Notification: Performance of NFTyping.typeComponents: time 0.003312/1.118, allocations: 0.82 MB / 0.7977 GB, free: 11.53 MB / 0.6667 GB
Notification: Performance of NFTyping.typeBindings: time 0.009475/1.127, allocations: 2.368 MB / 0.8 GB, free: 9.156 MB / 0.6667 GB
Notification: Performance of NFTyping.typeClassSections: time 0.007107/1.135, allocations: 1.599 MB / 0.8015 GB, free: 7.555 MB / 0.6667 GB
Notification: Performance of NFFlatten.flatten: time 0.006546/1.141, allocations: 2.098 MB / 0.8036 GB, free: 5.453 MB / 0.6667 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.002473/1.144, allocations: 1.02 MB / 0.8046 GB, free: 4.43 MB / 0.6667 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.004538/1.148, allocations: 1.332 MB / 0.8059 GB, free: 3.094 MB / 0.6667 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.002396/1.151, allocations: 0.8293 MB / 0.8067 GB, free: 2.262 MB / 0.6667 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.005567/1.156, allocations: 1.412 MB / 0.8081 GB, free: 0.8477 MB / 0.6667 GB
Notification: Performance of NFPackage.collectConstants: time 0.001005/1.157, allocations: 92 kB / 0.8082 GB, free: 0.7578 MB / 0.6667 GB
Notification: Performance of NFScalarize.scalarize: time 0.0009442/1.158, allocations: 494.4 kB / 0.8086 GB, free: 280 kB / 0.6667 GB
Notification: Performance of NFVerifyModel.verify: time 0.00092/1.159, allocations: 200 kB / 0.8088 GB, free: 80 kB / 0.6667 GB
Notification: Performance of NFConvertDAE.convert: time 0.006033/1.165, allocations: 2.498 MB / 0.8113 GB, free: 13.57 MB / 0.6823 GB
Notification: Performance of FrontEnd - DAE generated: time 4.368e-06/1.165, allocations: 3.938 kB / 0.8113 GB, free: 13.57 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 3.226e-06/1.165, allocations: 0 / 0.8113 GB, free: 13.57 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 8.602e-05/1.165, allocations: 0 / 0.8113 GB, free: 13.57 MB / 0.6823 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 329
 * Number of variables: 329
Notification: Performance of Generate backend data structure: time 0.00554/1.171, allocations: 1.891 MB / 0.8131 GB, free: 11.61 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 5.771e-05/1.171, allocations: 12.02 kB / 0.8131 GB, free: 11.59 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006171/1.177, allocations: 0.6376 MB / 0.8137 GB, free: 10.95 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004755/1.182, allocations: 1.357 MB / 0.8151 GB, free: 9.543 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007448/1.183, allocations: 170.4 kB / 0.8152 GB, free: 9.375 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0004403/1.183, allocations: 136 kB / 0.8154 GB, free: 9.242 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.006305/1.19, allocations: 1.648 MB / 0.817 GB, free: 7.523 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 5.375e-05/1.19, allocations: 0 / 0.817 GB, free: 7.523 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002356/1.19, allocations: 56 kB / 0.817 GB, free: 7.469 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.698e-05/1.19, allocations: 46.47 kB / 0.8171 GB, free: 7.422 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006444/1.197, allocations: 1.391 MB / 0.8184 GB, free: 6.023 MB / 0.6823 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 0.01575/1.212, allocations: 6.336 MB / 0.8246 GB, free: 15.32 MB / 0.698 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.004419/1.217, allocations: 1.085 MB / 0.8257 GB, free: 14.19 MB / 0.698 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0006697/1.218, allocations: 141.7 kB / 0.8258 GB, free: 14.04 MB / 0.698 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.003277/1.221, allocations: 0.7794 MB / 0.8266 GB, free: 13.2 MB / 0.698 GB
Notification: Performance of pre-optimization done (n=86): time 5.63e-06/1.221, allocations: 0 / 0.8266 GB, free: 13.2 MB / 0.698 GB
Notification: Performance of matching and sorting (n=94): time 0.02156/1.243, allocations: 5.286 MB / 0.8317 GB, free: 7.77 MB / 0.698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002541/1.243, allocations: 427.9 kB / 0.8321 GB, free: 7.254 MB / 0.698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003017/1.246, allocations: 1.271 MB / 0.8334 GB, free: 5.98 MB / 0.698 GB
Notification: Performance of collectPreVariables (initialization): time 0.0002963/1.246, allocations: 49.83 kB / 0.8334 GB, free: 5.926 MB / 0.698 GB
Notification: Performance of collectInitialEqns (initialization): time 0.00108/1.247, allocations: 0.8029 MB / 0.8342 GB, free: 5.113 MB / 0.698 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0005761/1.248, allocations: 323.3 kB / 0.8345 GB, free: 4.793 MB / 0.698 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.000109/1.248, allocations: 20 kB / 0.8345 GB, free: 4.773 MB / 0.698 GB
Notification: Performance of setup shared object (initialization): time 0.0001681/1.248, allocations: 345.9 kB / 0.8349 GB, free: 4.43 MB / 0.698 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.002102/1.25, allocations: 0.5023 MB / 0.8354 GB, free: 3.93 MB / 0.698 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.002483/1.253, allocations: 0.813 MB / 0.8362 GB, free: 3.004 MB / 0.698 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.02213/1.275, allocations: 2.654 MB / 0.8387 GB, free: 328 kB / 0.698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.354e-06/1.275, allocations: 0 / 0.8387 GB, free: 328 kB / 0.698 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.
Error: No system for the symbolic initialization was generated