Running command: translateModel(Buildings.Fluid.HeatExchangers.Validation.HeaterCooler_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Validation.HeaterCooler_u")
Notification: Performance of loadModel(Buildings): time 4.305/4.305, allocations: 458.9 MB / 473.5 MB, free: 11.91 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.45e-05/3.446e-05, allocations: 3.906 kB / 0.5697 GB, free: 9.832 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.223/0.223, allocations: 106.2 MB / 0.6734 GB, free: 2.66 MB / 0.5417 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Validation.HeaterCooler_u): time 0.9496/1.173, allocations: 202.3 MB / 0.871 GB, free: 2.699 MB / 0.6667 GB
Notification: Performance of NFInst.instExpressions: time 0.01979/1.193, allocations: 8.811 MB / 0.8796 GB, free: 2.523 MB / 0.6667 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.003387/1.196, allocations: 86.75 kB / 0.8797 GB, free: 2.523 MB / 0.6667 GB
Notification: Performance of NFTyping.typeComponents: time 0.003858/1.2, allocations: 0.8215 MB / 0.8805 GB, free: 2.52 MB / 0.6667 GB
Notification: Performance of NFTyping.typeBindings: time 0.01087/1.211, allocations: 2.482 MB / 0.8829 GB, free: 1.719 MB / 0.6667 GB
Notification: Performance of NFTyping.typeClassSections: time 0.007317/1.218, allocations: 1.735 MB / 0.8846 GB, free: 0.8984 MB / 0.6667 GB
Notification: Performance of NFFlatten.flatten: time 0.006144/1.224, allocations: 1.977 MB / 0.8865 GB, free: 292 kB / 0.6667 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.002535/1.227, allocations: 0.9927 MB / 0.8875 GB, free: 0 / 0.6667 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.004465/1.231, allocations: 1.333 MB / 0.8888 GB, free: 15.69 MB / 0.6823 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.002028/1.233, allocations: 0.7639 MB / 0.8895 GB, free: 15.52 MB / 0.6823 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.005313/1.239, allocations: 1.556 MB / 0.8911 GB, free: 15.16 MB / 0.6823 GB
Notification: Performance of NFPackage.collectConstants: time 0.0007508/1.24, allocations: 89.19 kB / 0.8911 GB, free: 15.16 MB / 0.6823 GB
Notification: Performance of NFScalarize.scalarize: time 0.0006901/1.24, allocations: 431.8 kB / 0.8916 GB, free: 15.04 MB / 0.6823 GB
Notification: Performance of NFVerifyModel.verify: time 0.0007557/1.241, allocations: 175.7 kB / 0.8917 GB, free: 15.04 MB / 0.6823 GB
Notification: Performance of NFConvertDAE.convert: time 0.004972/1.246, allocations: 2.372 MB / 0.894 GB, free: 13.73 MB / 0.6823 GB
Notification: Performance of FrontEnd - DAE generated: time 4.679e-06/1.246, allocations: 2.531 kB / 0.894 GB, free: 13.73 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 2.605e-06/1.246, allocations: 0 / 0.894 GB, free: 13.73 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 5.104e-05/1.246, allocations: 0 / 0.894 GB, free: 13.73 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: 296
 * Number of variables: 296
Notification: Performance of Generate backend data structure: time 0.004444/1.251, allocations: 1.826 MB / 0.8958 GB, free: 12.47 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 4.169e-05/1.251, allocations: 7.594 kB / 0.8958 GB, free: 12.47 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.005815/1.257, allocations: 0.6432 MB / 0.8965 GB, free: 12.21 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.004029/1.261, allocations: 1.315 MB / 0.8977 GB, free: 11.54 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006539/1.261, allocations: 155.6 kB / 0.8979 GB, free: 11.52 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003011/1.262, allocations: 133.5 kB / 0.898 GB, free: 11.51 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.004267/1.266, allocations: 1.431 MB / 0.8994 GB, free: 11.05 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 4.404e-05/1.266, allocations: 2.531 kB / 0.8994 GB, free: 11.05 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000177/1.266, allocations: 46.41 kB / 0.8995 GB, free: 11.05 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.383e-05/1.266, allocations: 48.61 kB / 0.8995 GB, free: 11.05 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004315/1.271, allocations: 1.207 MB / 0.9007 GB, free: 10.84 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 0.01262/1.283, allocations: 5.709 MB / 0.9063 GB, free: 7.188 MB / 0.6823 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.003171/1.286, allocations: 1.048 MB / 0.9073 GB, free: 6.543 MB / 0.6823 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0006693/1.287, allocations: 148.8 kB / 0.9074 GB, free: 6.426 MB / 0.6823 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001921/1.289, allocations: 0.578 MB / 0.908 GB, free: 6.066 MB / 0.6823 GB
Notification: Performance of pre-optimization done (n=85): time 4.328e-06/1.289, allocations: 0 / 0.908 GB, free: 6.066 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=93): time 0.01347/1.303, allocations: 3.672 MB / 0.9116 GB, free: 3.867 MB / 0.6823 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 8.036e-05/1.303, allocations: 96.94 kB / 0.9117 GB, free: 3.762 MB / 0.6823 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002496/1.305, allocations: 1.162 MB / 0.9128 GB, free: 3.145 MB / 0.6823 GB
Notification: Performance of collectPreVariables (initialization): time 0.0002168/1.305, allocations: 49.47 kB / 0.9129 GB, free: 3.098 MB / 0.6823 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0009108/1.306, allocations: 0.7368 MB / 0.9136 GB, free: 2.445 MB / 0.6823 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0004456/1.307, allocations: 320.3 kB / 0.9139 GB, free: 2.168 MB / 0.6823 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 9.281e-05/1.307, allocations: 19.19 kB / 0.9139 GB, free: 2.152 MB / 0.6823 GB
Notification: Performance of setup shared object (initialization): time 0.0001884/1.307, allocations: 345.4 kB / 0.9142 GB, free: 1.82 MB / 0.6823 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.001705/1.309, allocations: 464.4 kB / 0.9147 GB, free: 1.602 MB / 0.6823 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.001919/1.311, allocations: 0.6687 MB / 0.9153 GB, free: 1.129 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.02651/1.337, allocations: 2.529 MB / 0.9178 GB, free: 15.03 MB / 0.698 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.197e-05/1.337, allocations: 4 kB / 0.9178 GB, free: 15.03 MB / 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