Running command: translateModel(Buildings.Fluid.HeatExchangers.Examples.AirHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_7.0.0_Buildings.Fluid.HeatExchangers.Examples.AirHeater_u")
Notification: Performance of loadModel(Buildings): time 4.477/4.477, allocations: 458.9 MB / 473.4 MB, free: 11.89 MB / 378.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.774e-05/3.776e-05, allocations: 9.453 kB / 0.5697 GB, free: 9.82 MB / 458.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2372/0.2372, allocations: 106.2 MB / 0.6734 GB, free: 2.621 MB / 0.5417 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.AirHeater_u): time 0.99/1.227, allocations: 205.9 MB / 0.8745 GB, free: 2.707 MB / 0.6667 GB
Notification: Performance of NFInst.instExpressions: time 0.03891/1.266, allocations: 17.13 MB / 0.8912 GB, free: 356 kB / 0.6667 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.004716/1.271, allocations: 103.8 kB / 0.8913 GB, free: 356 kB / 0.6667 GB
Notification: Performance of NFTyping.typeComponents: time 0.00637/1.277, allocations: 1.218 MB / 0.8925 GB, free: 15.86 MB / 0.6823 GB
Notification: Performance of NFTyping.typeBindings: time 0.01618/1.294, allocations: 3.379 MB / 0.8958 GB, free: 13.41 MB / 0.6823 GB
Notification: Performance of NFTyping.typeClassSections: time 0.01456/1.308, allocations: 3.025 MB / 0.8988 GB, free: 11.32 MB / 0.6823 GB
Notification: Performance of NFFlatten.flatten: time 0.00893/1.317, allocations: 2.734 MB / 0.9014 GB, free: 9.508 MB / 0.6823 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.003383/1.321, allocations: 1.336 MB / 0.9027 GB, free: 8.719 MB / 0.6823 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.006381/1.327, allocations: 1.791 MB / 0.9045 GB, free: 7.828 MB / 0.6823 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.003339/1.331, allocations: 1.097 MB / 0.9056 GB, free: 7.391 MB / 0.6823 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.008112/1.339, allocations: 2.052 MB / 0.9076 GB, free: 6.5 MB / 0.6823 GB
Notification: Performance of NFPackage.collectConstants: time 0.001577/1.34, allocations: 137.2 kB / 0.9077 GB, free: 6.496 MB / 0.6823 GB
Notification: Performance of NFScalarize.scalarize: time 0.001704/1.342, allocations: 0.6546 MB / 0.9083 GB, free: 6.172 MB / 0.6823 GB
Notification: Performance of NFVerifyModel.verify: time 0.001567/1.344, allocations: 247.9 kB / 0.9086 GB, free: 6.172 MB / 0.6823 GB
Notification: Performance of NFConvertDAE.convert: time 0.008227/1.352, allocations: 3.404 MB / 0.9119 GB, free: 3.918 MB / 0.6823 GB
Notification: Performance of FrontEnd - DAE generated: time 4.359e-06/1.352, allocations: 0 / 0.9119 GB, free: 3.918 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 3.246e-06/1.352, allocations: 0 / 0.9119 GB, free: 3.918 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0001449/1.352, allocations: 0 / 0.9119 GB, free: 3.918 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: 382
 * Number of variables: 382
Notification: Performance of Generate backend data structure: time 0.006922/1.359, allocations: 2.272 MB / 0.9141 GB, free: 2.262 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 4.581e-05/1.359, allocations: 8.719 kB / 0.9141 GB, free: 2.262 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008186/1.367, allocations: 0.8058 MB / 0.9149 GB, free: 1.902 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006713/1.374, allocations: 1.785 MB / 0.9167 GB, free: 0.6328 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007958/1.375, allocations: 185.8 kB / 0.9168 GB, free: 0.5586 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.000666/1.376, allocations: 161.4 kB / 0.917 GB, free: 0.5078 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.006565/1.382, allocations: 1.861 MB / 0.9188 GB, free: 15.36 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 5.808e-05/1.382, allocations: 6.625 kB / 0.9188 GB, free: 15.36 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002724/1.383, allocations: 64.75 kB / 0.9189 GB, free: 15.31 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.528e-05/1.383, allocations: 55.48 kB / 0.9189 GB, free: 15.3 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.006821/1.39, allocations: 1.61 MB / 0.9205 GB, free: 14.01 MB / 0.698 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 0.02086/1.411, allocations: 8.398 MB / 0.9287 GB, free: 5.066 MB / 0.698 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.005021/1.416, allocations: 1.801 MB / 0.9305 GB, free: 3.125 MB / 0.698 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.0007729/1.416, allocations: 147 kB / 0.9306 GB, free: 2.965 MB / 0.698 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002816/1.419, allocations: 0.7024 MB / 0.9313 GB, free: 2.25 MB / 0.698 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.001416/1.421, allocations: 119.1 kB / 0.9314 GB, free: 2.133 MB / 0.698 GB
Notification: Performance of pre-optimization done (n=101): time 5.942e-06/1.421, allocations: 0 / 0.9314 GB, free: 2.133 MB / 0.698 GB
Notification: Performance of matching and sorting (n=104): time 0.01703/1.438, allocations: 3.728 MB / 0.935 GB, free: 14.33 MB / 0.7136 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001122/1.438, allocations: 141.5 kB / 0.9352 GB, free: 14.16 MB / 0.7136 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003852/1.442, allocations: 1.424 MB / 0.9366 GB, free: 12.7 MB / 0.7136 GB
Notification: Performance of collectPreVariables (initialization): time 0.0003809/1.442, allocations: 53.7 kB / 0.9366 GB, free: 12.64 MB / 0.7136 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001436/1.444, allocations: 0.9716 MB / 0.9376 GB, free: 11.66 MB / 0.7136 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0007055/1.444, allocations: 362.8 kB / 0.9379 GB, free: 11.3 MB / 0.7136 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001263/1.445, allocations: 24 kB / 0.9379 GB, free: 11.28 MB / 0.7136 GB
Notification: Performance of setup shared object (initialization): time 0.0001907/1.445, allocations: 357.9 kB / 0.9383 GB, free: 10.92 MB / 0.7136 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.002409/1.447, allocations: 0.5595 MB / 0.9388 GB, free: 10.36 MB / 0.7136 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.002919/1.45, allocations: 0.9172 MB / 0.9397 GB, free: 9.301 MB / 0.7136 GB
Notification: It was not possible to check the given initialization system for consistency symbolically, because the relevant equations are part of an algebraic loop. This is not supported yet.
Notification: Performance of analyzeInitialSystem (initialization): time 0.0227/1.473, allocations: 2.696 MB / 0.9424 GB, free: 6.602 MB / 0.7136 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.18e-05/1.473, allocations: 4 kB / 0.9424 GB, free: 6.598 MB / 0.7136 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