Running command: translateModel(Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.FixedApproachDryBulb,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.FixedApproachDryBulb")
Notification: Performance of loadModel(Buildings): time 3.754/3.754, allocations: 402 MB / 416.6 MB, free: 10.21 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.371e-05/3.404e-05, allocations: 4 kB / 0.501 GB, free: 8.254 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2005/0.2006, allocations: 92.69 MB / 0.5915 GB, free: 11.39 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.FixedApproachDryBulb): time 0.6339/0.8345, allocations: 69.22 MB / 0.6591 GB, free: 2.387 MB / 0.5261 GB
Notification: Performance of NFInst.instExpressions: time 0.2612/1.096, allocations: 136.4 MB / 0.7922 GB, free: 0.7539 MB / 0.6511 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.004222/1.1, allocations: 119.5 kB / 0.7923 GB, free: 0.6367 MB / 0.6511 GB
Notification: Performance of NFTyping.typeComponents: time 0.004832/1.105, allocations: 0.9247 MB / 0.7932 GB, free: 15.71 MB / 0.6667 GB
Notification: Performance of NFTyping.typeBindings: time 0.01134/1.116, allocations: 2.5 MB / 0.7957 GB, free: 13.2 MB / 0.6667 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0121/1.129, allocations: 2.678 MB / 0.7983 GB, free: 10.52 MB / 0.6667 GB
Notification: Performance of NFFlatten.flatten: time 0.009039/1.138, allocations: 2.822 MB / 0.8011 GB, free: 7.691 MB / 0.6667 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.004119/1.142, allocations: 1.565 MB / 0.8026 GB, free: 6.117 MB / 0.6667 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.005074/1.147, allocations: 1.344 MB / 0.8039 GB, free: 4.77 MB / 0.6667 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.003047/1.15, allocations: 1.016 MB / 0.8049 GB, free: 3.75 MB / 0.6667 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.006137/1.156, allocations: 1.467 MB / 0.8063 GB, free: 2.281 MB / 0.6667 GB
Notification: Performance of NFPackage.collectConstants: time 0.001417/1.158, allocations: 115.9 kB / 0.8064 GB, free: 2.168 MB / 0.6667 GB
Notification: Performance of NFScalarize.scalarize: time 0.001086/1.159, allocations: 466.1 kB / 0.8069 GB, free: 1.711 MB / 0.6667 GB
Notification: Performance of NFVerifyModel.verify: time 0.001197/1.16, allocations: 228 kB / 0.8071 GB, free: 1.488 MB / 0.6667 GB
Notification: Performance of NFConvertDAE.convert: time 0.007957/1.168, allocations: 3.221 MB / 0.8102 GB, free: 14.26 MB / 0.6823 GB
Notification: Performance of FrontEnd - DAE generated: time 4.107e-06/1.168, allocations: 0 / 0.8102 GB, free: 14.26 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 4.438e-06/1.168, allocations: 8 kB / 0.8103 GB, free: 14.25 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0001448/1.168, allocations: 0 / 0.8103 GB, free: 14.25 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: 465
 * Number of variables: 465
Notification: Performance of Generate backend data structure: time 0.007157/1.175, allocations: 2.403 MB / 0.8126 GB, free: 11.77 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 5.826e-05/1.175, allocations: 11.97 kB / 0.8126 GB, free: 11.76 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006956/1.182, allocations: 0.703 MB / 0.8133 GB, free: 11.05 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.006218/1.189, allocations: 1.858 MB / 0.8151 GB, free: 9.148 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000835/1.19, allocations: 211.6 kB / 0.8153 GB, free: 8.941 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007114/1.19, allocations: 191.9 kB / 0.8155 GB, free: 8.754 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.007925/1.198, allocations: 2.106 MB / 0.8176 GB, free: 6.555 MB / 0.6823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 6.838e-05/1.198, allocations: 3.938 kB / 0.8176 GB, free: 6.551 MB / 0.6823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000321/1.199, allocations: 83.98 kB / 0.8176 GB, free: 6.469 MB / 0.6823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.781e-05/1.199, allocations: 52 kB / 0.8177 GB, free: 6.418 MB / 0.6823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.009507/1.208, allocations: 2.172 MB / 0.8198 GB, free: 4.242 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 0.02655/1.235, allocations: 8.826 MB / 0.8284 GB, free: 10.99 MB / 0.698 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.009426/1.244, allocations: 1.421 MB / 0.8298 GB, free: 9.566 MB / 0.698 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.01014/1.255, allocations: 2.732 MB / 0.8325 GB, free: 6.621 MB / 0.698 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004986/1.26, allocations: 0.8262 MB / 0.8333 GB, free: 5.77 MB / 0.698 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.001298/1.261, allocations: 134.6 kB / 0.8334 GB, free: 5.637 MB / 0.698 GB
Notification: Performance of pre-optimization done (n=118): time 1.174e-05/1.261, allocations: 4 kB / 0.8334 GB, free: 5.633 MB / 0.698 GB
Notification: Performance of matching and sorting (n=120): time 0.02852/1.29, allocations: 4.149 MB / 0.8375 GB, free: 1.375 MB / 0.698 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001258/1.29, allocations: 141.5 kB / 0.8376 GB, free: 1.207 MB / 0.698 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005042/1.295, allocations: 1.517 MB / 0.8391 GB, free: 15.66 MB / 0.7136 GB
Notification: Performance of collectPreVariables (initialization): time 0.000462/1.295, allocations: 53.7 kB / 0.8391 GB, free: 15.6 MB / 0.7136 GB
Notification: Performance of collectInitialEqns (initialization): time 0.00183/1.297, allocations: 1.018 MB / 0.8401 GB, free: 14.57 MB / 0.7136 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0009683/1.298, allocations: 410.1 kB / 0.8405 GB, free: 14.16 MB / 0.7136 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002171/1.299, allocations: 32 kB / 0.8406 GB, free: 14.13 MB / 0.7136 GB
Notification: Performance of setup shared object (initialization): time 0.0002281/1.299, allocations: 365.9 kB / 0.8409 GB, free: 13.77 MB / 0.7136 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.00309/1.302, allocations: 0.5817 MB / 0.8415 GB, free: 13.18 MB / 0.7136 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.003486/1.305, allocations: 0.9774 MB / 0.8424 GB, free: 12.04 MB / 0.7136 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.003344/1.309, allocations: 0.728 MB / 0.8431 GB, free: 11.3 MB / 0.7136 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.663e-05/1.309, allocations: 4 kB / 0.8431 GB, free: 11.3 MB / 0.7136 GB
Notification: Performance of matching and sorting (n=180) (initialization): time 0.009269/1.318, allocations: 2.014 MB / 0.8451 GB, free: 9.254 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 0.001944/1.32, allocations: 4.166 MB / 0.8492 GB, free: 4.777 MB / 0.7136 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.935e-05/1.32, allocations: 8 kB / 0.8492 GB, free: 4.77 MB / 0.7136 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001473/1.322, allocations: 145.5 kB / 0.8493 GB, free: 4.621 MB / 0.7136 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003421/1.325, allocations: 371.4 kB / 0.8497 GB, free: 4.258 MB / 0.7136 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003896/1.329, allocations: 2.139 MB / 0.8518 GB, free: 1.953 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003497/1.333, allocations: 163.8 kB / 0.8519 GB, free: 1.793 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000448/1.333, allocations: 83.89 kB / 0.852 GB, free: 1.711 MB / 0.7136 GB
Notification: Performance of prepare postOptimizeDAE: time 1.629e-05/1.333, allocations: 4 kB / 0.852 GB, free: 1.707 MB / 0.7136 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.008036/1.341, allocations: 1.789 MB / 0.8538 GB, free: 15.9 MB / 0.7292 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.513e-05/1.341, allocations: 8 kB / 0.8538 GB, free: 15.89 MB / 0.7292 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.00127/1.343, allocations: 146.2 kB / 0.8539 GB, free: 15.74 MB / 0.7292 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00319/1.346, allocations: 363.5 kB / 0.8542 GB, free: 15.39 MB / 0.7292 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003739/1.35, allocations: 2.131 MB / 0.8563 GB, free: 13.09 MB / 0.7292 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00326/1.353, allocations: 167.8 kB / 0.8565 GB, free: 12.93 MB / 0.7292 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004069/1.354, allocations: 67.97 kB / 0.8566 GB, free: 12.86 MB / 0.7292 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 45
 * Number of states: 0 ()
 * Number of discrete variables: 8 ($whenCondition2,$whenCondition1,$PRE.weaDat.conTim1.tStart,weaDat.conTim1.tStart,$PRE.weaDat.conTim.tStart,weaDat.conTim.tStart,$PRE.onOffController.y,onOffController.y)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (173):
 * Single equations (assignments): 168
 * Array equations: 1
 * Algorithm blocks: 2
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {1 2,1 4}
Notification: Performance of prepare postOptimizeDAE: time 0.001755/1.355, allocations: 0.5108 MB / 0.8571 GB, free: 12.34 MB / 0.7292 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007222/1.356, allocations: 205.5 kB / 0.8572 GB, free: 12.14 MB / 0.7292 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.009861/1.366, allocations: 2.004 MB / 0.8592 GB, free: 10.11 MB / 0.7292 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.007393/1.373, allocations: 1.469 MB / 0.8606 GB, free: 8.621 MB / 0.7292 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.394e-05/1.373, allocations: 0 / 0.8606 GB, free: 8.621 MB / 0.7292 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.001863/1.375, allocations: 498 kB / 0.8611 GB, free: 8.113 MB / 0.7292 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005535/1.376, allocations: 27.94 kB / 0.8611 GB, free: 8.086 MB / 0.7292 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003092/1.379, allocations: 171.7 kB / 0.8613 GB, free: 7.918 MB / 0.7292 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003499/1.379, allocations: 93.11 kB / 0.8614 GB, free: 7.828 MB / 0.7292 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: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed!
Notification: Performance of <failed> postOpt createDAEmodeBDAE (simulation): time 0.006689/1.386, allocations: 1.103 MB / 0.8625 GB, free: 6.715 MB / 0.7292 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.