Running command: translateModel(Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.YorkCalc,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.YorkCalc")
Notification: Performance of loadModel(Buildings): time 3.87/3.87, allocations: 402 MB / 416.6 MB, free: 10.12 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.07e-05/4.072e-05, allocations: 8 kB / 0.501 GB, free: 8.23 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2019/0.202, allocations: 92.67 MB / 0.5915 GB, free: 11.38 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.CoolingTowers.Examples.YorkCalc): time 0.6065/0.8085, allocations: 70.29 MB / 0.6601 GB, free: 1.562 MB / 0.5261 GB
Notification: Performance of NFInst.instExpressions: time 0.2412/1.05, allocations: 139.4 MB / 0.7962 GB, free: 12.64 MB / 0.6667 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.004701/1.055, allocations: 139.4 kB / 0.7964 GB, free: 12.51 MB / 0.6667 GB
Notification: Performance of NFTyping.typeComponents: time 0.005014/1.06, allocations: 0.9906 MB / 0.7973 GB, free: 11.51 MB / 0.6667 GB
Notification: Performance of NFTyping.typeBindings: time 0.01199/1.072, allocations: 2.609 MB / 0.7999 GB, free: 8.895 MB / 0.6667 GB
Notification: Performance of NFTyping.typeClassSections: time 0.013/1.085, allocations: 3.053 MB / 0.8029 GB, free: 5.84 MB / 0.6667 GB
Notification: Performance of NFFlatten.flatten: time 0.00957/1.094, allocations: 3.115 MB / 0.8059 GB, free: 2.719 MB / 0.6667 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.003957/1.098, allocations: 1.763 MB / 0.8076 GB, free: 0.9414 MB / 0.6667 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.004705/1.103, allocations: 1.511 MB / 0.8091 GB, free: 15.43 MB / 0.6823 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.003382/1.106, allocations: 1.187 MB / 0.8102 GB, free: 14.23 MB / 0.6823 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.007169/1.114, allocations: 1.779 MB / 0.812 GB, free: 12.45 MB / 0.6823 GB
Notification: Performance of NFPackage.collectConstants: time 0.001503/1.115, allocations: 136 kB / 0.8121 GB, free: 12.32 MB / 0.6823 GB
Notification: Performance of NFScalarize.scalarize: time 0.001176/1.116, allocations: 0.5291 MB / 0.8126 GB, free: 11.79 MB / 0.6823 GB
Notification: Performance of NFVerifyModel.verify: time 0.001228/1.118, allocations: 256 kB / 0.8129 GB, free: 11.54 MB / 0.6823 GB
Notification: Performance of NFConvertDAE.convert: time 0.009044/1.127, allocations: 3.673 MB / 0.8165 GB, free: 7.859 MB / 0.6823 GB
Notification: Performance of FrontEnd - DAE generated: time 4.458e-06/1.127, allocations: 4 kB / 0.8165 GB, free: 7.855 MB / 0.6823 GB
Notification: Performance of FrontEnd: time 3.056e-06/1.127, allocations: 0 / 0.8165 GB, free: 7.855 MB / 0.6823 GB
Notification: Performance of Transformations before backend: time 0.0001306/1.127, allocations: 0 / 0.8165 GB, free: 7.855 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: 531
 * Number of variables: 531
Notification: Performance of Generate backend data structure: time 0.008546/1.135, allocations: 2.747 MB / 0.8192 GB, free: 5.023 MB / 0.6823 GB
Notification: Performance of prepare preOptimizeDAE: time 5.341e-05/1.136, allocations: 8.031 kB / 0.8192 GB, free: 5.016 MB / 0.6823 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008029/1.144, allocations: 0.8312 MB / 0.82 GB, free: 4.18 MB / 0.6823 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00711/1.151, allocations: 2.116 MB / 0.822 GB, free: 1.988 MB / 0.6823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0007877/1.152, allocations: 228.4 kB / 0.8223 GB, free: 1.762 MB / 0.6823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006806/1.152, allocations: 215.9 kB / 0.8225 GB, free: 1.551 MB / 0.6823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.008456/1.161, allocations: 2.513 MB / 0.8249 GB, free: 14.86 MB / 0.698 GB
Notification: Performance of preOpt findStateOrder (simulation): time 7.668e-05/1.161, allocations: 11.89 kB / 0.8249 GB, free: 14.85 MB / 0.698 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003487/1.161, allocations: 92 kB / 0.825 GB, free: 14.76 MB / 0.698 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.835e-05/1.161, allocations: 55.98 kB / 0.8251 GB, free: 14.7 MB / 0.698 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01001/1.171, allocations: 2.497 MB / 0.8275 GB, free: 12.2 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 0.02635/1.198, allocations: 10.86 MB / 0.8381 GB, free: 0.8789 MB / 0.698 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.008656/1.206, allocations: 1.828 MB / 0.8399 GB, free: 15.03 MB / 0.7136 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.01127/1.218, allocations: 4.417 MB / 0.8442 GB, free: 10.12 MB / 0.7136 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.004567/1.222, allocations: 1.038 MB / 0.8452 GB, free: 9.055 MB / 0.7136 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.001214/1.224, allocations: 154.3 kB / 0.8454 GB, free: 8.902 MB / 0.7136 GB
Notification: Performance of pre-optimization done (n=148): time 6.022e-06/1.224, allocations: 0 / 0.8454 GB, free: 8.902 MB / 0.7136 GB
Notification: Performance of matching and sorting (n=152): time 0.02746/1.251, allocations: 5.211 MB / 0.8505 GB, free: 3.582 MB / 0.7136 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001098/1.251, allocations: 145.8 kB / 0.8506 GB, free: 3.41 MB / 0.7136 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004412/1.256, allocations: 1.744 MB / 0.8523 GB, free: 1.648 MB / 0.7136 GB
Notification: Performance of collectPreVariables (initialization): time 0.0005207/1.256, allocations: 57.7 kB / 0.8524 GB, free: 1.586 MB / 0.7136 GB
Notification: Performance of collectInitialEqns (initialization): time 0.001709/1.258, allocations: 1.184 MB / 0.8535 GB, free: 396 kB / 0.7136 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0009866/1.259, allocations: 0.5046 MB / 0.854 GB, free: 15.87 MB / 0.7292 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001911/1.259, allocations: 40 kB / 0.854 GB, free: 15.83 MB / 0.7292 GB
Notification: Performance of setup shared object (initialization): time 0.0002284/1.26, allocations: 373.9 kB / 0.8544 GB, free: 15.46 MB / 0.7292 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.003631/1.263, allocations: 0.7574 MB / 0.8551 GB, free: 14.7 MB / 0.7292 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.004312/1.268, allocations: 1.322 MB / 0.8564 GB, free: 13.17 MB / 0.7292 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.004015/1.272, allocations: 0.9501 MB / 0.8574 GB, free: 12.21 MB / 0.7292 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.37e-05/1.272, allocations: 4 kB / 0.8574 GB, free: 12.21 MB / 0.7292 GB
Notification: Performance of matching and sorting (n=236) (initialization): time 0.01145/1.283, allocations: 2.592 MB / 0.8599 GB, free: 9.594 MB / 0.7292 GB
Notification: Performance of prepare postOptimizeDAE: time 0.003481/1.287, allocations: 5.519 MB / 0.8653 GB, free: 3.512 MB / 0.7292 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.584e-05/1.287, allocations: 16 kB / 0.8653 GB, free: 3.496 MB / 0.7292 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.002881/1.29, allocations: 177.5 kB / 0.8655 GB, free: 3.316 MB / 0.7292 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.006176/1.296, allocations: 479.2 kB / 0.8659 GB, free: 2.848 MB / 0.7292 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009486/1.305, allocations: 3.604 MB / 0.8694 GB, free: 14.94 MB / 0.7448 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006175/1.312, allocations: 199.7 kB / 0.8696 GB, free: 14.75 MB / 0.7448 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007745/1.313, allocations: 111.9 kB / 0.8697 GB, free: 14.64 MB / 0.7448 GB
Notification: Performance of prepare postOptimizeDAE: time 2.19e-05/1.313, allocations: 6.812 kB / 0.8697 GB, free: 14.63 MB / 0.7448 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.01477/1.327, allocations: 2.313 MB / 0.872 GB, free: 12.3 MB / 0.7448 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.205e-05/1.327, allocations: 15.94 kB / 0.872 GB, free: 12.29 MB / 0.7448 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.002503/1.33, allocations: 177.8 kB / 0.8722 GB, free: 12.11 MB / 0.7448 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005242/1.335, allocations: 463.3 kB / 0.8726 GB, free: 11.65 MB / 0.7448 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008237/1.344, allocations: 3.612 MB / 0.8762 GB, free: 7.742 MB / 0.7448 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005206/1.349, allocations: 195.6 kB / 0.8763 GB, free: 7.551 MB / 0.7448 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000631/1.349, allocations: 104 kB / 0.8764 GB, free: 7.449 MB / 0.7448 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 59
 * Number of states: 0 ()
 * Number of discrete variables: 9 ($whenCondition2,$whenCondition1,$PRE.weaDat.conTim1.tStart,weaDat.conTim1.tStart,$PRE.weaDat.conTim.tStart,weaDat.conTim.tStart,$PRE.onOffController.y,onOffController.y,conFan.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (227):
 * Single equations (assignments): 220
 * Array equations: 2
 * Algorithm blocks: 2
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 1
 * Torn equation systems: 2
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 1 {1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 2 {1 2,1 2}
Notification: Performance of prepare postOptimizeDAE: time 0.002491/1.352, allocations: 0.5538 MB / 0.877 GB, free: 6.887 MB / 0.7448 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009772/1.353, allocations: 249 kB / 0.8772 GB, free: 6.641 MB / 0.7448 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01566/1.369, allocations: 2.591 MB / 0.8798 GB, free: 4.027 MB / 0.7448 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.009504/1.378, allocations: 1.92 MB / 0.8816 GB, free: 2.082 MB / 0.7448 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.395e-05/1.378, allocations: 0 / 0.8816 GB, free: 2.082 MB / 0.7448 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002083/1.38, allocations: 0.5599 MB / 0.8822 GB, free: 1.5 MB / 0.7448 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007792/1.381, allocations: 35.95 kB / 0.8822 GB, free: 1.465 MB / 0.7448 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003682/1.385, allocations: 183.7 kB / 0.8824 GB, free: 1.285 MB / 0.7448 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0004905/1.385, allocations: 121.8 kB / 0.8825 GB, free: 1.164 MB / 0.7448 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 0.5284/1.914, allocations: 1.398 MB / 0.8839 GB, free: 255.5 MB / 0.7448 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.