Running command: translateModel(Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume")
Notification: Performance of loadModel(Buildings): time 3.652/3.652, allocations: 402 MB / 416.6 MB, free: 10.13 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.059e-05/3.063e-05, allocations: 7.984 kB / 0.5009 GB, free: 8.254 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1935/0.1935, allocations: 92.68 MB / 0.5915 GB, free: 11.39 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Airflow.Multizone.Examples.ChimneyShaftNoVolume): time 0.7245/0.9181, allocations: 136.5 MB / 0.7248 GB, free: 5.965 MB / 0.5886 GB
Notification: Performance of NFInst.instExpressions: time 0.01473/0.9329, allocations: 6.592 MB / 0.7312 GB, free: 15.36 MB / 0.6042 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001448/0.9344, allocations: 51.75 kB / 0.7312 GB, free: 15.31 MB / 0.6042 GB
Notification: Performance of NFTyping.typeComponents: time 0.001981/0.9364, allocations: 0.552 MB / 0.7318 GB, free: 14.76 MB / 0.6042 GB
Notification: Performance of NFTyping.typeBindings: time 0.004507/0.9409, allocations: 1.234 MB / 0.733 GB, free: 13.52 MB / 0.6042 GB
Notification: Performance of NFTyping.typeClassSections: time 0.004103/0.9451, allocations: 1.049 MB / 0.734 GB, free: 12.47 MB / 0.6042 GB
Notification: Performance of NFFlatten.flatten: time 0.00341/0.9485, allocations: 1.343 MB / 0.7353 GB, free: 11.12 MB / 0.6042 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.001234/0.9497, allocations: 0.6294 MB / 0.7359 GB, free: 10.49 MB / 0.6042 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001766/0.9515, allocations: 0.7949 MB / 0.7367 GB, free: 9.695 MB / 0.6042 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001486/0.953, allocations: 0.662 MB / 0.7374 GB, free: 9.031 MB / 0.6042 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.003066/0.9561, allocations: 0.7764 MB / 0.7381 GB, free: 8.254 MB / 0.6042 GB
Notification: Performance of NFPackage.collectConstants: time 0.0003293/0.9565, allocations: 56 kB / 0.7382 GB, free: 8.199 MB / 0.6042 GB
Notification: Performance of NFScalarize.scalarize: time 0.0003671/0.9568, allocations: 231.1 kB / 0.7384 GB, free: 7.973 MB / 0.6042 GB
Notification: Performance of NFVerifyModel.verify: time 0.00043/0.9573, allocations: 124 kB / 0.7385 GB, free: 7.852 MB / 0.6042 GB
Notification: Performance of NFConvertDAE.convert: time 0.002482/0.9598, allocations: 1.313 MB / 0.7398 GB, free: 6.535 MB / 0.6042 GB
Notification: Performance of FrontEnd - DAE generated: time 2.886e-06/0.9598, allocations: 0 / 0.7398 GB, free: 6.535 MB / 0.6042 GB
Notification: Performance of FrontEnd: time 2.424e-06/0.9598, allocations: 0 / 0.7398 GB, free: 6.535 MB / 0.6042 GB
Notification: Performance of Transformations before backend: time 2.217e-05/0.9599, allocations: 4 kB / 0.7398 GB, free: 6.531 MB / 0.6042 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 214
 * Number of variables: 214
Notification: Performance of Generate backend data structure: time 0.003/0.9629, allocations: 1.292 MB / 0.7411 GB, free: 5.176 MB / 0.6042 GB
Notification: Performance of prepare preOptimizeDAE: time 4.737e-05/0.9629, allocations: 8.031 kB / 0.7411 GB, free: 5.168 MB / 0.6042 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005732/0.9635, allocations: 154.3 kB / 0.7412 GB, free: 5.016 MB / 0.6042 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001961/0.9655, allocations: 0.8089 MB / 0.742 GB, free: 4.164 MB / 0.6042 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.642e-05/0.9656, allocations: 66 kB / 0.7421 GB, free: 4.098 MB / 0.6042 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002029/0.9658, allocations: 88 kB / 0.7422 GB, free: 4.012 MB / 0.6042 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.002354/0.9682, allocations: 0.9599 MB / 0.7431 GB, free: 3.004 MB / 0.6042 GB
Notification: Performance of preOpt findStateOrder (simulation): time 3.87e-05/0.9682, allocations: 4 kB / 0.7431 GB, free: 3 MB / 0.6042 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001319/0.9684, allocations: 39.95 kB / 0.7431 GB, free: 2.961 MB / 0.6042 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.737e-05/0.9684, allocations: 20 kB / 0.7432 GB, free: 2.941 MB / 0.6042 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002098/0.9705, allocations: 0.726 MB / 0.7439 GB, free: 2.215 MB / 0.6042 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 0.008511/0.979, allocations: 4.367 MB / 0.7481 GB, free: 13.56 MB / 0.6198 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.002872/0.9819, allocations: 0.7414 MB / 0.7489 GB, free: 12.79 MB / 0.6198 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.001088/0.9831, allocations: 0.9979 MB / 0.7498 GB, free: 11.57 MB / 0.6198 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001092/0.9842, allocations: 422.3 kB / 0.7502 GB, free: 11.13 MB / 0.6198 GB
Notification: Performance of pre-optimization done (n=67): time 3.707e-06/0.9842, allocations: 0 / 0.7502 GB, free: 11.13 MB / 0.6198 GB
Notification: Performance of matching and sorting (n=67): time 0.004083/0.9883, allocations: 1.182 MB / 0.7514 GB, free: 9.902 MB / 0.6198 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001176/0.9884, allocations: 226.4 kB / 0.7516 GB, free: 9.633 MB / 0.6198 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001496/0.9899, allocations: 0.7681 MB / 0.7524 GB, free: 8.844 MB / 0.6198 GB
Notification: Performance of collectPreVariables (initialization): time 8.582e-05/0.99, allocations: 41.7 kB / 0.7524 GB, free: 8.797 MB / 0.6198 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0005285/0.9906, allocations: 495.7 kB / 0.7529 GB, free: 8.305 MB / 0.6198 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0002679/0.9908, allocations: 240.6 kB / 0.7531 GB, free: 8.066 MB / 0.6198 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 5.735e-05/0.9909, allocations: 16 kB / 0.7531 GB, free: 8.051 MB / 0.6198 GB
Notification: Performance of setup shared object (initialization): time 0.000139/0.9911, allocations: 330 kB / 0.7534 GB, free: 7.723 MB / 0.6198 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007637/0.9918, allocations: 241.9 kB / 0.7537 GB, free: 7.488 MB / 0.6198 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009947/0.9929, allocations: 448.7 kB / 0.7541 GB, free: 6.969 MB / 0.6198 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0009351/0.9938, allocations: 324.7 kB / 0.7544 GB, free: 6.645 MB / 0.6198 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.051e-06/0.9938, allocations: 0 / 0.7544 GB, free: 6.645 MB / 0.6198 GB
Notification: Performance of matching and sorting (n=96) (initialization): time 0.002477/0.9963, allocations: 0.8809 MB / 0.7553 GB, free: 5.754 MB / 0.6198 GB
Notification: Performance of prepare postOptimizeDAE: time 0.000778/0.9971, allocations: 1.959 MB / 0.7572 GB, free: 3.633 MB / 0.6198 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.526e-05/0.9971, allocations: 4 kB / 0.7572 GB, free: 3.629 MB / 0.6198 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001053/0.9982, allocations: 116.8 kB / 0.7573 GB, free: 3.512 MB / 0.6198 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00111/0.9993, allocations: 155.8 kB / 0.7574 GB, free: 3.359 MB / 0.6198 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0008677/1, allocations: 0.6654 MB / 0.7581 GB, free: 2.668 MB / 0.6198 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001373/1.002, allocations: 127.1 kB / 0.7582 GB, free: 2.543 MB / 0.6198 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.000141/1.002, allocations: 39.98 kB / 0.7582 GB, free: 2.504 MB / 0.6198 GB
Notification: Performance of prepare postOptimizeDAE: time 1.103e-05/1.002, allocations: 8 kB / 0.7582 GB, free: 2.496 MB / 0.6198 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002125/1.004, allocations: 0.7556 MB / 0.759 GB, free: 1.734 MB / 0.6198 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.075e-05/1.004, allocations: 11.88 kB / 0.759 GB, free: 1.723 MB / 0.6198 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.000867/1.005, allocations: 112.8 kB / 0.7591 GB, free: 1.609 MB / 0.6198 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001049/1.006, allocations: 139.8 kB / 0.7592 GB, free: 1.473 MB / 0.6198 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0007773/1.007, allocations: 0.6772 MB / 0.7599 GB, free: 0.7695 MB / 0.6198 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001246/1.008, allocations: 107.2 kB / 0.76 GB, free: 0.6641 MB / 0.6198 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001002/1.008, allocations: 36 kB / 0.76 GB, free: 0.6289 MB / 0.6198 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 22
 * Number of states: 0 ()
 * Number of discrete variables: 5 ($whenCondition1,$PRE.mRoo_flow.nextTimeEvent,mRoo_flow.nextTimeEvent,$PRE.mRoo_flow.nextTimeEventScaled,mRoo_flow.nextTimeEventScaled)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (84):
 * Single equations (assignments): 82
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 0
 * Torn equation systems: 1
 * Mixed (continuous/discrete) equation systems: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 0
 * Non-linear torn systems: 1 {2 7}
Notification: Performance of prepare postOptimizeDAE: time 0.0006274/1.009, allocations: 272.4 kB / 0.7603 GB, free: 364 kB / 0.6198 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002202/1.009, allocations: 106.7 kB / 0.7604 GB, free: 256 kB / 0.6198 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002989/1.012, allocations: 0.9978 MB / 0.7614 GB, free: 15.23 MB / 0.6355 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002056/1.014, allocations: 0.8348 MB / 0.7622 GB, free: 14.34 MB / 0.6355 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.283e-06/1.014, allocations: 7.938 kB / 0.7622 GB, free: 14.33 MB / 0.6355 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0006288/1.015, allocations: 283.6 kB / 0.7625 GB, free: 14.04 MB / 0.6355 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002119/1.015, allocations: 19.98 kB / 0.7625 GB, free: 14.02 MB / 0.6355 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001059/1.016, allocations: 67.8 kB / 0.7625 GB, free: 13.95 MB / 0.6355 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001266/1.016, allocations: 44.55 kB / 0.7626 GB, free: 13.91 MB / 0.6355 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 0.002588/1.019, allocations: 0.7987 MB / 0.7634 GB, free: 13.1 MB / 0.6355 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.