Running command: translateModel(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger")
Notification: Performance of loadModel(Buildings): time 3.608/3.608, allocations: 402 MB / 416.6 MB, free: 10.12 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.079e-05/3.081e-05, allocations: 4 kB / 0.501 GB, free: 8.238 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1941/0.1942, allocations: 92.68 MB / 0.5915 GB, free: 11.38 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Applications.DataCenters.ChillerCooled.Equipment.Validation.HeatExchanger): time 0.6845/0.8788, allocations: 129.5 MB / 0.7179 GB, free: 12.99 MB / 0.5886 GB
Notification: Performance of NFInst.instExpressions: time 0.05445/0.9333, allocations: 24.57 MB / 0.7419 GB, free: 4.371 MB / 0.6042 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.007345/0.9407, allocations: 210.8 kB / 0.7421 GB, free: 4.164 MB / 0.6042 GB
Notification: Performance of NFTyping.typeComponents: time 0.008887/0.9496, allocations: 1.928 MB / 0.744 GB, free: 2.227 MB / 0.6042 GB
Notification: Performance of NFTyping.typeBindings: time 0.01931/0.969, allocations: 4.478 MB / 0.7484 GB, free: 13.73 MB / 0.6198 GB
Notification: Performance of NFTyping.typeClassSections: time 0.01756/0.9866, allocations: 4.201 MB / 0.7525 GB, free: 9.551 MB / 0.6198 GB
Notification: Performance of NFFlatten.flatten: time 0.01177/0.9984, allocations: 3.922 MB / 0.7563 GB, free: 5.621 MB / 0.6198 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.004234/1.003, allocations: 1.806 MB / 0.7581 GB, free: 3.805 MB / 0.6198 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.008282/1.011, allocations: 2.613 MB / 0.7606 GB, free: 1.184 MB / 0.6198 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.00434/1.015, allocations: 1.576 MB / 0.7622 GB, free: 15.6 MB / 0.6355 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.006771/1.022, allocations: 1.642 MB / 0.7638 GB, free: 13.96 MB / 0.6355 GB
Notification: Performance of NFPackage.collectConstants: time 0.001291/1.024, allocations: 140 kB / 0.7639 GB, free: 13.82 MB / 0.6355 GB
Notification: Performance of NFScalarize.scalarize: time 0.000971/1.025, allocations: 0.5561 MB / 0.7645 GB, free: 13.26 MB / 0.6355 GB
Notification: Performance of NFVerifyModel.verify: time 0.001545/1.026, allocations: 332 kB / 0.7648 GB, free: 12.94 MB / 0.6355 GB
Notification: Performance of NFConvertDAE.convert: time 0.009236/1.035, allocations: 4.877 MB / 0.7695 GB, free: 8.051 MB / 0.6355 GB
Notification: Performance of FrontEnd - DAE generated: time 5.922e-06/1.035, allocations: 8 kB / 0.7695 GB, free: 8.043 MB / 0.6355 GB
Notification: Performance of FrontEnd: time 5.951e-06/1.035, allocations: 3.938 kB / 0.7695 GB, free: 8.039 MB / 0.6355 GB
Notification: Performance of Transformations before backend: time 0.0001362/1.036, allocations: 3.938 kB / 0.7696 GB, free: 8.035 MB / 0.6355 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 553
 * Number of variables: 553
Notification: Performance of Generate backend data structure: time 0.008262/1.044, allocations: 2.973 MB / 0.7725 GB, free: 4.992 MB / 0.6355 GB
Notification: Performance of prepare preOptimizeDAE: time 5.384e-05/1.044, allocations: 12.03 kB / 0.7725 GB, free: 4.98 MB / 0.6355 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00654/1.05, allocations: 0.9046 MB / 0.7734 GB, free: 4.07 MB / 0.6355 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.00773/1.058, allocations: 2.829 MB / 0.7761 GB, free: 1.176 MB / 0.6355 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.002497/1.061, allocations: 448.5 kB / 0.7765 GB, free: 0.7344 MB / 0.6355 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005815/1.061, allocations: 231.9 kB / 0.7768 GB, free: 0.5078 MB / 0.6355 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.01035/1.072, allocations: 3.013 MB / 0.7797 GB, free: 13.29 MB / 0.6511 GB
Notification: Performance of preOpt findStateOrder (simulation): time 7.492e-05/1.072, allocations: 7.938 kB / 0.7797 GB, free: 13.28 MB / 0.6511 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003478/1.072, allocations: 95.94 kB / 0.7798 GB, free: 13.18 MB / 0.6511 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001056/1.072, allocations: 75.88 kB / 0.7799 GB, free: 13.11 MB / 0.6511 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01162/1.084, allocations: 2.674 MB / 0.7825 GB, free: 10.43 MB / 0.6511 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 0.03117/1.115, allocations: 15.34 MB / 0.7975 GB, free: 10.05 MB / 0.6667 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0084/1.124, allocations: 1.812 MB / 0.7992 GB, free: 8.203 MB / 0.6667 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.001668/1.125, allocations: 0.8465 MB / 0.8001 GB, free: 7.191 MB / 0.6667 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.005704/1.131, allocations: 1.251 MB / 0.8013 GB, free: 5.895 MB / 0.6667 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.002046/1.133, allocations: 242.1 kB / 0.8015 GB, free: 5.656 MB / 0.6667 GB
Notification: Performance of pre-optimization done (n=131): time 6.021e-06/1.133, allocations: 8 kB / 0.8015 GB, free: 5.648 MB / 0.6667 GB
Notification: Performance of matching and sorting (n=133): time 0.0363/1.169, allocations: 8.557 MB / 0.8099 GB, free: 12.9 MB / 0.6823 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002763/1.17, allocations: 0.5476 MB / 0.8104 GB, free: 12.22 MB / 0.6823 GB
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 5.0.1/Fluid/Actuators/BaseClasses/ValveParameters.mo:29:3-35:74:writable] Warning: Parameter hex1.thrWayVal.res3.dpValve_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=0.0) as default value.
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 5.0.1/Fluid/Interfaces/PartialTwoPortInterface.mo:8:3-10:52:writable] Warning: Parameter hex1.thrWayVal.res3.m_flow_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=0.0) as default value.
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 5.0.1/Fluid/Actuators/BaseClasses/ValveParameters.mo:29:3-35:74:writable] Warning: Parameter hex1.thrWayVal.res1.dpValve_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=0.0) as default value.
[/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/lib/omlibrary/Buildings 5.0.1/Fluid/Interfaces/PartialTwoPortInterface.mo:8:3-10:52:writable] Warning: Parameter hex1.thrWayVal.res1.m_flow_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=0.0) as default value.
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.006248/1.176, allocations: 2.549 MB / 0.8129 GB, free: 9.688 MB / 0.6823 GB
Notification: Performance of collectPreVariables (initialization): time 0.000479/1.177, allocations: 61.7 kB / 0.813 GB, free: 9.621 MB / 0.6823 GB
Notification: Performance of collectInitialEqns (initialization): time 0.002012/1.179, allocations: 1.538 MB / 0.8145 GB, free: 8.07 MB / 0.6823 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0007333/1.179, allocations: 469.3 kB / 0.8149 GB, free: 7.605 MB / 0.6823 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001941/1.18, allocations: 36 kB / 0.8149 GB, free: 7.57 MB / 0.6823 GB
Notification: Performance of setup shared object (initialization): time 0.0001979/1.18, allocations: 381.8 kB / 0.8153 GB, free: 7.191 MB / 0.6823 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.004269/1.184, allocations: 0.9721 MB / 0.8163 GB, free: 6.219 MB / 0.6823 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.004903/1.189, allocations: 1.609 MB / 0.8178 GB, free: 4.344 MB / 0.6823 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.004564/1.194, allocations: 1.17 MB / 0.819 GB, free: 3.168 MB / 0.6823 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.395e-05/1.194, allocations: 8 kB / 0.819 GB, free: 3.16 MB / 0.6823 GB
Notification: Performance of matching and sorting (n=243) (initialization): time 0.01654/1.21, allocations: 3.238 MB / 0.8221 GB, free: 15.9 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 0.002355/1.213, allocations: 6.186 MB / 0.8282 GB, free: 9.18 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.674e-05/1.213, allocations: 16 kB / 0.8282 GB, free: 9.164 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.001247/1.214, allocations: 241.6 kB / 0.8284 GB, free: 8.922 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004412/1.218, allocations: 0.5031 MB / 0.8289 GB, free: 8.418 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002316/1.221, allocations: 1.386 MB / 0.8303 GB, free: 6.98 MB / 0.698 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005548/1.226, allocations: 339.5 kB / 0.8306 GB, free: 6.648 MB / 0.698 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004384/1.227, allocations: 95.95 kB / 0.8307 GB, free: 6.555 MB / 0.698 GB
Notification: Performance of prepare postOptimizeDAE: time 1.492e-05/1.227, allocations: 4 kB / 0.8307 GB, free: 6.551 MB / 0.698 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.009711/1.236, allocations: 2.58 MB / 0.8332 GB, free: 3.957 MB / 0.698 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.095e-05/1.237, allocations: 23.97 kB / 0.8332 GB, free: 3.934 MB / 0.698 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0005591/1.237, allocations: 113.7 kB / 0.8333 GB, free: 3.816 MB / 0.698 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004141/1.241, allocations: 0.507 MB / 0.8338 GB, free: 3.309 MB / 0.698 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004339/1.246, allocations: 3.373 MB / 0.8371 GB, free: 15.65 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00505/1.251, allocations: 299.5 kB / 0.8374 GB, free: 15.36 MB / 0.7136 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004284/1.251, allocations: 99.95 kB / 0.8375 GB, free: 15.26 MB / 0.7136 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 63
 * Number of states: 0 ()
 * Number of discrete variables: 8 ($whenCondition1,TCon_in.a,TCon_in.b,TCon_in.last,$PRE.TCon_in.nextEvent,TCon_in.nextEvent,TCon_in.nextEventScaled,hex1.con.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (223):
 * Single equations (assignments): 214
 * Array equations: 3
 * Algorithm blocks: 1
 * Record equations: 3
 * 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 4,1 4}
Notification: Performance of prepare postOptimizeDAE: time 0.00214/1.253, allocations: 0.6984 MB / 0.8382 GB, free: 14.55 MB / 0.7136 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008767/1.254, allocations: 324 kB / 0.8385 GB, free: 14.23 MB / 0.7136 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01533/1.27, allocations: 2.946 MB / 0.8414 GB, free: 11.25 MB / 0.7136 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.01306/1.283, allocations: 2.379 MB / 0.8437 GB, free: 8.805 MB / 0.7136 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.497e-05/1.283, allocations: 0 / 0.8437 GB, free: 8.805 MB / 0.7136 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.002245/1.285, allocations: 0.6918 MB / 0.8444 GB, free: 8.09 MB / 0.7136 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007257/1.286, allocations: 32 kB / 0.8444 GB, free: 8.059 MB / 0.7136 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.004275/1.29, allocations: 291.4 kB / 0.8447 GB, free: 7.773 MB / 0.7136 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003368/1.29, allocations: 105.1 kB / 0.8448 GB, free: 7.672 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: Internal error Transformation Module PFPlusExt index Reduction Method Pantelides failed!
Notification: Performance of <failed> postOpt createDAEmodeBDAE (simulation): time 0.01058/1.301, allocations: 2.132 MB / 0.8469 GB, free: 5.504 MB / 0.7136 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.