Running command: translateModel(Buildings.Examples.Tutorial.Boiler.System6,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Examples.Tutorial.Boiler.System6")
Notification: Performance of loadModel(Buildings): time 3.783/3.783, allocations: 402 MB / 416.6 MB, free: 10.1 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.003e-05/3.015e-05, allocations: 4 kB / 0.5009 GB, free: 8.238 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.1963/0.1963, allocations: 92.69 MB / 0.5915 GB, free: 11.36 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Examples.Tutorial.Boiler.System6): time 1.868/2.065, allocations: 422.4 MB / 1.004 GB, free: 64.76 MB / 0.7448 GB
Notification: Performance of NFInst.instExpressions: time 0.1244/2.189, allocations: 58.19 MB / 1.061 GB, free: 31.02 MB / 0.7448 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.0191/2.208, allocations: 0.5092 MB / 1.061 GB, free: 30.51 MB / 0.7448 GB
Notification: Performance of NFTyping.typeComponents: time 0.02268/2.231, allocations: 4.411 MB / 1.066 GB, free: 26.74 MB / 0.7448 GB
Notification: Performance of NFTyping.typeBindings: time 0.04718/2.278, allocations: 11.53 MB / 1.077 GB, free: 19.14 MB / 0.7448 GB
Notification: Performance of NFTyping.typeClassSections: time 0.03252/2.311, allocations: 8.209 MB / 1.085 GB, free: 11.39 MB / 0.7448 GB
Notification: Performance of NFFlatten.flatten: time 0.03867/2.349, allocations: 14.72 MB / 1.099 GB, free: 12.66 MB / 0.7605 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.01944/2.369, allocations: 6.922 MB / 1.106 GB, free: 5.707 MB / 0.7605 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.0229/2.392, allocations: 7.108 MB / 1.113 GB, free: 14.58 MB / 0.7761 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.01485/2.407, allocations: 5.317 MB / 1.118 GB, free: 9.242 MB / 0.7761 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.02208/2.429, allocations: 4.205 MB / 1.122 GB, free: 5.031 MB / 0.7761 GB
Notification: Performance of NFPackage.collectConstants: time 0.005625/2.435, allocations: 420 kB / 1.123 GB, free: 4.621 MB / 0.7761 GB
Notification: Performance of NFScalarize.scalarize: time 0.00637/2.441, allocations: 2.194 MB / 1.125 GB, free: 2.418 MB / 0.7761 GB
Notification: Performance of NFVerifyModel.verify: time 0.007591/2.449, allocations: 1.133 MB / 1.126 GB, free: 1.285 MB / 0.7761 GB
Notification: Performance of NFConvertDAE.convert: time 0.03234/2.481, allocations: 14.86 MB / 1.14 GB, free: 2.426 MB / 0.7917 GB
Notification: Performance of FrontEnd - DAE generated: time 4.859e-06/2.481, allocations: 0 / 1.14 GB, free: 2.426 MB / 0.7917 GB
Notification: Performance of FrontEnd: time 3.877e-06/2.481, allocations: 0 / 1.14 GB, free: 2.426 MB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.0007265/2.482, allocations: 4 kB / 1.14 GB, free: 2.422 MB / 0.7917 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 1914
 * Number of variables: 1914
Notification: Performance of Generate backend data structure: time 0.02929/2.511, allocations: 9.572 MB / 1.15 GB, free: 8.727 MB / 0.8073 GB
Notification: Performance of prepare preOptimizeDAE: time 6.373e-05/2.511, allocations: 12.02 kB / 1.15 GB, free: 8.715 MB / 0.8073 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01894/2.53, allocations: 2.229 MB / 1.152 GB, free: 6.469 MB / 0.8073 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.03488/2.565, allocations: 9.364 MB / 1.161 GB, free: 13.02 MB / 0.823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0009278/2.566, allocations: 0.5906 MB / 1.162 GB, free: 12.43 MB / 0.823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.003094/2.569, allocations: 0.8065 MB / 1.162 GB, free: 11.63 MB / 0.823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04032/2.61, allocations: 9.742 MB / 1.172 GB, free: 1.465 MB / 0.823 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.0003821/2.61, allocations: 23.78 kB / 1.172 GB, free: 1.441 MB / 0.823 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.00225/2.612, allocations: 324 kB / 1.172 GB, free: 1.125 MB / 0.823 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004215/2.613, allocations: 302.1 kB / 1.173 GB, free: 0.8281 MB / 0.823 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03673/2.65, allocations: 8.064 MB / 1.18 GB, free: 8.746 MB / 0.8386 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 1.119/3.769, allocations: 44.17 MB / 1.224 GB, free: 338.8 MB / 0.8699 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.02403/3.793, allocations: 5.458 MB / 1.229 GB, free: 338.7 MB / 0.8699 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.04171/3.834, allocations: 10.76 MB / 1.239 GB, free: 332.9 MB / 0.8699 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01898/3.853, allocations: 3.585 MB / 1.243 GB, free: 331.8 MB / 0.8699 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.005714/3.859, allocations: 464 kB / 1.243 GB, free: 331.7 MB / 0.8699 GB
Notification: Performance of pre-optimization done (n=484): time 2.318e-05/3.859, allocations: 4.141 kB / 1.243 GB, free: 331.7 MB / 0.8699 GB
Notification: Performance of matching and sorting (n=512): time 0.1104/3.97, allocations: 20.05 MB / 1.263 GB, free: 324 MB / 0.8699 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002854/3.97, allocations: 0.8478 MB / 1.264 GB, free: 323 MB / 0.8699 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 valBoi.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 valBoi.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 valBoi.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 valBoi.res1.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 valRad.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 valRad.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 valRad.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 valRad.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 0.01944/3.99, allocations: 7.281 MB / 1.271 GB, free: 320.4 MB / 0.8699 GB
Notification: Performance of collectPreVariables (initialization): time 0.001508/3.991, allocations: 150.7 kB / 1.271 GB, free: 320.3 MB / 0.8699 GB
Notification: Performance of collectInitialEqns (initialization): time 0.006096/3.997, allocations: 5.179 MB / 1.276 GB, free: 315.9 MB / 0.8699 GB
Notification: Performance of collectInitialBindings (initialization): time 0.003078/4, allocations: 1.77 MB / 1.278 GB, free: 314.4 MB / 0.8699 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.0008439/4.001, allocations: 126 kB / 1.278 GB, free: 314.3 MB / 0.8699 GB
Notification: Performance of setup shared object (initialization): time 0.0004949/4.002, allocations: 0.5581 MB / 1.278 GB, free: 313.8 MB / 0.8699 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.01104/4.013, allocations: 2.792 MB / 1.281 GB, free: 312.4 MB / 0.8699 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01267/4.025, allocations: 4.634 MB / 1.286 GB, free: 308.8 MB / 0.8699 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01266/4.038, allocations: 3.572 MB / 1.289 GB, free: 306.9 MB / 0.8699 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.145e-05/4.038, allocations: 11.06 kB / 1.289 GB, free: 306.9 MB / 0.8699 GB
Notification: Performance of matching and sorting (n=832) (initialization): time 0.05436/4.093, allocations: 10.52 MB / 1.299 GB, free: 301.9 MB / 0.8699 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004506/4.097, allocations: 22.07 MB / 1.321 GB, free: 278.7 MB / 0.8699 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002079/4.098, allocations: 49.39 kB / 1.321 GB, free: 278.7 MB / 0.8699 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01688/4.114, allocations: 1.951 MB / 1.323 GB, free: 277.9 MB / 0.8699 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01589/4.13, allocations: 1.733 MB / 1.325 GB, free: 277.4 MB / 0.8699 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02557/4.156, allocations: 20.96 MB / 1.345 GB, free: 255.7 MB / 0.8699 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01664/4.173, allocations: 0.8763 MB / 1.346 GB, free: 254.8 MB / 0.8699 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001799/4.175, allocations: 319.8 kB / 1.346 GB, free: 254.5 MB / 0.8699 GB
Notification: Performance of prepare postOptimizeDAE: time 1.671e-05/4.175, allocations: 4 kB / 1.346 GB, free: 254.5 MB / 0.8699 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.03866/4.213, allocations: 8.174 MB / 1.354 GB, free: 246.2 MB / 0.8699 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002236/4.213, allocations: 52.95 kB / 1.354 GB, free: 246.2 MB / 0.8699 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.0198/4.233, allocations: 1.714 MB / 1.356 GB, free: 244.4 MB / 0.8699 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01585/4.249, allocations: 1.475 MB / 1.357 GB, free: 243 MB / 0.8699 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02863/4.278, allocations: 23.54 MB / 1.38 GB, free: 217.7 MB / 0.8699 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01475/4.293, allocations: 0.7633 MB / 1.381 GB, free: 216.9 MB / 0.8699 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001873/4.295, allocations: 284.7 kB / 1.381 GB, free: 216.6 MB / 0.8699 GB
Warning: Assuming fixed start value for the following 7 variables:
         spl1.vol.dynBal.m:VARIABLE(min = max(0.0, 0.0) start = spl1.vol.V * spl1.vol.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer protected = true )  "Mass of fluid" type: Real
         valRad.vol.dynBal.m:VARIABLE(min = max(0.0, 0.0) start = valRad.vol.V * valRad.vol.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer protected = true )  "Mass of fluid" type: Real
         spl4.vol.dynBal.m:VARIABLE(min = max(0.0, 0.0) start = spl4.vol.V * spl4.vol.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer protected = true )  "Mass of fluid" type: Real
         spl.vol.dynBal.m:VARIABLE(min = max(0.0, 0.0) start = spl.vol.V * spl.vol.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer protected = true )  "Mass of fluid" type: Real
         pumRad.vol.dynBal.m:VARIABLE(min = max(0.0, 0.0) start = pumRad.vol.V * pumRad.vol.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer protected = true )  "Mass of fluid" type: Real
         spl2.vol.dynBal.U:VARIABLE(start = spl2.vol.dynBal.fluidVolume * spl2.vol.dynBal.rho_start * Buildings.Examples.Tutorial.Boiler.System6.spl2.vol.dynBal.Medium.specificInternalEnergy(Buildings.Examples.Tutorial.Boiler.System6.spl2.vol.dynBal.Medium.setState_pTX(spl2.vol.dynBal.p_start, spl2.vol.dynBal.T_start, {})) + (spl2.vol.dynBal.T_start - 273.15) * 0.0 unit = "J" fixed = true nominal = 100000.0 protected = true )  "Internal energy of fluid" type: Real
         mix2.vol.dynBal.m:VARIABLE(min = max(0.0, 0.0) start = mix2.vol.V * mix2.vol.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer protected = true )  "Mass of fluid" type: Real
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 173
 * Number of states: 0 ()
 * Number of discrete variables: 21 ($whenCondition1,$PRE.timTab.nextTimeEvent,$whenCondition3,$whenCondition2,timTab.nextTimeEvent,$PRE.timTab.nextTimeEventScaled,timTab.nextTimeEventScaled,$PRE.hysTOut.y,hysTOut.y,$PRE.hysTBoi.y,hysTBoi.y,and1.y,and2.y,$PRE.hysPum.y,hysPum.y,$PRE.weaDat.conTim1.tStart,weaDat.conTim1.tStart,$PRE.weaDat.conTim.tStart,weaDat.conTim.tStart,conPIDRad.I.trigger_internal,conPIDBoi.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (772):
 * Single equations (assignments): 729
 * Array equations: 10
 * Algorithm blocks: 4
 * Record equations: 8
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 8
 * Torn equation systems: 13
 * Mixed (continuous/discrete) equation systems: 0
Notification: Equation system details:
 * Constant Jacobian: 0
 * Linear Jacobian (size,density): 0
 * Non-linear Jacobian: 8 {1,1,1,1,1,1,1,1}
 * Without analytic Jacobian: 0
Notification: Torn system details for strict tearing set:
 * Linear torn systems: 7 {(2,100.0%) 4,(1,100.0%) 4,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1}
 * Non-linear torn systems: 6 {1 2,3 8,1 3,1 3,1 3,1 3}
Notification: Performance of prepare postOptimizeDAE: time 0.01054/4.305, allocations: 2.411 MB / 1.384 GB, free: 214.2 MB / 0.8699 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.004514/4.31, allocations: 0.949 MB / 1.385 GB, free: 213.2 MB / 0.8699 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.06417/4.374, allocations: 9.452 MB / 1.394 GB, free: 203.6 MB / 0.8699 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.04325/4.417, allocations: 7.574 MB / 1.401 GB, free: 195.9 MB / 0.8699 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.066e-05/4.417, allocations: 0 / 1.401 GB, free: 195.9 MB / 0.8699 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.007727/4.425, allocations: 1.871 MB / 1.403 GB, free: 194 MB / 0.8699 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.004019/4.429, allocations: 136 kB / 1.403 GB, free: 193.8 MB / 0.8699 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.01409/4.443, allocations: 0.7446 MB / 1.404 GB, free: 193.1 MB / 0.8699 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.00177/4.445, allocations: 391.9 kB / 1.404 GB, free: 192.7 MB / 0.8699 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 0.03624/4.481, allocations: 6.109 MB / 1.41 GB, free: 186.6 MB / 0.8699 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.