Running command: translateModel(Buildings.Examples.Tutorial.Boiler.System7,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Examples.Tutorial.Boiler.System7")
Notification: Performance of loadModel(Buildings): time 3.758/3.758, allocations: 402 MB / 416.6 MB, free: 10.12 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 4.044e-05/4.066e-05, allocations: 4 kB / 0.5009 GB, free: 8.25 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.2107/0.2108, allocations: 92.69 MB / 0.5915 GB, free: 11.39 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Examples.Tutorial.Boiler.System7): time 1.815/2.026, allocations: 422.9 MB / 1.004 GB, free: 64.96 MB / 0.7448 GB
Notification: Performance of NFInst.instExpressions: time 0.1169/2.143, allocations: 58.5 MB / 1.062 GB, free: 30.34 MB / 0.7448 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.01758/2.16, allocations: 0.5286 MB / 1.062 GB, free: 29.81 MB / 0.7448 GB
Notification: Performance of NFTyping.typeComponents: time 0.01963/2.18, allocations: 4.442 MB / 1.066 GB, free: 26.01 MB / 0.7448 GB
Notification: Performance of NFTyping.typeBindings: time 0.04754/2.227, allocations: 11.55 MB / 1.078 GB, free: 18.41 MB / 0.7448 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0337/2.261, allocations: 8.326 MB / 1.086 GB, free: 10.29 MB / 0.7448 GB
Notification: Performance of NFFlatten.flatten: time 0.04043/2.302, allocations: 14.96 MB / 1.1 GB, free: 11.33 MB / 0.7605 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.01997/2.322, allocations: 7.133 MB / 1.107 GB, free: 4.16 MB / 0.7605 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.02325/2.345, allocations: 7.213 MB / 1.114 GB, free: 12.93 MB / 0.7761 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.01517/2.36, allocations: 5.407 MB / 1.12 GB, free: 7.5 MB / 0.7761 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.0217/2.382, allocations: 4.233 MB / 1.124 GB, free: 3.262 MB / 0.7761 GB
Notification: Performance of NFPackage.collectConstants: time 0.005541/2.387, allocations: 436 kB / 1.124 GB, free: 2.836 MB / 0.7761 GB
Notification: Performance of NFScalarize.scalarize: time 0.00601/2.393, allocations: 2.249 MB / 1.126 GB, free: 0.5781 MB / 0.7761 GB
Notification: Performance of NFVerifyModel.verify: time 0.006994/2.401, allocations: 1.152 MB / 1.128 GB, free: 15.42 MB / 0.7917 GB
Notification: Performance of NFConvertDAE.convert: time 0.03286/2.433, allocations: 15.12 MB / 1.142 GB, free: 320 kB / 0.7917 GB
Notification: Performance of FrontEnd - DAE generated: time 1.616e-05/2.434, allocations: 0 / 1.142 GB, free: 320 kB / 0.7917 GB
Notification: Performance of FrontEnd: time 3.146e-06/2.434, allocations: 0 / 1.142 GB, free: 320 kB / 0.7917 GB
Notification: Performance of Transformations before backend: time 0.0007053/2.434, allocations: 0 / 1.142 GB, free: 320 kB / 0.7917 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 2015
 * Number of variables: 2015
Notification: Performance of Generate backend data structure: time 0.03075/2.465, allocations: 9.826 MB / 1.152 GB, free: 6.352 MB / 0.8073 GB
Notification: Performance of prepare preOptimizeDAE: time 5.966e-05/2.465, allocations: 8.031 kB / 1.152 GB, free: 6.344 MB / 0.8073 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01924/2.484, allocations: 2.271 MB / 1.154 GB, free: 4.055 MB / 0.8073 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.03582/2.52, allocations: 9.474 MB / 1.163 GB, free: 10.5 MB / 0.823 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001091/2.521, allocations: 0.6324 MB / 1.164 GB, free: 9.871 MB / 0.823 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.003457/2.525, allocations: 0.8473 MB / 1.165 GB, free: 9.023 MB / 0.823 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.04288/2.568, allocations: 10.1 MB / 1.175 GB, free: 14.5 MB / 0.8386 GB
Notification: Performance of preOpt findStateOrder (simulation): time 0.000468/2.568, allocations: 27.75 kB / 1.175 GB, free: 14.47 MB / 0.8386 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002486/2.571, allocations: 340 kB / 1.175 GB, free: 14.14 MB / 0.8386 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0004486/2.571, allocations: 312.8 kB / 1.175 GB, free: 13.84 MB / 0.8386 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.03898/2.61, allocations: 8.36 MB / 1.184 GB, free: 5.465 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 1.198/3.808, allocations: 45.56 MB / 1.228 GB, free: 337.2 MB / 0.8699 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.02582/3.834, allocations: 5.844 MB / 1.234 GB, free: 336.8 MB / 0.8699 GB
Notification: Performance of preOpt evalFunc (simulation): time 0.04592/3.88, allocations: 11.63 MB / 1.245 GB, free: 330.6 MB / 0.8699 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01928/3.899, allocations: 3.722 MB / 1.249 GB, free: 329.4 MB / 0.8699 GB
Notification: Performance of preOpt simplifyInStream (simulation): time 0.006707/3.906, allocations: 486.2 kB / 1.249 GB, free: 329.3 MB / 0.8699 GB
Notification: Performance of pre-optimization done (n=521): time 3.256e-05/3.906, allocations: 0 / 1.249 GB, free: 329.3 MB / 0.8699 GB
Notification: Performance of matching and sorting (n=549): time 0.1444/4.05, allocations: 20.98 MB / 1.27 GB, free: 320.7 MB / 0.8699 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003334/4.051, allocations: 0.7766 MB / 1.27 GB, free: 319.9 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 0.02995/4.081, allocations: 7.363 MB / 1.278 GB, free: 317 MB / 0.8699 GB
Notification: Performance of collectPreVariables (initialization): time 0.002222/4.083, allocations: 170.5 kB / 1.278 GB, free: 316.8 MB / 0.8699 GB
Notification: Performance of collectInitialEqns (initialization): time 0.01002/4.093, allocations: 5.248 MB / 1.283 GB, free: 312.3 MB / 0.8699 GB
Notification: Performance of collectInitialBindings (initialization): time 0.004601/4.098, allocations: 1.856 MB / 1.285 GB, free: 310.7 MB / 0.8699 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 0.001879/4.1, allocations: 133.5 kB / 1.285 GB, free: 310.6 MB / 0.8699 GB
Notification: Performance of setup shared object (initialization): time 0.000793/4.101, allocations: 0.5664 MB / 1.285 GB, free: 310 MB / 0.8699 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.0138/4.114, allocations: 2.888 MB / 1.288 GB, free: 308.6 MB / 0.8699 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.01373/4.128, allocations: 4.812 MB / 1.293 GB, free: 304.9 MB / 0.8699 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.01373/4.142, allocations: 3.674 MB / 1.297 GB, free: 303 MB / 0.8699 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.496e-05/4.142, allocations: 11.34 kB / 1.297 GB, free: 303 MB / 0.8699 GB
Notification: Performance of matching and sorting (n=890) (initialization): time 0.05675/4.199, allocations: 10.65 MB / 1.307 GB, free: 297.8 MB / 0.8699 GB
Notification: Performance of prepare postOptimizeDAE: time 0.004908/4.204, allocations: 23.77 MB / 1.33 GB, free: 272.9 MB / 0.8699 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002122/4.204, allocations: 54.14 kB / 1.33 GB, free: 272.9 MB / 0.8699 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01756/4.222, allocations: 1.97 MB / 1.332 GB, free: 272.1 MB / 0.8699 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0163/4.238, allocations: 1.779 MB / 1.334 GB, free: 271 MB / 0.8699 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02959/4.268, allocations: 21.19 MB / 1.355 GB, free: 248.5 MB / 0.8699 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01714/4.285, allocations: 0.8942 MB / 1.355 GB, free: 247.6 MB / 0.8699 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001945/4.287, allocations: 325.3 kB / 1.356 GB, free: 247.3 MB / 0.8699 GB
Notification: Performance of prepare postOptimizeDAE: time 1.527e-05/4.287, allocations: 4 kB / 1.356 GB, free: 247.3 MB / 0.8699 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.03335/4.32, allocations: 8.313 MB / 1.364 GB, free: 238.8 MB / 0.8699 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001807/4.321, allocations: 51.98 kB / 1.364 GB, free: 238.8 MB / 0.8699 GB
Notification: Performance of postOpt tearingSystem (initialization): time 0.01558/4.336, allocations: 1.727 MB / 1.366 GB, free: 237 MB / 0.8699 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01241/4.349, allocations: 1.522 MB / 1.367 GB, free: 235.5 MB / 0.8699 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02835/4.377, allocations: 23.77 MB / 1.39 GB, free: 210 MB / 0.8699 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01473/4.392, allocations: 0.7777 MB / 1.391 GB, free: 209.2 MB / 0.8699 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001758/4.394, allocations: 308.7 kB / 1.391 GB, free: 208.9 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.System7.spl2.vol.dynBal.Medium.specificInternalEnergy(Buildings.Examples.Tutorial.Boiler.System7.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: 186
 * Number of states: 0 ()
 * Number of discrete variables: 64 ($PRE.T1.enableFire,$PRE.T2.enableFire,$PRE.T3.enableFire,$PRE.T4.enableFire,$whenCondition1,$PRE.timTab.nextTimeEvent,stateGraphRoot.resume,stateGraphRoot.suspend,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,timTab.nextTimeEvent,$PRE.timTab.nextTimeEventScaled,timTab.nextTimeEventScaled,$PRE.weaDat.conTim1.tStart,weaDat.conTim1.tStart,$PRE.weaDat.conTim.tStart,weaDat.conTim.tStart,stateGraphRoot.activeSteps,alternative.split[2].available,$PRE.allOff.localActive,allOff.localActive,$PRE.allOff.newActive,allOff.newActive,$PRE.allOff.oldActive,allOff.oldActive,allOff.active,T1.condition,T1.enableFire,$PRE.boilerOn.localActive,boilerOn.localActive,$PRE.boilerOn.newActive,boilerOn.newActive,$PRE.boilerOn.oldActive,boilerOn.oldActive,boilerOn.active,T2.condition,T2.enableFire,T3.condition,T3.enableFire,T3.fire,$PRE.T3.t_start,T3.t_start,T4.condition,T4.enableFire,T4.fire,$PRE.T4.t_start,T4.t_start,pumpsOn.active,$PRE.pumpsOn.localActive,pumpsOn.localActive,pumpsOn.inPort[1].set,pumpsOn.outPort[1].reset,$PRE.pumpsOn.newActive,pumpsOn.newActive,$PRE.pumpsOn.oldActive,pumpsOn.oldActive,lessThreshold.y,lessThreshold1.y,greThrTRoo.y,greThrTROut.y,conPIDRad.I.trigger_internal,conPIDBoi.I.trigger_internal)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (830):
 * Single equations (assignments): 787
 * 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%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 1,(1,100.0%) 4}
 * Non-linear torn systems: 6 {1 2,5 6,1 3,1 3,1 3,1 3}
Notification: Performance of prepare postOptimizeDAE: time 0.008326/4.402, allocations: 2.469 MB / 1.394 GB, free: 206.5 MB / 0.8699 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.003307/4.405, allocations: 0.9722 MB / 1.395 GB, free: 205.5 MB / 0.8699 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.05144/4.457, allocations: 9.76 MB / 1.404 GB, free: 195.6 MB / 0.8699 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.04487/4.502, allocations: 7.831 MB / 1.412 GB, free: 187.6 MB / 0.8699 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.495e-05/4.502, allocations: 0 / 1.412 GB, free: 187.6 MB / 0.8699 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.007455/4.509, allocations: 1.897 MB / 1.414 GB, free: 185.6 MB / 0.8699 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.003676/4.513, allocations: 136 kB / 1.414 GB, free: 185.5 MB / 0.8699 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.01419/4.527, allocations: 0.7485 MB / 1.415 GB, free: 184.8 MB / 0.8699 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001878/4.529, allocations: 423.3 kB / 1.415 GB, free: 184.3 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 0.03718/4.566, allocations: 6.262 MB / 1.421 GB, free: 178.1 MB / 0.8699 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.