Running command: translateModel(Buildings.Fluid.Interfaces.Examples.ConservationEquation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_5.0.1_Buildings.Fluid.Interfaces.Examples.ConservationEquation")
Notification: Performance of loadModel(Buildings): time 3.633/3.633, allocations: 402 MB / 416.6 MB, free: 10.13 MB / 346.7 MB
Notification: Performance of FrontEnd - loaded program: time 3.196e-05/3.212e-05, allocations: 4 kB / 0.5009 GB, free: 8.258 MB / 410.7 MB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.206/0.2061, allocations: 92.68 MB / 0.5915 GB, free: 11.39 MB / 0.4948 GB
Notification: Performance of NFInst.instantiate(Buildings.Fluid.Interfaces.Examples.ConservationEquation): time 0.5123/0.7184, allocations: 16.73 MB / 0.6078 GB, free: 4.277 MB / 0.4948 GB
Notification: Performance of NFInst.instExpressions: time 0.00852/0.727, allocations: 3.845 MB / 0.6116 GB, free: 3.465 MB / 0.4948 GB
Notification: Performance of NFInst.updateImplicitVariability: time 0.001184/0.7283, allocations: 26.72 kB / 0.6116 GB, free: 3.453 MB / 0.4948 GB
Notification: Performance of NFTyping.typeComponents: time 0.001478/0.7298, allocations: 277.1 kB / 0.6118 GB, free: 3.348 MB / 0.4948 GB
Notification: Performance of NFTyping.typeBindings: time 0.003364/0.7332, allocations: 0.6536 MB / 0.6125 GB, free: 3.129 MB / 0.4948 GB
Notification: Performance of NFTyping.typeClassSections: time 0.003074/0.7363, allocations: 0.5923 MB / 0.6131 GB, free: 2.926 MB / 0.4948 GB
Notification: Performance of NFFlatten.flatten: time 0.002742/0.7391, allocations: 0.8047 MB / 0.6138 GB, free: 2.617 MB / 0.4948 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0009094/0.74, allocations: 313.8 kB / 0.6141 GB, free: 2.523 MB / 0.4948 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.001723/0.7418, allocations: 0.5054 MB / 0.6146 GB, free: 2.293 MB / 0.4948 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.001032/0.7428, allocations: 316.8 kB / 0.6149 GB, free: 2.184 MB / 0.4948 GB
Notification: Performance of NFFlatten.collectFunctions: time 0.002823/0.7457, allocations: 0.7613 MB / 0.6157 GB, free: 1.98 MB / 0.4948 GB
Notification: Performance of NFPackage.collectConstants: time 0.0004404/0.7462, allocations: 41.44 kB / 0.6157 GB, free: 1.98 MB / 0.4948 GB
Notification: Performance of NFScalarize.scalarize: time 0.0002745/0.7464, allocations: 110.5 kB / 0.6158 GB, free: 1.934 MB / 0.4948 GB
Notification: Performance of NFVerifyModel.verify: time 0.0004617/0.7469, allocations: 67.16 kB / 0.6159 GB, free: 1.934 MB / 0.4948 GB
Notification: Performance of NFConvertDAE.convert: time 0.002438/0.7494, allocations: 0.8148 MB / 0.6167 GB, free: 1.73 MB / 0.4948 GB
Notification: Performance of FrontEnd - DAE generated: time 4.098e-06/0.7494, allocations: 1.844 kB / 0.6167 GB, free: 1.73 MB / 0.4948 GB
Notification: Performance of FrontEnd: time 3.877e-06/0.7494, allocations: 0 / 0.6167 GB, free: 1.73 MB / 0.4948 GB
Notification: Performance of Transformations before backend: time 2.699e-05/0.7495, allocations: 3.938 kB / 0.6167 GB, free: 1.727 MB / 0.4948 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 113
 * Number of variables: 113
Notification: Performance of Generate backend data structure: time 0.002068/0.7516, allocations: 0.8358 MB / 0.6175 GB, free: 1.07 MB / 0.4948 GB
Notification: Performance of prepare preOptimizeDAE: time 5.14e-05/0.7516, allocations: 8.656 kB / 0.6175 GB, free: 1.07 MB / 0.4948 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001793/0.7534, allocations: 215.1 kB / 0.6177 GB, free: 1.016 MB / 0.4948 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.001414/0.7549, allocations: 0.4891 MB / 0.6182 GB, free: 0.668 MB / 0.4948 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006343/0.7555, allocations: 96.56 kB / 0.6183 GB, free: 0.6523 MB / 0.4948 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001391/0.7557, allocations: 47.02 kB / 0.6183 GB, free: 0.6367 MB / 0.4948 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.003198/0.7589, allocations: 0.71 MB / 0.619 GB, free: 304 kB / 0.4948 GB
Notification: Performance of preOpt findStateOrder (simulation): time 3.561e-05/0.759, allocations: 1.531 kB / 0.619 GB, free: 304 kB / 0.4948 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.294e-05/0.7591, allocations: 21.19 kB / 0.6191 GB, free: 288 kB / 0.4948 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.876e-05/0.7591, allocations: 22.92 kB / 0.6191 GB, free: 280 kB / 0.4948 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00368/0.7628, allocations: 0.5782 MB / 0.6196 GB, free: 128 kB / 0.4948 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 0.006587/0.7695, allocations: 3.177 MB / 0.6227 GB, free: 13.4 MB / 0.5105 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.003273/0.7728, allocations: 0.531 MB / 0.6233 GB, free: 13.21 MB / 0.5105 GB
Notification: Performance of preOpt evalFunc (simulation): time 5.096e-05/0.7729, allocations: 8.328 kB / 0.6233 GB, free: 13.21 MB / 0.5105 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002404/0.7753, allocations: 447.8 kB / 0.6237 GB, free: 13.02 MB / 0.5105 GB
Notification: Performance of pre-optimization done (n=35): time 3.747e-06/0.7753, allocations: 0 / 0.6237 GB, free: 13.02 MB / 0.5105 GB
Notification: Performance of matching and sorting (n=35): time 0.005557/0.7809, allocations: 0.9795 MB / 0.6246 GB, free: 12.64 MB / 0.5105 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001241/0.7811, allocations: 192 kB / 0.6248 GB, free: 12.42 MB / 0.5105 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001008/0.7821, allocations: 466.7 kB / 0.6253 GB, free: 12.2 MB / 0.5105 GB
Notification: Performance of collectPreVariables (initialization): time 0.0001431/0.7822, allocations: 33.48 kB / 0.6253 GB, free: 12.17 MB / 0.5105 GB
Notification: Performance of collectInitialEqns (initialization): time 0.0004059/0.7827, allocations: 313 kB / 0.6256 GB, free: 11.92 MB / 0.5105 GB
Notification: Performance of collectInitialBindings (initialization): time 0.0002033/0.7829, allocations: 115.1 kB / 0.6257 GB, free: 11.83 MB / 0.5105 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 4.564e-05/0.7829, allocations: 10.72 kB / 0.6257 GB, free: 11.82 MB / 0.5105 GB
Notification: Performance of setup shared object (initialization): time 0.0002133/0.7832, allocations: 371.2 kB / 0.6261 GB, free: 11.48 MB / 0.5105 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.001196/0.7844, allocations: 221.4 kB / 0.6263 GB, free: 11.43 MB / 0.5105 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.001376/0.7858, allocations: 391.5 kB / 0.6267 GB, free: 11.16 MB / 0.5105 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.001336/0.7871, allocations: 288.8 kB / 0.6269 GB, free: 11.04 MB / 0.5105 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.304e-06/0.7872, allocations: 4.938 kB / 0.6269 GB, free: 11.04 MB / 0.5105 GB
Notification: Performance of matching and sorting (n=54) (initialization): time 0.003075/0.7903, allocations: 0.6861 MB / 0.6276 GB, free: 10.77 MB / 0.5105 GB
Notification: Performance of prepare postOptimizeDAE: time 0.0008361/0.7912, allocations: 1.517 MB / 0.6291 GB, free: 9.156 MB / 0.5105 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.694e-05/0.7912, allocations: 3.375 kB / 0.6291 GB, free: 9.156 MB / 0.5105 GB
Notification: Performance of postOpt tearingSystem (initialization): time 3.107e-05/0.7913, allocations: 15.36 kB / 0.6291 GB, free: 9.148 MB / 0.5105 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001614/0.7929, allocations: 150.9 kB / 0.6293 GB, free: 9.141 MB / 0.5105 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0005653/0.7935, allocations: 0.6054 MB / 0.6299 GB, free: 8.543 MB / 0.5105 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001533/0.795, allocations: 116.3 kB / 0.63 GB, free: 8.504 MB / 0.5105 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.942e-05/0.7951, allocations: 26.88 kB / 0.63 GB, free: 8.496 MB / 0.5105 GB
Notification: Performance of prepare postOptimizeDAE: time 1.415e-05/0.7952, allocations: 5.031 kB / 0.63 GB, free: 8.496 MB / 0.5105 GB
Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.00219/0.7974, allocations: 0.5518 MB / 0.6305 GB, free: 8.293 MB / 0.5105 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.002e-05/0.7974, allocations: 7.375 kB / 0.6305 GB, free: 8.289 MB / 0.5105 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.526e-05/0.7974, allocations: 6.375 kB / 0.6305 GB, free: 8.289 MB / 0.5105 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001208/0.7987, allocations: 140.8 kB / 0.6307 GB, free: 8.273 MB / 0.5105 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0004747/0.7992, allocations: 0.6063 MB / 0.6313 GB, free: 7.676 MB / 0.5105 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001235/0.8004, allocations: 85.59 kB / 0.6314 GB, free: 7.648 MB / 0.5105 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.33e-05/0.8005, allocations: 22.25 kB / 0.6314 GB, free: 7.645 MB / 0.5105 GB
Warning: Assuming fixed start value for the following 1 variables:
         dyn.m:VARIABLE(min = max(0.0, 0.0) start = 0.01 * dyn.rho_start unit = "kg" fixed = true stateSelect=StateSelect.prefer )  "Mass of fluid" type: Real
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 17
 * Number of states: 0 ()
 * Number of discrete variables: 7 ($whenCondition1,QSen_flow.a,QSen_flow.b,QSen_flow.last,$PRE.QSen_flow.nextEvent,QSen_flow.nextEvent,QSen_flow.nextEventScaled)
 * Number of discrete states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (48):
 * Single equations (assignments): 46
 * Array equations: 0
 * Algorithm blocks: 1
 * Record equations: 0
 * When equations: 0
 * If-equations: 0
 * Equation systems (linear and non-linear blocks): 1
 * Torn equation systems: 0
 * 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: Performance of prepare postOptimizeDAE: time 0.000693/0.8012, allocations: 246.2 kB / 0.6316 GB, free: 7.449 MB / 0.5105 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002051/0.8014, allocations: 65.83 kB / 0.6317 GB, free: 7.414 MB / 0.5105 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002983/0.8044, allocations: 0.6514 MB / 0.6323 GB, free: 7.156 MB / 0.5105 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002717/0.8072, allocations: 0.8003 MB / 0.6331 GB, free: 6.637 MB / 0.5105 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.382e-05/0.8073, allocations: 1 kB / 0.6331 GB, free: 6.637 MB / 0.5105 GB
Notification: Performance of postOpt removeConstants (simulation): time 0.0006413/0.8079, allocations: 179.1 kB / 0.6333 GB, free: 6.492 MB / 0.5105 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001653/0.8081, allocations: 13.48 kB / 0.6333 GB, free: 6.484 MB / 0.5105 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001217/0.8093, allocations: 80.53 kB / 0.6333 GB, free: 6.469 MB / 0.5105 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001159/0.8095, allocations: 27.17 kB / 0.6334 GB, free: 6.461 MB / 0.5105 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 0.002869/0.8123, allocations: 0.719 MB / 0.6341 GB, free: 6.008 MB / 0.5105 GB
Error: post-optimization module createDAEmodeBDAE (simulation) failed.