Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001666/0.001666, allocations: 110 kB / 18.93 MB, free: 2.945 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001862/0.001862, allocations: 185.3 kB / 22.23 MB, free: 5.16 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.484/1.484, allocations: 225.6 MB / 251 MB, free: 13.02 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.2-maint.10.0.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.2-maint.10.0.x/package.mo): time 2.588/2.588, allocations: 443.5 MB / 0.7321 GB, free: 12.25 MB / 0.5919 GB " [Timeout remaining time 177] Using package Buildings with version 10.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 10.1.2-maint.10.0.x/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|sin.ports.1..m_flow",fileNamePrefix="Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised") translateModel(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|sin.ports.1..m_flow",fileNamePrefix="Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.002005/0.002005, allocations: 63.89 kB / 1.061 GB, free: 2.977 MB / 0.8575 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.9261/0.9281, allocations: 160.8 MB / 1.218 GB, free: 3.719 MB / 0.92 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised): time 0.2077/1.136, allocations: 162.3 MB / 1.377 GB, free: 4.387 MB / 1.076 GB Notification: Performance of NFInst.instExpressions: time 0.004334/1.14, allocations: 1.777 MB / 1.379 GB, free: 2.605 MB / 1.076 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003829/1.14, allocations: 15.81 kB / 1.379 GB, free: 2.59 MB / 1.076 GB Notification: Performance of NFTyping.typeComponents: time 0.0008888/1.141, allocations: 170.9 kB / 1.379 GB, free: 2.422 MB / 1.076 GB Notification: Performance of NFTyping.typeBindings: time 0.001735/1.143, allocations: 0.5524 MB / 1.379 GB, free: 1.867 MB / 1.076 GB Notification: Performance of NFTyping.typeClassSections: time 0.001342/1.144, allocations: 406.3 kB / 1.38 GB, free: 1.473 MB / 1.076 GB Notification: Performance of NFFlatten.flatten: time 0.003425/1.148, allocations: 2.556 MB / 1.382 GB, free: 14.91 MB / 1.092 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001092/1.149, allocations: 0.6449 MB / 1.383 GB, free: 14.25 MB / 1.092 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002188/1.151, allocations: 1.067 MB / 1.384 GB, free: 13.18 MB / 1.092 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001026/1.152, allocations: 0.7467 MB / 1.385 GB, free: 12.43 MB / 1.092 GB Notification: Performance of NFPackage.collectConstants: time 0.0001201/1.152, allocations: 56 kB / 1.385 GB, free: 12.38 MB / 1.092 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001728/1.154, allocations: 0.7679 MB / 1.385 GB, free: 11.61 MB / 1.092 GB Notification: Performance of NFScalarize.scalarize: time 0.0003853/1.154, allocations: 314.8 kB / 1.386 GB, free: 11.3 MB / 1.092 GB Notification: Performance of NFVerifyModel.verify: time 0.0007681/1.155, allocations: 0.5401 MB / 1.386 GB, free: 10.76 MB / 1.092 GB Notification: Performance of NFConvertDAE.convert: time 0.002054/1.157, allocations: 1.415 MB / 1.388 GB, free: 9.34 MB / 1.092 GB Notification: Performance of FrontEnd - DAE generated: time 8.295e-06/1.157, allocations: 4 kB / 1.388 GB, free: 9.336 MB / 1.092 GB Notification: Performance of FrontEnd: time 1.553e-06/1.157, allocations: 4 kB / 1.388 GB, free: 9.332 MB / 1.092 GB Notification: Performance of Transformations before backend: time 2.752e-05/1.157, allocations: 0 / 1.388 GB, free: 9.332 MB / 1.092 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 126 * Number of variables: 126 Notification: Performance of Generate backend data structure: time 0.002604/1.16, allocations: 1.473 MB / 1.389 GB, free: 7.797 MB / 1.092 GB Notification: Performance of prepare preOptimizeDAE: time 4.256e-05/1.16, allocations: 12.03 kB / 1.389 GB, free: 7.785 MB / 1.092 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007755/1.161, allocations: 199.1 kB / 1.389 GB, free: 7.59 MB / 1.092 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001625/1.162, allocations: 0.8461 MB / 1.39 GB, free: 6.688 MB / 1.092 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.252e-05/1.162, allocations: 45 kB / 1.39 GB, free: 6.645 MB / 1.092 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.932e-05/1.162, allocations: 60 kB / 1.39 GB, free: 6.586 MB / 1.092 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001344/1.164, allocations: 0.7887 MB / 1.391 GB, free: 5.715 MB / 1.092 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.966e-05/1.164, allocations: 4 kB / 1.391 GB, free: 5.711 MB / 1.092 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.578e-05/1.164, allocations: 23.98 kB / 1.391 GB, free: 5.688 MB / 1.092 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.86e-05/1.164, allocations: 16 kB / 1.391 GB, free: 5.672 MB / 1.092 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009792/1.165, allocations: 0.5383 MB / 1.392 GB, free: 5.137 MB / 1.092 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 0.005295/1.17, allocations: 4.603 MB / 1.396 GB, free: 152 kB / 1.092 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008433/1.171, allocations: 402.2 kB / 1.396 GB, free: 15.75 MB / 1.107 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003983/1.171, allocations: 232 kB / 1.397 GB, free: 15.52 MB / 1.107 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003509/1.172, allocations: 202.2 kB / 1.397 GB, free: 15.29 MB / 1.107 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00054/1.172, allocations: 289 kB / 1.397 GB, free: 14.98 MB / 1.107 GB Notification: Performance of pre-optimization done (n=31): time 2.395e-06/1.172, allocations: 0 / 1.397 GB, free: 14.98 MB / 1.107 GB Notification: Performance of matching and sorting (n=31): time 0.001536/1.174, allocations: 0.6322 MB / 1.398 GB, free: 14.35 MB / 1.107 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.378e-05/1.174, allocations: 89.03 kB / 1.398 GB, free: 14.24 MB / 1.107 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00154/1.175, allocations: 1.114 MB / 1.399 GB, free: 13.11 MB / 1.107 GB Notification: Performance of collectPreVariables (initialization): time 6.984e-05/1.176, allocations: 37.7 kB / 1.399 GB, free: 13.07 MB / 1.107 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004713/1.176, allocations: 0.4891 MB / 1.399 GB, free: 12.57 MB / 1.107 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001067/1.176, allocations: 115 kB / 1.4 GB, free: 12.46 MB / 1.107 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001811/1.176, allocations: 114.1 kB / 1.4 GB, free: 12.34 MB / 1.107 GB Notification: Performance of setup shared object (initialization): time 0.0001591/1.176, allocations: 325.9 kB / 1.4 GB, free: 12.02 MB / 1.107 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0004399/1.177, allocations: 218.3 kB / 1.4 GB, free: 11.8 MB / 1.107 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001/1.178, allocations: 0.5213 MB / 1.401 GB, free: 11.14 MB / 1.107 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009754/1.179, allocations: 0.6308 MB / 1.401 GB, free: 10.43 MB / 1.107 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.112e-06/1.179, allocations: 4 kB / 1.401 GB, free: 10.43 MB / 1.107 GB Notification: Performance of matching and sorting (n=54) (initialization): time 0.001426/1.18, allocations: 0.725 MB / 1.402 GB, free: 9.691 MB / 1.107 GB Notification: Performance of prepare postOptimizeDAE: time 4.81e-05/1.18, allocations: 44.34 kB / 1.402 GB, free: 9.645 MB / 1.107 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.025e-05/1.18, allocations: 4 kB / 1.402 GB, free: 9.641 MB / 1.107 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.267e-05/1.18, allocations: 8 kB / 1.402 GB, free: 9.633 MB / 1.107 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000436/1.181, allocations: 107.8 kB / 1.402 GB, free: 9.527 MB / 1.107 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.946e-05/1.181, allocations: 15.92 kB / 1.402 GB, free: 9.512 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006559/1.182, allocations: 71.7 kB / 1.402 GB, free: 9.441 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.843e-05/1.182, allocations: 27.98 kB / 1.402 GB, free: 9.414 MB / 1.107 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007871/1.182, allocations: 0.4966 MB / 1.403 GB, free: 8.914 MB / 1.107 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006452/1.183, allocations: 489.9 kB / 1.403 GB, free: 8.297 MB / 1.107 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008689/1.184, allocations: 0.5528 MB / 1.404 GB, free: 7.664 MB / 1.107 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.685e-06/1.184, allocations: 0 / 1.404 GB, free: 7.664 MB / 1.107 GB Notification: Performance of matching and sorting (n=54) (initialization_lambda0): time 0.001198/1.185, allocations: 0.6541 MB / 1.404 GB, free: 6.996 MB / 1.107 GB Notification: Performance of prepare postOptimizeDAE: time 3.794e-05/1.185, allocations: 34.36 kB / 1.404 GB, free: 6.957 MB / 1.107 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.723e-06/1.185, allocations: 4 kB / 1.404 GB, free: 6.953 MB / 1.107 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.181e-05/1.185, allocations: 12 kB / 1.405 GB, free: 6.941 MB / 1.107 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003905/1.186, allocations: 103.8 kB / 1.405 GB, free: 6.84 MB / 1.107 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.548e-05/1.186, allocations: 11.94 kB / 1.405 GB, free: 6.828 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006168/1.186, allocations: 72.16 kB / 1.405 GB, free: 6.758 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.832e-05/1.186, allocations: 23.94 kB / 1.405 GB, free: 6.734 MB / 1.107 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 24 * Number of states: 0 () * Number of discrete variables: 5 (pulse_p.count,$PRE.pulse_p.count,pulse_p.T_start,$PRE.pulse_p.T_start,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (53): * Single equations (assignments): 52 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002348/1.186, allocations: 228 kB / 1.405 GB, free: 6.504 MB / 1.107 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001603/1.187, allocations: 103.5 kB / 1.405 GB, free: 6.402 MB / 1.107 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009739/1.188, allocations: 491.1 kB / 1.405 GB, free: 5.914 MB / 1.107 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 9.107e-06/1.188, allocations: 7.984 kB / 1.405 GB, free: 5.906 MB / 1.107 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.191e-06/1.188, allocations: 3.938 kB / 1.405 GB, free: 5.902 MB / 1.107 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.22e-06/1.188, allocations: 0 / 1.405 GB, free: 5.902 MB / 1.107 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002355/1.19, allocations: 1.39 MB / 1.407 GB, free: 4.438 MB / 1.107 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.29e-06/1.19, allocations: 8.031 kB / 1.407 GB, free: 4.43 MB / 1.107 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002472/1.19, allocations: 59.95 kB / 1.407 GB, free: 4.371 MB / 1.107 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.831e-05/1.19, allocations: 7.938 kB / 1.407 GB, free: 4.363 MB / 1.107 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.445e-05/1.19, allocations: 8 kB / 1.407 GB, free: 4.355 MB / 1.107 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.068e-05/1.19, allocations: 15.92 kB / 1.407 GB, free: 4.34 MB / 1.107 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.298e-06/1.19, allocations: 4 kB / 1.407 GB, free: 4.336 MB / 1.107 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001068/1.191, allocations: 0.5989 MB / 1.408 GB, free: 3.699 MB / 1.107 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000446/1.192, allocations: 216.3 kB / 1.408 GB, free: 3.469 MB / 1.107 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.846e-05/1.192, allocations: 12 kB / 1.408 GB, free: 3.457 MB / 1.107 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003716/1.192, allocations: 23.97 kB / 1.408 GB, free: 3.434 MB / 1.107 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.358e-05/1.192, allocations: 27.95 kB / 1.408 GB, free: 3.406 MB / 1.107 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.265e-05/1.192, allocations: 8 kB / 1.408 GB, free: 3.398 MB / 1.107 GB Notification: Performance of sorting global known variables: time 0.001116/1.193, allocations: 0.7914 MB / 1.409 GB, free: 2.598 MB / 1.107 GB Notification: Performance of sort global known variables: time 1.21e-07/1.193, allocations: 0 / 1.409 GB, free: 2.598 MB / 1.107 GB Notification: Performance of remove unused functions: time 0.001189/1.195, allocations: 411.5 kB / 1.409 GB, free: 2.195 MB / 1.107 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition1,pulse_p.T_start,pulse_p.count) * Number of discrete states: 1 (pulse_p.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (31): * Single equations (assignments): 29 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0005149/1.195, allocations: 180.2 kB / 1.409 GB, free: 2.02 MB / 1.107 GB Notification: Performance of simCode: created initialization part: time 0.001532/1.197, allocations: 0.7925 MB / 1.41 GB, free: 1.203 MB / 1.107 GB Notification: Performance of simCode: created event and clocks part: time 2.965e-06/1.197, allocations: 0 / 1.41 GB, free: 1.203 MB / 1.107 GB Notification: Performance of simCode: created simulation system equations: time 0.0003869/1.197, allocations: 189.1 kB / 1.41 GB, free: 1.02 MB / 1.107 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001933/1.199, allocations: 456.5 kB / 1.411 GB, free: 0.5742 MB / 1.107 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003222/1.202, allocations: 1.758 MB / 1.412 GB, free: 14.75 MB / 1.123 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009124/1.203, allocations: 1.176 MB / 1.413 GB, free: 13.55 MB / 1.123 GB Notification: Performance of simCode: alias equations: time 0.001071/1.204, allocations: 407.7 kB / 1.414 GB, free: 13.14 MB / 1.123 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001688/1.204, allocations: 75.42 kB / 1.414 GB, free: 13.07 MB / 1.123 GB Notification: Performance of SimCode: time 1.403e-06/1.204, allocations: 0 / 1.414 GB, free: 13.07 MB / 1.123 GB Notification: Performance of Templates: time 0.0351/1.24, allocations: 17.64 MB / 1.431 GB, free: 11.64 MB / 1.139 GB " [Timeout remaining time 299] make -j1 -f Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.makefile [Timeout 300] (rm -f Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe ; mkfifo Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe ; head -c 1048576 < Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe >> ../files/Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.sim & ./Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS > Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe 2>&1) [Timeout 400] diffSimulationResults("Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_10.0.x/Buildings_Fluid_Examples_Performance_PressureDrop_SeriesFlowOptimised.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_10_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 9.420218097046018]