Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_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 0.001875/0.001875, allocations: 113.9 kB / 17.61 MB, free: 4.684 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 0.002518/0.002518, allocations: 185.9 kB / 20.78 MB, free: 1.52 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 1.43/1.43, allocations: 225.6 MB / 249.4 MB, free: 2.98 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.73/2.73, allocations: 476.7 MB / 0.7629 GB, free: 15.17 MB / 0.6075 GB " [Timeout remaining time 177] Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.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_11_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_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.001966/0.001966, allocations: 59.91 kB / 1.107 GB, free: 4.551 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.014/1.016, allocations: 168.7 MB / 1.272 GB, free: 7.895 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised): time 0.2096/1.225, allocations: 162.3 MB / 1.43 GB, free: 14.87 MB / 1.123 GB Notification: Performance of NFInst.instExpressions: time 0.003527/1.229, allocations: 1.78 MB / 1.432 GB, free: 13.43 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003427/1.229, allocations: 10.38 kB / 1.432 GB, free: 13.43 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.0006074/1.23, allocations: 166.2 kB / 1.432 GB, free: 13.29 MB / 1.123 GB Notification: Performance of NFTyping.typeBindings: time 0.001413/1.231, allocations: 0.5457 MB / 1.433 GB, free: 12.88 MB / 1.123 GB Notification: Performance of NFTyping.typeClassSections: time 0.001169/1.232, allocations: 403.9 kB / 1.433 GB, free: 12.6 MB / 1.123 GB Notification: Performance of NFFlatten.flatten: time 0.002958/1.235, allocations: 2.513 MB / 1.436 GB, free: 11.2 MB / 1.123 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001007/1.236, allocations: 0.648 MB / 1.436 GB, free: 10.76 MB / 1.123 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001987/1.238, allocations: 1.048 MB / 1.437 GB, free: 10.2 MB / 1.123 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001153/1.239, allocations: 0.7431 MB / 1.438 GB, free: 9.773 MB / 1.123 GB Notification: Performance of NFPackage.collectConstants: time 0.0001153/1.239, allocations: 54.41 kB / 1.438 GB, free: 9.773 MB / 1.123 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001756/1.241, allocations: 0.7666 MB / 1.439 GB, free: 9.355 MB / 1.123 GB Notification: Performance of NFScalarize.scalarize: time 0.0004336/1.242, allocations: 313.1 kB / 1.439 GB, free: 9.145 MB / 1.123 GB Notification: Performance of NFVerifyModel.verify: time 0.000831/1.242, allocations: 0.5482 MB / 1.44 GB, free: 8.805 MB / 1.123 GB Notification: Performance of NFConvertDAE.convert: time 0.001997/1.244, allocations: 1.411 MB / 1.441 GB, free: 7.391 MB / 1.123 GB Notification: Performance of FrontEnd - DAE generated: time 5.2e-06/1.244, allocations: 0 / 1.441 GB, free: 7.391 MB / 1.123 GB Notification: Performance of FrontEnd: time 1.953e-06/1.244, allocations: 0 / 1.441 GB, free: 7.391 MB / 1.123 GB Notification: Performance of Transformations before backend: time 1.478e-05/1.244, allocations: 0 / 1.441 GB, free: 7.391 MB / 1.123 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 0.002532/1.247, allocations: 1.489 MB / 1.443 GB, free: 5.836 MB / 1.123 GB Notification: Performance of prepare preOptimizeDAE: time 4.424e-05/1.247, allocations: 8.031 kB / 1.443 GB, free: 5.828 MB / 1.123 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0007882/1.248, allocations: 191.1 kB / 1.443 GB, free: 5.641 MB / 1.123 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001463/1.249, allocations: 0.8578 MB / 1.444 GB, free: 4.727 MB / 1.123 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.384e-05/1.249, allocations: 45 kB / 1.444 GB, free: 4.684 MB / 1.123 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001032/1.249, allocations: 60 kB / 1.444 GB, free: 4.625 MB / 1.123 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001314/1.251, allocations: 0.7888 MB / 1.444 GB, free: 3.762 MB / 1.123 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.939e-05/1.251, allocations: 3.938 kB / 1.444 GB, free: 3.758 MB / 1.123 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.061e-05/1.251, allocations: 24 kB / 1.444 GB, free: 3.734 MB / 1.123 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.546e-05/1.251, allocations: 16 kB / 1.445 GB, free: 3.719 MB / 1.123 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009862/1.252, allocations: 0.5305 MB / 1.445 GB, free: 3.188 MB / 1.123 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 0.004957/1.257, allocations: 4.604 MB / 1.45 GB, free: 14.2 MB / 1.139 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007702/1.258, allocations: 410.8 kB / 1.45 GB, free: 13.79 MB / 1.139 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000389/1.258, allocations: 227.1 kB / 1.45 GB, free: 13.57 MB / 1.139 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000322/1.258, allocations: 190.2 kB / 1.45 GB, free: 13.34 MB / 1.139 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0005243/1.259, allocations: 293.1 kB / 1.451 GB, free: 13.04 MB / 1.139 GB Notification: Performance of pre-optimization done (n=31): time 1.813e-06/1.259, allocations: 0 / 1.451 GB, free: 13.04 MB / 1.139 GB Notification: Performance of matching and sorting (n=31): time 0.001411/1.26, allocations: 0.6377 MB / 1.451 GB, free: 12.39 MB / 1.139 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.265e-05/1.26, allocations: 85.05 kB / 1.451 GB, free: 12.29 MB / 1.139 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00143/1.262, allocations: 1.121 MB / 1.452 GB, free: 11.15 MB / 1.139 GB Notification: Performance of collectPreVariables (initialization): time 4.752e-05/1.262, allocations: 41.7 kB / 1.452 GB, free: 11.11 MB / 1.139 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004613/1.262, allocations: 496.8 kB / 1.453 GB, free: 10.61 MB / 1.139 GB Notification: Performance of collectInitialBindings (initialization): time 0.000104/1.262, allocations: 111.1 kB / 1.453 GB, free: 10.5 MB / 1.139 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001772/1.263, allocations: 110.1 kB / 1.453 GB, free: 10.39 MB / 1.139 GB Notification: Performance of setup shared object (initialization): time 0.0001603/1.263, allocations: 329.9 kB / 1.453 GB, free: 10.06 MB / 1.139 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003943/1.263, allocations: 214.4 kB / 1.454 GB, free: 9.852 MB / 1.139 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006953/1.264, allocations: 0.5135 MB / 1.454 GB, free: 9.199 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0009771/1.265, allocations: 0.6385 MB / 1.455 GB, free: 8.48 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.757e-06/1.265, allocations: 0 / 1.455 GB, free: 8.48 MB / 1.139 GB Notification: Performance of matching and sorting (n=54) (initialization): time 0.001264/1.266, allocations: 0.7256 MB / 1.455 GB, free: 7.742 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 4.79e-05/1.266, allocations: 33.7 kB / 1.456 GB, free: 7.703 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.125e-05/1.266, allocations: 4 kB / 1.456 GB, free: 7.699 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.66e-05/1.266, allocations: 8 kB / 1.456 GB, free: 7.691 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004528/1.267, allocations: 112.2 kB / 1.456 GB, free: 7.582 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.68e-05/1.267, allocations: 15.94 kB / 1.456 GB, free: 7.566 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005699/1.267, allocations: 75.62 kB / 1.456 GB, free: 7.492 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.369e-05/1.267, allocations: 24 kB / 1.456 GB, free: 7.469 MB / 1.139 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0007208/1.268, allocations: 0.4966 MB / 1.456 GB, free: 6.969 MB / 1.139 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006347/1.269, allocations: 497.8 kB / 1.457 GB, free: 6.352 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008197/1.269, allocations: 0.5528 MB / 1.457 GB, free: 5.719 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.264e-06/1.269, allocations: 0 / 1.457 GB, free: 5.719 MB / 1.139 GB Notification: Performance of matching and sorting (n=54) (initialization_lambda0): time 0.001074/1.27, allocations: 0.6547 MB / 1.458 GB, free: 5.051 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 3.182e-05/1.27, allocations: 35.89 kB / 1.458 GB, free: 5.012 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.097e-06/1.27, allocations: 11.98 kB / 1.458 GB, free: 5 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 9.557e-06/1.27, allocations: 8 kB / 1.458 GB, free: 4.992 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000357/1.271, allocations: 103.8 kB / 1.458 GB, free: 4.891 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.29e-05/1.271, allocations: 12.05 kB / 1.458 GB, free: 4.879 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005503/1.271, allocations: 76.09 kB / 1.458 GB, free: 4.805 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.07e-05/1.271, allocations: 20 kB / 1.458 GB, free: 4.785 MB / 1.139 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 0.0001918/1.272, allocations: 216.1 kB / 1.458 GB, free: 4.566 MB / 1.139 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001247/1.272, allocations: 103.3 kB / 1.458 GB, free: 4.465 MB / 1.139 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0009352/1.273, allocations: 0.4911 MB / 1.459 GB, free: 3.969 MB / 1.139 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.073e-06/1.273, allocations: 4 kB / 1.459 GB, free: 3.965 MB / 1.139 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.891e-06/1.273, allocations: 4 kB / 1.459 GB, free: 3.961 MB / 1.139 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.827e-06/1.273, allocations: 3.984 kB / 1.459 GB, free: 3.957 MB / 1.139 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002165/1.275, allocations: 1.385 MB / 1.46 GB, free: 2.496 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.969e-06/1.275, allocations: 4 kB / 1.46 GB, free: 2.492 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002399/1.275, allocations: 63.89 kB / 1.46 GB, free: 2.43 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.625e-06/1.275, allocations: 7.938 kB / 1.46 GB, free: 2.422 MB / 1.139 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.414e-05/1.275, allocations: 8.188 kB / 1.46 GB, free: 2.414 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.646e-06/1.275, allocations: 7.938 kB / 1.46 GB, free: 2.406 MB / 1.139 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.043e-06/1.275, allocations: 3.938 kB / 1.46 GB, free: 2.402 MB / 1.139 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008791/1.276, allocations: 0.6146 MB / 1.461 GB, free: 1.75 MB / 1.139 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002934/1.276, allocations: 216.4 kB / 1.461 GB, free: 1.52 MB / 1.139 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001044/1.276, allocations: 11.98 kB / 1.461 GB, free: 1.508 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003696/1.277, allocations: 15.98 kB / 1.461 GB, free: 1.492 MB / 1.139 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.953e-05/1.277, allocations: 27.97 kB / 1.461 GB, free: 1.465 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.575e-05/1.277, allocations: 15.98 kB / 1.461 GB, free: 1.449 MB / 1.139 GB Notification: Performance of sorting global known variables: time 0.001022/1.278, allocations: 0.7875 MB / 1.462 GB, free: 0.6523 MB / 1.139 GB Notification: Performance of sort global known variables: time 8e-08/1.278, allocations: 0 / 1.462 GB, free: 0.6523 MB / 1.139 GB Notification: Performance of remove unused functions: time 0.001055/1.279, allocations: 419.4 kB / 1.462 GB, free: 248 kB / 1.139 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 0.000444/1.279, allocations: 172.8 kB / 1.463 GB, free: 72 kB / 1.139 GB Notification: Performance of simCode: created initialization part: time 0.001398/1.281, allocations: 0.7789 MB / 1.463 GB, free: 15.27 MB / 1.154 GB Notification: Performance of simCode: created event and clocks part: time 2.304e-06/1.281, allocations: 0 / 1.463 GB, free: 15.27 MB / 1.154 GB Notification: Performance of simCode: created simulation system equations: time 0.0003759/1.281, allocations: 202 kB / 1.464 GB, free: 15.07 MB / 1.154 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001758/1.283, allocations: 464.8 kB / 1.464 GB, free: 14.62 MB / 1.154 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002887/1.286, allocations: 1.757 MB / 1.466 GB, free: 12.8 MB / 1.154 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009948/1.287, allocations: 1.18 MB / 1.467 GB, free: 11.59 MB / 1.154 GB Notification: Performance of simCode: alias equations: time 0.0009554/1.288, allocations: 403.7 kB / 1.467 GB, free: 11.2 MB / 1.154 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001678/1.288, allocations: 75.42 kB / 1.467 GB, free: 11.12 MB / 1.154 GB Notification: Performance of SimCode: time 6.22e-07/1.288, allocations: 3.938 kB / 1.467 GB, free: 11.12 MB / 1.154 GB Notification: Performance of Templates: time 0.03251/1.321, allocations: 17.49 MB / 1.484 GB, free: 9.82 MB / 1.17 GB " [Timeout remaining time 299] make -j1 -f Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.makefile [Timeout 300] (rm -f Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe ; mkfifo Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe >> ../files/Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.sim & ./Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised.pipe 2>&1) [Timeout 400] diffSimulationResults("Buildings_11_Buildings.Fluid.Examples.Performance.PressureDrop.SeriesFlowOptimised_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_Examples_Performance_PressureDrop_SeriesFlowOptimised.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_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: 9.63655139412731]