Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0009601/0.0009601, allocations: 81.95 kB / 21.44 MB, free: 3.059 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.0009586/0.0009586, allocations: 170.8 kB / 24.84 MB, free: 8.863 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 0.9053/0.9053, allocations: 177.2 MB / 205.3 MB, free: 5.508 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo): time 0.6561/0.6561, allocations: 115 MB / 376.8 MB, free: 7.523 MB / 346.7 MB " [Timeout remaining time 179] Using package IBPSA with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/IBPSA master/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo) Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: translateModel(IBPSA.Fluid.Interfaces.Examples.ConservationEquation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation") translateModel(IBPSA.Fluid.Interfaces.Examples.ConservationEquation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.024e-06/2.024e-06, allocations: 0 / 482.8 MB, free: 11.67 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.429e-05/2.631e-05, allocations: 2.312 kB / 482.8 MB, free: 11.67 MB / 410.7 MB Notification: Performance of NFInst.instantiate(IBPSA.Fluid.Interfaces.Examples.ConservationEquation): time 0.008931/0.008957, allocations: 8.23 MB / 491 MB, free: 6.074 MB / 410.7 MB Notification: Performance of NFInst.instExpressions: time 0.005229/0.01419, allocations: 4.49 MB / 495.5 MB, free: 3.113 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004849/0.01467, allocations: 37.72 kB / 495.5 MB, free: 3.094 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0004656/0.01514, allocations: 213.1 kB / 495.7 MB, free: 2.988 MB / 410.7 MB Notification: Performance of NFTyping.typeBindings: time 0.001267/0.0164, allocations: 0.75 MB / 496.5 MB, free: 2.555 MB / 410.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.002051/0.01846, allocations: 1.256 MB / 497.7 MB, free: 1.961 MB / 410.7 MB Notification: Performance of NFFlatten.flatten: time 0.001746/0.0202, allocations: 1.791 MB / 499.5 MB, free: 1.141 MB / 410.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0005592/0.02076, allocations: 462.2 kB / 500 MB, free: 0.8555 MB / 410.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001434/0.02219, allocations: 0.9157 MB / 0.4892 GB, free: 0.5234 MB / 410.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0006014/0.0228, allocations: 457.9 kB / 0.4896 GB, free: 392 kB / 410.7 MB Notification: Performance of NFPackage.collectConstants: time 7.125e-05/0.02287, allocations: 43.81 kB / 0.4896 GB, free: 392 kB / 410.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001228/0.02409, allocations: 0.7929 MB / 0.4904 GB, free: 184 kB / 410.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0001416/0.02424, allocations: 160.8 kB / 0.4906 GB, free: 88 kB / 410.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0002327/0.02447, allocations: 231.4 kB / 0.4908 GB, free: 0 / 410.7 MB Notification: Performance of NFConvertDAE.convert: time 0.00147/0.02594, allocations: 1.029 MB / 0.4918 GB, free: 15.61 MB / 426.7 MB Notification: Performance of FrontEnd - DAE generated: time 4.599e-06/0.02594, allocations: 1.562 kB / 0.4918 GB, free: 15.61 MB / 426.7 MB Notification: Performance of FrontEnd: time 1.543e-06/0.02595, allocations: 0 / 0.4918 GB, free: 15.61 MB / 426.7 MB Notification: Performance of Transformations before backend: time 9.398e-06/0.02595, allocations: 0.8438 kB / 0.4918 GB, free: 15.61 MB / 426.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 92 * Number of variables: 92 Notification: Performance of Generate backend data structure: time 0.001292/0.02725, allocations: 1.15 MB / 0.4929 GB, free: 14.73 MB / 426.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.544e-05/0.02728, allocations: 9.531 kB / 0.4929 GB, free: 14.73 MB / 426.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005164/0.0278, allocations: 206.3 kB / 0.4931 GB, free: 14.66 MB / 426.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006578/0.02846, allocations: 0.4992 MB / 0.4936 GB, free: 14.36 MB / 426.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.283e-05/0.02849, allocations: 32.5 kB / 0.4936 GB, free: 14.35 MB / 426.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 6.459e-05/0.02855, allocations: 51.89 kB / 0.4937 GB, free: 14.33 MB / 426.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005803/0.02913, allocations: 0.4883 MB / 0.4942 GB, free: 14 MB / 426.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 1.374e-05/0.02915, allocations: 1.312 kB / 0.4942 GB, free: 14 MB / 426.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.295e-05/0.02918, allocations: 16.09 kB / 0.4942 GB, free: 13.99 MB / 426.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.606e-05/0.02921, allocations: 10.48 kB / 0.4942 GB, free: 13.99 MB / 426.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002472/0.02945, allocations: 172.5 kB / 0.4944 GB, free: 13.95 MB / 426.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001722/0.03118, allocations: 1.571 MB / 0.4959 GB, free: 12.82 MB / 426.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0003656/0.03154, allocations: 197.5 kB / 0.4961 GB, free: 12.73 MB / 426.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.000124/0.03167, allocations: 111.3 kB / 0.4962 GB, free: 12.68 MB / 426.7 MB Notification: Performance of preOpt evalFunc (simulation): time 8.28e-05/0.03175, allocations: 22.59 kB / 0.4962 GB, free: 12.68 MB / 426.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002953/0.03204, allocations: 320.1 kB / 0.4965 GB, free: 12.41 MB / 426.7 MB Notification: Performance of pre-optimization done (n=33): time 1.984e-06/0.03205, allocations: 3.938 kB / 0.4965 GB, free: 12.41 MB / 426.7 MB Notification: Performance of matching and sorting (n=33): time 0.0009572/0.033, allocations: 0.5103 MB / 0.497 GB, free: 12.18 MB / 426.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.704e-05/0.03304, allocations: 89.91 kB / 0.4971 GB, free: 12.07 MB / 426.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003909/0.03343, allocations: 0.5272 MB / 0.4976 GB, free: 11.61 MB / 426.7 MB Notification: Performance of collectPreVariables (initialization): time 3.497e-05/0.03347, allocations: 34.45 kB / 0.4976 GB, free: 11.57 MB / 426.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0001915/0.03366, allocations: 361.1 kB / 0.498 GB, free: 11.23 MB / 426.7 MB Notification: Performance of collectInitialBindings (initialization): time 7.535e-05/0.03373, allocations: 119.8 kB / 0.4981 GB, free: 11.12 MB / 426.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001103/0.03384, allocations: 108.2 kB / 0.4982 GB, free: 11.02 MB / 426.7 MB Notification: Performance of setup shared object (initialization): time 0.0001629/0.03401, allocations: 0.5491 MB / 0.4987 GB, free: 10.48 MB / 426.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001059/0.03411, allocations: 103.8 kB / 0.4988 GB, free: 10.39 MB / 426.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002736/0.03439, allocations: 0.539 MB / 0.4994 GB, free: 9.699 MB / 426.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003183/0.0347, allocations: 456.6 kB / 0.4998 GB, free: 9.156 MB / 426.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.845e-06/0.03471, allocations: 4 kB / 0.4998 GB, free: 9.152 MB / 426.7 MB Notification: Performance of matching and sorting (n=60) (initialization): time 0.0005821/0.03529, allocations: 0.5164 MB / 0.5003 GB, free: 8.66 MB / 426.7 MB Notification: Performance of prepare postOptimizeDAE: time 3.554e-05/0.03532, allocations: 45.92 kB / 0.5004 GB, free: 8.613 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.333e-06/0.03533, allocations: 4.797 kB / 0.5004 GB, free: 8.609 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002535/0.03559, allocations: 98.34 kB / 0.5005 GB, free: 8.531 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000211/0.0358, allocations: 101.1 kB / 0.5006 GB, free: 8.449 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0003372/0.03613, allocations: 0.8417 MB / 0.5014 GB, free: 7.586 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002145/0.03635, allocations: 64.66 kB / 0.5014 GB, free: 7.527 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.951e-05/0.03638, allocations: 24.08 kB / 0.5015 GB, free: 7.508 MB / 426.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0001637/0.03654, allocations: 223.8 kB / 0.5017 GB, free: 7.293 MB / 426.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002464/0.03679, allocations: 0.539 MB / 0.5022 GB, free: 6.605 MB / 426.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0002973/0.03708, allocations: 449.3 kB / 0.5026 GB, free: 6.066 MB / 426.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.653e-06/0.03709, allocations: 0.7188 kB / 0.5026 GB, free: 6.066 MB / 426.7 MB Notification: Performance of matching and sorting (n=60) (initialization_lambda0): time 0.0004872/0.03757, allocations: 0.5098 MB / 0.5031 GB, free: 5.574 MB / 426.7 MB Notification: Performance of prepare postOptimizeDAE: time 2.304e-05/0.0376, allocations: 36.61 kB / 0.5032 GB, free: 5.535 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.681e-06/0.0376, allocations: 8.562 kB / 0.5032 GB, free: 5.527 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0001027/0.03771, allocations: 51.38 kB / 0.5032 GB, free: 5.48 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001998/0.0379, allocations: 106.8 kB / 0.5033 GB, free: 5.391 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001101/0.03901, allocations: 2.091 MB / 0.5054 GB, free: 3.234 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002202/0.03923, allocations: 60.44 kB / 0.5054 GB, free: 3.18 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.107e-05/0.03926, allocations: 25.59 kB / 0.5054 GB, free: 3.156 MB / 426.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 25 * Number of states: 0 () * Number of discrete variables: 7 (QSen_flow.nextEventScaled,QSen_flow.nextEvent,$PRE.QSen_flow.nextEvent,QSen_flow.last,QSen_flow.b,QSen_flow.a,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (50): * Single equations (assignments): 48 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,5)} Notification: Performance of prepare postOptimizeDAE: time 0.0001735/0.03943, allocations: 341.4 kB / 0.5058 GB, free: 2.812 MB / 426.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.212e-05/0.03951, allocations: 75.58 kB / 0.5058 GB, free: 2.738 MB / 426.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005693/0.04008, allocations: 417.7 kB / 0.5062 GB, free: 2.359 MB / 426.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.554e-06/0.04009, allocations: 8.5 kB / 0.5062 GB, free: 2.352 MB / 426.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.869e-06/0.04009, allocations: 4.859 kB / 0.5063 GB, free: 2.348 MB / 426.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0004533/0.04055, allocations: 0.5783 MB / 0.5068 GB, free: 1.715 MB / 426.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001082/0.04163, allocations: 0.9021 MB / 0.5077 GB, free: 0.8555 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.136e-06/0.04163, allocations: 0 / 0.5077 GB, free: 0.8555 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001672/0.0418, allocations: 61.91 kB / 0.5078 GB, free: 0.8047 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001199/0.04192, allocations: 51.97 kB / 0.5078 GB, free: 0.7578 MB / 426.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.42e-05/0.04194, allocations: 14.3 kB / 0.5078 GB, free: 0.7461 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0003175/0.04226, allocations: 0.8158 MB / 0.5086 GB, free: 15.91 MB / 442.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.617e-06/0.04227, allocations: 4.641 kB / 0.5086 GB, free: 15.9 MB / 442.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0006551/0.04292, allocations: 0.6707 MB / 0.5093 GB, free: 15.22 MB / 442.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0001512/0.04307, allocations: 114.2 kB / 0.5094 GB, free: 15.12 MB / 442.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.67e-05/0.04312, allocations: 12.45 kB / 0.5094 GB, free: 15.11 MB / 442.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0002062/0.04332, allocations: 29.66 kB / 0.5094 GB, free: 15.09 MB / 442.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.493e-05/0.04339, allocations: 22.27 kB / 0.5094 GB, free: 15.08 MB / 442.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.218e-05/0.04342, allocations: 20.62 kB / 0.5095 GB, free: 15.06 MB / 442.7 MB Notification: Performance of sorting global known variables: time 0.0002549/0.04368, allocations: 327.2 kB / 0.5098 GB, free: 14.79 MB / 442.7 MB Notification: Performance of sort global known variables: time 5e-08/0.04368, allocations: 0 / 0.5098 GB, free: 14.79 MB / 442.7 MB Notification: Performance of remove unused functions: time 0.0007176/0.04439, allocations: 350.7 kB / 0.5101 GB, free: 14.45 MB / 442.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 1 (dyn.U) * Number of discrete variables: 6 ($whenCondition1,QSen_flow.a,QSen_flow.b,QSen_flow.last,QSen_flow.nextEvent,QSen_flow.nextEventScaled) * Number of discrete states: 6 (QSen_flow.nextEvent,QSen_flow.last,QSen_flow.nextEventScaled,QSen_flow.b,QSen_flow.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (26): * Single equations (assignments): 22 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,4)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003139/0.04471, allocations: 225.5 kB / 0.5103 GB, free: 14.24 MB / 442.7 MB Notification: Performance of simCode: created initialization part: time 0.000804/0.04551, allocations: 0.8201 MB / 0.5111 GB, free: 13.43 MB / 442.7 MB Notification: Performance of simCode: created event and clocks part: time 1.764e-06/0.04551, allocations: 0 / 0.5111 GB, free: 13.43 MB / 442.7 MB Notification: Performance of simCode: created simulation system equations: time 0.0001921/0.04571, allocations: 213 kB / 0.5113 GB, free: 13.22 MB / 442.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0006162/0.04632, allocations: 220.3 kB / 0.5115 GB, free: 13.06 MB / 442.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001312/0.04763, allocations: 1.044 MB / 0.5126 GB, free: 12.04 MB / 442.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 9.958e-05/0.04773, allocations: 141.9 kB / 0.5127 GB, free: 11.91 MB / 442.7 MB Notification: Performance of simCode: alias equations: time 0.0002544/0.04799, allocations: 107.7 kB / 0.5128 GB, free: 11.83 MB / 442.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003968/0.04839, allocations: 286.3 kB / 0.5131 GB, free: 11.6 MB / 442.7 MB Notification: Performance of SimCode: time 7.21e-07/0.04839, allocations: 3.938 kB / 0.5131 GB, free: 11.6 MB / 442.7 MB Notification: Performance of Templates: time 0.01295/0.06134, allocations: 11.86 MB / 0.5247 GB, free: 20 kB / 442.7 MB " [Timeout remaining time 660] make -j1 -f IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.makefile [Timeout 660] (rm -f IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.pipe ; mkfifo IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.pipe ; head -c 1048576 < IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.pipe >> ../files/IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.sim & ./IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation -abortSlowSimulation -alarm=240 -lv LOG_STATS > IBPSA_latest_IBPSA.Fluid.Interfaces.Examples.ConservationEquation.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 3.6727867950685322]