Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "[:1:22-1:33:writable] Warning: Modelica only supports 32-bit signed integers! Transforming: 13743895347 into a real Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0002981/0.0002981, allocations: 0 / 0, free: 0 / 0 " [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 0.0002753/0.0002753, allocations: 0 / 0, free: 0 / 0 " [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 0.09987/0.09987, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.2-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.2-maint.11.x/package.mo): time 0.2099/0.2099, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] Using package Buildings with version 11.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.2-maint.11.x/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: simulate(Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows,startTime=0,stopTime=1.2096e+06,tolerance=1e-06,numberOfIntervals=2500,outputFormat="mat",variableFilter="time|conExt.[0-9,]+..opa.T.[0-9,]+.|conExt.[0-9,]+..win.glaUns.glass_a.T|conExt.[0-9,]+..win.glaUns.glass_b.T|bouConExt.weaBus.TDryBul",fileNamePrefix="Buildings_11_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows",simflags="-abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS") simulate(Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows,startTime=0,stopTime=1.2096e+06,tolerance=1e-06,numberOfIntervals=2500,outputFormat="mat",variableFilter="time|conExt.[0-9,]+..opa.T.[0-9,]+.|conExt.[0-9,]+..win.glaUns.glass_a.T|conExt.[0-9,]+..win.glaUns.glass_b.T|bouConExt.weaBus.TDryBul",fileNamePrefix="Buildings_11_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows",simflags="-abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS") [Timeout 540] "Notification: Performance of FrontEnd - loaded program: time 2.595e-06/2.595e-06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - Absyn->SCode: time 2.541e-05/2.8e-05, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows): time 0.03542/0.03545, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instExpressions: time 0.2561/0.2915, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.updateImplicitVariability: time 0.004387/0.2959, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeComponents: time 0.01101/0.3069, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeBindings: time 0.009926/0.3169, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeClassSections: time 0.01146/0.3283, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.flatten: time 0.0203/0.3486, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.resolveConnections: time 0.007074/0.3557, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFEvalConstants.evaluate: time 0.01933/0.375, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFSimplifyModel.simplify: time 0.01029/0.3853, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFPackage.collectConstants: time 0.002954/0.3883, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.collectFunctions: time 0.00473/0.393, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFScalarize.scalarize: time 0.00585/0.3989, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFVerifyModel.verify: time 0.00767/0.4065, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFConvertDAE.convert: time 0.02098/0.4275, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - DAE generated: time 0.004478/0.432, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd: time 2.815e-06/0.432, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Transformations before backend: time 0.0002772/0.4323, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1247 * Number of variables: 1247 Notification: Performance of Generate backend data structure: time 0.02553/0.4578, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare preOptimizeDAE: time 0.0008205/0.4586, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt normalInlineFunction (simulation): time 0.02109/0.4797, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evaluateParameters (simulation): time 0.01186/0.4916, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0006846/0.4922, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt expandDerOperator (simulation): time 0.001986/0.4942, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt clockPartitioning (simulation): time 0.01228/0.5065, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt findStateOrder (simulation): time 0.0002021/0.5067, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0008946/0.5076, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001325/0.5077, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeEqualRHS (simulation): time 0.005466/0.5132, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.04725/0.5604, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt comSubExp (simulation): time 0.01235/0.5728, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt resolveLoops (simulation): time 0.005703/0.5785, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evalFunc (simulation): time 0.000613/0.5791, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.01082/0.5899, allocations: 0 / 0, free: 0 / 0 Notification: Performance of pre-optimization done (n=374): time 5.383e-05/0.59, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=374): time 0.02321/0.6132, allocations: 0 / 0, free: 0 / 0 Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001981/0.6134, allocations: 0 / 0, free: 0 / 0 Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.01477/0.6282, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectPreVariables (initialization): time 0.001915/0.6301, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialEqns (initialization): time 0.003785/0.6339, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialBindings (initialization): time 0.001978/0.6359, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simplifyInitialFunctions (initialization): time 0.003154/0.639, allocations: 0 / 0, free: 0 / 0 Notification: Performance of setup shared object (initialization): time 3.145e-05/0.639, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization): time 0.002976/0.642, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization): time 0.003413/0.6454, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization): time 0.006309/0.6517, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.312e-05/0.6518, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=563) (initialization): time 0.01336/0.6652, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001145/0.6653, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.04843/0.7137, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 0.09451/0.8082, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0063/0.8145, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008385/0.8229, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007387/0.8303, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001422/0.8317, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.005448/0.8372, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.003946/0.8411, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.007084/0.8482, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 9.26e-05/0.8483, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=563) (initialization_lambda0): time 0.01514/0.8634, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001104/0.8635, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.009441/0.873, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 0.004583/0.8776, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00701/0.8846, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01392/0.8985, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007473/0.906, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001824/0.9078, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 128 * Number of states: 0 () * Number of discrete variables: 47 (weaDat.conTimMin.canRepeatWeatherFile,weaDat.conTim.canRepeatWeatherFile,weaDat.decAng.k,$PRE.weaDat.decAng.k,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.k,$PRE.weaDat.eqnTim.k,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.k,$PRE.weaDat.conTim.k,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.k,$PRE.weaDat.conTimMin.k,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.k,$PRE.weaDat.locTim.k,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,bouConExt.HDifTil[2].incAng.decAng.k,$PRE.bouConExt.HDifTil[2].incAng.decAng.k,bouConExt.HDifTil[2].incAng.decAng.tNext,$PRE.bouConExt.HDifTil[2].incAng.decAng.tNext,bouConExt.HDifTil[1].incAng.decAng.k,$PRE.bouConExt.HDifTil[1].incAng.decAng.k,bouConExt.HDifTil[1].incAng.decAng.tNext,$PRE.bouConExt.HDifTil[1].incAng.decAng.tNext,bouConExt.HDirTil[2].incAng.decAng.k,$PRE.bouConExt.HDirTil[2].incAng.decAng.k,bouConExt.HDirTil[2].incAng.decAng.tNext,$PRE.bouConExt.HDirTil[2].incAng.decAng.tNext,bouConExt.HDirTil[1].incAng.decAng.k,$PRE.bouConExt.HDirTil[1].incAng.decAng.k,bouConExt.HDirTil[1].incAng.decAng.tNext,$PRE.bouConExt.HDirTil[1].incAng.decAng.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8,$whenCondition9) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (489): * Single equations (assignments): 482 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 7 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 4 systems {(1,1,100.0%), (1,1,100.0%), (1,9,100.0%), (1,9,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(4,23), (4,23), (1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.004632/0.9124, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001822/0.9143, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01396/0.9282, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.563e-05/0.9283, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt constantLinearSystem (simulation): time 1.716e-05/0.9283, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.247e-05/0.9283, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02765/0.956, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.05536/1.011, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004715/1.016, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (simulation): time 0.03462/1.051, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001587/1.052, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.007915/1.06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.028e-06/1.06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt symbolicJacobian (simulation): time 0.06402/1.124, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeConstants (simulation): time 0.005661/1.13, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.003694/1.134, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.005182/1.139, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001414/1.14, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0006676/1.141, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sorting global known variables: time 0.008764/1.15, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sort global known variables: time 0.001/1.151, allocations: 0 / 0, free: 0 / 0 Notification: Performance of remove unused functions: time 0.01564/1.166, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 14 (conExt[1].opa.lay[1].T[1],conExt[1].opa.lay[1].T[2],conExt[1].opa.lay[2].T[1],conExt[1].opa.lay[2].T[2],conExt[1].opa.lay[2].T[3],conExt[1].win.capGla.TUns,conExt[1].win.capFra.T,conExt[2].opa.lay[1].T[1],conExt[2].opa.lay[1].T[2],conExt[2].opa.lay[2].T[1],conExt[2].opa.lay[2].T[2],conExt[2].opa.lay[2].T[3],conExt[2].win.capGla.TUns,conExt[2].win.capFra.T) * Number of discrete variables: 27 ($whenCondition9,$whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,bouConExt.HDirTil[1].incAng.decAng.tNext,bouConExt.HDirTil[1].incAng.decAng.k,bouConExt.HDirTil[2].incAng.decAng.tNext,bouConExt.HDirTil[2].incAng.decAng.k,bouConExt.HDifTil[1].incAng.decAng.tNext,bouConExt.HDifTil[1].incAng.decAng.k,bouConExt.HDifTil[2].incAng.decAng.tNext,bouConExt.HDifTil[2].incAng.decAng.k,weaDat.locTim.tNext,weaDat.locTim.k,weaDat.conTimMin.tNext,weaDat.conTimMin.k,weaDat.conTim.tNext,weaDat.conTim.k,weaDat.eqnTim.tNext,weaDat.eqnTim.k,weaDat.decAng.tNext,weaDat.decAng.k) * Number of discrete states: 18 (weaDat.conTimMin.tNext,weaDat.conTimMin.k,weaDat.locTim.tNext,weaDat.locTim.k,weaDat.conTim.tNext,weaDat.conTim.k,weaDat.eqnTim.tNext,weaDat.eqnTim.k,bouConExt.HDirTil[1].incAng.decAng.tNext,bouConExt.HDirTil[1].incAng.decAng.k,bouConExt.HDifTil[1].incAng.decAng.tNext,bouConExt.HDifTil[1].incAng.decAng.k,bouConExt.HDirTil[2].incAng.decAng.tNext,bouConExt.HDirTil[2].incAng.decAng.k,bouConExt.HDifTil[2].incAng.decAng.tNext,bouConExt.HDifTil[2].incAng.decAng.k,weaDat.decAng.tNext,weaDat.decAng.k) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (346): * Single equations (assignments): 321 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 18 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 7 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 4 systems {(1,5,100.0%), (1,5,100.0%), (1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(4,19), (4,19), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.004462/1.171, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created initialization part: time 0.01619/1.187, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created event and clocks part: time 9.658e-06/1.187, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created simulation system equations: time 0.004663/1.192, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.009656/1.201, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02564/1.227, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: some other stuff during SimCode phase: time 0.004266/1.231, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: alias equations: time 0.009005/1.24, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: all other stuff during SimCode phase: time 0.007786/1.248, allocations: 0 / 0, free: 0 / 0 Notification: Performance of SimCode: time 0.000328/1.248, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Templates: time 0.03772/1.286, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 538] diffSimulationResults("Buildings_11_Buildings.ThermalZones.Detailed.Constructions.Examples.ExteriorWallTwoWindows_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_ThermalZones_Detailed_Constructions_Examples_ExteriorWallTwoWindows.csv","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 2.844836574047804]