Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ClaRa_dev_ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/SMArtInt main/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/SMArtInt main/package.mo): time 0.002131/0.002131, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] 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 0.0002045/0.0002045, 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 0.0001896/0.0001896, 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 0.1042/0.1042, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/package.mo): time 0.05118/0.05118, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] Using package ClaRa with version 1.9.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ClaRa main/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) Using package SMArtInt with version 1.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/SMArtInt main/package.mo) Running command: simulate(ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA,startTime=0,stopTime=12000,tolerance=1e-05,numberOfIntervals=2500,outputFormat="mat",variableFilter="Time|hEXvle2vle_L3_1ph_BU_ntu.shell.h|hEXvle2vle_L3_1ph_BU_ntu.shell.p|hEXvle2vle_L3_1ph_BU_ntu.tubes.h|hEXvle2vle_L3_1ph_BU_ntu.tubes.p|hEXvle2vle_L3_1ph_BU_ntu.wall.T_w_a|hEXvle2vle_L3_1ph_BU_ntu.wall.T_w_i",fileNamePrefix="ClaRa_dev_ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA",simflags="-abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS") simulate(ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA,startTime=0,stopTime=12000,tolerance=1e-05,numberOfIntervals=2500,outputFormat="mat",variableFilter="Time|hEXvle2vle_L3_1ph_BU_ntu.shell.h|hEXvle2vle_L3_1ph_BU_ntu.shell.p|hEXvle2vle_L3_1ph_BU_ntu.tubes.h|hEXvle2vle_L3_1ph_BU_ntu.tubes.p|hEXvle2vle_L3_1ph_BU_ntu.wall.T_w_a|hEXvle2vle_L3_1ph_BU_ntu.wall.T_w_i",fileNamePrefix="ClaRa_dev_ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA",simflags="-abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS") [Timeout 1040] "Notification: Performance of FrontEnd - loaded program: time 2.235e-06/2.235e-06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - Absyn->SCode: time 2.34e-05/2.564e-05, allocations: 0 / 0, free: 0 / 0 Notification: TILMedia requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Automatically loaded package TILMedia 1.9.0 ClaRa due to usage. Notification: Performance of NFInst.instantiate(ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA): time 0.04288/0.04291, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instExpressions: time 0.04541/0.08832, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.updateImplicitVariability: time 0.00541/0.09373, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeComponents: time 0.008013/0.1017, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeBindings: time 0.01194/0.1137, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeClassSections: time 0.01381/0.1275, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.flatten: time 0.01567/0.1432, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.resolveConnections: time 0.005746/0.1489, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFEvalConstants.evaluate: time 0.186/0.3349, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFSimplifyModel.simplify: time 0.007055/0.342, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFPackage.collectConstants: time 0.001521/0.3435, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.collectFunctions: time 0.004971/0.3485, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFScalarize.scalarize: time 0.002905/0.3514, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFVerifyModel.verify: time 0.003403/0.3548, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFConvertDAE.convert: time 0.01491/0.3697, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - DAE generated: time 0.001595/0.3713, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd: time 3.387e-06/0.3713, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Transformations before backend: time 8.655e-05/0.3714, 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: 1318 * Number of variables: 1318 Notification: Performance of Generate backend data structure: time 0.01126/0.3826, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare preOptimizeDAE: time 0.0004507/0.3831, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001248/0.3843, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evaluateParameters (simulation): time 0.005882/0.3902, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003142/0.3905, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt expandDerOperator (simulation): time 0.0005131/0.391, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt clockPartitioning (simulation): time 0.01131/0.4023, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt findStateOrder (simulation): time 0.0001328/0.4025, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004163/0.4029, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0002371/0.4031, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeEqualRHS (simulation): time 0.008009/0.4111, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.02419/0.4353, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt comSubExp (simulation): time 0.007406/0.4427, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt resolveLoops (simulation): time 0.001068/0.4438, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evalFunc (simulation): time 0.0004958/0.4443, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001038/0.4444, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt simplifyInStream (simulation): time 0.003066/0.4475, allocations: 0 / 0, free: 0 / 0 Notification: Performance of pre-optimization done (n=712): time 1.968e-05/0.4475, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=712): time 0.01545/0.4629, allocations: 0 / 0, free: 0 / 0 Notification: Performance of inlineWhenForInitialization (initialization): time 0.000131/0.4631, allocations: 0 / 0, free: 0 / 0 Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00472/0.4678, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectPreVariables (initialization): time 0.0004348/0.4682, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialEqns (initialization): time 0.001152/0.4694, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialBindings (initialization): time 0.001705/0.4711, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simplifyInitialFunctions (initialization): time 0.001485/0.4726, allocations: 0 / 0, free: 0 / 0 Notification: Performance of setup shared object (initialization): time 1.762e-05/0.4726, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization): time 0.001192/0.4738, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization): time 0.001978/0.4758, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization): time 0.004315/0.4801, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.609e-05/0.4801, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=993) (initialization): time 0.005347/0.4855, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 7.894e-05/0.4856, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inlineHomotopy (initialization): time 0.0002856/0.4859, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003854/0.4862, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 0.0007503/0.487, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002204/0.4892, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt generateHomotopyComponents (initialization): time 0.0003495/0.4895, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.004807/0.4944, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002724/0.4971, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004611/0.4975, allocations: 0 / 0, free: 0 / 0 Warning: Assuming fixed start value for the following 4 variables: hEXvle2vle_L3_1ph_BU_ntu.tubes.h:VARIABLE(start = hEXvle2vle_L3_1ph_BU_ntu.tubes.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real hEXvle2vle_L3_1ph_BU_ntu.tubes.p:VARIABLE(min = 0.0 start = hEXvle2vle_L3_1ph_BU_ntu.tubes.p_start unit = \"Pa\" fixed = true nominal = 1e5 stateSelect=StateSelect.prefer ) \"System pressure\" type: Real hEXvle2vle_L3_1ph_BU_ntu.shell.h:VARIABLE(start = hEXvle2vle_L3_1ph_BU_ntu.shell.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real hEXvle2vle_L3_1ph_BU_ntu.shell.p:VARIABLE(min = 0.0 start = hEXvle2vle_L3_1ph_BU_ntu.shell.p_start unit = \"Pa\" fixed = true nominal = 1e5 stateSelect=StateSelect.prefer ) \"System pressure\" type: Real Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.002469/0.5, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.002015/0.502, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.003919/0.5059, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.442e-05/0.506, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=993) (initialization_lambda0): time 0.005111/0.5111, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 7.309e-05/0.5112, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0003757/0.5116, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 0.0004673/0.512, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002172/0.5142, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001468/0.5157, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002666/0.5183, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004095/0.5187, allocations: 0 / 0, free: 0 / 0 Warning: Assuming fixed start value for the following 4 variables: hEXvle2vle_L3_1ph_BU_ntu.tubes.h:VARIABLE(start = hEXvle2vle_L3_1ph_BU_ntu.tubes.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real hEXvle2vle_L3_1ph_BU_ntu.tubes.p:VARIABLE(min = 0.0 start = hEXvle2vle_L3_1ph_BU_ntu.tubes.p_start unit = \"Pa\" fixed = true nominal = 1e5 stateSelect=StateSelect.prefer ) \"System pressure\" type: Real hEXvle2vle_L3_1ph_BU_ntu.shell.h:VARIABLE(start = hEXvle2vle_L3_1ph_BU_ntu.shell.h_start unit = \"J/kg\" fixed = true nominal = 1000.0 protected = true ) \"spec. enthalpy state\" type: Real hEXvle2vle_L3_1ph_BU_ntu.shell.p:VARIABLE(min = 0.0 start = hEXvle2vle_L3_1ph_BU_ntu.shell.p_start unit = \"Pa\" fixed = true nominal = 1e5 stateSelect=StateSelect.prefer ) \"System pressure\" type: Real Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 286 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (317): * Single equations (assignments): 294 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 22 * 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 {(3,219)} Notification: Performance of prepare postOptimizeDAE: time 0.001968/0.5207, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0008546/0.5216, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.007196/0.5288, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.166e-05/0.5288, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt constantLinearSystem (simulation): time 1.035e-05/0.5288, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.394e-05/0.5289, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.009019/0.5379, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.0002817/0.5382, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001227/0.5394, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (simulation): time 0.0005549/0.5399, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001898/0.5401, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001171/0.5413, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.715e-06/0.5413, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004474/0.5458, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeConstants (simulation): time 0.001986/0.5478, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001378/0.5491, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.00128/0.5504, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006414/0.5511, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002313/0.5513, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sorting global known variables: time 0.002869/0.5542, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sort global known variables: time 0.0001964/0.5544, allocations: 0 / 0, free: 0 / 0 Notification: Performance of remove unused functions: time 0.007868/0.5622, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 6 (hEXvle2vle_L3_1ph_BU_ntu.tubes.h,hEXvle2vle_L3_1ph_BU_ntu.tubes.p,hEXvle2vle_L3_1ph_BU_ntu.shell.h,hEXvle2vle_L3_1ph_BU_ntu.shell.p,hEXvle2vle_L3_1ph_BU_ntu.wall.T_w_i,hEXvle2vle_L3_1ph_BU_ntu.wall.T_w_a) * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (258): * Single equations (assignments): 202 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 54 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,1,100.0%), (1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.004495/0.5667, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created initialization part: time 0.008424/0.5751, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created event and clocks part: time 6.693e-06/0.5751, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created simulation system equations: time 0.002052/0.5772, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004707/0.5819, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01167/0.5936, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001762/0.5953, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: alias equations: time 0.003012/0.5983, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003892/0.6022, allocations: 0 / 0, free: 0 / 0 Notification: Performance of SimCode: time 0.0001867/0.6024, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Templates: time 0.02076/0.6232, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 1039] diffSimulationResults("ClaRa_dev_ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ClaRa/ReferenceResults/ClaRa.Components.HeatExchangers.Check.Test_HEXvle2vle_L3_1ph_kA.mat","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 800] "" [Timeout remaining time 800] Reference file matches [Calling sys.exit(0), Time elapsed: 1.7956915171816945]