Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.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 0.001563/0.001563, allocations: 112.2 kB / 21.22 MB, free: 0.7305 MB / 14.72 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 0.002125/0.002125, allocations: 212.2 kB / 24.53 MB, free: 4.07 MB / 14.72 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 1.432/1.432, allocations: 230.6 MB / 258.3 MB, free: 8.02 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.221/0.221, allocations: 44.92 MB / 359.6 MB, free: 6.273 MB / 286.1 MB " [Timeout remaining time 180] Using package ModelicaTest with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/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: "" <> buildModelFMU(ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir",fmuType="cs",version="2.0",platforms={"static"}) [Timeout 660] "Notification: ModelicaTest 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: Performance of FrontEnd - loaded program: time 0.002583/0.002583, allocations: 59.89 kB / 0.4939 GB, free: 10.71 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3814/0.384, allocations: 65.48 MB / 0.5578 GB, free: 7.531 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir): time 0.5748/0.9588, allocations: 195 MB / 0.7482 GB, free: 1.75 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.00857/0.9673, allocations: 7.524 MB / 0.7556 GB, free: 1.691 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0007948/0.9681, allocations: 26.97 kB / 0.7556 GB, free: 1.691 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001115/0.9692, allocations: 454.7 kB / 0.756 GB, free: 1.684 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.00563/0.9749, allocations: 2.424 MB / 0.7584 GB, free: 1.586 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.005459/0.9803, allocations: 2.355 MB / 0.7607 GB, free: 1.523 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.002464/0.9828, allocations: 2.223 MB / 0.7629 GB, free: 1.512 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006891/0.9835, allocations: 0.5162 MB / 0.7634 GB, free: 1.473 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003744/0.9872, allocations: 1.869 MB / 0.7652 GB, free: 1.449 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001683/0.9889, allocations: 0.9212 MB / 0.7661 GB, free: 1.449 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.0003134/0.9892, allocations: 93.22 kB / 0.7662 GB, free: 1.449 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.009179/0.9984, allocations: 5.465 MB / 0.7715 GB, free: 1.398 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0007187/0.9991, allocations: 437.8 kB / 0.772 GB, free: 1.395 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0008816/1, allocations: 0.5313 MB / 0.7725 GB, free: 1.395 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.008477/1.008, allocations: 3.851 MB / 0.7762 GB, free: 1.18 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 7.343e-06/1.008, allocations: 1 kB / 0.7762 GB, free: 1.18 MB / 0.5606 GB Notification: Performance of FrontEnd: time 2.114e-06/1.008, allocations: 0 / 0.7762 GB, free: 1.18 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 2.692e-05/1.009, allocations: 0 / 0.7762 GB, free: 1.18 MB / 0.5606 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 186 * Number of variables: 186 Notification: Performance of Generate backend data structure: time 0.00479/1.013, allocations: 1.7 MB / 0.7779 GB, free: 16.33 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 4.436e-05/1.013, allocations: 9.656 kB / 0.7779 GB, free: 16.33 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 3.24e-05/1.013, allocations: 20.03 kB / 0.7779 GB, free: 16.32 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001659/1.014, allocations: 131.7 kB / 0.7781 GB, free: 16.29 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004254/1.014, allocations: 109.4 kB / 0.7782 GB, free: 16.24 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00108/1.015, allocations: 0.5588 MB / 0.7787 GB, free: 16.02 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001567/1.015, allocations: 173.8 kB / 0.7789 GB, free: 15.9 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.000121/1.015, allocations: 78.02 kB / 0.7789 GB, free: 15.89 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001779/1.017, allocations: 1.157 MB / 0.7801 GB, free: 15.71 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.65e-05/1.017, allocations: 3.984 kB / 0.7801 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.585e-05/1.017, allocations: 34.14 kB / 0.7801 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 9.167e-05/1.017, allocations: 61.05 kB / 0.7802 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001916/1.019, allocations: 1.165 MB / 0.7813 GB, free: 15.69 MB / 0.5762 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 0.007517/1.027, allocations: 4.923 MB / 0.7861 GB, free: 13.09 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001613/1.028, allocations: 0.79 MB / 0.7869 GB, free: 13.05 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005771/1.029, allocations: 411.8 kB / 0.7873 GB, free: 13.04 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0006271/1.03, allocations: 217.4 kB / 0.7875 GB, free: 13.04 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.139e-05/1.03, allocations: 44.44 kB / 0.7875 GB, free: 13 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=70): time 2.305e-06/1.03, allocations: 0 / 0.7875 GB, free: 13 MB / 0.5762 GB Notification: Performance of matching and sorting (n=82): time 0.01296/1.043, allocations: 3.946 MB / 0.7914 GB, free: 12.59 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.392e-05/1.043, allocations: 115 kB / 0.7915 GB, free: 12.47 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0007698/1.043, allocations: 0.6651 MB / 0.7921 GB, free: 12.33 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001003/1.044, allocations: 45.7 kB / 0.7922 GB, free: 12.3 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002803/1.044, allocations: 392.5 kB / 0.7926 GB, free: 12.09 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002605/1.044, allocations: 304.3 kB / 0.7928 GB, free: 11.9 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002955/1.044, allocations: 199.6 kB / 0.793 GB, free: 11.88 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0001935/1.045, allocations: 391.1 kB / 0.7934 GB, free: 11.57 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008879/1.045, allocations: 495.6 kB / 0.7939 GB, free: 11.56 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001125/1.047, allocations: 0.7547 MB / 0.7946 GB, free: 11.26 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002171/1.049, allocations: 1.285 MB / 0.7959 GB, free: 10.97 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.43e-06/1.049, allocations: 1.719 kB / 0.7959 GB, free: 10.97 MB / 0.5762 GB Notification: Performance of matching and sorting (n=124) (initialization): time 0.003408/1.052, allocations: 1.662 MB / 0.7975 GB, free: 10.7 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.017e-05/1.052, allocations: 8.281 kB / 0.7975 GB, free: 10.7 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.389e-05/1.052, allocations: 8.812 kB / 0.7975 GB, free: 10.7 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.007005/1.059, allocations: 1.306 MB / 0.7988 GB, free: 10.32 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006556/1.06, allocations: 158.6 kB / 0.7989 GB, free: 10.3 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002711/1.063, allocations: 1.536 MB / 0.8004 GB, free: 9.605 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009584/1.064, allocations: 52.03 kB / 0.8005 GB, free: 9.598 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001176/1.064, allocations: 49.2 kB / 0.8005 GB, free: 9.594 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 35 * Number of states: 0 () * Number of discrete variables: 4 (volume.regularFlow[1],volume.regularFlow[2],volume.inFlow[2],volume.inFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (89): * Single equations (assignments): 88 * Array equations: 0 * Algorithm blocks: 0 * 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 {(3,33)} Notification: Performance of prepare postOptimizeDAE: time 0.0005751/1.064, allocations: 308.4 kB / 0.8008 GB, free: 9.441 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002245/1.064, allocations: 89.7 kB / 0.8009 GB, free: 9.395 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003211/1.068, allocations: 1.675 MB / 0.8026 GB, free: 8.941 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.136e-05/1.068, allocations: 11.09 kB / 0.8026 GB, free: 8.941 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.56e-06/1.068, allocations: 0 / 0.8026 GB, free: 8.941 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.567e-05/1.068, allocations: 7.969 kB / 0.8026 GB, free: 8.934 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004454/1.072, allocations: 2.528 MB / 0.805 GB, free: 8.105 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.041e-06/1.072, allocations: 2.5 kB / 0.805 GB, free: 8.105 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001278/1.073, allocations: 256.4 kB / 0.8053 GB, free: 8.055 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001727/1.075, allocations: 379.2 kB / 0.8056 GB, free: 7.883 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.074e-05/1.075, allocations: 31.75 kB / 0.8057 GB, free: 7.867 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.00292/1.078, allocations: 2.258 MB / 0.8079 GB, free: 5.656 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.178e-06/1.078, allocations: 3.938 kB / 0.8079 GB, free: 5.652 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.004101/1.082, allocations: 2.033 MB / 0.8099 GB, free: 4.191 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006564/1.083, allocations: 224.7 kB / 0.8101 GB, free: 4.031 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001607/1.083, allocations: 25.14 kB / 0.8101 GB, free: 4.02 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007884/1.084, allocations: 49.14 kB / 0.8102 GB, free: 3.984 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001726/1.084, allocations: 71.28 kB / 0.8102 GB, free: 3.926 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001164/1.084, allocations: 45.47 kB / 0.8103 GB, free: 3.891 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0007278/1.085, allocations: 0.5008 MB / 0.8108 GB, free: 3.512 MB / 0.5762 GB Notification: Performance of sort global known variables: time 8e-08/1.085, allocations: 0 / 0.8108 GB, free: 3.512 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.002371/1.087, allocations: 0.6891 MB / 0.8114 GB, free: 2.883 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 3 (volume.medium.p,volume.medium.Xi[1],volume.medium.T) * 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 (82): * Single equations (assignments): 78 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems 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 {(2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.006487/1.094, allocations: 3.3 MB / 0.8147 GB, free: 52 kB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002998/1.097, allocations: 1.185 MB / 0.8158 GB, free: 14.89 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 9.006e-06/1.097, allocations: 7.938 kB / 0.8158 GB, free: 14.88 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.001876/1.099, allocations: 0.6931 MB / 0.8165 GB, free: 14.21 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003058/1.102, allocations: 0.5109 MB / 0.817 GB, free: 13.71 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02009/1.122, allocations: 9.691 MB / 0.8265 GB, free: 3.707 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009142/1.123, allocations: 1.043 MB / 0.8275 GB, free: 2.633 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.001255/1.124, allocations: 371 kB / 0.8278 GB, free: 2.277 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007292/1.125, allocations: 339.3 kB / 0.8282 GB, free: 1.945 MB / 0.5919 GB Notification: Performance of SimCode: time 1.473e-06/1.125, allocations: 1.531 kB / 0.8282 GB, free: 1.945 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.09547/1.22, allocations: 45.03 MB / 0.8721 GB, free: 5.254 MB / 0.6387 GB Notification: Performance of buildModelFMU: Generate platform static: time 15/16.22, allocations: 8.062 kB / 0.8721 GB, free: 5.246 MB / 0.6387 GB " [Timeout remaining time 644] (rm -f ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe ; mkfifo ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe ; head -c 1048576 < ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe >> ../files/ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir_res.mat --tempDir=temp_ModelicaTest_4_0_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir_fmu --startTime=0 --stopTime=1.01 --stepSize=0.000201919 --timeout=50 --tolerance=1e-06 ModelicaTest_4_0_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir.fmu > ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe 2>&1) [Timeout 52.5] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/Media/TestsWithFluid/MediaTestModels/Air/MoistAir/MoistAir.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 20.214267807023134]