Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.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 0.001368/0.001368, allocations: 100.3 kB / 19.69 MB, free: 1.805 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 0.001441/0.001441, allocations: 209.9 kB / 22.99 MB, free: 4.605 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.489/1.489, allocations: 207.7 MB / 233.8 MB, free: 9.797 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo): time 0.2253/0.2253, allocations: 44.26 MB / 330.3 MB, free: 9.316 MB / 270.1 MB " [Timeout remaining time 180] Using package ModelicaTest with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 3.2.3+maint.om/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+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.IdealGases.Air,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_Air",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air,fileNamePrefix="ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_Air",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Modelica requested package Complex of version 3.2.3. Complex 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002225/0.002225, allocations: 71.89 kB / 467.5 MB, free: 4.348 MB / 334.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1243/0.1265, allocations: 61.04 MB / 0.5162 GB, free: 7.184 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air): time 0.4562/0.5827, allocations: 155.7 MB / 0.6682 GB, free: 6.512 MB / 0.4981 GB Notification: Performance of NFInst.instExpressions: time 0.01154/0.5943, allocations: 7.543 MB / 0.6756 GB, free: 14.95 MB / 0.5137 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006732/0.5949, allocations: 23.75 kB / 0.6756 GB, free: 14.93 MB / 0.5137 GB Notification: Performance of NFTyping.typeComponents: time 0.0009777/0.5959, allocations: 306 kB / 0.6759 GB, free: 14.63 MB / 0.5137 GB Notification: Performance of NFTyping.typeBindings: time 0.00391/0.5998, allocations: 1.514 MB / 0.6773 GB, free: 13.12 MB / 0.5137 GB Notification: Performance of NFTyping.typeClassSections: time 0.003078/0.6029, allocations: 1.178 MB / 0.6785 GB, free: 11.94 MB / 0.5137 GB Notification: Performance of NFFlatten.flatten: time 0.002349/0.6052, allocations: 1.864 MB / 0.6803 GB, free: 10.07 MB / 0.5137 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0006079/0.6059, allocations: 393.6 kB / 0.6807 GB, free: 9.684 MB / 0.5137 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002679/0.6085, allocations: 1.273 MB / 0.6819 GB, free: 8.406 MB / 0.5137 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001019/0.6096, allocations: 0.6773 MB / 0.6826 GB, free: 7.727 MB / 0.5137 GB Notification: Performance of NFPackage.collectConstants: time 0.0001214/0.6097, allocations: 64 kB / 0.6827 GB, free: 7.664 MB / 0.5137 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0016/0.6113, allocations: 0.7411 MB / 0.6834 GB, free: 6.922 MB / 0.5137 GB Notification: Performance of NFScalarize.scalarize: time 0.0002986/0.6116, allocations: 275.1 kB / 0.6836 GB, free: 6.652 MB / 0.5137 GB Notification: Performance of NFVerifyModel.verify: time 0.0004024/0.612, allocations: 342.6 kB / 0.684 GB, free: 6.316 MB / 0.5137 GB Notification: Performance of NFConvertDAE.convert: time 0.002041/0.614, allocations: 1.421 MB / 0.6854 GB, free: 4.891 MB / 0.5137 GB Notification: Performance of FrontEnd - DAE generated: time 6.142e-06/0.614, allocations: 0 / 0.6854 GB, free: 4.891 MB / 0.5137 GB Notification: Performance of FrontEnd: time 2.104e-06/0.614, allocations: 0 / 0.6854 GB, free: 4.891 MB / 0.5137 GB Notification: Performance of Transformations before backend: time 1.023e-05/0.614, allocations: 0 / 0.6854 GB, free: 4.891 MB / 0.5137 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 130 * Number of variables: 130 Notification: Performance of Generate backend data structure: time 0.002521/0.6166, allocations: 1.08 MB / 0.6864 GB, free: 3.777 MB / 0.5137 GB Notification: Performance of prepare preOptimizeDAE: time 5.59e-05/0.6166, allocations: 8.031 kB / 0.6864 GB, free: 3.77 MB / 0.5137 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001496/0.6168, allocations: 98.52 kB / 0.6865 GB, free: 3.664 MB / 0.5137 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008227/0.6176, allocations: 135.5 kB / 0.6866 GB, free: 3.531 MB / 0.5137 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001039/0.6186, allocations: 489.3 kB / 0.6871 GB, free: 3.023 MB / 0.5137 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001644/0.6188, allocations: 147.8 kB / 0.6873 GB, free: 2.855 MB / 0.5137 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001022/0.6189, allocations: 51.98 kB / 0.6873 GB, free: 2.805 MB / 0.5137 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001564/0.6205, allocations: 1.165 MB / 0.6884 GB, free: 1.477 MB / 0.5137 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.243e-05/0.6205, allocations: 3.938 kB / 0.6884 GB, free: 1.473 MB / 0.5137 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.516e-05/0.6206, allocations: 27.98 kB / 0.6885 GB, free: 1.445 MB / 0.5137 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.155e-05/0.6206, allocations: 42.34 kB / 0.6885 GB, free: 1.406 MB / 0.5137 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001097/0.6217, allocations: 0.6127 MB / 0.6891 GB, free: 0.793 MB / 0.5137 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 0.004733/0.6264, allocations: 3.339 MB / 0.6924 GB, free: 13.32 MB / 0.5294 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005923/0.627, allocations: 331.6 kB / 0.6927 GB, free: 12.99 MB / 0.5294 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000284/0.6273, allocations: 165.3 kB / 0.6928 GB, free: 12.83 MB / 0.5294 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003646/0.6277, allocations: 126.2 kB / 0.693 GB, free: 12.71 MB / 0.5294 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.724e-05/0.6277, allocations: 34.84 kB / 0.693 GB, free: 12.66 MB / 0.5294 GB Notification: Performance of pre-optimization done (n=34): time 2.234e-06/0.6277, allocations: 4 kB / 0.693 GB, free: 12.66 MB / 0.5294 GB Notification: Performance of matching and sorting (n=39): time 0.00562/0.6333, allocations: 1.607 MB / 0.6946 GB, free: 11 MB / 0.5294 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001203/0.6335, allocations: 136.5 kB / 0.6947 GB, free: 10.84 MB / 0.5294 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001112/0.6346, allocations: 0.6327 MB / 0.6953 GB, free: 10.2 MB / 0.5294 GB Notification: Performance of collectPreVariables (initialization): time 6.717e-05/0.6346, allocations: 33.7 kB / 0.6953 GB, free: 10.16 MB / 0.5294 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003955/0.635, allocations: 371.8 kB / 0.6957 GB, free: 9.793 MB / 0.5294 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001642/0.6352, allocations: 154.7 kB / 0.6959 GB, free: 9.641 MB / 0.5294 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002796/0.6355, allocations: 150.6 kB / 0.696 GB, free: 9.488 MB / 0.5294 GB Notification: Performance of setup shared object (initialization): time 0.0002261/0.6357, allocations: 378.8 kB / 0.6964 GB, free: 9.109 MB / 0.5294 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003797/0.6361, allocations: 201.9 kB / 0.6965 GB, free: 8.91 MB / 0.5294 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007814/0.6369, allocations: 0.5916 MB / 0.6971 GB, free: 8.152 MB / 0.5294 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001071/0.6379, allocations: 0.7484 MB / 0.6979 GB, free: 7.266 MB / 0.5294 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.217e-06/0.6379, allocations: 0 / 0.6979 GB, free: 7.266 MB / 0.5294 GB Notification: Performance of matching and sorting (n=85) (initialization): time 0.001544/0.6395, allocations: 0.8798 MB / 0.6987 GB, free: 6.375 MB / 0.5294 GB Notification: Performance of prepare postOptimizeDAE: time 2.425e-05/0.6395, allocations: 8 kB / 0.6987 GB, free: 6.367 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.66e-05/0.6395, allocations: 12 kB / 0.6987 GB, free: 6.355 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001408/0.6409, allocations: 324.7 kB / 0.699 GB, free: 6.039 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.000407/0.6413, allocations: 119.8 kB / 0.6992 GB, free: 5.922 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001223/0.6426, allocations: 0.9347 MB / 0.7001 GB, free: 4.961 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004833/0.6431, allocations: 30.61 kB / 0.7001 GB, free: 4.934 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.419e-05/0.6431, allocations: 64 kB / 0.7002 GB, free: 4.871 MB / 0.5294 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 45 * 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 (67): * Single equations (assignments): 66 * 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 {(2,17)} Notification: Performance of prepare postOptimizeDAE: time 0.0003609/0.6435, allocations: 245.5 kB / 0.7004 GB, free: 4.621 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001356/0.6436, allocations: 67.58 kB / 0.7005 GB, free: 4.555 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001433/0.6451, allocations: 0.688 MB / 0.7011 GB, free: 3.84 MB / 0.5294 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.903e-06/0.6451, allocations: 4 kB / 0.7011 GB, free: 3.836 MB / 0.5294 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 5.841e-06/0.6451, allocations: 0 / 0.7011 GB, free: 3.836 MB / 0.5294 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.667e-06/0.6451, allocations: 3.984 kB / 0.7011 GB, free: 3.832 MB / 0.5294 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002226/0.6473, allocations: 1.212 MB / 0.7023 GB, free: 2.559 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.871e-06/0.6473, allocations: 4 kB / 0.7023 GB, free: 2.555 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001042/0.6484, allocations: 203.8 kB / 0.7025 GB, free: 2.355 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.288e-05/0.6485, allocations: 32.83 kB / 0.7026 GB, free: 2.32 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.333e-05/0.6485, allocations: 19.98 kB / 0.7026 GB, free: 2.301 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002619/0.6511, allocations: 2.658 MB / 0.7052 GB, free: 15.41 MB / 0.545 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 5.6e-06/0.6511, allocations: 7.969 kB / 0.7052 GB, free: 15.41 MB / 0.545 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001322/0.6525, allocations: 0.8095 MB / 0.706 GB, free: 14.57 MB / 0.545 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003324/0.6528, allocations: 127.5 kB / 0.7061 GB, free: 14.44 MB / 0.545 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.266e-05/0.6529, allocations: 8 kB / 0.7061 GB, free: 14.43 MB / 0.545 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003749/0.6533, allocations: 27.92 kB / 0.7061 GB, free: 14.41 MB / 0.545 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 9.032e-05/0.6533, allocations: 35.94 kB / 0.7062 GB, free: 14.37 MB / 0.545 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.155e-05/0.6534, allocations: 51.86 kB / 0.7062 GB, free: 14.32 MB / 0.545 GB Notification: Performance of sorting global known variables: time 0.0005459/0.654, allocations: 439 kB / 0.7066 GB, free: 13.9 MB / 0.545 GB Notification: Performance of sort global known variables: time 1e-07/0.654, allocations: 0 / 0.7066 GB, free: 13.9 MB / 0.545 GB Notification: Performance of remove unused functions: time 0.001072/0.655, allocations: 295.6 kB / 0.7069 GB, free: 13.61 MB / 0.545 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 5 * Number of states: 2 (volume.medium.p,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 (39): * Single equations (assignments): 37 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * 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): 1 system {(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 0.002495/0.6575, allocations: 1.613 MB / 0.7085 GB, free: 11.96 MB / 0.545 GB Notification: Performance of simCode: created initialization part: time 0.001141/0.6587, allocations: 0.5265 MB / 0.709 GB, free: 11.43 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 2.926e-06/0.6587, allocations: 0 / 0.709 GB, free: 11.43 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.00102/0.6597, allocations: 411.9 kB / 0.7094 GB, free: 11.02 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001625/0.6613, allocations: 368.5 kB / 0.7097 GB, free: 10.66 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.009541/0.6709, allocations: 6.306 MB / 0.7159 GB, free: 3.961 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003736/0.6712, allocations: 336.7 kB / 0.7162 GB, free: 3.605 MB / 0.545 GB Notification: Performance of simCode: alias equations: time 0.0008357/0.6721, allocations: 258 kB / 0.7165 GB, free: 3.352 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000468/0.6725, allocations: 275.3 kB / 0.7167 GB, free: 3.082 MB / 0.545 GB Notification: Performance of SimCode: time 9.72e-07/0.6725, allocations: 0 / 0.7167 GB, free: 3.082 MB / 0.545 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06686/0.7394, allocations: 26.75 MB / 0.7429 GB, free: 8.301 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.76/14.5, allocations: 7.906 kB / 0.7429 GB, free: 8.293 MB / 0.5762 GB " [Timeout remaining time 645] (rm -f ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.pipe ; mkfifo ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.pipe ; head -c 1048576 < ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.pipe >> ../files/ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air_res.mat --tempDir=temp_ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_Air_fmu --startTime=0 --stopTime=1.01 --stepSize=0.000201919 --timeout=50 --tolerance=1e-06 ModelicaTest_3_2_3_ModelicaTest_Media_TestsWithFluid_MediaTestModels_IdealGases_Air.fmu > ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.pipe 2>&1) [Timeout 52.5] diffSimulationResults("ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/ModelicaTest/Media/TestsWithFluid/MediaTestModels/IdealGases/Air/Air.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_3.2.3_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.Air.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: 17.6981832110323]