Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.001603/0.001603, allocations: 112.9 kB / 19.17 MB, free: 3.891 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001849/0.001849, allocations: 210.5 kB / 22.13 MB, free: 0.9375 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.592/1.592, allocations: 230.2 MB / 255.2 MB, free: 15.24 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0-beta.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0-beta.om/package.mo): time 0.2674/0.2674, allocations: 46.89 MB / 358.1 MB, free: 10.52 MB / 286.1 MB " [Timeout remaining time 180] Using package ModelicaTest with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0-beta.om/package.mo) Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Running command: translateModel(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.p|volume.medium.T|volume.medium.X.1.|volume.medium.X.2.|volume.medium.X.3.|volume.medium.X.4.|volume.medium.X.5.|volume.medium.X.6.",fileNamePrefix="ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas") translateModel(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.p|volume.medium.T|volume.medium.X.1.|volume.medium.X.2.|volume.medium.X.3.|volume.medium.X.4.|volume.medium.X.5.|volume.medium.X.6.",fileNamePrefix="ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas") [Timeout 660] "Warning: Requested package Modelica of version 4.1.0, but this package was already loaded with version trunk. OpenModelica cannot reason about compatibility between the two packages since they are not semantic versions. Notification: Performance of FrontEnd - loaded program: time 0.003613/0.003613, allocations: 75.88 kB / 0.4924 GB, free: 8.047 MB / 350.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1951/0.1987, allocations: 65.99 MB / 0.5568 GB, free: 5.926 MB / 414.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas): time 0.5789/0.7776, allocations: 180.6 MB / 0.7332 GB, free: 13.16 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.0106/0.7882, allocations: 6.531 MB / 0.7396 GB, free: 6.598 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008433/0.789, allocations: 19.88 kB / 0.7396 GB, free: 6.578 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001458/0.7905, allocations: 449.5 kB / 0.74 GB, free: 6.137 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.005234/0.7957, allocations: 1.777 MB / 0.7418 GB, free: 4.359 MB / 0.545 GB Notification: Performance of NFTyping.typeClassSections: time 0.004514/0.8002, allocations: 1.528 MB / 0.7433 GB, free: 2.836 MB / 0.545 GB Notification: Performance of NFFlatten.flatten: time 0.003923/0.8041, allocations: 2.243 MB / 0.7454 GB, free: 0.5859 MB / 0.545 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001421/0.8056, allocations: 0.668 MB / 0.7461 GB, free: 15.91 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004617/0.8102, allocations: 1.815 MB / 0.7479 GB, free: 14.09 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003785/0.814, allocations: 1.687 MB / 0.7495 GB, free: 12.4 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.000338/0.8143, allocations: 100 kB / 0.7496 GB, free: 12.3 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003755/0.8181, allocations: 1.39 MB / 0.751 GB, free: 10.91 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0009644/0.819, allocations: 0.6936 MB / 0.7516 GB, free: 10.22 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.001249/0.8203, allocations: 0.751 MB / 0.7524 GB, free: 9.465 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.005115/0.8254, allocations: 2.636 MB / 0.755 GB, free: 6.82 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 6.322e-06/0.8254, allocations: 0 / 0.755 GB, free: 6.82 MB / 0.5606 GB Notification: Performance of FrontEnd: time 2.424e-06/0.8254, allocations: 0 / 0.755 GB, free: 6.82 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 4.052e-05/0.8254, allocations: 0 / 0.755 GB, free: 6.82 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: 276 * Number of variables: 276 Notification: Performance of Generate backend data structure: time 0.004638/0.8301, allocations: 1.748 MB / 0.7567 GB, free: 5.016 MB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 4.414e-05/0.8301, allocations: 12.03 kB / 0.7567 GB, free: 5.004 MB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001666/0.8318, allocations: 314.9 kB / 0.757 GB, free: 4.695 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001587/0.8334, allocations: 0.7771 MB / 0.7577 GB, free: 3.875 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002362/0.8336, allocations: 145.3 kB / 0.7579 GB, free: 3.723 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002032/0.8338, allocations: 103.9 kB / 0.758 GB, free: 3.621 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003278/0.8371, allocations: 1.845 MB / 0.7598 GB, free: 1.707 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.202e-05/0.8371, allocations: 0 / 0.7598 GB, free: 1.707 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001555/0.8373, allocations: 44 kB / 0.7598 GB, free: 1.664 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001205/0.8374, allocations: 93.95 kB / 0.7599 GB, free: 1.57 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003018/0.8404, allocations: 1.698 MB / 0.7616 GB, free: 15.87 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 0.01149/0.8519, allocations: 6.868 MB / 0.7683 GB, free: 8.531 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001585/0.8535, allocations: 0.8544 MB / 0.7691 GB, free: 7.672 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006969/0.8542, allocations: 442.1 kB / 0.7695 GB, free: 7.238 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001506/0.8543, allocations: 101.6 kB / 0.7696 GB, free: 7.121 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.231e-05/0.8544, allocations: 55 kB / 0.7697 GB, free: 7.055 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=60): time 2.575e-06/0.8544, allocations: 0 / 0.7697 GB, free: 7.055 MB / 0.5762 GB Notification: Performance of matching and sorting (n=72): time 0.01199/0.8664, allocations: 4.128 MB / 0.7737 GB, free: 2.867 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.624e-05/0.8665, allocations: 111.5 kB / 0.7738 GB, free: 2.734 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00175/0.8682, allocations: 1.105 MB / 0.7749 GB, free: 1.605 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 0.0001517/0.8684, allocations: 45.7 kB / 0.7749 GB, free: 1.555 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0005245/0.8689, allocations: 0.5274 MB / 0.7755 GB, free: 1.02 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002663/0.8692, allocations: 285.6 kB / 0.7757 GB, free: 0.7383 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003989/0.8696, allocations: 214.5 kB / 0.7759 GB, free: 0.5234 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0002634/0.8698, allocations: 349.9 kB / 0.7763 GB, free: 180 kB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001053/0.8709, allocations: 0.5837 MB / 0.7768 GB, free: 15.59 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001281/0.8722, allocations: 0.8682 MB / 0.7777 GB, free: 14.6 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002404/0.8746, allocations: 1.451 MB / 0.7791 GB, free: 13.04 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.855e-06/0.8746, allocations: 8.875 kB / 0.7791 GB, free: 13.03 MB / 0.5919 GB Notification: Performance of matching and sorting (n=125) (initialization): time 0.00359/0.8782, allocations: 1.969 MB / 0.781 GB, free: 11.05 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 3.045e-05/0.8782, allocations: 11.98 kB / 0.781 GB, free: 11.04 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.538e-05/0.8782, allocations: 8.812 kB / 0.781 GB, free: 11.03 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.004955/0.8832, allocations: 1.339 MB / 0.7824 GB, free: 9.691 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006943/0.8839, allocations: 151.8 kB / 0.7825 GB, free: 9.543 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003146/0.887, allocations: 1.924 MB / 0.7844 GB, free: 7.594 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.00113/0.8881, allocations: 51.91 kB / 0.7844 GB, free: 7.547 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001362/0.8883, allocations: 67.98 kB / 0.7845 GB, free: 7.48 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * 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 (82): * Single equations (assignments): 81 * 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 {(9,35)} Notification: Performance of prepare postOptimizeDAE: time 0.0008003/0.8891, allocations: 393.5 kB / 0.7849 GB, free: 7.086 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002661/0.8893, allocations: 119.2 kB / 0.785 GB, free: 6.969 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002941/0.8923, allocations: 1.506 MB / 0.7865 GB, free: 5.457 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.145e-05/0.8923, allocations: 8 kB / 0.7865 GB, free: 5.449 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.196e-06/0.8923, allocations: 4 kB / 0.7865 GB, free: 5.445 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.247e-06/0.8923, allocations: 7.984 kB / 0.7865 GB, free: 5.438 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004652/0.897, allocations: 2.688 MB / 0.7891 GB, free: 2.688 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.827e-06/0.897, allocations: 0 / 0.7891 GB, free: 2.688 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001888/0.8988, allocations: 327.6 kB / 0.7894 GB, free: 2.367 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002258/0.8991, allocations: 72.92 kB / 0.7895 GB, free: 2.293 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001071/0.8992, allocations: 31.98 kB / 0.7895 GB, free: 2.262 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002976/0.9022, allocations: 3.033 MB / 0.7925 GB, free: 14.95 MB / 0.6075 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.097e-06/0.9022, allocations: 4.031 kB / 0.7925 GB, free: 14.95 MB / 0.6075 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003365/0.9055, allocations: 1.912 MB / 0.7943 GB, free: 13.01 MB / 0.6075 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007314/0.9063, allocations: 340.2 kB / 0.7947 GB, free: 12.66 MB / 0.6075 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001802/0.9064, allocations: 33.2 kB / 0.7947 GB, free: 12.63 MB / 0.6075 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0009181/0.9074, allocations: 47.95 kB / 0.7947 GB, free: 12.58 MB / 0.6075 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002413/0.9076, allocations: 60.58 kB / 0.7948 GB, free: 12.52 MB / 0.6075 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001317/0.9077, allocations: 71.81 kB / 0.7949 GB, free: 12.45 MB / 0.6075 GB Notification: Performance of sorting global known variables: time 0.001161/0.9089, allocations: 0.7931 MB / 0.7956 GB, free: 11.65 MB / 0.6075 GB Notification: Performance of sort global known variables: time 9e-08/0.9089, allocations: 0 / 0.7956 GB, free: 11.65 MB / 0.6075 GB Notification: Performance of remove unused functions: time 0.001596/0.9105, allocations: 487.5 kB / 0.7961 GB, free: 11.17 MB / 0.6075 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 8 (volume.medium.p,volume.medium.Xi[1],volume.medium.Xi[2],volume.medium.Xi[3],volume.medium.Xi[4],volume.medium.Xi[5],volume.medium.Xi[6],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 (78): * Single equations (assignments): 76 * 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 0.001864/0.9124, allocations: 0.6766 MB / 0.7968 GB, free: 10.5 MB / 0.6075 GB Notification: Performance of simCode: created initialization part: time 0.002875/0.9152, allocations: 1.419 MB / 0.7982 GB, free: 9.078 MB / 0.6075 GB Notification: Performance of simCode: created event and clocks part: time 8.425e-06/0.9152, allocations: 4.656 kB / 0.7982 GB, free: 9.074 MB / 0.6075 GB Notification: Performance of simCode: created simulation system equations: time 0.001714/0.9169, allocations: 0.8311 MB / 0.799 GB, free: 8.227 MB / 0.6075 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003457/0.9204, allocations: 0.7549 MB / 0.7997 GB, free: 7.477 MB / 0.6075 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005697/0.9261, allocations: 3.019 MB / 0.8027 GB, free: 4.426 MB / 0.6075 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009495/0.9271, allocations: 1.172 MB / 0.8038 GB, free: 3.223 MB / 0.6075 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005026/0.9276, allocations: 119.4 kB / 0.8039 GB, free: 3.105 MB / 0.6075 GB Notification: Performance of SimCode: time 1.503e-06/0.9276, allocations: 4 kB / 0.8039 GB, free: 3.102 MB / 0.6075 GB Notification: Performance of Templates: time 0.05048/0.978, allocations: 32.12 MB / 0.8353 GB, free: 3.066 MB / 0.6387 GB " [Timeout remaining time 659] make -j1 -f ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.makefile [Timeout 660] (rm -f ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe ; mkfifo ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe ; head -c 1048576 < ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe >> ../files/ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.sim & ./ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe 2>&1) [Timeout 480] diffSimulationResults("ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork_2/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/ModelicaTest/Media/TestsWithFluid/MediaTestModels/IdealGases/SimpleNaturalGas/SimpleNaturalGas.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork_2/OpenModelicaLibraryTesting/files/ModelicaTest_4.1.0-beta.om_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.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: 15.402695931028575]