Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001817/0.001817, allocations: 78.22 kB / 20.68 MB, free: 1.035 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002321/0.002321, allocations: 155.9 kB / 23.94 MB, free: 4.176 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.447/1.447, allocations: 173.4 MB / 200.4 MB, free: 12.87 MB / 190.1 MB " [Timeout remaining time 178] Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|body1.frame_a.r_0.1.|body1.frame_a.r_0.2.|body1.frame_a.r_0.3.|body1.v_0.1.|body1.v_0.2.|body1.v_0.3.|body1.w_a.1.|body1.w_a.2.|body1.w_a.3.|p2.s|p2.v",fileNamePrefix="Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem") translateModel(Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|body1.frame_a.r_0.1.|body1.frame_a.r_0.2.|body1.frame_a.r_0.3.|body1.v_0.1.|body1.v_0.2.|body1.v_0.3.|body1.w_a.1.|body1.w_a.2.|body1.w_a.3.|p2.s|p2.v",fileNamePrefix="Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.363e-06/1.363e-06, allocations: 0 / 318.9 MB, free: 3.562 MB / 286.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.324e-05/2.461e-05, allocations: 7.656 kB / 318.9 MB, free: 3.555 MB / 286.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem): time 0.0114/0.01142, allocations: 10.5 MB / 329.4 MB, free: 12.72 MB / 302.1 MB Notification: Performance of NFInst.instExpressions: time 0.009752/0.02118, allocations: 4.011 MB / 333.5 MB, free: 10.16 MB / 302.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.002085/0.02326, allocations: 84.78 kB / 333.5 MB, free: 10.13 MB / 302.1 MB Notification: Performance of NFTyping.typeComponents: time 0.005871/0.02913, allocations: 2.83 MB / 336.4 MB, free: 8.445 MB / 302.1 MB Notification: Performance of NFTyping.typeBindings: time 0.00628/0.03541, allocations: 2.092 MB / 338.5 MB, free: 6.953 MB / 302.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002023/0.03744, allocations: 0.8786 MB / 339.3 MB, free: 6.336 MB / 302.1 MB Notification: Performance of NFFlatten.flatten: time 0.008056/0.04549, allocations: 5.25 MB / 344.6 MB, free: 1.965 MB / 302.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.005355/0.05085, allocations: 3.432 MB / 348 MB, free: 14.48 MB / 318.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.004803/0.05565, allocations: 2.619 MB / 350.6 MB, free: 11.86 MB / 318.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.004254/0.0599, allocations: 2.611 MB / 353.2 MB, free: 9.238 MB / 318.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0007544/0.06066, allocations: 360 kB / 353.6 MB, free: 8.887 MB / 318.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002541/0.0632, allocations: 1.236 MB / 354.8 MB, free: 7.648 MB / 318.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002491/0.06569, allocations: 2.267 MB / 357.1 MB, free: 5.375 MB / 318.1 MB Notification: Performance of NFVerifyModel.verify: time 0.002493/0.06818, allocations: 1.437 MB / 358.5 MB, free: 3.934 MB / 318.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01013/0.07832, allocations: 7.62 MB / 366.2 MB, free: 12.29 MB / 334.1 MB Notification: Performance of FrontEnd - DAE generated: time 3.416e-06/0.07832, allocations: 3.938 kB / 366.2 MB, free: 12.29 MB / 334.1 MB Notification: Performance of FrontEnd: time 9.32e-07/0.07832, allocations: 4 kB / 366.2 MB, free: 12.28 MB / 334.1 MB Notification: Performance of Transformations before backend: time 0.0001811/0.0785, allocations: 0 / 366.2 MB, free: 12.28 MB / 334.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 1686 * Number of variables: 1686 Notification: Performance of Generate backend data structure: time 0.01124/0.08975, allocations: 5.396 MB / 371.6 MB, free: 6.824 MB / 334.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.451e-05/0.08979, allocations: 8.922 kB / 371.6 MB, free: 6.816 MB / 334.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.009148/0.09894, allocations: 2.307 MB / 373.9 MB, free: 4.504 MB / 334.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004867/0.1038, allocations: 2.41 MB / 376.3 MB, free: 2.051 MB / 334.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002416/0.104, allocations: 274.8 kB / 376.6 MB, free: 1.781 MB / 334.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001116/0.1052, allocations: 427.7 kB / 377 MB, free: 1.363 MB / 334.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02473/0.1299, allocations: 12.31 MB / 389.3 MB, free: 4.223 MB / 350.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001271/0.13, allocations: 59.5 kB / 389.3 MB, free: 4.164 MB / 350.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0004827/0.1305, allocations: 175.8 kB / 389.5 MB, free: 3.992 MB / 350.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.003687/0.1342, allocations: 2.158 MB / 391.7 MB, free: 1.828 MB / 350.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02325/0.1574, allocations: 10.21 MB / 401.9 MB, free: 7.602 MB / 366.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.05624/0.2137, allocations: 41.62 MB / 443.5 MB, free: 12.74 MB / 414.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01222/0.2259, allocations: 3.944 MB / 447.4 MB, free: 8.773 MB / 414.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002572/0.2285, allocations: 1.622 MB / 449.1 MB, free: 7.148 MB / 414.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.01215/0.2406, allocations: 6.622 MB / 455.7 MB, free: 492 kB / 414.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.881e-05/0.2407, allocations: 51.88 kB / 455.7 MB, free: 432 kB / 414.1 MB Notification: Performance of pre-optimization done (n=183): time 4.729e-06/0.2407, allocations: 3.938 kB / 455.7 MB, free: 428 kB / 414.1 MB Notification: Performance of matching and sorting (n=205): time 0.2106/0.4513, allocations: 16.43 MB / 472.2 MB, free: 129.4 MB / 430.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.001143/0.4524, allocations: 1.555 MB / 473.7 MB, free: 127.9 MB / 430.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00602/0.4585, allocations: 4.141 MB / 477.9 MB, free: 127.1 MB / 430.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0004471/0.4589, allocations: 56.86 kB / 477.9 MB, free: 127.1 MB / 430.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.00188/0.4608, allocations: 3.538 MB / 481.5 MB, free: 125.1 MB / 430.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0008763/0.4617, allocations: 0.8388 MB / 482.3 MB, free: 124.5 MB / 430.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001647/0.4633, allocations: 1.345 MB / 483.6 MB, free: 123.9 MB / 430.1 MB Notification: Performance of setup shared object (initialization): time 3.576e-05/0.4634, allocations: 310.4 kB / 483.9 MB, free: 123.6 MB / 430.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003685/0.467, allocations: 2.302 MB / 486.2 MB, free: 122.9 MB / 430.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.005396/0.4724, allocations: 6.442 MB / 492.7 MB, free: 116.6 MB / 430.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.009074/0.4815, allocations: 9.368 MB / 0.4903 GB, free: 108.8 MB / 430.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.000181/0.4817, allocations: 44.88 kB / 0.4903 GB, free: 108.8 MB / 430.1 MB Notification: Performance of matching and sorting (n=894) (initialization): time 0.02081/0.5025, allocations: 10.12 MB / 0.5002 GB, free: 105.4 MB / 430.1 MB Notification: Performance of prepare postOptimizeDAE: time 9.392e-05/0.5026, allocations: 75.05 kB / 0.5003 GB, free: 105.4 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.01018/0.5128, allocations: 3.831 MB / 0.504 GB, free: 102.7 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.009786/0.5226, allocations: 2.17 MB / 0.5061 GB, free: 100.5 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.004618/0.5272, allocations: 1.599 MB / 0.5077 GB, free: 98.88 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00709/0.5343, allocations: 6.305 MB / 0.5139 GB, free: 92.38 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005843/0.5401, allocations: 0.5383 MB / 0.5144 GB, free: 91.84 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0008664/0.541, allocations: 416 kB / 0.5148 GB, free: 91.43 MB / 430.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 665 * Number of states: 0 () * Number of discrete variables: 45 (damper1.color_b[3],damper1.color_b[2],damper1.color_b[1],damper1.color_a[3],damper1.color_a[2],damper1.color_a[1],spring1.color[3],spring1.color[2],spring1.color[1],spring1.massColor[3],spring1.massColor[2],spring1.massColor[1],spring2.color[3],spring2.color[2],spring2.color[1],spring2.massColor[3],spring2.massColor[2],spring2.massColor[1],p2.boxColor[3],p2.boxColor[2],p2.boxColor[1],body2.sphereColor[3],body2.sphereColor[2],body2.sphereColor[1],bar2.color[3],bar2.color[2],bar2.color[1],bar1.color[3],bar1.color[2],bar1.color[1],body1.sphereColor[3],body1.sphereColor[2],body1.sphereColor[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (856): * Single equations (assignments): 847 * Array equations: 5 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * 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): 2 systems {(4,100.0%), (3,100.0%)} * Non-linear Jacobian (size): 1 system {4} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.003038/0.544, allocations: 2.212 MB / 0.5169 GB, free: 89.21 MB / 430.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0007366/0.5447, allocations: 357.6 kB / 0.5173 GB, free: 88.86 MB / 430.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.005315/0.5501, allocations: 3.252 MB / 0.5205 GB, free: 85.59 MB / 430.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.004367/0.5544, allocations: 2.734 MB / 0.5231 GB, free: 82.84 MB / 430.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.156e-05/0.5544, allocations: 4 kB / 0.5231 GB, free: 82.84 MB / 430.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.857e-05/0.5545, allocations: 7.969 kB / 0.5231 GB, free: 82.83 MB / 430.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01423/0.5687, allocations: 9.045 MB / 0.532 GB, free: 73.57 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.875e-05/0.5687, allocations: 12 kB / 0.532 GB, free: 73.55 MB / 430.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001744/0.5705, allocations: 367.5 kB / 0.5323 GB, free: 73.2 MB / 430.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.003255/0.5737, allocations: 0.9903 MB / 0.5333 GB, free: 72.2 MB / 430.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001588/0.5739, allocations: 59.92 kB / 0.5334 GB, free: 72.14 MB / 430.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.004261/0.5781, allocations: 4.642 MB / 0.5379 GB, free: 67.3 MB / 430.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.0008066/0.5789, allocations: 1.423 MB / 0.5393 GB, free: 65.77 MB / 430.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.008321/0.5873, allocations: 5.866 MB / 0.545 GB, free: 59.7 MB / 430.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001062/0.5883, allocations: 381.3 kB / 0.5454 GB, free: 59.32 MB / 430.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0004395/0.5888, allocations: 55.98 kB / 0.5454 GB, free: 59.27 MB / 430.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001972/0.5907, allocations: 207.1 kB / 0.5456 GB, free: 59.07 MB / 430.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003059/0.591, allocations: 180.3 kB / 0.5458 GB, free: 58.89 MB / 430.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000136/0.5912, allocations: 81.28 kB / 0.5459 GB, free: 58.81 MB / 430.1 MB Notification: Performance of sorting global known variables: time 0.002902/0.5941, allocations: 2.383 MB / 0.5482 GB, free: 56.45 MB / 430.1 MB Notification: Performance of sort global known variables: time 1.3e-07/0.5941, allocations: 4 kB / 0.5482 GB, free: 56.44 MB / 430.1 MB Notification: Performance of remove unused functions: time 0.005026/0.5991, allocations: 1.293 MB / 0.5495 GB, free: 55.15 MB / 430.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 60 * Number of states: 14 ($STATESET1.x[3],$STATESET1.x[2],$STATESET1.x[1],body1.frame_a.r_0[1],body1.frame_a.r_0[2],body1.frame_a.r_0[3],body1.v_0[1],body1.v_0[2],body1.v_0[3],body1.w_a[1],body1.w_a[2],body1.w_a[3],p2.s,p2.v) * 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 (180): * Single equations (assignments): 173 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 3 * 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): 2 systems {(4,100.0%), (3,100.0%)} * Non-linear Jacobian (size): 1 system {4} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0004842/0.5996, allocations: 242.4 kB / 0.5497 GB, free: 54.91 MB / 430.1 MB Notification: Performance of simCode: created initialization part: time 0.008774/0.6084, allocations: 5.669 MB / 0.5552 GB, free: 49.24 MB / 430.1 MB Notification: Performance of simCode: created event and clocks part: time 1.237e-05/0.6084, allocations: 4 kB / 0.5552 GB, free: 49.24 MB / 430.1 MB Notification: Performance of simCode: created simulation system equations: time 0.003307/0.6117, allocations: 1.952 MB / 0.5572 GB, free: 47.25 MB / 430.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002875/0.6146, allocations: 437.7 kB / 0.5576 GB, free: 46.83 MB / 430.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01325/0.6278, allocations: 10.58 MB / 0.5679 GB, free: 36.03 MB / 430.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002689/0.6305, allocations: 2.927 MB / 0.5708 GB, free: 33.07 MB / 430.1 MB Notification: Performance of simCode: alias equations: time 0.003718/0.6342, allocations: 1.989 MB / 0.5727 GB, free: 31.07 MB / 430.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.00065/0.6349, allocations: 260.4 kB / 0.5729 GB, free: 30.82 MB / 430.1 MB Notification: Performance of SimCode: time 1.032e-06/0.6349, allocations: 0 / 0.5729 GB, free: 30.82 MB / 430.1 MB Notification: Performance of Templates: time 0.06332/0.6982, allocations: 36.11 MB / 0.6082 GB, free: 11.27 MB / 446.1 MB " [Timeout remaining time 659] make -j1 -f Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.makefile [Timeout 660] (rm -f Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.pipe ; mkfifo Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.pipe ; head -c 1048576 < Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.pipe >> ../files/Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.sim & ./Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.pipe 2>&1) [Timeout 480] diffSimulationResults("Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/Modelica/Mechanics/MultiBody/Examples/Elementary/SpringDamperSystem/SpringDamperSystem.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Modelica_4.0.0_Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem.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: 6.425765015184879]