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 0.001786/0.001786, allocations: 76.05 kB / 21.24 MB, free: 400 kB / 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 0.002101/0.002101, allocations: 157 kB / 24.48 MB, free: 3.465 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 1.416/1.416, allocations: 173.4 MB / 201.1 MB, free: 12.62 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 0.001567/0.001567, allocations: 51.47 kB / 319.4 MB, free: 3.254 MB / 286.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.08382/0.08538, allocations: 52.15 MB / 371.6 MB, free: 7.352 MB / 334.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Elementary.SpringDamperSystem): time 0.01302/0.0984, allocations: 10.51 MB / 382.1 MB, free: 12.79 MB / 350.1 MB Notification: Performance of NFInst.instExpressions: time 0.008216/0.1066, allocations: 3.997 MB / 386.1 MB, free: 8.785 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001109/0.1077, allocations: 83.56 kB / 386.2 MB, free: 8.703 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.004978/0.1127, allocations: 2.694 MB / 388.9 MB, free: 6 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.004301/0.117, allocations: 2.039 MB / 390.9 MB, free: 3.953 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.001572/0.1186, allocations: 0.815 MB / 391.7 MB, free: 3.137 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.005744/0.1243, allocations: 4.609 MB / 396.3 MB, free: 14.52 MB / 366.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.003347/0.1277, allocations: 2.922 MB / 399.2 MB, free: 11.54 MB / 366.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002514/0.1302, allocations: 1.721 MB / 401 MB, free: 9.816 MB / 366.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.003404/0.1336, allocations: 2.387 MB / 403.3 MB, free: 7.422 MB / 366.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0006856/0.1343, allocations: 352 kB / 403.7 MB, free: 7.078 MB / 366.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.002222/0.1365, allocations: 1.186 MB / 404.9 MB, free: 5.891 MB / 366.1 MB Notification: Performance of NFScalarize.scalarize: time 0.002057/0.1385, allocations: 2.162 MB / 407 MB, free: 3.723 MB / 366.1 MB Notification: Performance of NFVerifyModel.verify: time 0.002142/0.1407, allocations: 1.81 MB / 408.8 MB, free: 1.902 MB / 366.1 MB Notification: Performance of NFConvertDAE.convert: time 0.00797/0.1487, allocations: 7.602 MB / 416.5 MB, free: 10.27 MB / 382.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.528e-06/0.1487, allocations: 0 / 416.5 MB, free: 10.27 MB / 382.1 MB Notification: Performance of FrontEnd: time 1.502e-06/0.1487, allocations: 0 / 416.5 MB, free: 10.27 MB / 382.1 MB Notification: Performance of Transformations before backend: time 0.0001352/0.1488, allocations: 4 kB / 416.5 MB, free: 10.27 MB / 382.1 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 0.009399/0.1582, allocations: 5.346 MB / 421.8 MB, free: 4.859 MB / 382.1 MB Notification: Performance of prepare preOptimizeDAE: time 3.712e-05/0.1582, allocations: 8.922 kB / 421.8 MB, free: 4.852 MB / 382.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.008879/0.1671, allocations: 2.303 MB / 424.1 MB, free: 2.543 MB / 382.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004987/0.1721, allocations: 2.48 MB / 426.6 MB, free: 20 kB / 382.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002377/0.1723, allocations: 278.8 kB / 426.9 MB, free: 15.74 MB / 398.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0008911/0.1732, allocations: 431.6 kB / 427.3 MB, free: 15.32 MB / 398.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02164/0.1949, allocations: 12.31 MB / 439.6 MB, free: 2.18 MB / 398.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0001097/0.195, allocations: 43.62 kB / 439.6 MB, free: 2.137 MB / 398.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000427/0.1954, allocations: 171.8 kB / 439.8 MB, free: 1.969 MB / 398.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0034/0.1988, allocations: 2.17 MB / 442 MB, free: 15.79 MB / 414.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.02179/0.2206, allocations: 10.2 MB / 452.2 MB, free: 5.57 MB / 414.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.2285/0.4491, allocations: 41.53 MB / 493.7 MB, free: 59.35 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.01095/0.4601, allocations: 3.957 MB / 497.7 MB, free: 58.9 MB / 430.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002074/0.4621, allocations: 1.627 MB / 499.3 MB, free: 58.29 MB / 430.1 MB Notification: Performance of preOpt evalFunc (simulation): time 0.009352/0.4715, allocations: 6.514 MB / 0.494 GB, free: 55.62 MB / 430.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.814e-05/0.4715, allocations: 53.75 kB / 0.494 GB, free: 55.57 MB / 430.1 MB Notification: Performance of pre-optimization done (n=183): time 4.528e-06/0.4715, allocations: 0 / 0.494 GB, free: 55.57 MB / 430.1 MB Notification: Performance of matching and sorting (n=205): time 0.03532/0.5069, allocations: 16.29 MB / 0.5099 GB, free: 45.03 MB / 430.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0008427/0.5077, allocations: 1.567 MB / 0.5115 GB, free: 43.33 MB / 430.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003742/0.5114, allocations: 3.992 MB / 0.5153 GB, free: 39.52 MB / 430.1 MB Notification: Performance of collectPreVariables (initialization): time 0.0001863/0.5116, allocations: 57.7 kB / 0.5154 GB, free: 39.46 MB / 430.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.001152/0.5128, allocations: 3.569 MB / 0.5189 GB, free: 36.02 MB / 430.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004614/0.5132, allocations: 0.8471 MB / 0.5197 GB, free: 35.18 MB / 430.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001192/0.5144, allocations: 1.374 MB / 0.5211 GB, free: 33.8 MB / 430.1 MB Notification: Performance of setup shared object (initialization): time 2.88e-05/0.5145, allocations: 301.1 kB / 0.5213 GB, free: 33.51 MB / 430.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002767/0.5172, allocations: 2.281 MB / 0.5236 GB, free: 31.22 MB / 430.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003946/0.5212, allocations: 6.406 MB / 0.5298 GB, free: 22.83 MB / 430.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.007207/0.5284, allocations: 9.34 MB / 0.539 GB, free: 11.49 MB / 430.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.414e-05/0.5284, allocations: 44 kB / 0.539 GB, free: 11.45 MB / 430.1 MB Notification: Performance of matching and sorting (n=894) (initialization): time 0.01816/0.5466, allocations: 10.08 MB / 0.5488 GB, free: 1.348 MB / 430.1 MB Notification: Performance of prepare postOptimizeDAE: time 6.748e-05/0.5467, allocations: 70.97 kB / 0.5489 GB, free: 1.281 MB / 430.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.01098/0.5577, allocations: 3.788 MB / 0.5526 GB, free: 13.48 MB / 446.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.01075/0.5684, allocations: 2.161 MB / 0.5547 GB, free: 11.3 MB / 446.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005421/0.5738, allocations: 1.598 MB / 0.5563 GB, free: 9.707 MB / 446.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.009805/0.5836, allocations: 6.3 MB / 0.5624 GB, free: 3.203 MB / 446.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005614/0.5892, allocations: 483.5 kB / 0.5629 GB, free: 2.73 MB / 446.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001124/0.5904, allocations: 423.9 kB / 0.5633 GB, free: 2.316 MB / 446.1 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 0.004423/0.5948, allocations: 2.204 MB / 0.5654 GB, free: 104 kB / 446.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.00125/0.596, allocations: 357.8 kB / 0.5658 GB, free: 15.75 MB / 462.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0102/0.6062, allocations: 3.248 MB / 0.569 GB, free: 12.48 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.00822/0.6145, allocations: 2.73 MB / 0.5716 GB, free: 9.734 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.322e-05/0.6145, allocations: 4 kB / 0.5716 GB, free: 9.73 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.716e-05/0.6145, allocations: 15.95 kB / 0.5716 GB, free: 9.715 MB / 462.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02776/0.6423, allocations: 8.989 MB / 0.5804 GB, free: 0.5 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.45e-05/0.6423, allocations: 16.56 kB / 0.5804 GB, free: 496 kB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001606/0.6439, allocations: 363.5 kB / 0.5808 GB, free: 132 kB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.003435/0.6474, allocations: 0.9907 MB / 0.5817 GB, free: 15.12 MB / 478.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002251/0.6476, allocations: 59.97 kB / 0.5818 GB, free: 15.07 MB / 478.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.005709/0.6533, allocations: 4.633 MB / 0.5863 GB, free: 10.23 MB / 478.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.00118/0.6545, allocations: 1.431 MB / 0.5877 GB, free: 8.691 MB / 478.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01031/0.6648, allocations: 5.896 MB / 0.5935 GB, free: 2.594 MB / 478.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001001/0.6658, allocations: 341.4 kB / 0.5938 GB, free: 2.258 MB / 478.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0006521/0.6664, allocations: 59.98 kB / 0.5939 GB, free: 2.199 MB / 478.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002025/0.6685, allocations: 151.8 kB / 0.594 GB, free: 2.051 MB / 478.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003655/0.6688, allocations: 180.3 kB / 0.5942 GB, free: 1.875 MB / 478.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001857/0.669, allocations: 88.03 kB / 0.5943 GB, free: 1.789 MB / 478.1 MB Notification: Performance of sorting global known variables: time 0.004301/0.6733, allocations: 2.266 MB / 0.5965 GB, free: 15.54 MB / 494.1 MB Notification: Performance of sort global known variables: time 1.4e-07/0.6733, allocations: 0 / 0.5965 GB, free: 15.54 MB / 494.1 MB Notification: Performance of remove unused functions: time 0.006145/0.6795, allocations: 1.16 MB / 0.5976 GB, free: 14.38 MB / 494.1 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 0.0006464/0.6801, allocations: 218.4 kB / 0.5978 GB, free: 14.16 MB / 494.1 MB Notification: Performance of simCode: created initialization part: time 0.01168/0.6918, allocations: 5.661 MB / 0.6034 GB, free: 8.496 MB / 494.1 MB Notification: Performance of simCode: created event and clocks part: time 1.944e-05/0.6918, allocations: 4 kB / 0.6034 GB, free: 8.492 MB / 494.1 MB Notification: Performance of simCode: created simulation system equations: time 0.004427/0.6962, allocations: 1.952 MB / 0.6053 GB, free: 6.508 MB / 494.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003418/0.6996, allocations: 436.2 kB / 0.6057 GB, free: 6.082 MB / 494.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01956/0.7192, allocations: 10.79 MB / 0.6162 GB, free: 11.06 MB / 0.4981 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005029/0.7242, allocations: 2.923 MB / 0.6191 GB, free: 8.102 MB / 0.4981 GB Notification: Performance of simCode: alias equations: time 0.005149/0.7294, allocations: 1.988 MB / 0.621 GB, free: 6.105 MB / 0.4981 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008783/0.7303, allocations: 256.4 kB / 0.6213 GB, free: 5.855 MB / 0.4981 GB Notification: Performance of SimCode: time 6.52e-07/0.7303, allocations: 0 / 0.6213 GB, free: 5.855 MB / 0.4981 GB Notification: Performance of Templates: time 0.07522/0.8055, allocations: 34.23 MB / 0.6547 GB, free: 4.18 MB / 0.5294 GB " [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 -s ida -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/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/Modelica/Mechanics/MultiBody/Examples/Elementary/SpringDamperSystem/SpringDamperSystem.csv","/var/lib/jenkins1/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: 6.418002653983422]