Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.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 0.001404/0.001404, allocations: 91.5 kB / 21.2 MB, free: 3.375 MB / 18.57 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 0.001002/0.001002, allocations: 156.5 kB / 24.55 MB, free: 20 kB / 18.57 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 0.9622/0.9622, allocations: 177 MB / 204.8 MB, free: 5.609 MB / 186.7 MB " [Timeout remaining time 179] 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(Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5028,variableFilter="time|bodyOfConstraint.body.w_a.[0-9,]+.|joint.phi_a|joint.phi_b|joint.w_a|joint.w_b",fileNamePrefix="Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint") translateModel(Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5028,variableFilter="time|bodyOfConstraint.body.w_a.[0-9,]+.|joint.phi_a|joint.phi_b|joint.w_a|joint.w_b",fileNamePrefix="Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.973e-06/1.973e-06, allocations: 3.938 kB / 272.9 MB, free: 1.477 MB / 250.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 1.649e-05/1.846e-05, allocations: 2.312 kB / 272.9 MB, free: 1.473 MB / 250.7 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint): time 0.146/0.146, allocations: 19.65 MB / 292.6 MB, free: 14.24 MB / 266.7 MB Notification: Performance of NFInst.instExpressions: time 0.01253/0.1585, allocations: 6.418 MB / 299 MB, free: 13.4 MB / 266.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.004201/0.1627, allocations: 190.9 kB / 299.2 MB, free: 13.34 MB / 266.7 MB Notification: Performance of NFTyping.typeComponents: time 0.00895/0.1717, allocations: 7.602 MB / 306.8 MB, free: 10.82 MB / 266.7 MB Notification: Performance of NFTyping.typeBindings: time 0.007295/0.179, allocations: 2.896 MB / 309.7 MB, free: 9.023 MB / 266.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.004187/0.1831, allocations: 2.745 MB / 312.4 MB, free: 7.457 MB / 266.7 MB Notification: Performance of NFFlatten.flatten: time 0.008396/0.1915, allocations: 8.021 MB / 320.4 MB, free: 1.984 MB / 266.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.00878/0.2003, allocations: 7.235 MB / 327.7 MB, free: 10.66 MB / 282.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0086/0.2089, allocations: 4.76 MB / 332.4 MB, free: 5.895 MB / 282.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.006252/0.2152, allocations: 4.213 MB / 336.6 MB, free: 1.672 MB / 282.7 MB Notification: Performance of NFPackage.collectConstants: time 0.002169/0.2173, allocations: 0.7344 MB / 337.4 MB, free: 0.9375 MB / 282.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004097/0.2214, allocations: 1.927 MB / 339.3 MB, free: 15.01 MB / 298.7 MB Notification: Performance of NFScalarize.scalarize: time 0.003745/0.2252, allocations: 3.986 MB / 343.3 MB, free: 11.01 MB / 298.7 MB Notification: Performance of NFVerifyModel.verify: time 0.004311/0.2295, allocations: 2.559 MB / 345.8 MB, free: 8.445 MB / 298.7 MB Notification: Performance of NFConvertDAE.convert: time 0.01121/0.2407, allocations: 8.316 MB / 354.2 MB, free: 100 kB / 298.7 MB Notification: Performance of FrontEnd - DAE generated: time 6.362e-06/0.2407, allocations: 0 / 354.2 MB, free: 100 kB / 298.7 MB Notification: Performance of FrontEnd: time 1.813e-06/0.2407, allocations: 0 / 354.2 MB, free: 100 kB / 298.7 MB Notification: Performance of Transformations before backend: time 0.0003895/0.2411, allocations: 4 kB / 354.2 MB, free: 96 kB / 298.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2598 * Number of variables: 2598 Notification: Performance of Generate backend data structure: time 0.01638/0.2575, allocations: 9.889 MB / 364 MB, free: 6.109 MB / 314.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.386e-05/0.2575, allocations: 8.031 kB / 364.1 MB, free: 6.102 MB / 314.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.006275/0.2638, allocations: 3.151 MB / 367.2 MB, free: 2.945 MB / 314.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006719/0.2705, allocations: 4.15 MB / 371.4 MB, free: 14.7 MB / 330.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0003569/0.2709, allocations: 480.8 kB / 371.8 MB, free: 14.23 MB / 330.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.001931/0.2728, allocations: 0.641 MB / 372.5 MB, free: 13.59 MB / 330.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.02187/0.2947, allocations: 11.17 MB / 383.6 MB, free: 1.07 MB / 330.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 0.0002159/0.2949, allocations: 67.47 kB / 383.7 MB, free: 1.004 MB / 330.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0009355/0.2958, allocations: 295.8 kB / 384 MB, free: 0.7148 MB / 330.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.00347/0.2993, allocations: 2.897 MB / 386.9 MB, free: 13.81 MB / 346.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01623/0.3155, allocations: 6.483 MB / 393.4 MB, free: 7.332 MB / 346.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.3182/0.6337, allocations: 69.17 MB / 462.5 MB, free: 60.7 MB / 378.8 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0138/0.6475, allocations: 5.819 MB / 468.4 MB, free: 60.54 MB / 378.8 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.002355/0.6498, allocations: 1.559 MB / 469.9 MB, free: 60.48 MB / 378.8 MB Notification: Performance of preOpt evalFunc (simulation): time 0.01408/0.6639, allocations: 11.2 MB / 481.1 MB, free: 57.99 MB / 378.8 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.158e-05/0.664, allocations: 71.45 kB / 481.2 MB, free: 57.92 MB / 378.8 MB Notification: Performance of pre-optimization done (n=313): time 5.049e-06/0.664, allocations: 0 / 481.2 MB, free: 57.92 MB / 378.8 MB Notification: Performance of matching and sorting (n=371): time 0.06815/0.7321, allocations: 30.09 MB / 0.4993 GB, free: 34.44 MB / 378.8 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.006591/0.7387, allocations: 10.27 MB / 0.5093 GB, free: 23.67 MB / 378.8 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005948/0.7447, allocations: 5.2 MB / 0.5144 GB, free: 18.72 MB / 378.8 MB Notification: Performance of collectPreVariables (initialization): time 0.0008042/0.7455, allocations: 84.44 kB / 0.5145 GB, free: 18.63 MB / 378.8 MB Notification: Performance of collectInitialEqns (initialization): time 0.001968/0.7474, allocations: 5.41 MB / 0.5198 GB, free: 13.61 MB / 378.8 MB Notification: Performance of collectInitialBindings (initialization): time 0.001364/0.7488, allocations: 1.493 MB / 0.5212 GB, free: 12.13 MB / 378.8 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001987/0.7508, allocations: 2.074 MB / 0.5232 GB, free: 10.05 MB / 378.8 MB Notification: Performance of setup shared object (initialization): time 3.679e-05/0.7508, allocations: 480.8 kB / 0.5237 GB, free: 9.574 MB / 378.8 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002209/0.753, allocations: 1.385 MB / 0.5251 GB, free: 8.184 MB / 378.8 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.00488/0.7579, allocations: 9.261 MB / 0.5341 GB, free: 11.44 MB / 394.8 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.01221/0.7701, allocations: 11.84 MB / 0.5457 GB, free: 12.5 MB / 410.8 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001806/0.7703, allocations: 56 kB / 0.5457 GB, free: 12.44 MB / 410.8 MB Notification: Performance of matching and sorting (n=1251) (initialization): time 0.02108/0.7914, allocations: 10.63 MB / 0.5561 GB, free: 1.75 MB / 410.8 MB Notification: Performance of prepare postOptimizeDAE: time 0.0001126/0.7915, allocations: 91.94 kB / 0.5562 GB, free: 1.66 MB / 410.8 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0002079/0.7917, allocations: 184 kB / 0.5564 GB, free: 1.48 MB / 410.8 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.006039/0.7977, allocations: 2.445 MB / 0.5587 GB, free: 15.02 MB / 426.8 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005218/0.803, allocations: 2.203 MB / 0.5609 GB, free: 12.81 MB / 426.8 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.1622/0.9651, allocations: 18.67 MB / 0.5791 GB, free: 124.5 MB / 426.8 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.006062/0.9712, allocations: 0.6609 MB / 0.5798 GB, free: 124.5 MB / 426.8 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.001806/0.973, allocations: 0.5678 MB / 0.5803 GB, free: 124.5 MB / 426.8 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 848 * Number of states: 0 () * Number of discrete variables: 68 (sensorConstraintRelative.arrow.twoHeadedArrow,sensorConstraintRelative.arrow.headAtOrigin,freeMotionScalarInit.arrowColor[3],freeMotionScalarInit.arrowColor[2],freeMotionScalarInit.arrowColor[1],fixedTranslationOfConstraint.color[3],fixedTranslationOfConstraint.color[2],fixedTranslationOfConstraint.color[1],fixedTranslationOfJoint.color[3],fixedTranslationOfJoint.color[2],fixedTranslationOfJoint.color[1],fixedTranslation.color[3],fixedTranslation.color[2],fixedTranslation.color[1],fixedRotation.color[3],fixedRotation.color[2],fixedRotation.color[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],springOfConstraint.color[3],springOfConstraint.color[2],springOfConstraint.color[1],springOfConstraint.massColor[3],springOfConstraint.massColor[2],springOfConstraint.massColor[1],springOfJoint.color[3],springOfJoint.color[2],springOfJoint.color[1],springOfJoint.massColor[3],springOfJoint.massColor[2],springOfJoint.massColor[1],bodyOfConstraint.color[3],bodyOfConstraint.color[2],bodyOfConstraint.color[1],bodyOfConstraint.body.sphereColor[3],bodyOfConstraint.body.sphereColor[2],bodyOfConstraint.body.sphereColor[1],bodyOfConstraint.frameTranslation.color[3],bodyOfConstraint.frameTranslation.color[2],bodyOfConstraint.frameTranslation.color[1],bodyOfJoint.color[3],bodyOfJoint.color[2],bodyOfJoint.color[1],bodyOfJoint.body.sphereColor[3],bodyOfJoint.body.sphereColor[2],bodyOfJoint.body.sphereColor[1],bodyOfJoint.frameTranslation.color[3],bodyOfJoint.frameTranslation.color[2],bodyOfJoint.frameTranslation.color[1],sensorConstraintRelative.arrowColor[3],sensorConstraintRelative.arrowColor[2],sensorConstraintRelative.arrowColor[1],constraint.sphereColor[3],constraint.sphereColor[2],constraint.sphereColor[1],joint.cylinderColor[3],joint.cylinderColor[2],joint.cylinderColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1144): * Single equations (assignments): 1127 * Array equations: 10 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 7 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 6 systems {(3,20,100.0%), (1,7,100.0%), (2,24,100.0%), (2,1,100.0%), (2,1,100.0%), (2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,7)} Notification: Performance of prepare postOptimizeDAE: time 0.003616/0.9766, allocations: 0.9345 MB / 0.5812 GB, free: 124.3 MB / 426.8 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001249/0.9779, allocations: 0.643 MB / 0.5819 GB, free: 124.3 MB / 426.8 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.009323/0.9872, allocations: 5.442 MB / 0.5872 GB, free: 124 MB / 426.8 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 0.007424/0.9946, allocations: 4.265 MB / 0.5913 GB, free: 123.8 MB / 426.8 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.007138/1.002, allocations: 4.246 MB / 0.5955 GB, free: 123.5 MB / 426.8 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.002e-05/1.002, allocations: 14.86 kB / 0.5955 GB, free: 123.5 MB / 426.8 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.02317/1.025, allocations: 15.35 MB / 0.6105 GB, free: 120.8 MB / 426.8 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.889e-05/1.025, allocations: 3.594 kB / 0.6105 GB, free: 120.8 MB / 426.8 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00183/1.027, allocations: 0.6178 MB / 0.6111 GB, free: 120.7 MB / 426.8 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.004941/1.032, allocations: 2.031 MB / 0.6131 GB, free: 120.2 MB / 426.8 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0003786/1.032, allocations: 69.8 kB / 0.6131 GB, free: 120.2 MB / 426.8 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01232/1.044, allocations: 12.87 MB / 0.6257 GB, free: 107.6 MB / 426.8 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.003387/1.048, allocations: 5.259 MB / 0.6308 GB, free: 102.2 MB / 426.8 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01114/1.059, allocations: 6.752 MB / 0.6374 GB, free: 95.66 MB / 426.8 MB Notification: Performance of postOpt removeConstants (simulation): time 0.001343/1.06, allocations: 0.5215 MB / 0.6379 GB, free: 95.45 MB / 426.8 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005669/1.061, allocations: 60 kB / 0.638 GB, free: 95.39 MB / 426.8 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001866/1.063, allocations: 318.1 kB / 0.6383 GB, free: 95.08 MB / 426.8 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000637/1.063, allocations: 244.8 kB / 0.6385 GB, free: 94.84 MB / 426.8 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002105/1.064, allocations: 102 kB / 0.6386 GB, free: 94.75 MB / 426.8 MB Notification: Performance of sorting global known variables: time 0.002874/1.066, allocations: 2.255 MB / 0.6408 GB, free: 92.52 MB / 426.8 MB Notification: Performance of sort global known variables: time 2.61e-07/1.066, allocations: 0 / 0.6408 GB, free: 92.52 MB / 426.8 MB Notification: Performance of remove unused functions: time 0.007712/1.074, allocations: 2.13 MB / 0.6429 GB, free: 90.4 MB / 426.8 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 16 * Number of states: 8 ($STATESET2.x[2],$STATESET2.x[1],$STATESET1.x[2],$STATESET1.x[1],joint.phi_a,joint.phi_b,joint.w_a,joint.w_b) * 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 (280): * Single equations (assignments): 272 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 3 systems {(4,19,75.0%), (3,17,100.0%), (3,8,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(3,12)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0009049/1.075, allocations: 312.2 kB / 0.6432 GB, free: 90.15 MB / 426.8 MB Notification: Performance of simCode: created initialization part: time 0.009048/1.084, allocations: 6.974 MB / 0.65 GB, free: 83.37 MB / 426.8 MB Notification: Performance of simCode: created event and clocks part: time 7.564e-06/1.084, allocations: 0 / 0.65 GB, free: 83.37 MB / 426.8 MB Notification: Performance of simCode: created simulation system equations: time 0.003429/1.088, allocations: 2.95 MB / 0.6529 GB, free: 80.34 MB / 426.8 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003432/1.091, allocations: 0.8319 MB / 0.6537 GB, free: 79.57 MB / 426.8 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01828/1.109, allocations: 14.34 MB / 0.6677 GB, free: 65.06 MB / 426.8 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.002003/1.111, allocations: 2.231 MB / 0.6699 GB, free: 62.8 MB / 426.8 MB Notification: Performance of simCode: alias equations: time 0.004674/1.116, allocations: 2.526 MB / 0.6724 GB, free: 60.27 MB / 426.8 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001111/1.117, allocations: 384.4 kB / 0.6727 GB, free: 59.89 MB / 426.8 MB Notification: Performance of SimCode: time 2.124e-06/1.117, allocations: 3.938 kB / 0.6727 GB, free: 59.89 MB / 426.8 MB Notification: Performance of Templates: time 0.2415/1.359, allocations: 79.54 MB / 0.7504 GB, free: 125.3 MB / 426.8 MB " [Timeout remaining time 659] make -j1 -f Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.makefile [Timeout 660] (rm -f Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.pipe ; mkfifo Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.pipe ; head -c 1048576 < Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.pipe >> ../files/Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.sim & ./Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint -abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS > Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint.pipe 2>&1) [Timeout 240] diffSimulationResults("Modelica_trunk_Modelica.Mechanics.MultiBody.Examples.Constraints.UniversalConstraint_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Mechanics/MultiBody/Examples/Constraints/UniversalConstraint/UniversalConstraint.csv","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 5.895631819032133]