Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.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 0.000963/0.000963, allocations: 87.67 kB / 21.2 MB, free: 3.367 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 0.001047/0.001047, allocations: 156.5 kB / 24.55 MB, free: 12 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 1/1, allocations: 177 MB / 204.8 MB, free: 5.598 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.Fluid.Examples.Tanks.TanksWithOverflow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|lowerTank.level|lowerTank.medium.h|upperTank.level|upperTank.medium.h|hysteresis.y",fileNamePrefix="Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow") translateModel(Modelica.Fluid.Examples.Tanks.TanksWithOverflow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5000,variableFilter="time|lowerTank.level|lowerTank.medium.h|upperTank.level|upperTank.medium.h|hysteresis.y",fileNamePrefix="Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.154e-06/2.154e-06, allocations: 0 / 272.9 MB, free: 1.484 MB / 250.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 3.059e-05/3.274e-05, allocations: 5.266 kB / 272.9 MB, free: 1.48 MB / 250.7 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.Tanks.TanksWithOverflow): time 0.01175/0.01178, allocations: 9.474 MB / 282.4 MB, free: 7.953 MB / 266.7 MB Notification: Performance of NFInst.instExpressions: time 0.00754/0.01933, allocations: 5.799 MB / 288.2 MB, free: 2.145 MB / 266.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004744/0.0198, allocations: 47.56 kB / 288.2 MB, free: 2.098 MB / 266.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0006212/0.02042, allocations: 333.7 kB / 288.5 MB, free: 1.77 MB / 266.7 MB Notification: Performance of NFTyping.typeBindings: time 0.001966/0.02239, allocations: 1.461 MB / 290 MB, free: 308 kB / 266.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.1058/0.1282, allocations: 2.266 MB / 292.3 MB, free: 15.67 MB / 266.7 MB Notification: Performance of NFFlatten.flatten: time 0.003706/0.1319, allocations: 3.74 MB / 296 MB, free: 15.18 MB / 266.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001307/0.1332, allocations: 1.027 MB / 297 MB, free: 15.12 MB / 266.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.002595/0.1358, allocations: 1.878 MB / 298.9 MB, free: 15 MB / 266.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001512/0.1373, allocations: 1.35 MB / 300.3 MB, free: 14.89 MB / 266.7 MB Notification: Performance of NFPackage.collectConstants: time 0.000214/0.1375, allocations: 152.5 kB / 300.4 MB, free: 14.89 MB / 266.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001597/0.1391, allocations: 1.096 MB / 301.5 MB, free: 14.83 MB / 266.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0004346/0.1396, allocations: 0.6149 MB / 302.1 MB, free: 14.55 MB / 266.7 MB Notification: Performance of NFVerifyModel.verify: time 0.000681/0.1402, allocations: 0.5841 MB / 302.7 MB, free: 14.33 MB / 266.7 MB Notification: Performance of NFConvertDAE.convert: time 0.002193/0.1424, allocations: 2.333 MB / 305 MB, free: 13.32 MB / 266.7 MB Notification: Performance of FrontEnd - DAE generated: time 3.897e-06/0.1424, allocations: 4 kB / 305 MB, free: 13.32 MB / 266.7 MB Notification: Performance of FrontEnd: time 1.001e-06/0.1424, allocations: 0 / 305 MB, free: 13.32 MB / 266.7 MB Notification: Performance of Transformations before backend: time 1.472e-05/0.1425, allocations: 0 / 305 MB, free: 13.32 MB / 266.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 271 * Number of variables: 271 Notification: Performance of Generate backend data structure: time 0.002396/0.1449, allocations: 1.994 MB / 307 MB, free: 11.91 MB / 266.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.646e-05/0.1449, allocations: 14.2 kB / 307.1 MB, free: 11.91 MB / 266.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004126/0.1453, allocations: 281.7 kB / 307.3 MB, free: 11.77 MB / 266.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0008259/0.1461, allocations: 0.8794 MB / 308.2 MB, free: 11.2 MB / 266.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001349/0.1463, allocations: 365 kB / 308.6 MB, free: 10.84 MB / 266.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001363/0.1464, allocations: 112.8 kB / 308.7 MB, free: 10.8 MB / 266.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001284/0.1477, allocations: 1.466 MB / 310.1 MB, free: 9.695 MB / 266.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.26e-05/0.1477, allocations: 0.75 kB / 310.1 MB, free: 9.695 MB / 266.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.879e-05/0.1478, allocations: 47.44 kB / 310.2 MB, free: 9.668 MB / 266.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.249e-05/0.1479, allocations: 107.1 kB / 310.3 MB, free: 9.633 MB / 266.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001057/0.1489, allocations: 0.7176 MB / 311 MB, free: 9.387 MB / 266.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.00441/0.1533, allocations: 4.49 MB / 315.5 MB, free: 5.066 MB / 266.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001016/0.1544, allocations: 0.7627 MB / 316.3 MB, free: 4.293 MB / 266.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0004474/0.1548, allocations: 346.2 kB / 316.6 MB, free: 3.953 MB / 266.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.000211/0.155, allocations: 84.92 kB / 316.7 MB, free: 3.871 MB / 266.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.333e-05/0.155, allocations: 47.14 kB / 316.7 MB, free: 3.816 MB / 266.7 MB Notification: Performance of pre-optimization done (n=116): time 2.364e-06/0.155, allocations: 0 / 316.7 MB, free: 3.816 MB / 266.7 MB Notification: Performance of matching and sorting (n=128): time 0.006001/0.161, allocations: 3.505 MB / 320.2 MB, free: 292 kB / 266.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 3.69e-05/0.1611, allocations: 167.5 kB / 320.4 MB, free: 88 kB / 266.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006126/0.1617, allocations: 0.7544 MB / 321.2 MB, free: 15.32 MB / 282.7 MB Notification: Performance of collectPreVariables (initialization): time 8.716e-05/0.1618, allocations: 49.7 kB / 321.2 MB, free: 15.27 MB / 282.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0003065/0.1621, allocations: 0.5779 MB / 321.8 MB, free: 14.68 MB / 282.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002817/0.1624, allocations: 460.3 kB / 322.2 MB, free: 14.24 MB / 282.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003207/0.1627, allocations: 273.2 kB / 322.5 MB, free: 13.96 MB / 282.7 MB Notification: Performance of setup shared object (initialization): time 0.0001512/0.1628, allocations: 0.5355 MB / 323 MB, free: 13.42 MB / 282.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005467/0.1634, allocations: 319.4 kB / 323.3 MB, free: 13.1 MB / 282.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006818/0.1641, allocations: 0.7055 MB / 324.1 MB, free: 12.27 MB / 282.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001122/0.1652, allocations: 0.8798 MB / 324.9 MB, free: 11.32 MB / 282.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.967e-06/0.1652, allocations: 0.75 kB / 324.9 MB, free: 11.32 MB / 282.7 MB Notification: Performance of matching and sorting (n=170) (initialization): time 0.001993/0.1672, allocations: 1.355 MB / 326.3 MB, free: 9.977 MB / 282.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.791e-05/0.1672, allocations: 4.625 kB / 326.3 MB, free: 9.973 MB / 282.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.298e-06/0.1672, allocations: 8 kB / 326.3 MB, free: 9.965 MB / 282.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001684/0.1689, allocations: 0.9006 MB / 327.2 MB, free: 9.055 MB / 282.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004681/0.1694, allocations: 212.5 kB / 327.4 MB, free: 8.863 MB / 282.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003805/0.1732, allocations: 7.121 MB / 334.5 MB, free: 1.449 MB / 282.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004641/0.1736, allocations: 63.7 kB / 334.6 MB, free: 1.391 MB / 282.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.543e-05/0.1737, allocations: 63.59 kB / 334.7 MB, free: 1.332 MB / 282.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0006618/0.1744, allocations: 450.8 kB / 335.1 MB, free: 0.8867 MB / 282.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0006676/0.1751, allocations: 0.7072 MB / 335.8 MB, free: 44 kB / 282.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001098/0.1762, allocations: 0.8937 MB / 336.7 MB, free: 15.08 MB / 298.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.306e-06/0.1762, allocations: 0 / 336.7 MB, free: 15.08 MB / 298.7 MB Notification: Performance of matching and sorting (n=170) (initialization_lambda0): time 0.001894/0.1781, allocations: 1.316 MB / 338 MB, free: 13.77 MB / 298.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.15e-05/0.1781, allocations: 8 kB / 338 MB, free: 13.77 MB / 298.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.641e-06/0.1781, allocations: 4.406 kB / 338 MB, free: 13.76 MB / 298.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001147/0.1792, allocations: 0.6894 MB / 338.7 MB, free: 13.06 MB / 298.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004866/0.1797, allocations: 230 kB / 338.9 MB, free: 12.85 MB / 298.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00344/0.1832, allocations: 7.02 MB / 346 MB, free: 5.535 MB / 298.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004674/0.1836, allocations: 67.95 kB / 346 MB, free: 5.469 MB / 298.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.563e-05/0.1837, allocations: 55.97 kB / 346.1 MB, free: 5.414 MB / 298.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 21 * Number of states: 0 () * Number of discrete variables: 12 (hysteresis.y,$PRE.hysteresis.y,lowerTank.inFlow[2],lowerTank.inFlow[1],lowerTank.regularFlow[2],lowerTank.regularFlow[1],upperTank.inFlow[3],upperTank.inFlow[2],upperTank.inFlow[1],upperTank.regularFlow[3],upperTank.regularFlow[2],upperTank.regularFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (126): * Single equations (assignments): 121 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 5 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,6,100.0%), (1,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(2,3), (4,11), (4,11)} Notification: Performance of prepare postOptimizeDAE: time 0.000292/0.184, allocations: 358.1 kB / 346.4 MB, free: 5.07 MB / 298.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002024/0.1842, allocations: 163.3 kB / 346.6 MB, free: 4.91 MB / 298.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002125/0.1863, allocations: 1.482 MB / 348.1 MB, free: 3.418 MB / 298.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.151e-05/0.1863, allocations: 15.98 kB / 348.1 MB, free: 3.402 MB / 298.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.879e-06/0.1863, allocations: 8 kB / 348.1 MB, free: 3.395 MB / 298.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 9.077e-06/0.1864, allocations: 3.984 kB / 348.1 MB, free: 3.391 MB / 298.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003168/0.1895, allocations: 2.455 MB / 350.6 MB, free: 0.9102 MB / 298.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.717e-06/0.1895, allocations: 0 / 350.6 MB, free: 0.9102 MB / 298.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003857/0.1899, allocations: 150.6 kB / 350.7 MB, free: 0.7734 MB / 298.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.001464/0.1914, allocations: 0.8858 MB / 351.6 MB, free: 15.87 MB / 314.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.34e-05/0.1915, allocations: 35.98 kB / 351.6 MB, free: 15.84 MB / 314.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0036/0.1951, allocations: 7.139 MB / 358.8 MB, free: 8.395 MB / 314.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.082e-06/0.1951, allocations: 96 / 358.8 MB, free: 8.395 MB / 314.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002559/0.1976, allocations: 1.822 MB / 360.6 MB, free: 6.543 MB / 314.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0003607/0.198, allocations: 299.1 kB / 360.9 MB, free: 6.25 MB / 314.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001145/0.1981, allocations: 24 kB / 360.9 MB, free: 6.227 MB / 314.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003996/0.1985, allocations: 63.94 kB / 361 MB, free: 6.164 MB / 314.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002143/0.1987, allocations: 133 kB / 361.1 MB, free: 6.031 MB / 314.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.234e-05/0.1988, allocations: 51.97 kB / 361.1 MB, free: 5.98 MB / 314.7 MB Notification: Performance of sorting global known variables: time 0.0003523/0.1991, allocations: 462.9 kB / 361.6 MB, free: 5.535 MB / 314.7 MB Notification: Performance of sort global known variables: time 5.1e-08/0.1991, allocations: 4 kB / 361.6 MB, free: 5.531 MB / 314.7 MB Notification: Performance of remove unused functions: time 0.001585/0.2007, allocations: 0.8934 MB / 362.5 MB, free: 4.637 MB / 314.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 4 (upperTank.level,upperTank.medium.T,lowerTank.level,lowerTank.medium.T) * Number of discrete variables: 11 (upperTank.regularFlow[1],upperTank.regularFlow[2],upperTank.regularFlow[3],upperTank.inFlow[1],upperTank.inFlow[2],upperTank.inFlow[3],lowerTank.regularFlow[1],lowerTank.regularFlow[2],lowerTank.inFlow[1],lowerTank.inFlow[2],hysteresis.y) * Number of discrete states: 1 (hysteresis.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (93): * Single equations (assignments): 84 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 5 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,6,100.0%), (1,6,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 3 systems {(2,4), (4,14), (4,14)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007614/0.2015, allocations: 0.4895 MB / 363 MB, free: 4.172 MB / 314.7 MB Notification: Performance of simCode: created initialization part: time 0.003189/0.2047, allocations: 2.427 MB / 365.4 MB, free: 1.727 MB / 314.7 MB Notification: Performance of simCode: created event and clocks part: time 3.566e-06/0.2047, allocations: 4 kB / 365.4 MB, free: 1.723 MB / 314.7 MB Notification: Performance of simCode: created simulation system equations: time 0.001282/0.206, allocations: 1.012 MB / 366.4 MB, free: 0.6914 MB / 314.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001365/0.2073, allocations: 0.6086 MB / 367 MB, free: 116 kB / 314.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003441/0.2108, allocations: 2.454 MB / 369.5 MB, free: 13.64 MB / 330.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002293/0.211, allocations: 344.4 kB / 369.8 MB, free: 13.29 MB / 330.7 MB Notification: Performance of simCode: alias equations: time 0.0008982/0.2119, allocations: 490.5 kB / 370.3 MB, free: 12.81 MB / 330.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002363/0.2121, allocations: 115.7 kB / 370.4 MB, free: 12.7 MB / 330.7 MB Notification: Performance of SimCode: time 5.81e-07/0.2121, allocations: 0 / 370.4 MB, free: 12.7 MB / 330.7 MB Notification: Performance of Templates: time 0.04164/0.2538, allocations: 43.35 MB / 413.8 MB, free: 1.887 MB / 362.7 MB " [Timeout remaining time 660] make -j1 -f Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.makefile [Timeout 660] (rm -f Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.pipe ; mkfifo Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.pipe ; head -c 1048576 < Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.pipe >> ../files/Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.sim & ./Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow -abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS > Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow.pipe 2>&1) [Timeout 240] diffSimulationResults("Modelica_trunk_Modelica.Fluid.Examples.Tanks.TanksWithOverflow_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Fluid/Examples/Tanks/TanksWithOverflow/TanksWithOverflow.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: 4.071779531892389]