Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0008172/0.0008172, allocations: 76.81 kB / 22.28 MB, free: 2.211 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo): time 0.0009195/0.0009195, allocations: 167.5 kB / 25.7 MB, free: 7.953 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 0.9986/0.9986, allocations: 158.6 MB / 187.6 MB, free: 2.789 MB / 170.7 MB " [Timeout remaining time 179] Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.1.0+maint.om/package.mo) Using package ModelicaServices with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo) Running command: translateModel(Modelica.Fluid.Examples.Tanks.ThreeTanks,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|tank1.level|tank1.medium.T|tank2.level|tank2.medium.T|tank3.level|tank3.medium.T",fileNamePrefix="Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks") translateModel(Modelica.Fluid.Examples.Tanks.ThreeTanks,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|tank1.level|tank1.medium.T|tank2.level|tank2.medium.T|tank3.level|tank3.medium.T",fileNamePrefix="Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 3.557e-06/3.557e-06, allocations: 4 kB / 251.6 MB, free: 7.242 MB / 234.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 3.053e-05/3.408e-05, allocations: 6.25 kB / 251.6 MB, free: 7.234 MB / 234.7 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.Tanks.ThreeTanks): time 0.009506/0.00954, allocations: 11.07 MB / 262.6 MB, free: 12.11 MB / 250.7 MB Notification: Performance of NFInst.instExpressions: time 0.009826/0.01937, allocations: 6.888 MB / 269.5 MB, free: 5.199 MB / 250.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009149/0.02028, allocations: 63.44 kB / 269.6 MB, free: 5.137 MB / 250.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0008764/0.02116, allocations: 421.2 kB / 270 MB, free: 4.723 MB / 250.7 MB Notification: Performance of NFTyping.typeBindings: time 0.003103/0.02426, allocations: 1.756 MB / 271.7 MB, free: 2.957 MB / 250.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.004883/0.02914, allocations: 2.712 MB / 274.5 MB, free: 244 kB / 250.7 MB Notification: Performance of NFFlatten.flatten: time 0.006814/0.03596, allocations: 3.988 MB / 278.4 MB, free: 12.23 MB / 266.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001177/0.03713, allocations: 1.038 MB / 279.5 MB, free: 11.16 MB / 266.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.005116/0.04225, allocations: 2.011 MB / 281.5 MB, free: 9.148 MB / 266.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.001565/0.04382, allocations: 1.43 MB / 282.9 MB, free: 7.715 MB / 266.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0002079/0.04402, allocations: 156 kB / 283.1 MB, free: 7.562 MB / 266.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.004778/0.0488, allocations: 1.073 MB / 284.2 MB, free: 6.488 MB / 266.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0005231/0.04932, allocations: 0.6699 MB / 284.8 MB, free: 5.816 MB / 266.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0005983/0.04992, allocations: 0.6392 MB / 285.5 MB, free: 5.176 MB / 266.7 MB Notification: Performance of NFConvertDAE.convert: time 0.005452/0.05537, allocations: 2.29 MB / 287.8 MB, free: 2.879 MB / 266.7 MB Notification: Performance of FrontEnd - DAE generated: time 2.655e-06/0.05538, allocations: 0 / 287.8 MB, free: 2.879 MB / 266.7 MB Notification: Performance of FrontEnd: time 9.72e-07/0.05538, allocations: 0 / 287.8 MB, free: 2.879 MB / 266.7 MB Notification: Performance of Transformations before backend: time 1.501e-05/0.05539, allocations: 3.938 kB / 287.8 MB, free: 2.875 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: 261 * Number of variables: 261 Notification: Performance of Generate backend data structure: time 0.005765/0.06116, allocations: 1.851 MB / 289.6 MB, free: 0.9883 MB / 266.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.365e-05/0.06119, allocations: 15.98 kB / 289.6 MB, free: 0.9727 MB / 266.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0004653/0.06166, allocations: 228.4 kB / 289.8 MB, free: 0.75 MB / 266.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00417/0.06583, allocations: 0.8313 MB / 290.7 MB, free: 15.89 MB / 282.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001529/0.06598, allocations: 252.1 kB / 290.9 MB, free: 15.61 MB / 282.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001686/0.06615, allocations: 108 kB / 291 MB, free: 15.5 MB / 282.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001386/0.06753, allocations: 1.431 MB / 292.5 MB, free: 13.9 MB / 282.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.271e-05/0.06756, allocations: 7.953 kB / 292.5 MB, free: 13.89 MB / 282.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001006/0.06766, allocations: 43.95 kB / 292.5 MB, free: 13.85 MB / 282.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001236/0.06778, allocations: 113.9 kB / 292.6 MB, free: 13.74 MB / 282.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004119/0.0719, allocations: 0.524 MB / 293.1 MB, free: 13.19 MB / 282.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005615/0.07751, allocations: 3.109 MB / 296.3 MB, free: 10.03 MB / 282.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0006141/0.07813, allocations: 0.5741 MB / 296.8 MB, free: 9.445 MB / 282.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002581/0.07839, allocations: 207.8 kB / 297 MB, free: 9.242 MB / 282.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.001943/0.08033, allocations: 1.47 MB / 298.5 MB, free: 7.758 MB / 282.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.858e-05/0.08036, allocations: 43.56 kB / 298.5 MB, free: 7.707 MB / 282.7 MB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0003536/0.08071, allocations: 183.2 kB / 298.7 MB, free: 7.527 MB / 282.7 MB Notification: Performance of pre-optimization done (n=97): time 1.833e-06/0.08071, allocations: 0 / 298.7 MB, free: 7.527 MB / 282.7 MB Notification: Performance of matching and sorting (n=112): time 0.00611/0.08682, allocations: 2.684 MB / 301.4 MB, free: 4.824 MB / 282.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.182e-05/0.08689, allocations: 141.5 kB / 301.5 MB, free: 4.652 MB / 282.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000824/0.08771, allocations: 0.8452 MB / 302.4 MB, free: 3.789 MB / 282.7 MB Notification: Performance of collectPreVariables (initialization): time 7.246e-05/0.08778, allocations: 45.7 kB / 302.4 MB, free: 3.738 MB / 282.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0002471/0.08803, allocations: 0.5098 MB / 302.9 MB, free: 3.223 MB / 282.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0002202/0.08825, allocations: 404.4 kB / 303.3 MB, free: 2.824 MB / 282.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002679/0.08852, allocations: 267.4 kB / 303.6 MB, free: 2.555 MB / 282.7 MB Notification: Performance of setup shared object (initialization): time 0.0002237/0.08874, allocations: 301.1 kB / 303.9 MB, free: 2.258 MB / 282.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002719/0.08901, allocations: 207.5 kB / 304.1 MB, free: 2.051 MB / 282.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004234/0.08944, allocations: 0.5925 MB / 304.7 MB, free: 1.297 MB / 282.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.0007257/0.09016, allocations: 0.8071 MB / 305.5 MB, free: 364 kB / 282.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.456e-06/0.09017, allocations: 0 / 305.5 MB, free: 364 kB / 282.7 MB Notification: Performance of matching and sorting (n=181) (initialization): time 0.001073/0.09124, allocations: 0.89 MB / 306.4 MB, free: 15.45 MB / 298.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.661e-05/0.09125, allocations: 16.12 kB / 306.4 MB, free: 15.44 MB / 298.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.062e-05/0.09127, allocations: 8 kB / 306.4 MB, free: 15.43 MB / 298.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002741/0.09401, allocations: 0.9514 MB / 307.4 MB, free: 14.47 MB / 298.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006553/0.09466, allocations: 331.4 kB / 307.7 MB, free: 14.15 MB / 298.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.00088/0.09554, allocations: 0.8041 MB / 308.5 MB, free: 13.32 MB / 298.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004322/0.09597, allocations: 51.98 kB / 308.5 MB, free: 13.27 MB / 298.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.143e-05/0.09606, allocations: 55.91 kB / 308.6 MB, free: 13.21 MB / 298.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0005881/0.09664, allocations: 297.7 kB / 308.9 MB, free: 12.91 MB / 298.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000424/0.09707, allocations: 0.6076 MB / 309.5 MB, free: 12.14 MB / 298.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0008817/0.09795, allocations: 0.8225 MB / 310.3 MB, free: 11.18 MB / 298.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 4.959e-06/0.09795, allocations: 4 kB / 310.3 MB, free: 11.18 MB / 298.7 MB Notification: Performance of matching and sorting (n=181) (initialization_lambda0): time 0.001021/0.09898, allocations: 0.8779 MB / 311.2 MB, free: 10.29 MB / 298.7 MB Notification: Performance of prepare postOptimizeDAE: time 1.341e-05/0.09899, allocations: 8 kB / 311.2 MB, free: 10.28 MB / 298.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.508e-06/0.099, allocations: 12 kB / 311.2 MB, free: 10.27 MB / 298.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.002308/0.1013, allocations: 0.8078 MB / 312 MB, free: 9.453 MB / 298.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006281/0.1019, allocations: 327.5 kB / 312.3 MB, free: 9.133 MB / 298.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.0006032/0.1025, allocations: 0.7572 MB / 313.1 MB, free: 8.348 MB / 298.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0004166/0.103, allocations: 59.92 kB / 313.2 MB, free: 8.289 MB / 298.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.526e-05/0.103, allocations: 51.97 kB / 313.2 MB, free: 8.238 MB / 298.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 43 * Number of states: 0 () * Number of discrete variables: 6 (tank3.inFlow[1],tank3.regularFlow[1],tank2.inFlow[1],tank2.regularFlow[1],tank1.inFlow[1],tank1.regularFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (156): * Single equations (assignments): 155 * 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 {(8,18)} Notification: Performance of prepare postOptimizeDAE: time 0.0002127/0.1032, allocations: 263.9 kB / 313.5 MB, free: 7.973 MB / 298.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001415/0.1034, allocations: 123.9 kB / 313.6 MB, free: 7.852 MB / 298.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001627/0.105, allocations: 0.9191 MB / 314.5 MB, free: 6.918 MB / 298.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.224e-06/0.105, allocations: 12 kB / 314.5 MB, free: 6.906 MB / 298.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.076e-06/0.105, allocations: 3.984 kB / 314.5 MB, free: 6.902 MB / 298.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.044e-06/0.105, allocations: 4.047 kB / 314.5 MB, free: 6.898 MB / 298.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001863/0.1069, allocations: 1.46 MB / 316 MB, free: 5.414 MB / 298.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.076e-06/0.1069, allocations: 3.938 kB / 316 MB, free: 5.41 MB / 298.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004901/0.1074, allocations: 211.7 kB / 316.2 MB, free: 5.203 MB / 298.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.001053/0.1084, allocations: 0.608 MB / 316.8 MB, free: 4.59 MB / 298.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.022e-05/0.1085, allocations: 27.98 kB / 316.8 MB, free: 4.562 MB / 298.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0007286/0.1092, allocations: 0.8513 MB / 317.7 MB, free: 3.684 MB / 298.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.92e-07/0.1092, allocations: 3.938 kB / 317.7 MB, free: 3.68 MB / 298.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001232/0.1105, allocations: 1.051 MB / 318.7 MB, free: 2.605 MB / 298.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0002787/0.1107, allocations: 195 kB / 318.9 MB, free: 2.414 MB / 298.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001116/0.1108, allocations: 20 kB / 319 MB, free: 2.395 MB / 298.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003641/0.1112, allocations: 51.91 kB / 319 MB, free: 2.344 MB / 298.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001317/0.1113, allocations: 81.14 kB / 319.1 MB, free: 2.266 MB / 298.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.182e-05/0.1114, allocations: 35.97 kB / 319.1 MB, free: 2.23 MB / 298.7 MB Notification: Performance of sorting global known variables: time 0.0003055/0.1117, allocations: 401.5 kB / 319.5 MB, free: 1.828 MB / 298.7 MB Notification: Performance of sort global known variables: time 6e-08/0.1117, allocations: 0 / 319.5 MB, free: 1.828 MB / 298.7 MB Notification: Performance of remove unused functions: time 0.001546/0.1133, allocations: 0.87 MB / 320.4 MB, free: 0.957 MB / 298.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 6 (tank1.level,tank1.medium.T,tank2.level,tank2.medium.T,tank3.level,tank3.medium.T) * Number of discrete variables: 6 (tank1.regularFlow[1],tank1.inFlow[1],tank2.regularFlow[1],tank2.inFlow[1],tank3.regularFlow[1],tank3.inFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (90): * Single equations (assignments): 89 * 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 {(9,29)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0007441/0.114, allocations: 448.9 kB / 320.8 MB, free: 0.5078 MB / 298.7 MB Notification: Performance of simCode: created initialization part: time 0.002546/0.1165, allocations: 1.326 MB / 322.1 MB, free: 15.19 MB / 314.7 MB Notification: Performance of simCode: created event and clocks part: time 2.061e-05/0.1166, allocations: 16.5 kB / 322.2 MB, free: 15.17 MB / 314.7 MB Notification: Performance of simCode: created simulation system equations: time 0.0005796/0.1171, allocations: 413.3 kB / 322.6 MB, free: 14.77 MB / 314.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001322/0.1185, allocations: 0.6382 MB / 323.2 MB, free: 14.13 MB / 314.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002912/0.1214, allocations: 2.344 MB / 325.5 MB, free: 11.75 MB / 314.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002111/0.1216, allocations: 332.7 kB / 325.9 MB, free: 11.39 MB / 314.7 MB Notification: Performance of simCode: alias equations: time 0.000684/0.1223, allocations: 291.4 kB / 326.2 MB, free: 11.11 MB / 314.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000888/0.1232, allocations: 0.4911 MB / 326.6 MB, free: 10.61 MB / 314.7 MB Notification: Performance of SimCode: time 1.313e-06/0.1232, allocations: 0 / 326.6 MB, free: 10.61 MB / 314.7 MB Notification: Performance of Templates: time 0.153/0.2761, allocations: 38.09 MB / 364.7 MB, free: 79.77 MB / 330.7 MB " [Timeout remaining time 660] make -j1 -f Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.makefile [Timeout 660] (rm -f Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.pipe ; mkfifo Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.pipe ; head -c 1048576 < Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.pipe >> ../files/Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.sim & ./Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks -abortSlowSimulation -alarm=240 -s gbode -gbm=radauIIA3 -emit_protected -lv LOG_STATS > Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks.pipe 2>&1) [Timeout 240] diffSimulationResults("Modelica_3.2.3_Modelica.Fluid.Examples.Tanks.ThreeTanks_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v3.2.3+build.4/Modelica/Fluid/Examples/Tanks/ThreeTanks/ThreeTanks.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: 3.870170188136399]