Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.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 0.001221/0.001221, allocations: 92.2 kB / 20.21 MB, free: 4.207 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 0.0008881/0.0008881, allocations: 157.3 kB / 23.51 MB, free: 0.9023 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+maint.om/package.mo): time 0.8826/0.8826, allocations: 177.2 MB / 203.9 MB, free: 5.586 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo): time 1.953/1.953, allocations: 428.5 MB / 0.6727 GB, free: 4.914 MB / 0.6355 GB " [Timeout remaining time 177] Using package Buildings with version 14.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo) Using package Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.1.0+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(Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|wseCon.wseCWST|wseCon.wseCHWST|wseCon.TWetBul|wseCon.y1|wseCon.y2",fileNamePrefix="Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl") translateModel(Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|wseCon.wseCWST|wseCon.wseCHWST|wseCon.TWetBul|wseCon.y1|wseCon.y2",fileNamePrefix="Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.673e-06/1.673e-06, allocations: 0 / 0.8763 GB, free: 8.684 MB / 0.8386 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.912e-05/3.08e-05, allocations: 2.312 kB / 0.8763 GB, free: 8.68 MB / 0.8386 GB Notification: Performance of NFInst.instantiate(Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl): time 0.004017/0.004048, allocations: 2.007 MB / 0.8783 GB, free: 6.688 MB / 0.8386 GB Notification: Performance of NFInst.instExpressions: time 0.001459/0.005507, allocations: 0.6928 MB / 0.8789 GB, free: 5.996 MB / 0.8386 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001847/0.005691, allocations: 7.938 kB / 0.8789 GB, free: 5.988 MB / 0.8386 GB Notification: Performance of NFTyping.typeComponents: time 0.0001857/0.005877, allocations: 35.59 kB / 0.879 GB, free: 5.953 MB / 0.8386 GB Notification: Performance of NFTyping.typeBindings: time 0.0001319/0.006009, allocations: 39.59 kB / 0.879 GB, free: 5.914 MB / 0.8386 GB Notification: Performance of NFTyping.typeClassSections: time 0.0005986/0.006608, allocations: 167.7 kB / 0.8792 GB, free: 5.75 MB / 0.8386 GB Notification: Performance of NFFlatten.flatten: time 0.00052/0.007128, allocations: 411.2 kB / 0.8796 GB, free: 5.348 MB / 0.8386 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003927/0.00752, allocations: 215.3 kB / 0.8798 GB, free: 5.141 MB / 0.8386 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002824/0.007803, allocations: 211.6 kB / 0.88 GB, free: 4.934 MB / 0.8386 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0001789/0.007982, allocations: 100.8 kB / 0.8801 GB, free: 4.836 MB / 0.8386 GB Notification: Performance of NFPackage.collectConstants: time 6.149e-05/0.008043, allocations: 40 kB / 0.8801 GB, free: 4.797 MB / 0.8386 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001075/0.008151, allocations: 51.98 kB / 0.8802 GB, free: 4.746 MB / 0.8386 GB Notification: Performance of NFScalarize.scalarize: time 9.305e-05/0.008244, allocations: 84.8 kB / 0.8802 GB, free: 4.664 MB / 0.8386 GB Notification: Performance of NFVerifyModel.verify: time 0.000123/0.008367, allocations: 99.73 kB / 0.8803 GB, free: 4.566 MB / 0.8386 GB Notification: Performance of NFConvertDAE.convert: time 0.0005602/0.008927, allocations: 467.6 kB / 0.8808 GB, free: 4.109 MB / 0.8386 GB Notification: Performance of FrontEnd - DAE generated: time 4.739e-06/0.008931, allocations: 0 / 0.8808 GB, free: 4.109 MB / 0.8386 GB Notification: Performance of FrontEnd: time 1.663e-06/0.008933, allocations: 0 / 0.8808 GB, free: 4.109 MB / 0.8386 GB Notification: Performance of Transformations before backend: time 1.011e-05/0.008943, allocations: 0.6562 kB / 0.8808 GB, free: 4.109 MB / 0.8386 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 72 * Number of variables: 72 Notification: Performance of Generate backend data structure: time 0.001012/0.009955, allocations: 0.5424 MB / 0.8813 GB, free: 3.531 MB / 0.8386 GB Notification: Performance of prepare preOptimizeDAE: time 4.364e-05/0.009999, allocations: 8.031 kB / 0.8813 GB, free: 3.523 MB / 0.8386 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003569/0.01036, allocations: 72.66 kB / 0.8814 GB, free: 3.453 MB / 0.8386 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004195/0.01078, allocations: 209.4 kB / 0.8816 GB, free: 3.223 MB / 0.8386 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.083e-05/0.01082, allocations: 25.03 kB / 0.8816 GB, free: 3.199 MB / 0.8386 GB Notification: Performance of preOpt expandDerOperator (simulation): time 5.161e-05/0.01087, allocations: 32.38 kB / 0.8816 GB, free: 3.168 MB / 0.8386 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0006746/0.01154, allocations: 337.5 kB / 0.882 GB, free: 2.828 MB / 0.8386 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.336e-05/0.01156, allocations: 0.9688 kB / 0.882 GB, free: 2.828 MB / 0.8386 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 3.499e-05/0.01159, allocations: 12.36 kB / 0.882 GB, free: 2.816 MB / 0.8386 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.298e-05/0.0116, allocations: 12.53 kB / 0.882 GB, free: 2.805 MB / 0.8386 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005615/0.01217, allocations: 247.7 kB / 0.8822 GB, free: 2.562 MB / 0.8386 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001392/0.01356, allocations: 0.7847 MB / 0.883 GB, free: 1.746 MB / 0.8386 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005806/0.01414, allocations: 244.6 kB / 0.8832 GB, free: 1.5 MB / 0.8386 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002329/0.01437, allocations: 116.7 kB / 0.8833 GB, free: 1.383 MB / 0.8386 GB Notification: Performance of preOpt evalFunc (simulation): time 2.372e-05/0.0144, allocations: 4 kB / 0.8833 GB, free: 1.379 MB / 0.8386 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003577/0.01475, allocations: 184 kB / 0.8835 GB, free: 1.188 MB / 0.8386 GB Notification: Performance of pre-optimization done (n=32): time 3.116e-06/0.01476, allocations: 0 / 0.8835 GB, free: 1.188 MB / 0.8386 GB Notification: Performance of matching and sorting (n=32): time 0.0008299/0.01559, allocations: 357.9 kB / 0.8838 GB, free: 0.832 MB / 0.8386 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.309e-05/0.01564, allocations: 63.39 kB / 0.8839 GB, free: 0.7578 MB / 0.8386 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000176/0.01581, allocations: 185.1 kB / 0.8841 GB, free: 0.5625 MB / 0.8386 GB Notification: Performance of collectPreVariables (initialization): time 3.963e-05/0.01585, allocations: 41.7 kB / 0.8841 GB, free: 0.5156 MB / 0.8386 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001201/0.01597, allocations: 164.6 kB / 0.8843 GB, free: 360 kB / 0.8386 GB Notification: Performance of collectInitialBindings (initialization): time 7.02e-05/0.01604, allocations: 83.36 kB / 0.8844 GB, free: 276 kB / 0.8386 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001208/0.01617, allocations: 82.19 kB / 0.8844 GB, free: 188 kB / 0.8386 GB Notification: Performance of setup shared object (initialization): time 0.0001325/0.0163, allocations: 334.8 kB / 0.8848 GB, free: 15.85 MB / 0.8542 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002671/0.01657, allocations: 134.6 kB / 0.8849 GB, free: 15.71 MB / 0.8542 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002883/0.01685, allocations: 191.8 kB / 0.8851 GB, free: 15.5 MB / 0.8542 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004432/0.0173, allocations: 254.7 kB / 0.8853 GB, free: 15.23 MB / 0.8542 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.199e-06/0.0173, allocations: 7.938 kB / 0.8853 GB, free: 15.22 MB / 0.8542 GB Notification: Performance of matching and sorting (n=48) (initialization): time 0.0007027/0.018, allocations: 412.6 kB / 0.8857 GB, free: 14.8 MB / 0.8542 GB Notification: Performance of prepare postOptimizeDAE: time 4.345e-05/0.01805, allocations: 37.86 kB / 0.8858 GB, free: 14.75 MB / 0.8542 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.356e-06/0.01806, allocations: 0 / 0.8858 GB, free: 14.75 MB / 0.8542 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.271e-05/0.01808, allocations: 4 kB / 0.8858 GB, free: 14.75 MB / 0.8542 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001944/0.01827, allocations: 47.84 kB / 0.8858 GB, free: 14.7 MB / 0.8542 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.08e-05/0.01828, allocations: 4 kB / 0.8858 GB, free: 14.7 MB / 0.8542 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002249/0.01851, allocations: 55.73 kB / 0.8859 GB, free: 14.64 MB / 0.8542 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.364e-05/0.01854, allocations: 19.98 kB / 0.8859 GB, free: 14.62 MB / 0.8542 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * Number of states: 0 () * Number of discrete variables: 36 ($PRE.wseCon.T1.enableFire,$PRE.wseCon.T2.enableFire,wseCon.stateGraphRoot.resume,wseCon.stateGraphRoot.suspend,wseCon.stateGraphRoot.activeSteps,wseCon.T2.t_start,$PRE.wseCon.T2.t_start,wseCon.T2.fire,wseCon.T2.enableFire,wseCon.T2.localCondition,wseCon.on.oldActive,$PRE.wseCon.on.oldActive,wseCon.on.newActive,$PRE.wseCon.on.newActive,wseCon.on.localActive,$PRE.wseCon.on.localActive,wseCon.on.active,wseCon.T1.t_start,$PRE.wseCon.T1.t_start,wseCon.T1.fire,wseCon.T1.enableFire,wseCon.T1.localCondition,wseCon.off.active,wseCon.off.oldActive,$PRE.wseCon.off.oldActive,wseCon.off.newActive,$PRE.wseCon.off.newActive,wseCon.off.localActive,$PRE.wseCon.off.localActive,wseCHWST.count,$PRE.wseCHWST.count,wseCHWST.T_start,$PRE.wseCHWST.T_start,$whenCondition1,$whenCondition2,$whenCondition3) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (47): * Single equations (assignments): 46 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0001832/0.01873, allocations: 169.8 kB / 0.886 GB, free: 14.45 MB / 0.8542 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.175e-05/0.01878, allocations: 35.84 kB / 0.8861 GB, free: 14.42 MB / 0.8542 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 5.947e-05/0.01884, allocations: 34.64 kB / 0.8861 GB, free: 14.38 MB / 0.8542 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.099e-06/0.01884, allocations: 4 kB / 0.8861 GB, free: 14.38 MB / 0.8542 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.594e-06/0.01885, allocations: 0 / 0.8861 GB, free: 14.38 MB / 0.8542 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.883e-06/0.01886, allocations: 3.984 kB / 0.8861 GB, free: 14.38 MB / 0.8542 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0009876/0.01984, allocations: 0.6198 MB / 0.8867 GB, free: 13.72 MB / 0.8542 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.826e-06/0.01985, allocations: 0 / 0.8867 GB, free: 13.72 MB / 0.8542 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001167/0.01996, allocations: 27.92 kB / 0.8867 GB, free: 13.69 MB / 0.8542 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.15e-06/0.01997, allocations: 0 / 0.8867 GB, free: 13.69 MB / 0.8542 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.214e-05/0.01999, allocations: 11.98 kB / 0.8868 GB, free: 13.68 MB / 0.8542 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.565e-06/0.01999, allocations: 0 / 0.8868 GB, free: 13.68 MB / 0.8542 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.024e-06/0.02, allocations: 0 / 0.8868 GB, free: 13.68 MB / 0.8542 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005315/0.02053, allocations: 381.5 kB / 0.8871 GB, free: 13.29 MB / 0.8542 GB Notification: Performance of postOpt removeConstants (simulation): time 2.976e-05/0.02056, allocations: 19.84 kB / 0.8871 GB, free: 13.27 MB / 0.8542 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.781e-05/0.02059, allocations: 11.98 kB / 0.8872 GB, free: 13.26 MB / 0.8542 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001921/0.02079, allocations: 27.97 kB / 0.8872 GB, free: 13.23 MB / 0.8542 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001211/0.02091, allocations: 43.92 kB / 0.8872 GB, free: 13.19 MB / 0.8542 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.019e-05/0.02093, allocations: 8 kB / 0.8872 GB, free: 13.18 MB / 0.8542 GB Notification: Performance of sorting global known variables: time 8.78e-05/0.02102, allocations: 124.9 kB / 0.8873 GB, free: 13.06 MB / 0.8542 GB Notification: Performance of sort global known variables: time 1.3e-07/0.02102, allocations: 0 / 0.8873 GB, free: 13.06 MB / 0.8542 GB Notification: Performance of remove unused functions: time 0.0004199/0.02144, allocations: 79.77 kB / 0.8874 GB, free: 12.98 MB / 0.8542 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 22 (wseCon.T1.enableFire,wseCon.T2.enableFire,wseCon.on.active,wseCon.off.active,$whenCondition3,$whenCondition2,$whenCondition1,wseCHWST.T_start,wseCHWST.count,wseCon.off.localActive,wseCon.off.newActive,wseCon.off.oldActive,wseCon.T1.localCondition,wseCon.T1.fire,wseCon.T1.t_start,wseCon.on.localActive,wseCon.on.newActive,wseCon.on.oldActive,wseCon.T2.localCondition,wseCon.T2.fire,wseCon.T2.t_start,wseCon.stateGraphRoot.activeSteps) * Number of discrete states: 3 (wseCHWST.count,wseCon.off.newActive,wseCon.on.newActive) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (32): * Single equations (assignments): 26 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 6 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.000161/0.0216, allocations: 117.2 kB / 0.8875 GB, free: 12.86 MB / 0.8542 GB Notification: Performance of simCode: created initialization part: time 0.0006253/0.02222, allocations: 344.8 kB / 0.8879 GB, free: 12.51 MB / 0.8542 GB Notification: Performance of simCode: created event and clocks part: time 2.294e-06/0.02222, allocations: 0 / 0.8879 GB, free: 12.51 MB / 0.8542 GB Notification: Performance of simCode: created simulation system equations: time 0.0002428/0.02247, allocations: 124.2 kB / 0.888 GB, free: 12.39 MB / 0.8542 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004171/0.02288, allocations: 35.59 kB / 0.888 GB, free: 12.36 MB / 0.8542 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0009271/0.02381, allocations: 487 kB / 0.8885 GB, free: 11.85 MB / 0.8542 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001398/0.02395, allocations: 142.8 kB / 0.8886 GB, free: 11.69 MB / 0.8542 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 9.68e-05/0.02405, allocations: 28.5 kB / 0.8886 GB, free: 11.66 MB / 0.8542 GB Notification: Performance of SimCode: time 1.022e-06/0.02405, allocations: 0 / 0.8886 GB, free: 11.66 MB / 0.8542 GB Notification: Performance of Templates: time 0.00569/0.02974, allocations: 3.321 MB / 0.8919 GB, free: 8.359 MB / 0.8542 GB " [Timeout remaining time 300] make -j1 -f Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.makefile [Timeout 300] (rm -f Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.pipe ; mkfifo Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.pipe ; head -c 1048576 < Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.pipe >> ../files/Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.sim & ./Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl -emit_protected > Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.pipe 2>&1) [Timeout 800] diffSimulationResults("Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Examples_ChillerPlant_DataCenter_BaseClasses_Controls_Examples_WSEControl.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Examples.ChillerPlant.DataCenter.BaseClasses.Controls.Examples.WSEControl.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 6.55663913115859]