Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.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 0.001803/0.001803, allocations: 103.6 kB / 18.95 MB, free: 2.66 MB / 14.72 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 0.002142/0.002142, allocations: 220.2 kB / 22.25 MB, free: 5.254 MB / 14.72 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 1.479/1.479, allocations: 230.6 MB / 256 MB, free: 7.773 MB / 206.1 MB
"
[Timeout remaining time 178]
loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo", uses=false) [Timeout 180]
"Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo): time 3.188/3.188, allocations: 0.49 GB / 0.7951 GB, free: 35.34 MB / 0.6231 GB
"
[Timeout remaining time 176]
Using package Buildings with version 12.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/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: "" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_ParallelFanCVF_Subsequences_Validation_ActiveAirFlow",fmuType="me",version="2.0",platforms={"static"})
"" <> buildModelFMU(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow,fileNamePrefix="Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_ParallelFanCVF_Subsequences_Validation_ActiveAirFlow",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300]
"Notification: Buildings requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed.
Notification: Performance of FrontEnd - loaded program: time 0.00214/0.00214, allocations: 69.64 kB / 1.154 GB, free: 25.48 MB / 0.9044 GB
Notification: Performance of FrontEnd - Absyn->SCode: time 0.3606/0.3627, allocations: 176.1 MB / 1.326 GB, free: 1.469 MB / 1.014 GB
Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow): time 0.002279/0.365, allocations: 0.9676 MB / 1.327 GB, free: 0.5078 MB / 1.014 GB
Notification: Performance of NFInst.instExpressions: time 0.001283/0.3663, allocations: 1.011 MB / 1.328 GB, free: 15.48 MB / 1.029 GB
Notification: Performance of NFInst.updateImplicitVariability: time 8.205e-05/0.3664, allocations: 4 kB / 1.328 GB, free: 15.48 MB / 1.029 GB
Notification: Performance of NFTyping.typeComponents: time 5.281e-05/0.3664, allocations: 19.73 kB / 1.328 GB, free: 15.46 MB / 1.029 GB
Notification: Performance of NFTyping.typeBindings: time 0.0001081/0.3665, allocations: 19.81 kB / 1.328 GB, free: 15.44 MB / 1.029 GB
Notification: Performance of NFTyping.typeClassSections: time 0.0002386/0.3668, allocations: 67.86 kB / 1.328 GB, free: 15.38 MB / 1.029 GB
Notification: Performance of NFFlatten.flatten: time 0.0001916/0.3669, allocations: 160.1 kB / 1.328 GB, free: 15.22 MB / 1.029 GB
Notification: Performance of NFFlatten.resolveConnections: time 0.0001736/0.3671, allocations: 72.83 kB / 1.328 GB, free: 15.14 MB / 1.029 GB
Notification: Performance of NFEvalConstants.evaluate: time 0.000195/0.3673, allocations: 83.64 kB / 1.328 GB, free: 15.06 MB / 1.029 GB
Notification: Performance of NFSimplifyModel.simplify: time 0.0001076/0.3674, allocations: 75.69 kB / 1.328 GB, free: 14.99 MB / 1.029 GB
Notification: Performance of NFPackage.collectConstants: time 3.12e-05/0.3674, allocations: 23.92 kB / 1.328 GB, free: 14.96 MB / 1.029 GB
Notification: Performance of NFFlatten.collectFunctions: time 5.119e-05/0.3675, allocations: 20 kB / 1.328 GB, free: 14.95 MB / 1.029 GB
Notification: Performance of NFScalarize.scalarize: time 4.048e-05/0.3675, allocations: 35.86 kB / 1.328 GB, free: 14.91 MB / 1.029 GB
Notification: Performance of NFVerifyModel.verify: time 6.625e-05/0.3676, allocations: 55.72 kB / 1.328 GB, free: 14.86 MB / 1.029 GB
Notification: Performance of NFConvertDAE.convert: time 0.0002779/0.3679, allocations: 219 kB / 1.329 GB, free: 14.64 MB / 1.029 GB
Notification: Performance of FrontEnd - DAE generated: time 3.747e-06/0.3679, allocations: 0 / 1.329 GB, free: 14.64 MB / 1.029 GB
Notification: Performance of FrontEnd: time 1.393e-06/0.3679, allocations: 0 / 1.329 GB, free: 14.64 MB / 1.029 GB
Notification: Performance of Transformations before backend: time 5.17e-06/0.3679, allocations: 0 / 1.329 GB, free: 14.64 MB / 1.029 GB
Notification: Model statistics after passing the front-end and creating the data structures used by the back-end:
 * Number of equations: 35
 * Number of variables: 35
Notification: Performance of Generate backend data structure: time 0.0006632/0.3686, allocations: 377.6 kB / 1.329 GB, free: 14.24 MB / 1.029 GB
Notification: Performance of prepare preOptimizeDAE: time 3.832e-05/0.3686, allocations: 16.03 kB / 1.329 GB, free: 14.22 MB / 1.029 GB
Notification: Performance of preOpt introduceOutputAliases (simulation): time 7.108e-05/0.3687, allocations: 50.73 kB / 1.329 GB, free: 14.16 MB / 1.029 GB
Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001464/0.3688, allocations: 24.83 kB / 1.329 GB, free: 14.14 MB / 1.029 GB
Notification: Performance of preOpt evaluateParameters (simulation): time 0.000431/0.3692, allocations: 186.7 kB / 1.329 GB, free: 13.93 MB / 1.029 GB
Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.382e-05/0.3693, allocations: 16.31 kB / 1.329 GB, free: 13.92 MB / 1.029 GB
Notification: Performance of preOpt expandDerOperator (simulation): time 2.589e-05/0.3693, allocations: 12.38 kB / 1.329 GB, free: 13.91 MB / 1.029 GB
Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003534/0.3696, allocations: 154 kB / 1.329 GB, free: 13.75 MB / 1.029 GB
Notification: Performance of preOpt findStateOrder (simulation): time 1.109e-05/0.3697, allocations: 3.938 kB / 1.329 GB, free: 13.75 MB / 1.029 GB
Notification: Performance of preOpt replaceEdgeChange (simulation): time 1.882e-05/0.3697, allocations: 8 kB / 1.329 GB, free: 13.74 MB / 1.029 GB
Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.638e-06/0.3697, allocations: 0 / 1.329 GB, free: 13.74 MB / 1.029 GB
Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003478/0.37, allocations: 115.9 kB / 1.33 GB, free: 13.62 MB / 1.029 GB
Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0006811/0.3707, allocations: 423.3 kB / 1.33 GB, free: 13.17 MB / 1.029 GB
Notification: Performance of preOpt comSubExp (simulation): time 0.0003279/0.371, allocations: 114.6 kB / 1.33 GB, free: 13.05 MB / 1.029 GB
Notification: Performance of preOpt resolveLoops (simulation): time 0.0001592/0.3712, allocations: 56.7 kB / 1.33 GB, free: 12.99 MB / 1.029 GB
Notification: Performance of preOpt evalFunc (simulation): time 2.218e-05/0.3712, allocations: 4 kB / 1.33 GB, free: 12.98 MB / 1.029 GB
Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.001e-05/0.3713, allocations: 34.56 kB / 1.33 GB, free: 12.94 MB / 1.029 GB
Notification: Performance of pre-optimization done (n=12): time 1.202e-06/0.3713, allocations: 0 / 1.33 GB, free: 12.94 MB / 1.029 GB
Notification: Performance of matching and sorting (n=12): time 0.0005709/0.3718, allocations: 169.5 kB / 1.33 GB, free: 12.77 MB / 1.029 GB
Notification: Performance of inlineWhenForInitialization (initialization): time 4.489e-05/0.3719, allocations: 55.41 kB / 1.33 GB, free: 12.7 MB / 1.029 GB
Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001645/0.372, allocations: 168.3 kB / 1.331 GB, free: 12.52 MB / 1.029 GB
Notification: Performance of collectPreVariables (initialization): time 2.045e-05/0.3721, allocations: 25.7 kB / 1.331 GB, free: 12.49 MB / 1.029 GB
Notification: Performance of collectInitialEqns (initialization): time 9.506e-05/0.3721, allocations: 120.4 kB / 1.331 GB, free: 12.37 MB / 1.029 GB
Notification: Performance of collectInitialBindings (initialization): time 3.29e-05/0.3722, allocations: 31.73 kB / 1.331 GB, free: 12.34 MB / 1.029 GB
Notification: Performance of simplifyInitialFunctions (initialization): time 7.099e-05/0.3723, allocations: 41.66 kB / 1.331 GB, free: 12.29 MB / 1.029 GB
Notification: Performance of setup shared object (initialization): time 0.0001615/0.3724, allocations: 326.8 kB / 1.331 GB, free: 11.96 MB / 1.029 GB
Notification: Performance of preBalanceInitialSystem (initialization): time 0.000194/0.3726, allocations: 51.84 kB / 1.331 GB, free: 11.91 MB / 1.029 GB
Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001679/0.3728, allocations: 71.39 kB / 1.331 GB, free: 11.83 MB / 1.029 GB
Notification: Performance of analyzeInitialSystem (initialization): time 0.0003019/0.3731, allocations: 115.2 kB / 1.331 GB, free: 11.7 MB / 1.029 GB
Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.659e-06/0.3731, allocations: 4 kB / 1.331 GB, free: 11.7 MB / 1.029 GB
Notification: Performance of matching and sorting (n=15) (initialization): time 0.00038/0.3735, allocations: 149.5 kB / 1.331 GB, free: 11.55 MB / 1.029 GB
Notification: Performance of prepare postOptimizeDAE: time 1.696e-05/0.3735, allocations: 8 kB / 1.331 GB, free: 11.54 MB / 1.029 GB
Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.839e-06/0.3735, allocations: 0 / 1.331 GB, free: 11.54 MB / 1.029 GB
Notification: Performance of postOpt tearingSystem (initialization): time 1.576e-05/0.3735, allocations: 0 / 1.331 GB, free: 11.54 MB / 1.029 GB
Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001781/0.3737, allocations: 27.92 kB / 1.331 GB, free: 11.51 MB / 1.029 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.365e-06/0.3737, allocations: 4 kB / 1.331 GB, free: 11.51 MB / 1.029 GB
Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001075/0.3738, allocations: 15.94 kB / 1.331 GB, free: 11.49 MB / 1.029 GB
Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.584e-05/0.3738, allocations: 7.984 kB / 1.331 GB, free: 11.48 MB / 1.029 GB
Notification: Model statistics after passing the back-end for initialization:
 * Number of independent subsystems: 4
 * Number of states: 0 ()
 * Number of discrete variables: 9 (reaToInt2.y,actAirSet.or2.y,actAirSet.ifSetUp.y,actAirSet.ifCooDow.y,actAirSet.ifOcc.y,actAirSet.or3.y,actAirSet.setUpMod.y,actAirSet.cooDowMod.y,actAirSet.occMod.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for initialization (15):
 * Single equations (assignments): 15
 * Array equations: 0
 * Algorithm blocks: 0
 * 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 0.0001377/0.3739, allocations: 144.5 kB / 1.332 GB, free: 11.34 MB / 1.029 GB
Notification: Performance of postOpt lateInlineFunction (simulation): time 3.77e-05/0.374, allocations: 7.953 kB / 1.332 GB, free: 11.33 MB / 1.029 GB
Notification: Performance of postOpt wrapFunctionCalls (simulation): time 4.226e-05/0.374, allocations: 20.66 kB / 1.332 GB, free: 11.3 MB / 1.029 GB
Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.134e-06/0.374, allocations: 0 / 1.332 GB, free: 11.3 MB / 1.029 GB
Notification: Performance of postOpt constantLinearSystem (simulation): time 4.97e-06/0.374, allocations: 0 / 1.332 GB, free: 11.3 MB / 1.029 GB
Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.796e-06/0.374, allocations: 0 / 1.332 GB, free: 11.3 MB / 1.029 GB
Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0002658/0.3743, allocations: 204.5 kB / 1.332 GB, free: 11.06 MB / 1.029 GB
Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.092e-06/0.3743, allocations: 0 / 1.332 GB, free: 11.06 MB / 1.029 GB
Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001407/0.3744, allocations: 23.92 kB / 1.332 GB, free: 11.04 MB / 1.029 GB
Notification: Performance of postOpt tearingSystem (simulation): time 4.919e-06/0.3745, allocations: 3.984 kB / 1.332 GB, free: 11.04 MB / 1.029 GB
Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.152e-05/0.3745, allocations: 8 kB / 1.332 GB, free: 11.03 MB / 1.029 GB
Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.222e-06/0.3745, allocations: 0 / 1.332 GB, free: 11.03 MB / 1.029 GB
Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.51e-07/0.3745, allocations: 0 / 1.332 GB, free: 11.03 MB / 1.029 GB
Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004057/0.3749, allocations: 227.4 kB / 1.332 GB, free: 10.79 MB / 1.029 GB
Notification: Performance of postOpt removeConstants (simulation): time 1.921e-05/0.3749, allocations: 11.91 kB / 1.332 GB, free: 10.78 MB / 1.029 GB
Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 2.24e-05/0.3749, allocations: 4 kB / 1.332 GB, free: 10.77 MB / 1.029 GB
Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001226/0.375, allocations: 19.86 kB / 1.332 GB, free: 10.75 MB / 1.029 GB
Notification: Performance of postOpt findZeroCrossings (simulation): time 6.72e-05/0.3751, allocations: 15.97 kB / 1.332 GB, free: 10.74 MB / 1.029 GB
Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.839e-06/0.3751, allocations: 8 kB / 1.332 GB, free: 10.73 MB / 1.029 GB
Notification: Performance of sorting global known variables: time 7.921e-05/0.3752, allocations: 107.2 kB / 1.332 GB, free: 10.62 MB / 1.029 GB
Notification: Performance of sort global known variables: time 8e-08/0.3752, allocations: 0 / 1.332 GB, free: 10.62 MB / 1.029 GB
Notification: Performance of remove unused functions: time 0.0002587/0.3754, allocations: 31.89 kB / 1.332 GB, free: 10.59 MB / 1.029 GB
Notification: Model statistics after passing the back-end for simulation:
 * Number of independent subsystems: 1
 * Number of states: 0 ()
 * Number of discrete variables: 6 (actAirSet.or3.y,actAirSet.ifOcc.y,actAirSet.ifCooDow.y,actAirSet.ifSetUp.y,actAirSet.or2.y,reaToInt2.y)
 * Number of discrete states: 0 ()
 * Number of clocked states: 0 ()
 * Top-level inputs: 0
Notification: Strong component statistics for simulation (12):
 * Single equations (assignments): 12
 * Array equations: 0
 * Algorithm blocks: 0
 * 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 Backend phase and start with SimCode phase: time 0.0007116/0.3762, allocations: 0.7697 MB / 1.333 GB, free: 9.801 MB / 1.029 GB
Notification: Performance of simCode: created initialization part: time 0.0003929/0.3766, allocations: 119.8 kB / 1.333 GB, free: 9.684 MB / 1.029 GB
Notification: Performance of simCode: created event and clocks part: time 2.004e-06/0.3766, allocations: 0 / 1.333 GB, free: 9.684 MB / 1.029 GB
Notification: Performance of simCode: created simulation system equations: time 0.0001639/0.3767, allocations: 59.89 kB / 1.333 GB, free: 9.625 MB / 1.029 GB
Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0003682/0.3771, allocations: 17.97 kB / 1.333 GB, free: 9.609 MB / 1.029 GB
Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002414/0.3795, allocations: 1.746 MB / 1.335 GB, free: 7.762 MB / 1.029 GB
Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001119/0.3796, allocations: 103.2 kB / 1.335 GB, free: 7.641 MB / 1.029 GB
Notification: Performance of simCode: alias equations: time 8.679e-05/0.3797, allocations: 21.06 kB / 1.335 GB, free: 7.621 MB / 1.029 GB
Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001004/0.3798, allocations: 51.42 kB / 1.335 GB, free: 7.57 MB / 1.029 GB
Notification: Performance of SimCode: time 6.02e-07/0.3798, allocations: 0 / 1.335 GB, free: 7.57 MB / 1.029 GB
Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03021/0.41, allocations: 3.356 MB / 1.338 GB, free: 4.406 MB / 1.029 GB
Notification: Performance of buildModelFMU: Generate platform static: time 11.17/11.58, allocations: 144 / 1.338 GB, free: 4.406 MB / 1.029 GB
"
[Timeout remaining time 288]
(rm -f Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.pipe ; mkfifo Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.pipe ; head -c 1048576 < Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.pipe >> ../files/Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow_res.mat --tempDir=temp_Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_ParallelFanCVF_Subsequences_Validation_ActiveAirFlow_fmu --startTime=0 --stopTime=3600 --stepSize=1.44 --timeout=400 --tolerance=1e-06 Buildings_12_Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_ParallelFanCVF_Subsequences_Validation_ActiveAirFlow.fmu > Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.pipe 2>&1) [Timeout 420.0]
diffSimulationResults("Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_ParallelFanCVF_Subsequences_Validation_ActiveAirFlow.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.ParallelFanCVF.Subsequences.Validation.ActiveAirFlow.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: 18.334964116016636]