Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.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 0.001451/0.001451, allocations: 103 kB / 16.45 MB, free: 6.449 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 0.001548/0.001548, allocations: 212.9 kB / 19.43 MB, free: 3.637 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 1.401/1.401, allocations: 230.6 MB / 252.8 MB, free: 9.117 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 3.034/3.034, allocations: 0.49 GB / 0.7916 GB, free: 33.28 MB / 0.6231 GB " [Timeout remaining time 177] 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.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance,fileNamePrefix="Buildings_12_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance,fileNamePrefix="Buildings_12_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance",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 0.00195/0.00195, allocations: 70.2 kB / 1.149 GB, free: 26.35 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3344/0.3363, allocations: 176.1 MB / 1.321 GB, free: 3.27 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance): time 0.2672/0.6035, allocations: 226.5 MB / 1.542 GB, free: 15.91 MB / 1.248 GB Notification: Performance of NFInst.instExpressions: time 0.02015/0.6237, allocations: 12.17 MB / 1.554 GB, free: 3.711 MB / 1.248 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.002757/0.6264, allocations: 99.19 kB / 1.554 GB, free: 3.613 MB / 1.248 GB Notification: Performance of NFTyping.typeComponents: time 0.003225/0.6297, allocations: 0.885 MB / 1.555 GB, free: 2.723 MB / 1.248 GB Notification: Performance of NFTyping.typeBindings: time 0.008518/0.6382, allocations: 2.969 MB / 1.558 GB, free: 15.74 MB / 1.264 GB Notification: Performance of NFTyping.typeClassSections: time 0.004143/0.6423, allocations: 1.444 MB / 1.559 GB, free: 14.3 MB / 1.264 GB Notification: Performance of NFFlatten.flatten: time 0.006657/0.649, allocations: 4.446 MB / 1.564 GB, free: 9.844 MB / 1.264 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002718/0.6517, allocations: 1.471 MB / 1.565 GB, free: 8.336 MB / 1.264 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007308/0.659, allocations: 2.84 MB / 1.568 GB, free: 5.492 MB / 1.264 GB Notification: Performance of NFSimplifyModel.simplify: time 0.004133/0.6631, allocations: 1.635 MB / 1.569 GB, free: 3.867 MB / 1.264 GB Notification: Performance of NFPackage.collectConstants: time 0.001056/0.6642, allocations: 184 kB / 1.57 GB, free: 3.688 MB / 1.264 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00653/0.6707, allocations: 2.28 MB / 1.572 GB, free: 1.402 MB / 1.264 GB Notification: Performance of NFScalarize.scalarize: time 0.001401/0.6721, allocations: 0.7359 MB / 1.572 GB, free: 0.6641 MB / 1.264 GB Notification: Performance of NFVerifyModel.verify: time 0.002382/0.6745, allocations: 1.038 MB / 1.573 GB, free: 15.62 MB / 1.279 GB Notification: Performance of NFConvertDAE.convert: time 0.007007/0.6815, allocations: 3.355 MB / 1.577 GB, free: 12.25 MB / 1.279 GB Notification: Performance of FrontEnd - DAE generated: time 5.681e-06/0.6815, allocations: 4 kB / 1.577 GB, free: 12.25 MB / 1.279 GB Notification: Performance of FrontEnd: time 1.403e-06/0.6815, allocations: 0 / 1.577 GB, free: 12.25 MB / 1.279 GB Notification: Performance of Transformations before backend: time 9.948e-05/0.6816, allocations: 0 / 1.577 GB, free: 12.25 MB / 1.279 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 351 * Number of variables: 351 Notification: Performance of Generate backend data structure: time 0.005837/0.6875, allocations: 2.32 MB / 1.579 GB, free: 9.871 MB / 1.279 GB Notification: Performance of prepare preOptimizeDAE: time 5.488e-05/0.6875, allocations: 11.98 kB / 1.579 GB, free: 9.859 MB / 1.279 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0004521/0.688, allocations: 214.8 kB / 1.579 GB, free: 9.641 MB / 1.279 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003361/0.6913, allocations: 0.5139 MB / 1.58 GB, free: 9.125 MB / 1.279 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00315/0.6945, allocations: 1.35 MB / 1.581 GB, free: 7.719 MB / 1.279 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.823e-05/0.6946, allocations: 106.8 kB / 1.581 GB, free: 7.613 MB / 1.279 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002778/0.6949, allocations: 152 kB / 1.581 GB, free: 7.465 MB / 1.279 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003084/0.6979, allocations: 1.782 MB / 1.583 GB, free: 5.574 MB / 1.279 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.936e-05/0.698, allocations: 4 kB / 1.583 GB, free: 5.57 MB / 1.279 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001621/0.6981, allocations: 63.94 kB / 1.583 GB, free: 5.508 MB / 1.279 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.981e-05/0.6982, allocations: 54.55 kB / 1.583 GB, free: 5.453 MB / 1.279 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002476/0.7007, allocations: 1.431 MB / 1.585 GB, free: 4.016 MB / 1.279 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.01011/0.7108, allocations: 7.555 MB / 1.592 GB, free: 12.02 MB / 1.295 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001748/0.7125, allocations: 1.009 MB / 1.593 GB, free: 10.98 MB / 1.295 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009922/0.7135, allocations: 0.6593 MB / 1.594 GB, free: 10.3 MB / 1.295 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000233/0.7138, allocations: 122.1 kB / 1.594 GB, free: 10.16 MB / 1.295 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.153e-05/0.7138, allocations: 51.56 kB / 1.594 GB, free: 10.1 MB / 1.295 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.00142/0.7152, allocations: 350.8 kB / 1.594 GB, free: 9.758 MB / 1.295 GB Notification: Performance of pre-optimization done (n=106): time 3.436e-06/0.7152, allocations: 0 / 1.594 GB, free: 9.758 MB / 1.295 GB Notification: Performance of matching and sorting (n=112): time 0.00883/0.7241, allocations: 4.532 MB / 1.599 GB, free: 5.16 MB / 1.295 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001156/0.7242, allocations: 171.2 kB / 1.599 GB, free: 4.953 MB / 1.295 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001763/0.7259, allocations: 1.263 MB / 1.6 GB, free: 3.68 MB / 1.295 GB Notification: Performance of collectPreVariables (initialization): time 0.0001519/0.7261, allocations: 53.7 kB / 1.6 GB, free: 3.621 MB / 1.295 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006215/0.7267, allocations: 0.7136 MB / 1.601 GB, free: 2.902 MB / 1.295 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004638/0.7272, allocations: 424.4 kB / 1.601 GB, free: 2.484 MB / 1.295 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004304/0.7276, allocations: 259.5 kB / 1.601 GB, free: 2.223 MB / 1.295 GB Notification: Performance of setup shared object (initialization): time 0.0001947/0.7278, allocations: 353.9 kB / 1.602 GB, free: 1.871 MB / 1.295 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008885/0.7287, allocations: 0.527 MB / 1.602 GB, free: 1.344 MB / 1.295 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001197/0.7299, allocations: 0.8596 MB / 1.603 GB, free: 368 kB / 1.295 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol.dynBal.medium.p = vol.dynBal.p_start (sin.p = vol.dynBal.p_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol1.dynBal.medium.p = vol1.dynBal.p_start (sin.p = vol1.dynBal.p_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol2.dynBal.medium.p = vol2.dynBal.p_start (sin.p = vol2.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.6061/1.336, allocations: 4.798 MB / 1.608 GB, free: 280 MB / 1.295 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.941e-06/1.336, allocations: 1.844 kB / 1.608 GB, free: 280 MB / 1.295 GB Notification: Performance of matching and sorting (n=169) (initialization): time 0.002564/1.339, allocations: 1.62 MB / 1.609 GB, free: 279.5 MB / 1.295 GB Notification: Performance of prepare postOptimizeDAE: time 2.011e-05/1.339, allocations: 7.438 kB / 1.609 GB, free: 279.5 MB / 1.295 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.252e-05/1.339, allocations: 8 kB / 1.609 GB, free: 279.5 MB / 1.295 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.947e-05/1.339, allocations: 18.05 kB / 1.609 GB, free: 279.5 MB / 1.295 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001074/1.34, allocations: 288.2 kB / 1.61 GB, free: 279.4 MB / 1.295 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.439e-05/1.34, allocations: 25 kB / 1.61 GB, free: 279.4 MB / 1.295 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001243/1.341, allocations: 56.14 kB / 1.61 GB, free: 279.4 MB / 1.295 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.995e-05/1.341, allocations: 58.47 kB / 1.61 GB, free: 279.4 MB / 1.295 GB Warning: The initial conditions are over specified. The following 3 initial equations are redundant, so they are removed from the initialization system: vol.dynBal.medium.p = vol.dynBal.p_start vol1.dynBal.medium.p = vol1.dynBal.p_start vol2.dynBal.medium.p = vol2.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * Number of states: 0 () * Number of discrete variables: 6 (intMasVapOut.local_reset,intEntIn.local_reset,intEntOut.local_reset,intMasFloIn.local_reset,intMasFloOut.local_reset,intMasFloVapIn.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (169): * Single equations (assignments): 169 * 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 0.0006031/1.342, allocations: 425.8 kB / 1.61 GB, free: 279.1 MB / 1.295 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002912/1.342, allocations: 170.9 kB / 1.61 GB, free: 279.1 MB / 1.295 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001995/1.344, allocations: 1.293 MB / 1.612 GB, free: 278.6 MB / 1.295 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.416e-05/1.344, allocations: 13.17 kB / 1.612 GB, free: 278.6 MB / 1.295 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.735e-06/1.344, allocations: 5.797 kB / 1.612 GB, free: 278.6 MB / 1.295 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001439/1.345, allocations: 1.247 MB / 1.613 GB, free: 277.9 MB / 1.295 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006204/1.352, allocations: 3.76 MB / 1.616 GB, free: 275.9 MB / 1.295 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.154e-05/1.352, allocations: 10.55 kB / 1.616 GB, free: 275.9 MB / 1.295 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00122/1.353, allocations: 253.4 kB / 1.617 GB, free: 275.9 MB / 1.295 GB Notification: Performance of postOpt tearingSystem (simulation): time 3.188e-05/1.353, allocations: 15.38 kB / 1.617 GB, free: 275.9 MB / 1.295 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.666e-05/1.353, allocations: 37.64 kB / 1.617 GB, free: 275.9 MB / 1.295 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 3.218e-05/1.353, allocations: 24.25 kB / 1.617 GB, free: 275.8 MB / 1.295 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.969e-05/1.353, allocations: 16 kB / 1.617 GB, free: 275.8 MB / 1.295 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002622/1.356, allocations: 2.129 MB / 1.619 GB, free: 274.7 MB / 1.295 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0005717/1.356, allocations: 368.8 kB / 1.619 GB, free: 274.5 MB / 1.295 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001954/1.356, allocations: 36.97 kB / 1.619 GB, free: 274.5 MB / 1.295 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001043/1.357, allocations: 53.62 kB / 1.619 GB, free: 274.5 MB / 1.295 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001565/1.358, allocations: 102 kB / 1.619 GB, free: 274.4 MB / 1.295 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.984e-05/1.358, allocations: 54.98 kB / 1.619 GB, free: 274.4 MB / 1.295 GB Notification: Performance of sorting global known variables: time 0.00116/1.359, allocations: 0.8533 MB / 1.62 GB, free: 274.1 MB / 1.295 GB Notification: Performance of sort global known variables: time 7e-08/1.359, allocations: 0 / 1.62 GB, free: 274.1 MB / 1.295 GB Notification: Performance of remove unused functions: time 0.001432/1.36, allocations: 429.4 kB / 1.621 GB, free: 274.1 MB / 1.295 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 44 * Number of states: 12 (vol.dynBal.medium.Xi[1],vol.dynBal.U,vol1.dynBal.medium.Xi[1],vol1.dynBal.U,vol2.dynBal.medium.Xi[1],vol2.dynBal.U,intMasFloVapIn.y,intMasFloOut.y,intMasFloIn.y,intEntOut.y,intEntIn.y,intMasVapOut.y) * 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 (115): * Single equations (assignments): 115 * 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 0.002993/1.363, allocations: 2.793 MB / 1.623 GB, free: 272.3 MB / 1.295 GB Notification: Performance of simCode: created initialization part: time 0.001995/1.365, allocations: 1.189 MB / 1.625 GB, free: 271.9 MB / 1.295 GB Notification: Performance of simCode: created event and clocks part: time 1.005e-05/1.365, allocations: 3.531 kB / 1.625 GB, free: 271.9 MB / 1.295 GB Notification: Performance of simCode: created simulation system equations: time 0.0007532/1.366, allocations: 0.527 MB / 1.625 GB, free: 271.7 MB / 1.295 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003964/1.37, allocations: 0.9339 MB / 1.626 GB, free: 271.5 MB / 1.295 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01569/1.386, allocations: 12.72 MB / 1.638 GB, free: 264.7 MB / 1.295 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007531/1.386, allocations: 1.376 MB / 1.64 GB, free: 263.9 MB / 1.295 GB Notification: Performance of simCode: alias equations: time 0.001328/1.388, allocations: 386.5 kB / 1.64 GB, free: 263.9 MB / 1.295 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007234/1.389, allocations: 0.6419 MB / 1.641 GB, free: 263.4 MB / 1.295 GB Notification: Performance of SimCode: time 1.342e-06/1.389, allocations: 0 / 1.641 GB, free: 263.4 MB / 1.295 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06692/1.455, allocations: 43.23 MB / 1.683 GB, free: 223.9 MB / 1.295 GB Notification: Performance of buildModelFMU: Generate platform static: time 15.85/17.3, allocations: 13.22 kB / 1.683 GB, free: 223.9 MB / 1.295 GB " [Timeout remaining time 283] (rm -f Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe ; mkfifo Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe ; head -c 1048576 < Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe >> ../files/Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance_res.mat --tempDir=temp_Buildings_12_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=400 --tolerance=1e-06 Buildings_12_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance.fmu > Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.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: 23.73486801213585]