Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001321/0.001321, allocations: 119.3 kB / 17.79 MB, free: 5.285 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00123/0.00123, allocations: 186.9 kB / 20.73 MB, free: 2.355 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.571/1.571, allocations: 225.6 MB / 249.1 MB, free: 3.609 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/PowerSystems 2.0.0-master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/PowerSystems 2.0.0-master/package.mo): time 0.18/0.18, allocations: 38.51 MB / 342.5 MB, free: 8.09 MB / 270.1 MB " [Timeout remaining time 180] Using package PowerSystems with version 2.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/PowerSystems 2.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(PowerSystems.Examples.AC3ph.Transformation.TapChanger,fileNamePrefix="PowerSystems_latest_PowerSystems_Examples_AC3ph_Transformation_TapChanger",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(PowerSystems.Examples.AC3ph.Transformation.TapChanger,fileNamePrefix="PowerSystems_latest_PowerSystems_Examples_AC3ph_Transformation_TapChanger",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.001998/0.001998, allocations: 66.73 kB / 478.6 MB, free: 33.59 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1178/0.1198, allocations: 61.24 MB / 0.5272 GB, free: 1.406 MB / 382.1 MB Notification: Performance of NFInst.instantiate(PowerSystems.Examples.AC3ph.Transformation.TapChanger): time 0.01166/0.1314, allocations: 9.171 MB / 0.5362 GB, free: 8.195 MB / 398.1 MB Notification: Performance of NFInst.instExpressions: time 0.006597/0.138, allocations: 3.388 MB / 0.5395 GB, free: 4.797 MB / 398.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001068/0.1391, allocations: 31.81 kB / 0.5395 GB, free: 4.766 MB / 398.1 MB Notification: Performance of NFTyping.typeComponents: time 0.003096/0.1422, allocations: 1.064 MB / 0.5405 GB, free: 3.699 MB / 398.1 MB Notification: Performance of NFTyping.typeBindings: time 0.003261/0.1454, allocations: 1.105 MB / 0.5416 GB, free: 2.59 MB / 398.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.002131/0.1476, allocations: 0.6899 MB / 0.5423 GB, free: 1.898 MB / 398.1 MB Notification: Performance of NFFlatten.flatten: time 0.003426/0.151, allocations: 2.375 MB / 0.5446 GB, free: 15.52 MB / 414.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001012/0.152, allocations: 0.6395 MB / 0.5452 GB, free: 14.85 MB / 414.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001778/0.1538, allocations: 1.004 MB / 0.5462 GB, free: 13.84 MB / 414.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002069/0.1559, allocations: 1.449 MB / 0.5476 GB, free: 12.39 MB / 414.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0002237/0.1561, allocations: 132 kB / 0.5478 GB, free: 12.26 MB / 414.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001205/0.1573, allocations: 0.6084 MB / 0.5484 GB, free: 11.65 MB / 414.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0009405/0.1582, allocations: 0.9507 MB / 0.5493 GB, free: 10.7 MB / 414.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001002/0.1592, allocations: 0.8979 MB / 0.5502 GB, free: 9.797 MB / 414.1 MB Notification: Performance of NFConvertDAE.convert: time 0.002678/0.1619, allocations: 2.35 MB / 0.5525 GB, free: 7.438 MB / 414.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.739e-06/0.1619, allocations: 0 / 0.5525 GB, free: 7.438 MB / 414.1 MB Notification: Performance of FrontEnd: time 1.804e-06/0.1619, allocations: 0 / 0.5525 GB, free: 7.438 MB / 414.1 MB Notification: Performance of Transformations before backend: time 3.287e-05/0.1619, allocations: 0 / 0.5525 GB, free: 7.438 MB / 414.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 423 * Number of variables: 423 Notification: Performance of Generate backend data structure: time 0.003609/0.1656, allocations: 2.059 MB / 0.5545 GB, free: 5.305 MB / 414.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.837e-05/0.1656, allocations: 19.88 kB / 0.5545 GB, free: 5.285 MB / 414.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002855/0.1659, allocations: 236.8 kB / 0.5547 GB, free: 5.043 MB / 414.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001709/0.1676, allocations: 359.4 kB / 0.5551 GB, free: 4.691 MB / 414.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002213/0.1698, allocations: 1.083 MB / 0.5561 GB, free: 3.566 MB / 414.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 8.943e-05/0.1699, allocations: 111 kB / 0.5562 GB, free: 3.457 MB / 414.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003607/0.1703, allocations: 171.8 kB / 0.5564 GB, free: 3.289 MB / 414.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003499/0.1738, allocations: 2.316 MB / 0.5586 GB, free: 0.8164 MB / 414.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.916e-05/0.1738, allocations: 15.92 kB / 0.5587 GB, free: 0.8008 MB / 414.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001364/0.1739, allocations: 59.98 kB / 0.5587 GB, free: 0.7422 MB / 414.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0005127/0.1745, allocations: 218.8 kB / 0.5589 GB, free: 0.5273 MB / 414.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.003135/0.1776, allocations: 1.85 MB / 0.5607 GB, free: 14.67 MB / 430.1 MB 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 0.01306/0.1907, allocations: 9.545 MB / 0.5701 GB, free: 4.617 MB / 430.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002382/0.193, allocations: 1.462 MB / 0.5715 GB, free: 3.098 MB / 430.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008817/0.1939, allocations: 0.5434 MB / 0.572 GB, free: 2.551 MB / 430.1 MB Notification: Performance of preOpt evalFunc (simulation): time 8.783e-05/0.194, allocations: 20.97 kB / 0.572 GB, free: 2.531 MB / 430.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00125/0.1953, allocations: 0.8567 MB / 0.5729 GB, free: 1.625 MB / 430.1 MB Notification: Performance of pre-optimization done (n=130): time 2.966e-06/0.1953, allocations: 0 / 0.5729 GB, free: 1.625 MB / 430.1 MB Notification: Performance of matching and sorting (n=131): time 0.006367/0.2016, allocations: 4.064 MB / 0.5768 GB, free: 13.47 MB / 446.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001802/0.2018, allocations: 290.3 kB / 0.5771 GB, free: 13.12 MB / 446.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001104/0.2029, allocations: 0.9186 MB / 0.578 GB, free: 12.18 MB / 446.1 MB Notification: Performance of collectPreVariables (initialization): time 7.781e-05/0.203, allocations: 49.7 kB / 0.5781 GB, free: 12.13 MB / 446.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0006598/0.2036, allocations: 0.8006 MB / 0.5788 GB, free: 11.32 MB / 446.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0003972/0.204, allocations: 472.1 kB / 0.5793 GB, free: 10.85 MB / 446.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004353/0.2045, allocations: 319.4 kB / 0.5796 GB, free: 10.54 MB / 446.1 MB Notification: Performance of setup shared object (initialization): time 0.000191/0.2047, allocations: 361.9 kB / 0.5799 GB, free: 10.18 MB / 446.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009433/0.2056, allocations: 0.5778 MB / 0.5805 GB, free: 9.598 MB / 446.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001435/0.207, allocations: 1.178 MB / 0.5817 GB, free: 8.156 MB / 446.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.002643/0.2097, allocations: 2.004 MB / 0.5836 GB, free: 5.863 MB / 446.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.227e-06/0.2097, allocations: 4 kB / 0.5836 GB, free: 5.859 MB / 446.1 MB Notification: Performance of matching and sorting (n=227) (initialization): time 0.004743/0.2144, allocations: 2.474 MB / 0.586 GB, free: 3.352 MB / 446.1 MB Notification: Performance of prepare postOptimizeDAE: time 7.532e-05/0.2145, allocations: 67.39 kB / 0.5861 GB, free: 3.273 MB / 446.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.003017/0.2175, allocations: 1.548 MB / 0.5876 GB, free: 1.711 MB / 446.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.001608/0.2191, allocations: 0.5452 MB / 0.5881 GB, free: 1.156 MB / 446.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00109/0.2202, allocations: 323.5 kB / 0.5885 GB, free: 0.8398 MB / 446.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01209/0.2323, allocations: 9.468 MB / 0.5977 GB, free: 6.816 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001164/0.2335, allocations: 71.92 kB / 0.5978 GB, free: 6.746 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001844/0.2337, allocations: 107.9 kB / 0.5979 GB, free: 6.641 MB / 462.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 86 * Number of states: 0 () * Number of discrete variables: 21 (system.initime,tapRelay1.cnt_2,$PRE.tapRelay1.cnt_2,tapRelay1.cnt_1,$PRE.tapRelay1.cnt_1,$whenCondition4,$whenCondition3,tapRelay2.cnt_2,$PRE.tapRelay2.cnt_2,tapRelay2.cnt_1,$PRE.tapRelay2.cnt_1,$whenCondition2,$whenCondition1,tapRelay1.tap_2,$PRE.tapRelay1.tap_2,tapRelay1.tap_1,$PRE.tapRelay1.tap_1,tapRelay2.tap_2,$PRE.tapRelay2.tap_2,tapRelay2.tap_1,$PRE.tapRelay2.tap_1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (175): * Single equations (assignments): 169 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 4 systems {(2,12,100.0%), (2,11,100.0%), (2,12,100.0%), (2,11,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000997/0.2347, allocations: 0.5998 MB / 0.5985 GB, free: 6.02 MB / 462.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002211/0.2349, allocations: 127.2 kB / 0.5986 GB, free: 5.895 MB / 462.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002577/0.2375, allocations: 1.535 MB / 0.6001 GB, free: 4.336 MB / 462.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.686e-05/0.2375, allocations: 15.98 kB / 0.6001 GB, free: 4.32 MB / 462.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.293e-06/0.2375, allocations: 11.94 kB / 0.6001 GB, free: 4.309 MB / 462.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.249e-05/0.2375, allocations: 3.984 kB / 0.6001 GB, free: 4.305 MB / 462.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005562/0.2431, allocations: 3.079 MB / 0.6031 GB, free: 1.137 MB / 462.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.3e-06/0.2431, allocations: 3.938 kB / 0.6031 GB, free: 1.133 MB / 462.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001368/0.2444, allocations: 299.8 kB / 0.6034 GB, free: 0.8398 MB / 462.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 1.138e-05/0.2444, allocations: 12 kB / 0.6034 GB, free: 0.8281 MB / 462.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.583e-05/0.2445, allocations: 35.98 kB / 0.6034 GB, free: 0.793 MB / 462.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.218e-05/0.2445, allocations: 11.98 kB / 0.6035 GB, free: 0.7812 MB / 462.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.445e-06/0.2445, allocations: 0 / 0.6035 GB, free: 0.7812 MB / 462.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.2485/0.493, allocations: 2.325 MB / 0.6057 GB, free: 70.8 MB / 462.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0007433/0.4938, allocations: 296.6 kB / 0.606 GB, free: 70.71 MB / 462.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001577/0.4939, allocations: 32.36 kB / 0.606 GB, free: 70.71 MB / 462.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005858/0.4945, allocations: 41.3 kB / 0.6061 GB, free: 70.71 MB / 462.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002073/0.4947, allocations: 79.91 kB / 0.6062 GB, free: 70.71 MB / 462.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.000149/0.4949, allocations: 81.27 kB / 0.6062 GB, free: 70.71 MB / 462.1 MB Notification: Performance of sorting global known variables: time 0.0008822/0.4958, allocations: 0.6021 MB / 0.6068 GB, free: 70.6 MB / 462.1 MB Notification: Performance of sort global known variables: time 9e-08/0.4958, allocations: 0 / 0.6068 GB, free: 70.6 MB / 462.1 MB Notification: Performance of remove unused functions: time 0.00144/0.4972, allocations: 422.8 kB / 0.6072 GB, free: 70.6 MB / 462.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 6 (trafo1.i1[1],trafo1.i1[2],trafo1.i1[3],trafo2.i1[1],trafo2.i1[2],trafo2.i1[3]) * Number of discrete variables: 13 ($whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,tapRelay2.tap_1,tapRelay2.tap_2,tapRelay2.cnt_1,tapRelay2.cnt_2,tapRelay1.tap_1,tapRelay1.tap_2,tapRelay1.cnt_1,tapRelay1.cnt_2,system.initime) * Number of discrete states: 12 (tapRelay1.tap_2,tapRelay1.cnt_2,$whenCondition4,tapRelay1.tap_1,tapRelay1.cnt_1,$whenCondition3,tapRelay2.tap_2,tapRelay2.cnt_2,$whenCondition2,tapRelay2.tap_1,tapRelay2.cnt_1,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (121): * Single equations (assignments): 118 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 1 * 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 0.003846/0.501, allocations: 2.919 MB / 0.6101 GB, free: 69.57 MB / 462.1 MB Notification: Performance of simCode: created initialization part: time 0.003304/0.5043, allocations: 2.263 MB / 0.6123 GB, free: 68.49 MB / 462.1 MB Notification: Performance of simCode: created event and clocks part: time 4.198e-06/0.5043, allocations: 2.062 kB / 0.6123 GB, free: 68.49 MB / 462.1 MB Notification: Performance of simCode: created simulation system equations: time 0.0008557/0.5052, allocations: 0.7777 MB / 0.6131 GB, free: 68.16 MB / 462.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.00112/0.5063, allocations: 224.9 kB / 0.6133 GB, free: 68.09 MB / 462.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01881/0.5251, allocations: 13.1 MB / 0.6261 GB, free: 61.41 MB / 462.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008981/0.526, allocations: 1.462 MB / 0.6275 GB, free: 60.59 MB / 462.1 MB Notification: Performance of simCode: alias equations: time 0.001018/0.527, allocations: 461.1 kB / 0.6279 GB, free: 60.54 MB / 462.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005405/0.5276, allocations: 0.5717 MB / 0.6285 GB, free: 60.09 MB / 462.1 MB Notification: Performance of SimCode: time 9.42e-07/0.5276, allocations: 0 / 0.6285 GB, free: 60.09 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.05994/0.5875, allocations: 27.59 MB / 0.6554 GB, free: 34.7 MB / 462.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.17/12.76, allocations: 8.938 kB / 0.6554 GB, free: 34.69 MB / 462.1 MB " [Timeout remaining time 647] (rm -f PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.pipe ; mkfifo PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.pipe ; head -c 1048576 < PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.pipe >> ../files/PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger_res.mat --tempDir=temp_PowerSystems_latest_PowerSystems_Examples_AC3ph_Transformation_TapChanger_fmu --startTime=0 --stopTime=4 --stepSize=0.0016 --timeout=50 --tolerance=1e-06 PowerSystems_latest_PowerSystems_Examples_AC3ph_Transformation_TapChanger.fmu > PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.pipe 2>&1) [Timeout 52.5] diffSimulationResults("PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork_2/OpenModelicaLibraryTesting/ReferenceFiles/PowerSystems/PowerSystems.Examples.AC3ph.Transformation.TapChanger.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork_2/OpenModelicaLibraryTesting/files/PowerSystems_latest_PowerSystems.Examples.AC3ph.Transformation.TapChanger.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 15.974232645705342]