Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.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 0.001737/0.001737, allocations: 99.64 kB / 18.94 MB, free: 2.551 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 0.001819/0.001819, allocations: 212.3 kB / 22.24 MB, free: 4.855 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 1.457/1.457, allocations: 230.6 MB / 256 MB, free: 7.789 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo): time 2.767/2.767, allocations: 476 MB / 0.7699 GB, free: 4.703 MB / 0.6231 GB " [Timeout remaining time 177] Using package Buildings with version 11.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.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.TraceSubstanceConservationDynamicBalance,fileNamePrefix="Buildings_11_Buildings_Fluid_MixingVolumes_Validation_TraceSubstanceConservationDynamicBalance",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance,fileNamePrefix="Buildings_11_Buildings_Fluid_MixingVolumes_Validation_TraceSubstanceConservationDynamicBalance",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 0.002015/0.002015, allocations: 65.03 kB / 1.117 GB, free: 40.59 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3136/0.3156, allocations: 170 MB / 1.283 GB, free: 12.22 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance): time 0.2151/0.5307, allocations: 165.6 MB / 1.444 GB, free: 6.023 MB / 1.139 GB Notification: Performance of NFInst.instExpressions: time 0.01756/0.5482, allocations: 12.02 MB / 1.456 GB, free: 9.965 MB / 1.154 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001133/0.5494, allocations: 43.62 kB / 1.456 GB, free: 9.922 MB / 1.154 GB Notification: Performance of NFTyping.typeComponents: time 0.001304/0.5507, allocations: 429.2 kB / 1.456 GB, free: 9.5 MB / 1.154 GB Notification: Performance of NFTyping.typeBindings: time 0.003052/0.5537, allocations: 1.213 MB / 1.458 GB, free: 8.281 MB / 1.154 GB Notification: Performance of NFTyping.typeClassSections: time 0.001805/0.5555, allocations: 0.7129 MB / 1.458 GB, free: 7.57 MB / 1.154 GB Notification: Performance of NFFlatten.flatten: time 0.002658/0.5582, allocations: 2.049 MB / 1.46 GB, free: 5.52 MB / 1.154 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0009772/0.5592, allocations: 0.6098 MB / 1.461 GB, free: 4.887 MB / 1.154 GB Notification: Performance of NFEvalConstants.evaluate: time 0.004035/0.5632, allocations: 1.868 MB / 1.463 GB, free: 3.012 MB / 1.154 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001677/0.5649, allocations: 0.6797 MB / 1.463 GB, free: 2.336 MB / 1.154 GB Notification: Performance of NFPackage.collectConstants: time 0.0001664/0.565, allocations: 80 kB / 1.464 GB, free: 2.258 MB / 1.154 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001743/0.5668, allocations: 0.7364 MB / 1.464 GB, free: 1.52 MB / 1.154 GB Notification: Performance of NFScalarize.scalarize: time 0.0004498/0.5672, allocations: 394.9 kB / 1.465 GB, free: 1.133 MB / 1.154 GB Notification: Performance of NFVerifyModel.verify: time 0.0005089/0.5677, allocations: 422.1 kB / 1.465 GB, free: 0.7188 MB / 1.154 GB Notification: Performance of NFConvertDAE.convert: time 0.002227/0.57, allocations: 1.483 MB / 1.466 GB, free: 15.23 MB / 1.17 GB Notification: Performance of FrontEnd - DAE generated: time 4.018e-06/0.57, allocations: 3.938 kB / 1.466 GB, free: 15.23 MB / 1.17 GB Notification: Performance of FrontEnd: time 2.425e-06/0.57, allocations: 0 / 1.466 GB, free: 15.23 MB / 1.17 GB Notification: Performance of Transformations before backend: time 1.389e-05/0.57, allocations: 0 / 1.466 GB, free: 15.23 MB / 1.17 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 186 * Number of variables: 186 Notification: Performance of Generate backend data structure: time 0.001903/0.5719, allocations: 1.186 MB / 1.468 GB, free: 14.01 MB / 1.17 GB Notification: Performance of prepare preOptimizeDAE: time 4.427e-05/0.5719, allocations: 12.03 kB / 1.468 GB, free: 14 MB / 1.17 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001487/0.5721, allocations: 126.5 kB / 1.468 GB, free: 13.86 MB / 1.17 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001158/0.5732, allocations: 223.1 kB / 1.468 GB, free: 13.64 MB / 1.17 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001318/0.5746, allocations: 0.6116 MB / 1.469 GB, free: 13 MB / 1.17 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.741e-05/0.5746, allocations: 54 kB / 1.469 GB, free: 12.95 MB / 1.17 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001257/0.5747, allocations: 83.95 kB / 1.469 GB, free: 12.87 MB / 1.17 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.00148/0.5762, allocations: 1.062 MB / 1.47 GB, free: 11.69 MB / 1.17 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.903e-05/0.5763, allocations: 7.938 kB / 1.47 GB, free: 11.68 MB / 1.17 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.005e-05/0.5763, allocations: 35.94 kB / 1.47 GB, free: 11.65 MB / 1.17 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.222e-05/0.5764, allocations: 29.31 kB / 1.47 GB, free: 11.62 MB / 1.17 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001041/0.5774, allocations: 0.6099 MB / 1.47 GB, free: 11.01 MB / 1.17 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 0.004588/0.582, allocations: 3.741 MB / 1.474 GB, free: 7.125 MB / 1.17 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0008299/0.5828, allocations: 466.9 kB / 1.475 GB, free: 6.645 MB / 1.17 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0003755/0.5832, allocations: 230.5 kB / 1.475 GB, free: 6.41 MB / 1.17 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000155/0.5834, allocations: 23.98 kB / 1.475 GB, free: 6.387 MB / 1.17 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.446e-05/0.5834, allocations: 38.56 kB / 1.475 GB, free: 6.34 MB / 1.17 GB Notification: Performance of pre-optimization done (n=43): time 1.923e-06/0.5834, allocations: 0 / 1.475 GB, free: 6.34 MB / 1.17 GB Notification: Performance of matching and sorting (n=45): time 0.002929/0.5863, allocations: 1.557 MB / 1.476 GB, free: 4.746 MB / 1.17 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.839e-05/0.5864, allocations: 111.1 kB / 1.476 GB, free: 4.613 MB / 1.17 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0009495/0.5874, allocations: 0.7271 MB / 1.477 GB, free: 3.879 MB / 1.17 GB Notification: Performance of collectPreVariables (initialization): time 4.753e-05/0.5874, allocations: 37.64 kB / 1.477 GB, free: 3.836 MB / 1.17 GB Notification: Performance of collectInitialEqns (initialization): time 0.0003739/0.5878, allocations: 416.6 kB / 1.478 GB, free: 3.422 MB / 1.17 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001766/0.588, allocations: 178.5 kB / 1.478 GB, free: 3.246 MB / 1.17 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001786/0.5881, allocations: 114.3 kB / 1.478 GB, free: 3.129 MB / 1.17 GB Notification: Performance of setup shared object (initialization): time 0.0001837/0.5883, allocations: 334 kB / 1.478 GB, free: 2.797 MB / 1.17 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003166/0.5886, allocations: 185.2 kB / 1.478 GB, free: 2.613 MB / 1.17 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006735/0.5893, allocations: 0.5578 MB / 1.479 GB, free: 1.926 MB / 1.17 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) Notification: Performance of analyzeInitialSystem (initialization): time 0.002363/0.5917, allocations: 1.106 MB / 1.48 GB, free: 0.7344 MB / 1.17 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.085e-06/0.5917, allocations: 0 / 1.48 GB, free: 0.7344 MB / 1.17 GB Notification: Performance of matching and sorting (n=74) (initialization): time 0.001144/0.5928, allocations: 0.672 MB / 1.481 GB, free: 56 kB / 1.17 GB Notification: Performance of prepare postOptimizeDAE: time 2.167e-05/0.5928, allocations: 8 kB / 1.481 GB, free: 48 kB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.204e-05/0.5929, allocations: 8 kB / 1.481 GB, free: 40 kB / 1.17 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.629e-05/0.5929, allocations: 8.719 kB / 1.481 GB, free: 32 kB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0004654/0.5933, allocations: 127.8 kB / 1.481 GB, free: 15.91 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.675e-05/0.5934, allocations: 12 kB / 1.481 GB, free: 15.89 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005293/0.5939, allocations: 23.98 kB / 1.481 GB, free: 15.87 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.94e-05/0.5939, allocations: 32 kB / 1.481 GB, free: 15.84 MB / 1.186 GB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization system: vol.dynBal.medium.p = vol.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 28 * Number of states: 0 () * Number of discrete variables: 2 (intTraSubOut.local_reset,intTraSubIn.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (74): * Single equations (assignments): 74 * 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 0.0004376/0.5944, allocations: 273.5 kB / 1.481 GB, free: 15.56 MB / 1.186 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001737/0.5946, allocations: 95.36 kB / 1.481 GB, free: 15.47 MB / 1.186 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0001845/0.5947, allocations: 87.67 kB / 1.481 GB, free: 15.38 MB / 1.186 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.509e-05/0.5948, allocations: 8 kB / 1.481 GB, free: 15.37 MB / 1.186 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.155e-06/0.5948, allocations: 0 / 1.481 GB, free: 15.37 MB / 1.186 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0008305/0.5956, allocations: 0.6988 MB / 1.482 GB, free: 14.59 MB / 1.186 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002572/0.5982, allocations: 1.521 MB / 1.483 GB, free: 12.96 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.095e-06/0.5982, allocations: 8.562 kB / 1.483 GB, free: 12.96 MB / 1.186 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004503/0.5986, allocations: 103.8 kB / 1.484 GB, free: 12.86 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.745e-06/0.5986, allocations: 4.094 kB / 1.484 GB, free: 12.85 MB / 1.186 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 3.645e-05/0.5987, allocations: 16 kB / 1.484 GB, free: 12.84 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.591e-05/0.5987, allocations: 8 kB / 1.484 GB, free: 12.83 MB / 1.186 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.558e-06/0.5987, allocations: 11.92 kB / 1.484 GB, free: 12.82 MB / 1.186 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001224/0.5999, allocations: 0.8694 MB / 1.484 GB, free: 11.88 MB / 1.186 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003198/0.6002, allocations: 143.3 kB / 1.485 GB, free: 11.74 MB / 1.186 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001005/0.6003, allocations: 20 kB / 1.485 GB, free: 11.72 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004256/0.6008, allocations: 18.39 kB / 1.485 GB, free: 11.7 MB / 1.186 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.493e-05/0.6008, allocations: 39.83 kB / 1.485 GB, free: 11.66 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 3.574e-05/0.6009, allocations: 19.98 kB / 1.485 GB, free: 11.64 MB / 1.186 GB Notification: Performance of sorting global known variables: time 0.0006921/0.6016, allocations: 0.5146 MB / 1.485 GB, free: 11.13 MB / 1.186 GB Notification: Performance of sort global known variables: time 8e-08/0.6016, allocations: 0 / 1.485 GB, free: 11.13 MB / 1.186 GB Notification: Performance of remove unused functions: time 0.0007533/0.6023, allocations: 199.9 kB / 1.485 GB, free: 10.94 MB / 1.186 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 17 * Number of states: 5 (vol.dynBal.medium.Xi[1],vol.dynBal.U,vol.dynBal.mC[1],intTraSubIn.y,intTraSubOut.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 (45): * Single equations (assignments): 45 * 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 0.001913/0.6042, allocations: 1.486 MB / 1.487 GB, free: 9.387 MB / 1.186 GB Notification: Performance of simCode: created initialization part: time 0.0008306/0.6051, allocations: 461.5 kB / 1.487 GB, free: 8.938 MB / 1.186 GB Notification: Performance of simCode: created event and clocks part: time 3.637e-06/0.6051, allocations: 0 / 1.487 GB, free: 8.938 MB / 1.186 GB Notification: Performance of simCode: created simulation system equations: time 0.0003196/0.6054, allocations: 204 kB / 1.487 GB, free: 8.738 MB / 1.186 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002049/0.6074, allocations: 486 kB / 1.488 GB, free: 8.277 MB / 1.186 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.009924/0.6174, allocations: 6.637 MB / 1.494 GB, free: 1.234 MB / 1.186 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005511/0.6179, allocations: 436.9 kB / 1.495 GB, free: 0.7812 MB / 1.186 GB Notification: Performance of simCode: alias equations: time 0.0007301/0.6186, allocations: 199 kB / 1.495 GB, free: 0.582 MB / 1.186 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0004475/0.6191, allocations: 299.3 kB / 1.495 GB, free: 296 kB / 1.186 GB Notification: Performance of SimCode: time 8.92e-07/0.6191, allocations: 4 kB / 1.495 GB, free: 292 kB / 1.186 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.09288/0.712, allocations: 24.61 MB / 1.519 GB, free: 8.266 MB / 1.217 GB Notification: Performance of buildModelFMU: Generate platform static: time 12.21/12.93, allocations: 8 kB / 1.519 GB, free: 8.258 MB / 1.217 GB " [Timeout remaining time 286] (rm -f Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.pipe ; mkfifo Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.pipe >> ../files/Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.sim & python3 -m fmpy simulate --output-file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv --start-time 0 --stop-time 1 --timeout 400 --relative-tolerance 1e-08 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_11_Buildings_Fluid_MixingVolumes_Validation_TraceSubstanceConservationDynamicBalance.fmu > Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_MixingVolumes_Validation_TraceSubstanceConservationDynamicBalance.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "Error: Could not read variable senTraSubIn.C in file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv. Warning: Get data of variable senTraSubIn.C from file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv failed! Error: Could not read variable senTraSubOut.C in file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv. Warning: Get data of variable senTraSubOut.C from file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv failed! Error: Could not read variable cheConMas.y in file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv. Warning: Get data of variable cheConMas.y from file Buildings_11_Buildings.Fluid.MixingVolumes.Validation.TraceSubstanceConservationDynamicBalance_res.csv failed! " [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 19.62420619186014]