Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.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 0.001722/0.001722, allocations: 104.2 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 0.001979/0.001979, allocations: 210.4 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 1.376/1.376, allocations: 230.6 MB / 252.8 MB, free: 9.125 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 2.982/2.982, allocations: 0.49 GB / 0.7916 GB, free: 33.34 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.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance,fileNamePrefix="Buildings_12_Buildings_ThermalZones_Detailed_BaseClasses_Examples_MixedAirHeatMassBalance",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance,fileNamePrefix="Buildings_12_Buildings_ThermalZones_Detailed_BaseClasses_Examples_MixedAirHeatMassBalance",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 0.001964/0.001964, allocations: 79.53 kB / 1.149 GB, free: 26.29 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3365/0.3385, allocations: 176.1 MB / 1.321 GB, free: 3.203 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance): time 0.2127/0.5512, allocations: 182.8 MB / 1.499 GB, free: 11.71 MB / 1.201 GB Notification: Performance of NFInst.instExpressions: time 0.01853/0.5697, allocations: 11.05 MB / 1.51 GB, free: 0.6289 MB / 1.201 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003141/0.5728, allocations: 127 kB / 1.51 GB, free: 0.5039 MB / 1.201 GB Notification: Performance of NFTyping.typeComponents: time 0.006323/0.5792, allocations: 2.009 MB / 1.512 GB, free: 14.48 MB / 1.217 GB Notification: Performance of NFTyping.typeBindings: time 0.005583/0.5847, allocations: 1.683 MB / 1.514 GB, free: 12.79 MB / 1.217 GB Notification: Performance of NFTyping.typeClassSections: time 0.002859/0.5876, allocations: 0.7907 MB / 1.515 GB, free: 12.01 MB / 1.217 GB Notification: Performance of NFFlatten.flatten: time 0.005466/0.5931, allocations: 3.148 MB / 1.518 GB, free: 8.848 MB / 1.217 GB Notification: Performance of NFFlatten.resolveConnections: time 0.002124/0.5952, allocations: 1.039 MB / 1.519 GB, free: 7.777 MB / 1.217 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002897/0.5981, allocations: 1.327 MB / 1.52 GB, free: 6.445 MB / 1.217 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002754/0.6008, allocations: 1.147 MB / 1.521 GB, free: 5.297 MB / 1.217 GB Notification: Performance of NFPackage.collectConstants: time 0.0005704/0.6014, allocations: 128 kB / 1.521 GB, free: 5.172 MB / 1.217 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002497/0.6039, allocations: 0.9667 MB / 1.522 GB, free: 4.203 MB / 1.217 GB Notification: Performance of NFScalarize.scalarize: time 0.0008605/0.6048, allocations: 481.9 kB / 1.523 GB, free: 3.73 MB / 1.217 GB Notification: Performance of NFVerifyModel.verify: time 0.002061/0.6068, allocations: 1.092 MB / 1.524 GB, free: 2.633 MB / 1.217 GB Notification: Performance of NFConvertDAE.convert: time 0.006139/0.613, allocations: 3.514 MB / 1.527 GB, free: 15.1 MB / 1.232 GB Notification: Performance of FrontEnd - DAE generated: time 5.611e-06/0.613, allocations: 4 kB / 1.527 GB, free: 15.1 MB / 1.232 GB Notification: Performance of FrontEnd: time 1.813e-06/0.613, allocations: 3.938 kB / 1.527 GB, free: 15.09 MB / 1.232 GB Notification: Performance of Transformations before backend: time 0.0001262/0.6131, allocations: 0 / 1.527 GB, free: 15.09 MB / 1.232 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 191 * Number of variables: 191 Notification: Performance of Generate backend data structure: time 0.006023/0.6191, allocations: 2.894 MB / 1.53 GB, free: 12.13 MB / 1.232 GB Notification: Performance of prepare preOptimizeDAE: time 5.01e-05/0.6192, allocations: 11.98 kB / 1.53 GB, free: 12.12 MB / 1.232 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002797/0.6195, allocations: 126.7 kB / 1.53 GB, free: 11.99 MB / 1.232 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001803/0.6213, allocations: 394 kB / 1.531 GB, free: 11.6 MB / 1.232 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004299/0.6256, allocations: 2.043 MB / 1.533 GB, free: 9.496 MB / 1.232 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.864e-05/0.6256, allocations: 62 kB / 1.533 GB, free: 9.434 MB / 1.232 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001949/0.6258, allocations: 72 kB / 1.533 GB, free: 9.363 MB / 1.232 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001831/0.6277, allocations: 0.9445 MB / 1.534 GB, free: 8.379 MB / 1.232 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.521e-05/0.6277, allocations: 0 / 1.534 GB, free: 8.379 MB / 1.232 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.826e-05/0.6278, allocations: 32 kB / 1.534 GB, free: 8.348 MB / 1.232 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.326e-05/0.6278, allocations: 28.94 kB / 1.534 GB, free: 8.32 MB / 1.232 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001262/0.6291, allocations: 0.7025 MB / 1.534 GB, free: 7.617 MB / 1.232 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 0.007577/0.6366, allocations: 4.453 MB / 1.539 GB, free: 2.949 MB / 1.232 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005495/0.6372, allocations: 300.2 kB / 1.539 GB, free: 2.648 MB / 1.232 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002787/0.6375, allocations: 172.8 kB / 1.539 GB, free: 2.477 MB / 1.232 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001963/0.6377, allocations: 101.1 kB / 1.539 GB, free: 2.359 MB / 1.232 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.079e-05/0.6377, allocations: 34.56 kB / 1.539 GB, free: 2.316 MB / 1.232 GB Notification: Performance of pre-optimization done (n=30): time 3.677e-06/0.6377, allocations: 0 / 1.539 GB, free: 2.316 MB / 1.232 GB Notification: Performance of matching and sorting (n=32): time 0.003801/0.6415, allocations: 1.748 MB / 1.541 GB, free: 500 kB / 1.232 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.728e-05/0.6416, allocations: 59.41 kB / 1.541 GB, free: 428 kB / 1.232 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.005284/0.6468, allocations: 2.946 MB / 1.544 GB, free: 13.45 MB / 1.248 GB Notification: Performance of collectPreVariables (initialization): time 7.035e-05/0.6469, allocations: 33.7 kB / 1.544 GB, free: 13.41 MB / 1.248 GB Notification: Performance of collectInitialEqns (initialization): time 0.001174/0.6481, allocations: 1.071 MB / 1.545 GB, free: 12.34 MB / 1.248 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001729/0.6483, allocations: 119 kB / 1.545 GB, free: 12.22 MB / 1.248 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002056/0.6485, allocations: 114.1 kB / 1.545 GB, free: 12.11 MB / 1.248 GB Notification: Performance of setup shared object (initialization): time 0.000148/0.6486, allocations: 326 kB / 1.546 GB, free: 11.78 MB / 1.248 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002762/0.6489, allocations: 165 kB / 1.546 GB, free: 11.62 MB / 1.248 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0004491/0.6493, allocations: 374.8 kB / 1.546 GB, free: 11.16 MB / 1.248 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: air.vol.dynBal.medium.p = air.vol.dynBal.p_start (boundary.p = air.vol.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.002305/0.6517, allocations: 1.075 MB / 1.547 GB, free: 9.984 MB / 1.248 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.749e-06/0.6517, allocations: 0 / 1.547 GB, free: 9.984 MB / 1.248 GB Notification: Performance of matching and sorting (n=62) (initialization): time 0.001555/0.6532, allocations: 0.8177 MB / 1.548 GB, free: 9.156 MB / 1.248 GB Notification: Performance of prepare postOptimizeDAE: time 2.118e-05/0.6532, allocations: 8 kB / 1.548 GB, free: 9.148 MB / 1.248 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.31e-05/0.6532, allocations: 4 kB / 1.548 GB, free: 9.145 MB / 1.248 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0002193/0.6535, allocations: 60.83 kB / 1.548 GB, free: 9.082 MB / 1.248 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0003651/0.6538, allocations: 103.8 kB / 1.548 GB, free: 8.98 MB / 1.248 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001869/0.6557, allocations: 1.857 MB / 1.55 GB, free: 6.988 MB / 1.248 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001063/0.6568, allocations: 31.95 kB / 1.55 GB, free: 6.957 MB / 1.248 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.749e-05/0.6568, allocations: 24 kB / 1.55 GB, free: 6.934 MB / 1.248 GB Warning: The initial conditions are over specified. The following 1 initial equations are redundant, so they are removed from the initialization system: air.vol.dynBal.medium.p = air.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: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (58): * Single equations (assignments): 57 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,4,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.001234/0.6581, allocations: 0.7917 MB / 1.551 GB, free: 6.133 MB / 1.248 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0005022/0.6586, allocations: 246.4 kB / 1.551 GB, free: 5.891 MB / 1.248 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006396/0.6592, allocations: 255.8 kB / 1.551 GB, free: 5.641 MB / 1.248 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 5.521e-06/0.6592, allocations: 4 kB / 1.551 GB, free: 5.637 MB / 1.248 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.608e-06/0.6592, allocations: 4 kB / 1.551 GB, free: 5.633 MB / 1.248 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.000774/0.66, allocations: 0.609 MB / 1.552 GB, free: 4.953 MB / 1.248 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003928/0.6639, allocations: 2.049 MB / 1.554 GB, free: 2.797 MB / 1.248 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.742e-06/0.6639, allocations: 4 kB / 1.554 GB, free: 2.793 MB / 1.248 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003086/0.6642, allocations: 59.91 kB / 1.554 GB, free: 2.734 MB / 1.248 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001676/0.6644, allocations: 65.22 kB / 1.554 GB, free: 2.668 MB / 1.248 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.668e-05/0.6644, allocations: 8 kB / 1.554 GB, free: 2.66 MB / 1.248 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001677/0.6661, allocations: 1.861 MB / 1.556 GB, free: 0.6602 MB / 1.248 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.593e-06/0.6661, allocations: 7.938 kB / 1.556 GB, free: 0.6523 MB / 1.248 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.001439/0.6675, allocations: 0.9358 MB / 1.557 GB, free: 15.66 MB / 1.264 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007678/0.6683, allocations: 415.4 kB / 1.557 GB, free: 15.23 MB / 1.264 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001867/0.6685, allocations: 16.12 kB / 1.557 GB, free: 15.21 MB / 1.264 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0005599/0.6691, allocations: 21.81 kB / 1.557 GB, free: 15.2 MB / 1.264 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.217e-05/0.6691, allocations: 35.91 kB / 1.557 GB, free: 15.16 MB / 1.264 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.561e-05/0.6691, allocations: 12 kB / 1.557 GB, free: 15.15 MB / 1.264 GB Notification: Performance of sorting global known variables: time 0.00312/0.6723, allocations: 2.087 MB / 1.559 GB, free: 13.06 MB / 1.264 GB Notification: Performance of sort global known variables: time 1.01e-07/0.6723, allocations: 0 / 1.559 GB, free: 13.06 MB / 1.264 GB Notification: Performance of remove unused functions: time 0.001102/0.6734, allocations: 299.9 kB / 1.559 GB, free: 12.77 MB / 1.264 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 14 * Number of states: 2 (air.vol.dynBal.medium.Xi[1],air.vol.dynBal.U) * 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 (29): * Single equations (assignments): 28 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,4,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001802/0.6752, allocations: 1.553 MB / 1.561 GB, free: 11.14 MB / 1.264 GB Notification: Performance of simCode: created initialization part: time 0.0009778/0.6761, allocations: 0.5103 MB / 1.562 GB, free: 10.62 MB / 1.264 GB Notification: Performance of simCode: created event and clocks part: time 3.727e-06/0.6762, allocations: 0 / 1.562 GB, free: 10.62 MB / 1.264 GB Notification: Performance of simCode: created simulation system equations: time 0.0004109/0.6766, allocations: 296.4 kB / 1.562 GB, free: 10.32 MB / 1.264 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003572/0.6801, allocations: 0.9523 MB / 1.563 GB, free: 9.391 MB / 1.264 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02493/0.7051, allocations: 17.16 MB / 1.579 GB, free: 7.812 MB / 1.279 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001695/0.7068, allocations: 1.953 MB / 1.581 GB, free: 5.824 MB / 1.279 GB Notification: Performance of simCode: alias equations: time 0.001091/0.7078, allocations: 338.8 kB / 1.582 GB, free: 5.488 MB / 1.279 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0009477/0.7088, allocations: 0.8 MB / 1.582 GB, free: 4.688 MB / 1.279 GB Notification: Performance of SimCode: time 9.62e-07/0.7088, allocations: 0 / 1.582 GB, free: 4.688 MB / 1.279 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.7386/1.447, allocations: 51.37 MB / 1.633 GB, free: 265.1 MB / 1.295 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.3/14.74, allocations: 16.61 kB / 1.633 GB, free: 265.1 MB / 1.295 GB " [Timeout remaining time 285] (rm -f Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.pipe ; mkfifo Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.pipe ; head -c 1048576 < Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.pipe >> ../files/Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.sim & python3 -m fmpy simulate --output-file Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance_res.csv --start-time 0 --stop-time 3600 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 1.44 Buildings_12_Buildings_ThermalZones_Detailed_BaseClasses_Examples_MixedAirHeatMassBalance.fmu > Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_ThermalZones_Detailed_BaseClasses_Examples_MixedAirHeatMassBalance.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "Error: Could not read variable air.vol.T in file Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance_res.csv. Warning: Get data of variable air.vol.T from file Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance_res.csv failed! Error: Could not read variable air.vol.Xi[1] in file Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance_res.csv. Warning: Get data of variable air.vol.Xi[1] from file Buildings_12_Buildings.ThermalZones.Detailed.BaseClasses.Examples.MixedAirHeatMassBalance_res.csv failed! " [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 21.15518105099909]