Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.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 0.001306/0.001306, allocations: 111.1 kB / 20.44 MB, free: 1.062 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 0.001398/0.001398, allocations: 214.3 kB / 23.73 MB, free: 4.16 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 1.41/1.41, allocations: 230.6 MB / 257.5 MB, free: 7.805 MB / 206.1 MB " [Timeout remaining time 178] 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(Modelica.Mechanics.Translational.Examples.Vehicle,fileNamePrefix="Modelica_4_1_0_Modelica_Mechanics_Translational_Examples_Vehicle",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Modelica.Mechanics.Translational.Examples.Vehicle,fileNamePrefix="Modelica_4_1_0_Modelica_Mechanics_Translational_Examples_Vehicle",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.002267/0.002267, allocations: 51.92 kB / 377.7 MB, free: 2.98 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.2473/0.2495, allocations: 53.36 MB / 431.1 MB, free: 6.648 MB / 334.1 MB Notification: Performance of NFInst.instantiate(Modelica.Mechanics.Translational.Examples.Vehicle): time 0.007635/0.2572, allocations: 5.533 MB / 436.6 MB, free: 1.094 MB / 334.1 MB Notification: Performance of NFInst.instExpressions: time 0.004252/0.2614, allocations: 2.232 MB / 438.8 MB, free: 14.86 MB / 350.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006505/0.2621, allocations: 39.69 kB / 438.9 MB, free: 14.82 MB / 350.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0008382/0.2629, allocations: 421.3 kB / 439.3 MB, free: 14.4 MB / 350.1 MB Notification: Performance of NFTyping.typeBindings: time 0.001137/0.2641, allocations: 0.5046 MB / 439.8 MB, free: 13.89 MB / 350.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.000991/0.265, allocations: 0.4913 MB / 440.3 MB, free: 13.4 MB / 350.1 MB Notification: Performance of NFFlatten.flatten: time 0.00167/0.2667, allocations: 1.5 MB / 441.8 MB, free: 11.9 MB / 350.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0005977/0.2673, allocations: 345.2 kB / 442.1 MB, free: 11.54 MB / 350.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.0007426/0.2681, allocations: 0.5798 MB / 442.7 MB, free: 10.96 MB / 350.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0007469/0.2688, allocations: 0.5987 MB / 443.3 MB, free: 10.36 MB / 350.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0001776/0.269, allocations: 128 kB / 443.4 MB, free: 10.23 MB / 350.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0003249/0.2693, allocations: 180 kB / 443.6 MB, free: 10.05 MB / 350.1 MB Notification: Performance of NFScalarize.scalarize: time 0.0002861/0.2696, allocations: 310.8 kB / 443.9 MB, free: 9.75 MB / 350.1 MB Notification: Performance of NFVerifyModel.verify: time 0.0005137/0.2701, allocations: 0.513 MB / 444.4 MB, free: 9.234 MB / 350.1 MB Notification: Performance of NFConvertDAE.convert: time 0.001786/0.2719, allocations: 1.675 MB / 446.1 MB, free: 7.555 MB / 350.1 MB Notification: Performance of FrontEnd - DAE generated: time 5.821e-06/0.2719, allocations: 4 kB / 446.1 MB, free: 7.551 MB / 350.1 MB Notification: Performance of FrontEnd: time 1.633e-06/0.2719, allocations: 0 / 446.1 MB, free: 7.551 MB / 350.1 MB Notification: Performance of Transformations before backend: time 2.61e-05/0.2719, allocations: 0 / 446.1 MB, free: 7.551 MB / 350.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 249 * Number of variables: 249 Notification: Performance of Generate backend data structure: time 0.002635/0.2746, allocations: 1.532 MB / 447.6 MB, free: 5.98 MB / 350.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.886e-05/0.2746, allocations: 12.03 kB / 447.6 MB, free: 5.969 MB / 350.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001704/0.2748, allocations: 148.4 kB / 447.8 MB, free: 5.816 MB / 350.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003862/0.2752, allocations: 160 kB / 447.9 MB, free: 5.66 MB / 350.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001291/0.2765, allocations: 0.6977 MB / 448.6 MB, free: 4.934 MB / 350.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 6.687e-05/0.2765, allocations: 81.92 kB / 448.7 MB, free: 4.855 MB / 350.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001623/0.2767, allocations: 104 kB / 448.8 MB, free: 4.754 MB / 350.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001606/0.2783, allocations: 0.9118 MB / 449.7 MB, free: 3.824 MB / 350.1 MB Notification: Performance of preOpt findStateOrder (simulation): time 4.331e-05/0.2783, allocations: 11.94 kB / 449.7 MB, free: 3.812 MB / 350.1 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 9.404e-05/0.2784, allocations: 40 kB / 449.8 MB, free: 3.773 MB / 350.1 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 2.307e-05/0.2785, allocations: 24 kB / 449.8 MB, free: 3.75 MB / 350.1 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001315/0.2798, allocations: 0.6324 MB / 450.4 MB, free: 3.117 MB / 350.1 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.004891/0.2847, allocations: 2.765 MB / 453.2 MB, free: 264 kB / 350.1 MB Notification: Performance of preOpt comSubExp (simulation): time 0.001378/0.286, allocations: 0.5705 MB / 453.8 MB, free: 15.67 MB / 366.1 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005297/0.2866, allocations: 274.7 kB / 454 MB, free: 15.4 MB / 366.1 MB Notification: Performance of preOpt evalFunc (simulation): time 4.401e-05/0.2866, allocations: 8.656 kB / 454.1 MB, free: 15.39 MB / 366.1 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0006986/0.2873, allocations: 348.3 kB / 454.4 MB, free: 15.04 MB / 366.1 MB Notification: Performance of pre-optimization done (n=80): time 3.326e-06/0.2873, allocations: 0 / 454.4 MB, free: 15.04 MB / 366.1 MB Notification: Performance of matching and sorting (n=100): time 0.006294/0.2936, allocations: 2.936 MB / 457.3 MB, free: 12.07 MB / 366.1 MB Notification: Performance of inlineWhenForInitialization (initialization): time 6.004e-05/0.2937, allocations: 68.41 kB / 457.4 MB, free: 11.99 MB / 366.1 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001339/0.295, allocations: 0.9547 MB / 458.4 MB, free: 11.03 MB / 366.1 MB Notification: Performance of collectPreVariables (initialization): time 7.245e-05/0.2951, allocations: 41.7 kB / 458.4 MB, free: 10.98 MB / 366.1 MB Notification: Performance of collectInitialEqns (initialization): time 0.0004831/0.2956, allocations: 0.5321 MB / 458.9 MB, free: 10.45 MB / 366.1 MB Notification: Performance of collectInitialBindings (initialization): time 0.0003206/0.2959, allocations: 364.9 kB / 459.3 MB, free: 10.09 MB / 366.1 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002344/0.2961, allocations: 158.6 kB / 459.4 MB, free: 9.926 MB / 366.1 MB Notification: Performance of setup shared object (initialization): time 0.0001987/0.2963, allocations: 345.9 kB / 459.8 MB, free: 9.582 MB / 366.1 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0005563/0.2969, allocations: 269.9 kB / 460 MB, free: 9.316 MB / 366.1 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0006771/0.2976, allocations: 437.4 kB / 460.5 MB, free: 8.84 MB / 366.1 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001316/0.2989, allocations: 0.7483 MB / 461.2 MB, free: 8.043 MB / 366.1 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.436e-06/0.2989, allocations: 4 kB / 461.2 MB, free: 8.039 MB / 366.1 MB Notification: Performance of matching and sorting (n=125) (initialization): time 0.001975/0.3008, allocations: 1.033 MB / 462.2 MB, free: 6.988 MB / 366.1 MB Notification: Performance of prepare postOptimizeDAE: time 2.719e-05/0.3009, allocations: 8 kB / 462.3 MB, free: 6.98 MB / 366.1 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.173e-05/0.3009, allocations: 4 kB / 462.3 MB, free: 6.977 MB / 366.1 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0004511/0.3013, allocations: 141.6 kB / 462.4 MB, free: 6.832 MB / 366.1 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007515/0.3021, allocations: 204 kB / 462.6 MB, free: 6.633 MB / 366.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.003931/0.306, allocations: 3.757 MB / 466.4 MB, free: 2.656 MB / 366.1 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005349/0.3066, allocations: 31.94 kB / 466.4 MB, free: 2.625 MB / 366.1 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.284e-05/0.3066, allocations: 32 kB / 466.4 MB, free: 2.594 MB / 366.1 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 5 ($PRE.timeTableTorqueInclination.nextTimeEvent,$whenCondition1,timeTableTorqueInclination.nextTimeEventScaled,$PRE.timeTableTorqueInclination.nextTimeEventScaled,timeTableTorqueInclination.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (108): * Single equations (assignments): 106 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,4,100.0%), (1,13,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0004774/0.3071, allocations: 311.6 kB / 466.7 MB, free: 2.281 MB / 366.1 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001578/0.3073, allocations: 115.2 kB / 466.8 MB, free: 2.168 MB / 366.1 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001902/0.3092, allocations: 0.9636 MB / 467.8 MB, free: 1.188 MB / 366.1 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.105e-05/0.3092, allocations: 12 kB / 467.8 MB, free: 1.176 MB / 366.1 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.117e-06/0.3092, allocations: 128 / 467.8 MB, free: 1.176 MB / 366.1 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.31e-05/0.3092, allocations: 11.98 kB / 467.8 MB, free: 1.164 MB / 366.1 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004015/0.3132, allocations: 2.275 MB / 470.1 MB, free: 14.79 MB / 382.1 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.445e-05/0.3132, allocations: 4 kB / 470.1 MB, free: 14.78 MB / 382.1 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007659/0.314, allocations: 183.7 kB / 470.3 MB, free: 14.6 MB / 382.1 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.0003713/0.3143, allocations: 113.6 kB / 470.4 MB, free: 14.48 MB / 382.1 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.192e-05/0.3144, allocations: 32.3 kB / 470.4 MB, free: 14.45 MB / 382.1 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.003696/0.3181, allocations: 3.37 MB / 473.8 MB, free: 10.86 MB / 382.1 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.073e-06/0.3181, allocations: 7.938 kB / 473.8 MB, free: 10.85 MB / 382.1 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0026/0.3207, allocations: 1.443 MB / 475.2 MB, free: 9.344 MB / 382.1 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004167/0.3211, allocations: 175.1 kB / 475.4 MB, free: 9.172 MB / 382.1 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001126/0.3212, allocations: 36.06 kB / 475.5 MB, free: 9.137 MB / 382.1 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004031/0.3216, allocations: 23.98 kB / 475.5 MB, free: 9.113 MB / 382.1 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001551/0.3218, allocations: 80.89 kB / 475.6 MB, free: 9.035 MB / 382.1 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 6.18e-05/0.3219, allocations: 35.92 kB / 475.6 MB, free: 9 MB / 382.1 MB Notification: Performance of sorting global known variables: time 0.0009127/0.3228, allocations: 0.6785 MB / 476.3 MB, free: 8.328 MB / 382.1 MB Notification: Performance of sort global known variables: time 1e-07/0.3228, allocations: 0 / 476.3 MB, free: 8.328 MB / 382.1 MB Notification: Performance of remove unused functions: time 0.0009171/0.3237, allocations: 247.9 kB / 476.5 MB, free: 8.086 MB / 382.1 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 13 * Number of states: 10 (vehicle.mass.s,vehicle.mass.v,vehicle.windSpeed.s,vehicle.windSpeed.v,vehicle1.mass.s,vehicle1.mass.v,vehicle1.windSpeed.s,vehicle1.windSpeed.v,trailer.windSpeed.s,trailer.windSpeed.v) * Number of discrete variables: 3 ($whenCondition1,timeTableTorqueInclination.nextTimeEvent,timeTableTorqueInclination.nextTimeEventScaled) * Number of discrete states: 2 (timeTableTorqueInclination.nextTimeEvent,timeTableTorqueInclination.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (90): * Single equations (assignments): 86 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,3,100.0%), (1,9,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.004375/0.3281, allocations: 2.369 MB / 478.9 MB, free: 5.832 MB / 382.1 MB Notification: Performance of simCode: created initialization part: time 0.001997/0.3301, allocations: 1.017 MB / 479.9 MB, free: 4.793 MB / 382.1 MB Notification: Performance of simCode: created event and clocks part: time 4.208e-06/0.3301, allocations: 0.875 kB / 479.9 MB, free: 4.793 MB / 382.1 MB Notification: Performance of simCode: created simulation system equations: time 0.001138/0.3312, allocations: 0.6785 MB / 480.6 MB, free: 4.09 MB / 382.1 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001007/0.3322, allocations: 188.3 kB / 480.8 MB, free: 3.91 MB / 382.1 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01365/0.3459, allocations: 8.764 MB / 489.5 MB, free: 10.84 MB / 398.1 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0006253/0.3465, allocations: 0.5152 MB / 490 MB, free: 10.29 MB / 398.1 MB Notification: Performance of simCode: alias equations: time 0.0004454/0.3469, allocations: 119.6 kB / 490.2 MB, free: 10.17 MB / 398.1 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006483/0.3476, allocations: 439.3 kB / 490.6 MB, free: 9.738 MB / 398.1 MB Notification: Performance of SimCode: time 6.61e-07/0.3476, allocations: 0 / 490.6 MB, free: 9.738 MB / 398.1 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.06488/0.4125, allocations: 22.79 MB / 0.5013 GB, free: 3.145 MB / 414.1 MB Notification: Performance of buildModelFMU: Generate platform static: time 12.64/13.05, allocations: 0 / 0.5013 GB, free: 3.145 MB / 414.1 MB " [Timeout remaining time 647] (rm -f Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.pipe ; mkfifo Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.pipe ; head -c 1048576 < Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.pipe >> ../files/Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.sim & python3 -m fmpy simulate --output-file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv --start-time 0 --stop-time 60 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.01 Modelica_4_1_0_Modelica_Mechanics_Translational_Examples_Vehicle.fmu > Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.pipe 2>&1) [Timeout 52.5] diffSimulationResults("Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Mechanics/Translational/Examples/Vehicle/Vehicle.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "Error: Could not read variable vehicle.s in file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv. Warning: Get data of variable vehicle.s from file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv failed! Error: Could not read variable vehicle.v in file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv. Warning: Get data of variable vehicle.v from file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv failed! Error: Could not read variable vehicle1.s in file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv. Warning: Get data of variable vehicle1.s from file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv failed! Error: Could not read variable vehicle1.v in file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv. Warning: Get data of variable vehicle1.v from file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv failed! Error: Could not read variable trailer.s in file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv. Warning: Get data of variable trailer.s from file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv failed! Error: Could not read variable trailer.v in file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv. Warning: Get data of variable trailer.v from file Modelica_4.1.0_Modelica.Mechanics.Translational.Examples.Vehicle_res.csv failed! " [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 15.770982631016523]