Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.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 0.001786/0.001786, allocations: 107.1 kB / 20.44 MB, free: 1.195 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 0.002333/0.002333, allocations: 203.6 kB / 23.73 MB, free: 4.402 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 1.504/1.504, allocations: 230.6 MB / 257.5 MB, free: 7.816 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/package.mo): time 0.2462/0.2462, allocations: 46.96 MB / 360.9 MB, free: 4.07 MB / 286.1 MB " [Timeout remaining time 180] Using package ModelicaTest with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.1.0+maint.om/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(ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir,fileNamePrefix="ModelicaTest_4_1_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir,fileNamePrefix="ModelicaTest_4_1_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.002078/0.002078, allocations: 63.89 kB / 0.4961 GB, free: 7.746 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3528/0.3548, allocations: 66.04 MB / 0.5606 GB, free: 4.266 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir): time 0.2164/0.5712, allocations: 168.7 MB / 0.7254 GB, free: 10.89 MB / 0.5606 GB Notification: Performance of NFInst.instExpressions: time 0.01076/0.582, allocations: 6.819 MB / 0.732 GB, free: 4.047 MB / 0.5606 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0008918/0.5829, allocations: 27.75 kB / 0.7321 GB, free: 4.02 MB / 0.5606 GB Notification: Performance of NFTyping.typeComponents: time 0.001458/0.5843, allocations: 413.5 kB / 0.7325 GB, free: 3.613 MB / 0.5606 GB Notification: Performance of NFTyping.typeBindings: time 0.007085/0.5914, allocations: 2.404 MB / 0.7348 GB, free: 1.203 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.323/0.9144, allocations: 2.359 MB / 0.7371 GB, free: 3.398 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.002912/0.9173, allocations: 2.202 MB / 0.7393 GB, free: 3.391 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0007172/0.918, allocations: 0.5078 MB / 0.7398 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003987/0.922, allocations: 1.875 MB / 0.7416 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001182/0.9232, allocations: 0.89 MB / 0.7425 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.0001425/0.9233, allocations: 93.62 kB / 0.7426 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006902/0.9302, allocations: 4.27 MB / 0.7467 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0004946/0.9307, allocations: 444.6 kB / 0.7471 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0006578/0.9314, allocations: 460.9 kB / 0.7476 GB, free: 3.359 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.007092/0.9385, allocations: 3.686 MB / 0.7512 GB, free: 3.156 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 6.211e-06/0.9385, allocations: 0 / 0.7512 GB, free: 3.156 MB / 0.5606 GB Notification: Performance of FrontEnd: time 2.705e-06/0.9385, allocations: 0.875 kB / 0.7512 GB, free: 3.156 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 2.546e-05/0.9385, allocations: 0 / 0.7512 GB, free: 3.156 MB / 0.5606 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 0.00412/0.9426, allocations: 1.697 MB / 0.7528 GB, free: 18.31 MB / 0.5762 GB Notification: Performance of prepare preOptimizeDAE: time 4.308e-05/0.9427, allocations: 8.625 kB / 0.7529 GB, free: 18.31 MB / 0.5762 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001447/0.9428, allocations: 126.5 kB / 0.753 GB, free: 18.27 MB / 0.5762 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003983/0.9432, allocations: 117.8 kB / 0.7531 GB, free: 18.22 MB / 0.5762 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001078/0.9443, allocations: 0.5582 MB / 0.7536 GB, free: 18.01 MB / 0.5762 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001484/0.9445, allocations: 170.9 kB / 0.7538 GB, free: 17.88 MB / 0.5762 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001242/0.9446, allocations: 69.44 kB / 0.7539 GB, free: 17.88 MB / 0.5762 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001672/0.9462, allocations: 1.567 MB / 0.7554 GB, free: 17.21 MB / 0.5762 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.549e-05/0.9463, allocations: 7.047 kB / 0.7554 GB, free: 17.2 MB / 0.5762 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.897e-05/0.9464, allocations: 36.78 kB / 0.7554 GB, free: 17.2 MB / 0.5762 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 6.784e-05/0.9464, allocations: 60.98 kB / 0.7555 GB, free: 17.2 MB / 0.5762 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001469/0.9479, allocations: 1.151 MB / 0.7566 GB, free: 17.19 MB / 0.5762 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 0.005429/0.9533, allocations: 3.804 MB / 0.7603 GB, free: 15.74 MB / 0.5762 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001419/0.9547, allocations: 0.7881 MB / 0.7611 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005011/0.9552, allocations: 404.7 kB / 0.7615 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0005482/0.9558, allocations: 210.2 kB / 0.7617 GB, free: 15.7 MB / 0.5762 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.212e-05/0.9558, allocations: 47.06 kB / 0.7617 GB, free: 15.65 MB / 0.5762 GB Notification: Performance of pre-optimization done (n=70): time 2.355e-06/0.9558, allocations: 0.9062 kB / 0.7617 GB, free: 15.65 MB / 0.5762 GB Notification: Performance of matching and sorting (n=82): time 0.01178/0.9676, allocations: 3.944 MB / 0.7656 GB, free: 15.25 MB / 0.5762 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.29e-05/0.9677, allocations: 113.5 kB / 0.7657 GB, free: 15.13 MB / 0.5762 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006895/0.9684, allocations: 0.6803 MB / 0.7664 GB, free: 14.98 MB / 0.5762 GB Notification: Performance of collectPreVariables (initialization): time 9.393e-05/0.9685, allocations: 39.7 kB / 0.7664 GB, free: 14.95 MB / 0.5762 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002055/0.9687, allocations: 397.3 kB / 0.7668 GB, free: 14.75 MB / 0.5762 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001798/0.9689, allocations: 304.8 kB / 0.7671 GB, free: 14.55 MB / 0.5762 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002587/0.9691, allocations: 197 kB / 0.7673 GB, free: 14.53 MB / 0.5762 GB Notification: Performance of setup shared object (initialization): time 0.0001921/0.9693, allocations: 386.7 kB / 0.7676 GB, free: 14.22 MB / 0.5762 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0008146/0.9702, allocations: 497.7 kB / 0.7681 GB, free: 14.22 MB / 0.5762 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0009592/0.9711, allocations: 0.8101 MB / 0.7689 GB, free: 13.86 MB / 0.5762 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001828/0.9729, allocations: 1.281 MB / 0.7701 GB, free: 13.57 MB / 0.5762 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 5.02e-06/0.9729, allocations: 5.562 kB / 0.7701 GB, free: 13.57 MB / 0.5762 GB Notification: Performance of matching and sorting (n=124) (initialization): time 0.003026/0.976, allocations: 1.668 MB / 0.7718 GB, free: 13.46 MB / 0.5762 GB Notification: Performance of prepare postOptimizeDAE: time 2.332e-05/0.976, allocations: 7.156 kB / 0.7718 GB, free: 13.46 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.333e-05/0.976, allocations: 9.75 kB / 0.7718 GB, free: 13.46 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.006577/0.9826, allocations: 1.303 MB / 0.7731 GB, free: 13.44 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006873/0.9833, allocations: 157 kB / 0.7732 GB, free: 13.44 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002866/0.9861, allocations: 1.531 MB / 0.7747 GB, free: 12.9 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001093/0.9872, allocations: 54.58 kB / 0.7748 GB, free: 12.9 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001189/0.9873, allocations: 52.47 kB / 0.7748 GB, free: 12.9 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 35 * Number of states: 0 () * Number of discrete variables: 4 (volume.regularFlow[1],volume.regularFlow[2],volume.inFlow[2],volume.inFlow[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (89): * Single equations (assignments): 88 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(3,33)} Notification: Performance of prepare postOptimizeDAE: time 0.0006552/0.988, allocations: 298.1 kB / 0.7751 GB, free: 12.78 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002126/0.9882, allocations: 92.31 kB / 0.7752 GB, free: 12.73 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.003238/0.9915, allocations: 1.672 MB / 0.7768 GB, free: 12.6 MB / 0.5762 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.446e-05/0.9915, allocations: 9.812 kB / 0.7768 GB, free: 12.6 MB / 0.5762 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.494e-06/0.9915, allocations: 3.094 kB / 0.7768 GB, free: 12.6 MB / 0.5762 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.328e-05/0.9915, allocations: 9.797 kB / 0.7768 GB, free: 12.6 MB / 0.5762 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004256/0.9957, allocations: 2.374 MB / 0.7791 GB, free: 12.24 MB / 0.5762 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.143e-05/0.9958, allocations: 6.812 kB / 0.7792 GB, free: 12.24 MB / 0.5762 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001177/0.9969, allocations: 260.3 kB / 0.7794 GB, free: 12.24 MB / 0.5762 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001581/0.9985, allocations: 380.8 kB / 0.7798 GB, free: 12.22 MB / 0.5762 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.177e-05/0.9986, allocations: 29.75 kB / 0.7798 GB, free: 12.22 MB / 0.5762 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002693/1.001, allocations: 2.248 MB / 0.782 GB, free: 10.41 MB / 0.5762 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.276e-06/1.001, allocations: 4.25 kB / 0.782 GB, free: 10.41 MB / 0.5762 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00371/1.005, allocations: 2.035 MB / 0.784 GB, free: 10.14 MB / 0.5762 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008135/1.006, allocations: 221.1 kB / 0.7842 GB, free: 10.09 MB / 0.5762 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001804/1.006, allocations: 23.69 kB / 0.7842 GB, free: 10.09 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007949/1.007, allocations: 52.7 kB / 0.7843 GB, free: 10.09 MB / 0.5762 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001547/1.007, allocations: 70.91 kB / 0.7843 GB, free: 10.08 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.814e-05/1.007, allocations: 45.41 kB / 0.7844 GB, free: 10.08 MB / 0.5762 GB Notification: Performance of sorting global known variables: time 0.0006374/1.008, allocations: 0.4957 MB / 0.7849 GB, free: 9.988 MB / 0.5762 GB Notification: Performance of sort global known variables: time 8e-08/1.008, allocations: 0 / 0.7849 GB, free: 9.988 MB / 0.5762 GB Notification: Performance of remove unused functions: time 0.002283/1.01, allocations: 0.6944 MB / 0.7855 GB, free: 9.875 MB / 0.5762 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 3 (volume.medium.p,volume.medium.Xi[1],volume.medium.T) * 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 (82): * Single equations (assignments): 78 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 1 system {1} * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.006868/1.017, allocations: 3.294 MB / 0.7888 GB, free: 8.953 MB / 0.5762 GB Notification: Performance of simCode: created initialization part: time 0.002539/1.019, allocations: 1.187 MB / 0.7899 GB, free: 8.926 MB / 0.5762 GB Notification: Performance of simCode: created event and clocks part: time 7.204e-06/1.019, allocations: 0 / 0.7899 GB, free: 8.926 MB / 0.5762 GB Notification: Performance of simCode: created simulation system equations: time 0.001543/1.021, allocations: 0.6975 MB / 0.7906 GB, free: 8.918 MB / 0.5762 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002519/1.023, allocations: 0.532 MB / 0.7911 GB, free: 8.84 MB / 0.5762 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01637/1.04, allocations: 9.679 MB / 0.8006 GB, free: 6.039 MB / 0.5762 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005646/1.04, allocations: 454.6 kB / 0.801 GB, free: 5.93 MB / 0.5762 GB Notification: Performance of simCode: alias equations: time 0.001309/1.042, allocations: 378.8 kB / 0.8014 GB, free: 5.863 MB / 0.5762 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.000536/1.042, allocations: 331 kB / 0.8017 GB, free: 5.855 MB / 0.5762 GB Notification: Performance of SimCode: time 9.71e-07/1.042, allocations: 0 / 0.8017 GB, free: 5.855 MB / 0.5762 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.09534/1.138, allocations: 45.08 MB / 0.8457 GB, free: 12.38 MB / 0.6231 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.23/15.37, allocations: 8.047 kB / 0.8457 GB, free: 12.38 MB / 0.6231 GB " [Timeout remaining time 644] (rm -f ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe ; mkfifo ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe ; head -c 1048576 < ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe >> ../files/ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.sim & python3 -m fmpy simulate --output-file ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir_res.csv --start-time 0 --stop-time 1.01 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.000201919 ModelicaTest_4_1_0_ModelicaTest_Media_TestsWithFluid_MediaTestModels_Air_MoistAir.fmu > ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.pipe 2>&1) [Timeout 52.5] diffSimulationResults("ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir_res.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/ModelicaTest/Media/TestsWithFluid/MediaTestModels/Air/MoistAir/MoistAir.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "Error: Could not read variable Time in file ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir_res.csv. Warning: Get data of variable Time from file ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.Air.MoistAir_res.csv failed! " [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 18.742471715901047]