Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.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 0.001416/0.001416, allocations: 111 kB / 21.18 MB, free: 0.6758 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 0.001352/0.001352, allocations: 211.4 kB / 24.48 MB, free: 3.977 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 1.423/1.423, allocations: 230.6 MB / 258.2 MB, free: 7.805 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 0.2325/0.2325, allocations: 46.97 MB / 361.6 MB, free: 4.043 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: translateModel(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.p|volume.medium.T|volume.medium.X.1.|volume.medium.X.2.|volume.medium.X.3.|volume.medium.X.4.|volume.medium.X.5.|volume.medium.X.6.",fileNamePrefix="ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas") translateModel(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.p|volume.medium.T|volume.medium.X.1.|volume.medium.X.2.|volume.medium.X.3.|volume.medium.X.4.|volume.medium.X.5.|volume.medium.X.6.",fileNamePrefix="ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.001963/0.001963, allocations: 71.91 kB / 0.4973 GB, free: 7.207 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3137/0.3156, allocations: 66.03 MB / 0.5618 GB, free: 4.172 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas): time 0.1998/0.5154, allocations: 156.4 MB / 0.7145 GB, free: 7.219 MB / 0.545 GB Notification: Performance of NFInst.instExpressions: time 0.009009/0.5244, allocations: 5.979 MB / 0.7204 GB, free: 1.223 MB / 0.545 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0006925/0.5251, allocations: 31.75 kB / 0.7204 GB, free: 1.191 MB / 0.545 GB Notification: Performance of NFTyping.typeComponents: time 0.001194/0.5263, allocations: 397.7 kB / 0.7208 GB, free: 0.8008 MB / 0.545 GB Notification: Performance of NFTyping.typeBindings: time 0.00443/0.5307, allocations: 1.807 MB / 0.7225 GB, free: 15 MB / 0.5606 GB Notification: Performance of NFTyping.typeClassSections: time 0.003993/0.5347, allocations: 1.553 MB / 0.7241 GB, free: 13.45 MB / 0.5606 GB Notification: Performance of NFFlatten.flatten: time 0.002904/0.5376, allocations: 2.255 MB / 0.7263 GB, free: 11.18 MB / 0.5606 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0009976/0.5386, allocations: 0.5902 MB / 0.7268 GB, free: 10.59 MB / 0.5606 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003819/0.5424, allocations: 1.842 MB / 0.7286 GB, free: 8.742 MB / 0.5606 GB Notification: Performance of NFSimplifyModel.simplify: time 0.002863/0.5453, allocations: 1.675 MB / 0.7303 GB, free: 7.059 MB / 0.5606 GB Notification: Performance of NFPackage.collectConstants: time 0.0002203/0.5455, allocations: 96 kB / 0.7304 GB, free: 6.965 MB / 0.5606 GB Notification: Performance of NFFlatten.collectFunctions: time 0.002536/0.5481, allocations: 1.197 MB / 0.7315 GB, free: 5.766 MB / 0.5606 GB Notification: Performance of NFScalarize.scalarize: time 0.0007085/0.5488, allocations: 0.6936 MB / 0.7322 GB, free: 5.07 MB / 0.5606 GB Notification: Performance of NFVerifyModel.verify: time 0.0007984/0.5496, allocations: 0.65 MB / 0.7328 GB, free: 4.418 MB / 0.5606 GB Notification: Performance of NFConvertDAE.convert: time 0.003385/0.5529, allocations: 2.625 MB / 0.7354 GB, free: 1.785 MB / 0.5606 GB Notification: Performance of FrontEnd - DAE generated: time 3.627e-06/0.553, allocations: 0 / 0.7354 GB, free: 1.785 MB / 0.5606 GB Notification: Performance of FrontEnd: time 1.643e-06/0.553, allocations: 0 / 0.7354 GB, free: 1.785 MB / 0.5606 GB Notification: Performance of Transformations before backend: time 1.874e-05/0.553, allocations: 3.938 kB / 0.7354 GB, free: 1.781 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: 276 * Number of variables: 276 Notification: Performance of Generate backend data structure: time 0.003675/0.5566, allocations: 1.669 MB / 0.737 GB, free: 76 kB / 0.5606 GB Notification: Performance of prepare preOptimizeDAE: time 3.85e-05/0.5567, allocations: 12.03 kB / 0.737 GB, free: 64 kB / 0.5606 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.2373/0.794, allocations: 314.5 kB / 0.7373 GB, free: 175.9 MB / 0.5606 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00225/0.7963, allocations: 0.718 MB / 0.738 GB, free: 175.6 MB / 0.5606 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001832/0.7964, allocations: 196.3 kB / 0.7382 GB, free: 175.5 MB / 0.5606 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002747/0.7967, allocations: 104 kB / 0.7383 GB, free: 175.4 MB / 0.5606 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003244/0.8, allocations: 2.553 MB / 0.7408 GB, free: 173.8 MB / 0.5606 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.452e-05/0.8, allocations: 7.719 kB / 0.7408 GB, free: 173.8 MB / 0.5606 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001401/0.8001, allocations: 46.52 kB / 0.7409 GB, free: 173.8 MB / 0.5606 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.942e-05/0.8002, allocations: 89.2 kB / 0.741 GB, free: 173.8 MB / 0.5606 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00215/0.8024, allocations: 1.695 MB / 0.7426 GB, free: 173 MB / 0.5606 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 0.007212/0.8096, allocations: 4.795 MB / 0.7473 GB, free: 168.3 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00103/0.8106, allocations: 0.8536 MB / 0.7481 GB, free: 167.4 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005089/0.8111, allocations: 429.2 kB / 0.7485 GB, free: 167 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 8.586e-05/0.8112, allocations: 35.78 kB / 0.7486 GB, free: 167 MB / 0.5606 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.995e-05/0.8112, allocations: 47 kB / 0.7486 GB, free: 166.9 MB / 0.5606 GB Notification: Performance of pre-optimization done (n=60): time 2.485e-06/0.8112, allocations: 0 / 0.7486 GB, free: 166.9 MB / 0.5606 GB Notification: Performance of matching and sorting (n=72): time 0.009726/0.821, allocations: 4.021 MB / 0.7526 GB, free: 162.9 MB / 0.5606 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.464e-05/0.821, allocations: 111.5 kB / 0.7527 GB, free: 162.8 MB / 0.5606 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006138/0.8216, allocations: 0.6986 MB / 0.7533 GB, free: 162.1 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 8.749e-05/0.8217, allocations: 41.7 kB / 0.7534 GB, free: 162.1 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002138/0.8219, allocations: 0.563 MB / 0.7539 GB, free: 161.5 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001505/0.8221, allocations: 277.4 kB / 0.7542 GB, free: 161.2 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0003117/0.8224, allocations: 210.5 kB / 0.7544 GB, free: 161 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 8.585e-05/0.8225, allocations: 386.8 kB / 0.7548 GB, free: 160.6 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007254/0.8232, allocations: 0.5836 MB / 0.7553 GB, free: 160.1 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0008287/0.824, allocations: 0.9223 MB / 0.7562 GB, free: 159 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001483/0.8255, allocations: 1.446 MB / 0.7576 GB, free: 157.5 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.568e-06/0.8255, allocations: 4 kB / 0.7576 GB, free: 157.5 MB / 0.5606 GB Notification: Performance of matching and sorting (n=125) (initialization): time 0.002463/0.828, allocations: 1.953 MB / 0.7596 GB, free: 155.5 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 1.874e-05/0.828, allocations: 12 kB / 0.7596 GB, free: 155.5 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.189e-05/0.828, allocations: 8 kB / 0.7596 GB, free: 155.5 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.00439/0.8324, allocations: 1.345 MB / 0.7609 GB, free: 154.2 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005635/0.833, allocations: 147.6 kB / 0.761 GB, free: 154 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002197/0.8352, allocations: 1.919 MB / 0.7629 GB, free: 152.1 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0008315/0.836, allocations: 51.89 kB / 0.763 GB, free: 152 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001066/0.8361, allocations: 68.55 kB / 0.763 GB, free: 152 MB / 0.5606 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * 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 (82): * Single equations (assignments): 81 * 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 {(9,35)} Notification: Performance of prepare postOptimizeDAE: time 0.0005656/0.8367, allocations: 401.4 kB / 0.7634 GB, free: 151.6 MB / 0.5606 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001793/0.8368, allocations: 86.5 kB / 0.7635 GB, free: 151.5 MB / 0.5606 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002219/0.8391, allocations: 1.463 MB / 0.7649 GB, free: 150 MB / 0.5606 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.374e-06/0.8391, allocations: 11.94 kB / 0.7649 GB, free: 150 MB / 0.5606 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.462e-06/0.8391, allocations: 0 / 0.7649 GB, free: 150 MB / 0.5606 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 8.445e-06/0.8391, allocations: 7.984 kB / 0.7649 GB, free: 150 MB / 0.5606 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.003421/0.8425, allocations: 2.366 MB / 0.7672 GB, free: 147.6 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.272e-06/0.8425, allocations: 3.938 kB / 0.7672 GB, free: 147.6 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001839/0.8444, allocations: 327.5 kB / 0.7676 GB, free: 147.3 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001869/0.8445, allocations: 68.78 kB / 0.7676 GB, free: 147.2 MB / 0.5606 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 8.203e-05/0.8446, allocations: 43.84 kB / 0.7677 GB, free: 147.2 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001747/0.8464, allocations: 2.776 MB / 0.7704 GB, free: 144.2 MB / 0.5606 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.754e-06/0.8464, allocations: 0 / 0.7704 GB, free: 144.2 MB / 0.5606 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002472/0.8488, allocations: 1.885 MB / 0.7722 GB, free: 142.3 MB / 0.5606 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0006358/0.8495, allocations: 219.3 kB / 0.7724 GB, free: 142.1 MB / 0.5606 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001583/0.8496, allocations: 31.98 kB / 0.7725 GB, free: 142.1 MB / 0.5606 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008274/0.8505, allocations: 51.2 kB / 0.7725 GB, free: 142 MB / 0.5606 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001491/0.8506, allocations: 60.55 kB / 0.7726 GB, free: 142 MB / 0.5606 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 9.996e-05/0.8507, allocations: 67.94 kB / 0.7726 GB, free: 141.9 MB / 0.5606 GB Notification: Performance of sorting global known variables: time 0.000448/0.8512, allocations: 499 kB / 0.7731 GB, free: 141.4 MB / 0.5606 GB Notification: Performance of sort global known variables: time 7e-08/0.8512, allocations: 0 / 0.7731 GB, free: 141.4 MB / 0.5606 GB Notification: Performance of remove unused functions: time 0.001238/0.8524, allocations: 475.5 kB / 0.7736 GB, free: 141 MB / 0.5606 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 8 (volume.medium.p,volume.medium.Xi[1],volume.medium.Xi[2],volume.medium.Xi[3],volume.medium.Xi[4],volume.medium.Xi[5],volume.medium.Xi[6],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 (78): * Single equations (assignments): 76 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * 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): 1 system {(1,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001469/0.8539, allocations: 0.665 MB / 0.7742 GB, free: 140.3 MB / 0.5606 GB Notification: Performance of simCode: created initialization part: time 0.002082/0.856, allocations: 1.423 MB / 0.7756 GB, free: 138.9 MB / 0.5606 GB Notification: Performance of simCode: created event and clocks part: time 5.751e-06/0.856, allocations: 7.234 kB / 0.7756 GB, free: 138.9 MB / 0.5606 GB Notification: Performance of simCode: created simulation system equations: time 0.001355/0.8573, allocations: 0.8389 MB / 0.7764 GB, free: 138.1 MB / 0.5606 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001784/0.8591, allocations: 454.7 kB / 0.7769 GB, free: 137.6 MB / 0.5606 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003884/0.863, allocations: 2.883 MB / 0.7797 GB, free: 134.7 MB / 0.5606 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004302/0.8634, allocations: 0.5781 MB / 0.7802 GB, free: 134.1 MB / 0.5606 GB Notification: Performance of simCode: alias equations: time 0.000896/0.8643, allocations: 422.3 kB / 0.7806 GB, free: 133.7 MB / 0.5606 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0003055/0.8646, allocations: 91.41 kB / 0.7807 GB, free: 133.6 MB / 0.5606 GB Notification: Performance of SimCode: time 7.91e-07/0.8646, allocations: 0 / 0.7807 GB, free: 133.6 MB / 0.5606 GB Notification: Performance of Templates: time 0.03636/0.901, allocations: 32.29 MB / 0.8123 GB, free: 101.7 MB / 0.5606 GB " [Timeout remaining time 659] make -j1 -f ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.makefile [Timeout 660] (rm -f ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe ; mkfifo ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe ; head -c 1048576 < ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe >> ../files/ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.sim & ./ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas -abortSlowSimulation -alarm=480 -s cvode -emit_protected -lv LOG_STATS > ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.pipe 2>&1) [Timeout 480] diffSimulationResults("ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/ModelicaTest/Media/TestsWithFluid/MediaTestModels/IdealGases/SimpleNaturalGas/SimpleNaturalGas.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.1.0_ModelicaTest.Media.TestsWithFluid.MediaTestModels.IdealGases.SimpleNaturalGas.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: 7.536873035001918]