Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.001682/0.001682, allocations: 113.1 kB / 21.85 MB, free: 80 kB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.002143/0.002143, allocations: 220.3 kB / 25.14 MB, free: 3.582 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 1.467/1.467, allocations: 230.2 MB / 258.5 MB, free: 8.281 MB / 206.1 MB " [Timeout remaining time 178] Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Running command: translateModel(Modelica.Fluid.Examples.TraceSubstances.RoomCO2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.T|volume.medium.Xi.1.|volume.medium.p",fileNamePrefix="Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2") translateModel(Modelica.Fluid.Examples.TraceSubstances.RoomCO2,tolerance=1e-06,outputFormat="mat",numberOfIntervals=5002,variableFilter="time|volume.medium.T|volume.medium.Xi.1.|volume.medium.p",fileNamePrefix="Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.002538/0.002538, allocations: 63.89 kB / 379.1 MB, free: 2.902 MB / 302.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3012/0.3037, allocations: 53.37 MB / 432.5 MB, free: 7.094 MB / 334.1 MB Notification: Performance of NFInst.instantiate(Modelica.Fluid.Examples.TraceSubstances.RoomCO2): time 0.5787/0.8824, allocations: 207.7 MB / 0.6252 GB, free: 0.8242 MB / 462.1 MB Notification: Performance of NFInst.instExpressions: time 0.01437/0.8968, allocations: 10.43 MB / 0.6354 GB, free: 11.34 MB / 478.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001098/0.8979, allocations: 31.75 kB / 0.6354 GB, free: 11.31 MB / 478.1 MB Notification: Performance of NFTyping.typeComponents: time 0.001405/0.8993, allocations: 482.5 kB / 0.6359 GB, free: 10.88 MB / 478.1 MB Notification: Performance of NFTyping.typeBindings: time 0.009465/0.9088, allocations: 3.295 MB / 0.6391 GB, free: 7.98 MB / 478.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.007665/0.9164, allocations: 2.758 MB / 0.6418 GB, free: 5.484 MB / 478.1 MB Notification: Performance of NFFlatten.flatten: time 0.00436/0.9208, allocations: 2.72 MB / 0.6445 GB, free: 2.867 MB / 478.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.001309/0.9221, allocations: 0.6578 MB / 0.6451 GB, free: 2.207 MB / 478.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.007475/0.9296, allocations: 2.905 MB / 0.6479 GB, free: 15.46 MB / 494.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.002652/0.9322, allocations: 1.153 MB / 0.6491 GB, free: 14.3 MB / 494.1 MB Notification: Performance of NFPackage.collectConstants: time 0.0003398/0.9326, allocations: 120 kB / 0.6492 GB, free: 14.18 MB / 494.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.01147/0.944, allocations: 5.237 MB / 0.6543 GB, free: 8.938 MB / 494.1 MB Notification: Performance of NFScalarize.scalarize: time 0.001096/0.9451, allocations: 0.5455 MB / 0.6548 GB, free: 8.391 MB / 494.1 MB Notification: Performance of NFVerifyModel.verify: time 0.001137/0.9463, allocations: 0.6419 MB / 0.6555 GB, free: 7.746 MB / 494.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01186/0.9581, allocations: 4.464 MB / 0.6598 GB, free: 3.27 MB / 494.1 MB Notification: Performance of FrontEnd - DAE generated: time 4.618e-06/0.9581, allocations: 0 / 0.6598 GB, free: 3.27 MB / 494.1 MB Notification: Performance of FrontEnd: time 1.422e-06/0.9581, allocations: 0 / 0.6598 GB, free: 3.27 MB / 494.1 MB Notification: Performance of Transformations before backend: time 2.693e-05/0.9582, allocations: 4 kB / 0.6598 GB, free: 3.266 MB / 494.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 228 * Number of variables: 228 Notification: Performance of Generate backend data structure: time 0.005502/0.9637, allocations: 2.046 MB / 0.6618 GB, free: 1.168 MB / 494.1 MB Notification: Performance of prepare preOptimizeDAE: time 4.302e-05/0.9637, allocations: 8.031 kB / 0.6618 GB, free: 1.16 MB / 494.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0005205/0.9642, allocations: 135.3 kB / 0.662 GB, free: 1.027 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001434/0.9657, allocations: 0.6551 MB / 0.6626 GB, free: 348 kB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001479/0.9658, allocations: 133.4 kB / 0.6627 GB, free: 204 kB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001657/0.966, allocations: 84 kB / 0.6628 GB, free: 120 kB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002507/0.9685, allocations: 1.451 MB / 0.6642 GB, free: 14.6 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.083e-05/0.9685, allocations: 11.92 kB / 0.6642 GB, free: 14.59 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001215/0.9686, allocations: 39.98 kB / 0.6643 GB, free: 14.55 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001009/0.9687, allocations: 69.97 kB / 0.6643 GB, free: 14.48 MB / 0.4981 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.00258/0.9713, allocations: 1.468 MB / 0.6658 GB, free: 13.01 MB / 0.4981 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 0.01001/0.9813, allocations: 6.116 MB / 0.6717 GB, free: 6.508 MB / 0.4981 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002072/0.9834, allocations: 0.9407 MB / 0.6727 GB, free: 5.559 MB / 0.4981 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0008661/0.9843, allocations: 0.5003 MB / 0.6731 GB, free: 5.059 MB / 0.4981 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0007625/0.985, allocations: 244.7 kB / 0.6734 GB, free: 4.82 MB / 0.4981 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.691e-05/0.9851, allocations: 43.56 kB / 0.6734 GB, free: 4.766 MB / 0.4981 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0004839/0.9856, allocations: 103.2 kB / 0.6735 GB, free: 4.664 MB / 0.4981 GB Notification: Performance of pre-optimization done (n=84): time 3.076e-06/0.9856, allocations: 3.938 kB / 0.6735 GB, free: 4.66 MB / 0.4981 GB Notification: Performance of matching and sorting (n=96): time 0.01781/1.003, allocations: 4.72 MB / 0.6781 GB, free: 15.9 MB / 0.5137 GB Notification: Performance of inlineWhenForInitialization (initialization): time 8.5e-05/1.003, allocations: 115.8 kB / 0.6782 GB, free: 15.77 MB / 0.5137 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001155/1.005, allocations: 0.7777 MB / 0.679 GB, free: 14.98 MB / 0.5137 GB Notification: Performance of collectPreVariables (initialization): time 0.0001603/1.005, allocations: 49.7 kB / 0.6791 GB, free: 14.93 MB / 0.5137 GB Notification: Performance of collectInitialEqns (initialization): time 0.000406/1.005, allocations: 460.3 kB / 0.6795 GB, free: 14.47 MB / 0.5137 GB Notification: Performance of collectInitialBindings (initialization): time 0.000348/1.006, allocations: 360.9 kB / 0.6798 GB, free: 14.12 MB / 0.5137 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004551/1.006, allocations: 254.8 kB / 0.6801 GB, free: 13.86 MB / 0.5137 GB Notification: Performance of setup shared object (initialization): time 0.0002288/1.006, allocations: 402.7 kB / 0.6805 GB, free: 13.46 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.001374/1.008, allocations: 0.615 MB / 0.6811 GB, free: 12.84 MB / 0.5137 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001699/1.009, allocations: 0.9576 MB / 0.682 GB, free: 11.73 MB / 0.5137 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.003096/1.012, allocations: 1.655 MB / 0.6836 GB, free: 9.93 MB / 0.5137 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.995e-06/1.012, allocations: 7.938 kB / 0.6836 GB, free: 9.922 MB / 0.5137 GB Notification: Performance of matching and sorting (n=155) (initialization): time 0.004416/1.017, allocations: 1.926 MB / 0.6855 GB, free: 7.969 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 6.956e-05/1.017, allocations: 71.33 kB / 0.6856 GB, free: 7.887 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.803e-05/1.017, allocations: 12 kB / 0.6856 GB, free: 7.875 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001597/1.018, allocations: 313.1 kB / 0.6859 GB, free: 7.566 MB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00121/1.02, allocations: 271.6 kB / 0.6861 GB, free: 7.301 MB / 0.5137 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001784/1.021, allocations: 0.9036 MB / 0.687 GB, free: 6.371 MB / 0.5137 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001281/1.023, allocations: 67.92 kB / 0.6871 GB, free: 6.305 MB / 0.5137 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001753/1.023, allocations: 71.97 kB / 0.6872 GB, free: 6.234 MB / 0.5137 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.001874/1.025, allocations: 0.8499 MB / 0.688 GB, free: 5.379 MB / 0.5137 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.001705/1.027, allocations: 0.9459 MB / 0.6889 GB, free: 4.293 MB / 0.5137 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.002955/1.029, allocations: 1.627 MB / 0.6905 GB, free: 2.516 MB / 0.5137 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.359e-05/1.029, allocations: 11.94 kB / 0.6905 GB, free: 2.504 MB / 0.5137 GB Notification: Performance of matching and sorting (n=155) (initialization_lambda0): time 0.004135/1.034, allocations: 1.903 MB / 0.6924 GB, free: 0.5781 MB / 0.5137 GB Notification: Performance of prepare postOptimizeDAE: time 6.376e-05/1.034, allocations: 63.41 kB / 0.6924 GB, free: 0.5039 MB / 0.5137 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.501e-05/1.034, allocations: 8.562 kB / 0.6924 GB, free: 0.4961 MB / 0.5137 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001506/1.035, allocations: 312.5 kB / 0.6927 GB, free: 192 kB / 0.5137 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001112/1.036, allocations: 267.6 kB / 0.693 GB, free: 15.93 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.001726/1.038, allocations: 0.9114 MB / 0.6939 GB, free: 14.99 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001024/1.039, allocations: 63.95 kB / 0.6939 GB, free: 14.93 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001414/1.039, allocations: 68.05 kB / 0.694 GB, free: 14.86 MB / 0.5294 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 46 * Number of states: 0 () * Number of discrete variables: 6 (traceVolume.ind,traceSource.ind,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 (148): * Single equations (assignments): 145 * Array equations: 0 * Algorithm blocks: 2 * 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 {(2,6)} Notification: Performance of prepare postOptimizeDAE: time 0.0004521/1.04, allocations: 271.2 kB / 0.6943 GB, free: 14.59 MB / 0.5294 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002574/1.04, allocations: 103.3 kB / 0.6944 GB, free: 14.49 MB / 0.5294 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.004273/1.044, allocations: 1.956 MB / 0.6963 GB, free: 12.5 MB / 0.5294 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.897e-05/1.044, allocations: 15.88 kB / 0.6963 GB, free: 12.49 MB / 0.5294 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.176e-06/1.044, allocations: 7.984 kB / 0.6963 GB, free: 12.48 MB / 0.5294 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.38e-05/1.044, allocations: 3.984 kB / 0.6963 GB, free: 12.48 MB / 0.5294 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.005852/1.05, allocations: 2.991 MB / 0.6992 GB, free: 9.406 MB / 0.5294 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 6.432e-06/1.05, allocations: 4.031 kB / 0.6992 GB, free: 9.402 MB / 0.5294 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008976/1.051, allocations: 183.7 kB / 0.6994 GB, free: 9.223 MB / 0.5294 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001862/1.053, allocations: 376.4 kB / 0.6998 GB, free: 8.852 MB / 0.5294 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.589e-05/1.053, allocations: 35.97 kB / 0.6998 GB, free: 8.816 MB / 0.5294 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001552/1.054, allocations: 0.8842 MB / 0.7007 GB, free: 7.906 MB / 0.5294 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.398e-06/1.055, allocations: 4.031 kB / 0.7007 GB, free: 7.902 MB / 0.5294 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.00472/1.059, allocations: 2.391 MB / 0.703 GB, free: 5.469 MB / 0.5294 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007256/1.06, allocations: 259.2 kB / 0.7032 GB, free: 5.215 MB / 0.5294 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001982/1.06, allocations: 31.98 kB / 0.7033 GB, free: 5.184 MB / 0.5294 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0008839/1.061, allocations: 51.95 kB / 0.7033 GB, free: 5.133 MB / 0.5294 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001676/1.061, allocations: 72.86 kB / 0.7034 GB, free: 5.062 MB / 0.5294 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001302/1.061, allocations: 51.97 kB / 0.7034 GB, free: 5.012 MB / 0.5294 GB Notification: Performance of sorting global known variables: time 0.0007963/1.062, allocations: 0.577 MB / 0.704 GB, free: 4.441 MB / 0.5294 GB Notification: Performance of sort global known variables: time 9e-08/1.062, allocations: 0 / 0.704 GB, free: 4.441 MB / 0.5294 GB Notification: Performance of remove unused functions: time 0.003639/1.066, allocations: 1.161 MB / 0.7051 GB, free: 3.277 MB / 0.5294 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 4 (volume.medium.p,volume.medium.Xi[1],volume.medium.T,volume.mC_scaled[1]) * 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 (99): * Single equations (assignments): 96 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 2 * 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 {(2,6)} Notification: Performance of Backend phase and start with SimCode phase: time 0.004347/1.07, allocations: 1.073 MB / 0.7062 GB, free: 2.199 MB / 0.5294 GB Notification: Performance of simCode: created initialization part: time 0.005857/1.076, allocations: 2.484 MB / 0.7086 GB, free: 15.66 MB / 0.545 GB Notification: Performance of simCode: created event and clocks part: time 1.038e-05/1.076, allocations: 0 / 0.7086 GB, free: 15.66 MB / 0.545 GB Notification: Performance of simCode: created simulation system equations: time 0.001624/1.078, allocations: 0.7013 MB / 0.7093 GB, free: 14.97 MB / 0.545 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.002841/1.08, allocations: 0.5575 MB / 0.7098 GB, free: 14.42 MB / 0.545 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.005814/1.086, allocations: 2.626 MB / 0.7124 GB, free: 11.74 MB / 0.545 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008293/1.087, allocations: 1.138 MB / 0.7135 GB, free: 10.58 MB / 0.545 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005505/1.088, allocations: 127.3 kB / 0.7136 GB, free: 10.46 MB / 0.545 GB Notification: Performance of SimCode: time 1.372e-06/1.088, allocations: 0 / 0.7136 GB, free: 10.46 MB / 0.545 GB Notification: Performance of Templates: time 0.04993/1.138, allocations: 32.83 MB / 0.7457 GB, free: 9.68 MB / 0.5762 GB " [Timeout remaining time 659] make -j1 -f Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.makefile [Timeout 660] (rm -f Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe ; mkfifo Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe ; head -c 1048576 < Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe >> ../files/Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.sim & ./Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2 -abortSlowSimulation -alarm=480 -emit_protected -lv LOG_STATS > Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.pipe 2>&1) [Timeout 480] diffSimulationResults("Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/Modelica/Fluid/Examples/TraceSubstances/RoomCO2/RoomCO2.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Modelica_trunk_Modelica.Fluid.Examples.TraceSubstances.RoomCO2.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: 13.483688725158572]