Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.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 0.001915/0.001915, allocations: 81.5 kB / 19.44 MB, free: 344 kB / 13.93 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 0.002004/0.002004, allocations: 173.2 kB / 22.76 MB, free: 1.664 MB / 18.57 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 1.557/1.557, allocations: 177.1 MB / 203.1 MB, free: 5.629 MB / 186.7 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/package.mo): time 3.356/3.356, allocations: 429.5 MB / 0.6729 GB, free: 4.004 MB / 0.6355 GB " [Timeout remaining time 176] Using package Buildings with version 14.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings master/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(Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|tOn.y|k.y|ratioLT.y|timConDel.T|timConDel.L",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay") translateModel(Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|tOn.y|k.y|ratioLT.y|timConDel.T|timConDel.L",fileNamePrefix="Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 2.014e-06/2.014e-06, allocations: 0 / 0.8775 GB, free: 6.625 MB / 0.8386 GB Notification: Performance of FrontEnd - Absyn->SCode: time 3.256e-05/3.458e-05, allocations: 4.984 kB / 0.8775 GB, free: 6.621 MB / 0.8386 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay): time 0.003201/0.003235, allocations: 1.362 MB / 0.8788 GB, free: 5.289 MB / 0.8386 GB Notification: Performance of NFInst.instExpressions: time 0.002549/0.005785, allocations: 1.523 MB / 0.8803 GB, free: 3.754 MB / 0.8386 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001596/0.005944, allocations: 4 kB / 0.8803 GB, free: 3.75 MB / 0.8386 GB Notification: Performance of NFTyping.typeComponents: time 0.0001905/0.006135, allocations: 38.88 kB / 0.8803 GB, free: 3.715 MB / 0.8386 GB Notification: Performance of NFTyping.typeBindings: time 0.0001378/0.006273, allocations: 47.53 kB / 0.8804 GB, free: 3.668 MB / 0.8386 GB Notification: Performance of NFTyping.typeClassSections: time 0.0008351/0.007108, allocations: 339.1 kB / 0.8807 GB, free: 3.336 MB / 0.8386 GB Notification: Performance of NFFlatten.flatten: time 0.0005639/0.007672, allocations: 480.1 kB / 0.8812 GB, free: 2.867 MB / 0.8386 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0002656/0.007937, allocations: 129.7 kB / 0.8813 GB, free: 2.734 MB / 0.8386 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003367/0.008274, allocations: 263.5 kB / 0.8815 GB, free: 2.477 MB / 0.8386 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002404/0.008514, allocations: 132.4 kB / 0.8817 GB, free: 2.348 MB / 0.8386 GB Notification: Performance of NFPackage.collectConstants: time 9.034e-05/0.008605, allocations: 52 kB / 0.8817 GB, free: 2.297 MB / 0.8386 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0001385/0.008743, allocations: 77.09 kB / 0.8818 GB, free: 2.223 MB / 0.8386 GB Notification: Performance of NFScalarize.scalarize: time 8.847e-05/0.008832, allocations: 71.75 kB / 0.8818 GB, free: 2.152 MB / 0.8386 GB Notification: Performance of NFVerifyModel.verify: time 0.0001777/0.009009, allocations: 139.6 kB / 0.882 GB, free: 2.016 MB / 0.8386 GB Notification: Performance of NFConvertDAE.convert: time 0.0007842/0.009793, allocations: 0.628 MB / 0.8826 GB, free: 1.387 MB / 0.8386 GB Notification: Performance of FrontEnd - DAE generated: time 3.206e-06/0.009797, allocations: 0 / 0.8826 GB, free: 1.387 MB / 0.8386 GB Notification: Performance of FrontEnd: time 1.032e-06/0.009798, allocations: 0 / 0.8826 GB, free: 1.387 MB / 0.8386 GB Notification: Performance of Transformations before backend: time 7.103e-06/0.009805, allocations: 5.031 kB / 0.8826 GB, free: 1.383 MB / 0.8386 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 68 * Number of variables: 68 Notification: Performance of Generate backend data structure: time 0.001123/0.01093, allocations: 0.7067 MB / 0.8833 GB, free: 0.625 MB / 0.8386 GB Notification: Performance of prepare preOptimizeDAE: time 4.004e-05/0.01097, allocations: 12.03 kB / 0.8833 GB, free: 0.6133 MB / 0.8386 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0002276/0.01119, allocations: 64.73 kB / 0.8834 GB, free: 0.5508 MB / 0.8386 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004501/0.01165, allocations: 267 kB / 0.8836 GB, free: 268 kB / 0.8386 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.763e-05/0.01168, allocations: 21.03 kB / 0.8836 GB, free: 244 kB / 0.8386 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.29e-05/0.01175, allocations: 36.38 kB / 0.8837 GB, free: 208 kB / 0.8386 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0004465/0.01219, allocations: 235.7 kB / 0.8839 GB, free: 15.97 MB / 0.8542 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.315e-05/0.01221, allocations: 192 / 0.8839 GB, free: 15.97 MB / 0.8542 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.905e-05/0.01223, allocations: 12.38 kB / 0.8839 GB, free: 15.96 MB / 0.8542 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.206e-06/0.01224, allocations: 5.594 kB / 0.8839 GB, free: 15.95 MB / 0.8542 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003452/0.01259, allocations: 174.4 kB / 0.8841 GB, free: 15.79 MB / 0.8542 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001753/0.01434, allocations: 0.8727 MB / 0.8849 GB, free: 14.88 MB / 0.8542 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004835/0.01482, allocations: 192 kB / 0.8851 GB, free: 14.68 MB / 0.8542 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.000152/0.01498, allocations: 80.61 kB / 0.8852 GB, free: 14.59 MB / 0.8542 GB Notification: Performance of preOpt evalFunc (simulation): time 2.545e-05/0.015, allocations: 4 kB / 0.8852 GB, free: 14.59 MB / 0.8542 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0002693/0.01527, allocations: 149.6 kB / 0.8853 GB, free: 14.43 MB / 0.8542 GB Notification: Performance of pre-optimization done (n=23): time 1.463e-06/0.01527, allocations: 0 / 0.8853 GB, free: 14.43 MB / 0.8542 GB Notification: Performance of matching and sorting (n=23): time 0.0005762/0.01585, allocations: 276.1 kB / 0.8856 GB, free: 14.16 MB / 0.8542 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.237e-05/0.0159, allocations: 55.41 kB / 0.8857 GB, free: 14.09 MB / 0.8542 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003445/0.01625, allocations: 317.9 kB / 0.886 GB, free: 13.77 MB / 0.8542 GB Notification: Performance of collectPreVariables (initialization): time 4.906e-05/0.01629, allocations: 33.7 kB / 0.886 GB, free: 13.73 MB / 0.8542 GB Notification: Performance of collectInitialEqns (initialization): time 0.0002153/0.01651, allocations: 243.2 kB / 0.8862 GB, free: 13.48 MB / 0.8542 GB Notification: Performance of collectInitialBindings (initialization): time 7.603e-05/0.01659, allocations: 71.44 kB / 0.8863 GB, free: 13.41 MB / 0.8542 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001767/0.01676, allocations: 95.33 kB / 0.8864 GB, free: 13.31 MB / 0.8542 GB Notification: Performance of setup shared object (initialization): time 0.0002923/0.01706, allocations: 0.5157 MB / 0.8869 GB, free: 12.78 MB / 0.8542 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0003352/0.01739, allocations: 199.3 kB / 0.8871 GB, free: 12.57 MB / 0.8542 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003879/0.01778, allocations: 270.3 kB / 0.8873 GB, free: 12.27 MB / 0.8542 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004547/0.01823, allocations: 304.5 kB / 0.8876 GB, free: 11.94 MB / 0.8542 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 8.536e-06/0.01824, allocations: 4.531 kB / 0.8876 GB, free: 11.94 MB / 0.8542 GB Notification: Performance of matching and sorting (n=35) (initialization): time 0.0008928/0.01913, allocations: 0.525 MB / 0.8881 GB, free: 11.38 MB / 0.8542 GB Notification: Performance of prepare postOptimizeDAE: time 7.279e-05/0.01921, allocations: 71.39 kB / 0.8882 GB, free: 11.3 MB / 0.8542 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.031e-06/0.01921, allocations: 160 / 0.8882 GB, free: 11.3 MB / 0.8542 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.706e-05/0.01923, allocations: 8 kB / 0.8882 GB, free: 11.29 MB / 0.8542 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001581/0.01939, allocations: 31.92 kB / 0.8882 GB, free: 11.26 MB / 0.8542 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.776e-06/0.0194, allocations: 7.984 kB / 0.8883 GB, free: 11.25 MB / 0.8542 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000337/0.01973, allocations: 67.73 kB / 0.8883 GB, free: 11.19 MB / 0.8542 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 4.934e-05/0.01978, allocations: 19.98 kB / 0.8883 GB, free: 11.17 MB / 0.8542 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * Number of states: 0 () * Number of discrete variables: 13 ($whenCondition3,$whenCondition4,$whenCondition1,$whenCondition2,ratioLT.booPul.y,$PRE.ratioLT.booPul.y,tOn.booPul.y,$PRE.tOn.booPul.y,timConDel.edg.u,$PRE.timConDel.edg.u,timConDel.gre1.greHys.y,$PRE.timConDel.gre1.greHys.y,timConDel.triFai) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (31): * Single equations (assignments): 29 * Array equations: 0 * Algorithm blocks: 2 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.0002033/0.01999, allocations: 200.5 kB / 0.8885 GB, free: 10.96 MB / 0.8542 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.102e-05/0.02004, allocations: 35.86 kB / 0.8886 GB, free: 10.93 MB / 0.8542 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0004354/0.02047, allocations: 215.7 kB / 0.8888 GB, free: 10.71 MB / 0.8542 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.016e-06/0.02048, allocations: 0 / 0.8888 GB, free: 10.71 MB / 0.8542 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.627e-06/0.02048, allocations: 0 / 0.8888 GB, free: 10.71 MB / 0.8542 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.893e-06/0.02049, allocations: 4 kB / 0.8888 GB, free: 10.71 MB / 0.8542 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.000914/0.0214, allocations: 0.6428 MB / 0.8894 GB, free: 10.01 MB / 0.8542 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.825e-06/0.0214, allocations: 0 / 0.8894 GB, free: 10.01 MB / 0.8542 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001135/0.02152, allocations: 31.92 kB / 0.8894 GB, free: 9.98 MB / 0.8542 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.32e-06/0.02152, allocations: 4 kB / 0.8894 GB, free: 9.977 MB / 0.8542 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.43e-05/0.02154, allocations: 4.094 kB / 0.8894 GB, free: 9.973 MB / 0.8542 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.119e-06/0.02154, allocations: 4 kB / 0.8894 GB, free: 9.969 MB / 0.8542 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.363e-06/0.02154, allocations: 0 / 0.8894 GB, free: 9.969 MB / 0.8542 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0004919/0.02204, allocations: 396.4 kB / 0.8898 GB, free: 9.551 MB / 0.8542 GB Notification: Performance of postOpt removeConstants (simulation): time 3.954e-05/0.02207, allocations: 23.84 kB / 0.8898 GB, free: 9.527 MB / 0.8542 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.575e-05/0.02211, allocations: 8 kB / 0.8899 GB, free: 9.52 MB / 0.8542 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001327/0.02224, allocations: 11.94 kB / 0.8899 GB, free: 9.508 MB / 0.8542 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 7.902e-05/0.02232, allocations: 31.83 kB / 0.8899 GB, free: 9.477 MB / 0.8542 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 2.019e-05/0.02234, allocations: 11.98 kB / 0.8899 GB, free: 9.465 MB / 0.8542 GB Notification: Performance of sorting global known variables: time 0.0002073/0.02255, allocations: 208.6 kB / 0.8901 GB, free: 9.262 MB / 0.8542 GB Notification: Performance of sort global known variables: time 1.01e-07/0.02255, allocations: 4 kB / 0.8901 GB, free: 9.258 MB / 0.8542 GB Notification: Performance of remove unused functions: time 0.000361/0.02291, allocations: 79.78 kB / 0.8902 GB, free: 9.18 MB / 0.8542 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 0 () * Number of discrete variables: 9 ($whenCondition3,$whenCondition4,$whenCondition1,$whenCondition2,timConDel.triFai,timConDel.gre1.greHys.y,timConDel.edg.u,tOn.booPul.y,ratioLT.booPul.y) * Number of discrete states: 2 (timConDel.gre1.greHys.y,timConDel.edg.u) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (23): * Single equations (assignments): 21 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of Backend phase and start with SimCode phase: time 0.0002071/0.02312, allocations: 115.2 kB / 0.8903 GB, free: 9.055 MB / 0.8542 GB Notification: Performance of simCode: created initialization part: time 0.0007333/0.02385, allocations: 478.4 kB / 0.8908 GB, free: 8.547 MB / 0.8542 GB Notification: Performance of simCode: created event and clocks part: time 2.094e-06/0.02385, allocations: 4 kB / 0.8908 GB, free: 8.543 MB / 0.8542 GB Notification: Performance of simCode: created simulation system equations: time 0.0001766/0.02403, allocations: 100 kB / 0.8909 GB, free: 8.441 MB / 0.8542 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004929/0.02452, allocations: 59.95 kB / 0.8909 GB, free: 8.383 MB / 0.8542 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.001166/0.02569, allocations: 499.8 kB / 0.8914 GB, free: 7.855 MB / 0.8542 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000172/0.02586, allocations: 151.5 kB / 0.8915 GB, free: 7.688 MB / 0.8542 GB Notification: Performance of simCode: alias equations: time 9.387e-05/0.02595, allocations: 26.3 kB / 0.8916 GB, free: 7.664 MB / 0.8542 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 6.762e-05/0.02602, allocations: 28.48 kB / 0.8916 GB, free: 7.637 MB / 0.8542 GB Notification: Performance of SimCode: time 5.41e-07/0.02602, allocations: 0 / 0.8916 GB, free: 7.637 MB / 0.8542 GB Notification: Performance of Templates: time 0.009557/0.03558, allocations: 4.057 MB / 0.8955 GB, free: 3.715 MB / 0.8542 GB " [Timeout remaining time 300] make -j1 -f Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.makefile [Timeout 300] (rm -f Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.pipe ; mkfifo Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.pipe ; head -c 1048576 < Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.pipe >> ../files/Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.sim & ./Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay -abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.pipe 2>&1) [Timeout 240] diffSimulationResults("Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Controls_OBC_Utilities_PIDWithAutotuning_SystemIdentification_FirstOrderTimeDelay_BaseClasses_Validation_TimeConstantDelay.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Controls.OBC.Utilities.PIDWithAutotuning.SystemIdentification.FirstOrderTimeDelay.BaseClasses.Validation.TimeConstantDelay.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 8.654038956970908]