Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.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 0.0008826/0.0008826, allocations: 76.55 kB / 19.93 MB, free: 4.633 MB / 18.57 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 0.00081/0.00081, allocations: 181.9 kB / 23.22 MB, free: 1.348 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 0.9626/0.9626, allocations: 177.1 MB / 203.5 MB, free: 5.734 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/package.mo): time 1.8/1.8, allocations: 377.9 MB / 0.6228 GB, free: 8.66 MB / 0.5886 GB " [Timeout remaining time 178] Using package Buildings with version 12.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/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.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|actAirSet.uOpeMod|actAirSet.VCooMax_flow|actAirSet.VOccMin_flow|actAirSet.VActCooMax_flow|actAirSet.VActMin_flow|actAirSet.VActHeaMax_flow",fileNamePrefix="Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow") translateModel(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|actAirSet.uOpeMod|actAirSet.VCooMax_flow|actAirSet.VOccMin_flow|actAirSet.VActCooMax_flow|actAirSet.VActMin_flow|actAirSet.VActHeaMax_flow",fileNamePrefix="Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.793e-06/1.793e-06, allocations: 0 / 0.9822 GB, free: 2.043 MB / 0.9323 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.384e-05/2.563e-05, allocations: 2.281 kB / 0.9822 GB, free: 2.039 MB / 0.9323 GB Notification: Performance of NFInst.instantiate(Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow): time 0.001734/0.00176, allocations: 1.211 MB / 0.9834 GB, free: 0.8281 MB / 0.9323 GB Notification: Performance of NFInst.instExpressions: time 0.001072/0.002831, allocations: 1.116 MB / 0.9845 GB, free: 15.7 MB / 0.948 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0001109/0.002942, allocations: 4 kB / 0.9845 GB, free: 15.7 MB / 0.948 GB Notification: Performance of NFTyping.typeComponents: time 0.0001197/0.003062, allocations: 35.55 kB / 0.9845 GB, free: 15.66 MB / 0.948 GB Notification: Performance of NFTyping.typeBindings: time 6.254e-05/0.003125, allocations: 43.55 kB / 0.9846 GB, free: 15.62 MB / 0.948 GB Notification: Performance of NFTyping.typeClassSections: time 0.000226/0.00335, allocations: 119.8 kB / 0.9847 GB, free: 15.5 MB / 0.948 GB Notification: Performance of NFFlatten.flatten: time 0.0001949/0.003545, allocations: 300.3 kB / 0.985 GB, free: 15.21 MB / 0.948 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001876/0.003733, allocations: 121.4 kB / 0.9851 GB, free: 15.09 MB / 0.948 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0002043/0.003937, allocations: 191.5 kB / 0.9853 GB, free: 14.9 MB / 0.948 GB Notification: Performance of NFSimplifyModel.simplify: time 8.772e-05/0.004025, allocations: 83.7 kB / 0.9854 GB, free: 14.82 MB / 0.948 GB Notification: Performance of NFPackage.collectConstants: time 3.199e-05/0.004057, allocations: 32 kB / 0.9854 GB, free: 14.79 MB / 0.948 GB Notification: Performance of NFFlatten.collectFunctions: time 4.625e-05/0.004103, allocations: 32 kB / 0.9854 GB, free: 14.75 MB / 0.948 GB Notification: Performance of NFScalarize.scalarize: time 3.864e-05/0.004142, allocations: 75.73 kB / 0.9855 GB, free: 14.68 MB / 0.948 GB Notification: Performance of NFVerifyModel.verify: time 5.593e-05/0.004198, allocations: 87.7 kB / 0.9856 GB, free: 14.59 MB / 0.948 GB Notification: Performance of NFConvertDAE.convert: time 0.0003049/0.004503, allocations: 418.6 kB / 0.986 GB, free: 14.18 MB / 0.948 GB Notification: Performance of FrontEnd - DAE generated: time 1.482e-06/0.004504, allocations: 0 / 0.986 GB, free: 14.18 MB / 0.948 GB Notification: Performance of FrontEnd: time 7.92e-07/0.004505, allocations: 0 / 0.986 GB, free: 14.18 MB / 0.948 GB Notification: Performance of Transformations before backend: time 4.117e-06/0.004509, allocations: 0 / 0.986 GB, free: 14.18 MB / 0.948 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 64 * Number of variables: 64 Notification: Performance of Generate backend data structure: time 0.0005068/0.005016, allocations: 0.4936 MB / 0.9865 GB, free: 13.66 MB / 0.948 GB Notification: Performance of prepare preOptimizeDAE: time 2.986e-05/0.005046, allocations: 12.03 kB / 0.9865 GB, free: 13.64 MB / 0.948 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001091/0.005155, allocations: 40.73 kB / 0.9865 GB, free: 13.61 MB / 0.948 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0003973/0.005552, allocations: 251.2 kB / 0.9868 GB, free: 13.33 MB / 0.948 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.445e-05/0.005577, allocations: 21.03 kB / 0.9868 GB, free: 13.31 MB / 0.948 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.879e-05/0.005605, allocations: 28.38 kB / 0.9868 GB, free: 13.29 MB / 0.948 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003944/0.006, allocations: 264.3 kB / 0.9871 GB, free: 13.01 MB / 0.948 GB Notification: Performance of preOpt findStateOrder (simulation): time 7.825e-06/0.006008, allocations: 192 / 0.9871 GB, free: 13.01 MB / 0.948 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.083e-05/0.006029, allocations: 12.38 kB / 0.9871 GB, free: 13 MB / 0.948 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.333e-06/0.006036, allocations: 4.375 kB / 0.9871 GB, free: 13 MB / 0.948 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002764/0.006312, allocations: 194.4 kB / 0.9873 GB, free: 12.81 MB / 0.948 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0005448/0.006857, allocations: 0.5513 MB / 0.9878 GB, free: 12.22 MB / 0.948 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002842/0.007141, allocations: 166.7 kB / 0.988 GB, free: 12.05 MB / 0.948 GB Notification: Performance of preOpt resolveLoops (simulation): time 9.781e-05/0.007239, allocations: 64.83 kB / 0.988 GB, free: 11.98 MB / 0.948 GB Notification: Performance of preOpt evalFunc (simulation): time 1.797e-05/0.007257, allocations: 4 kB / 0.988 GB, free: 11.98 MB / 0.948 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.301e-05/0.00728, allocations: 46.48 kB / 0.9881 GB, free: 11.93 MB / 0.948 GB Notification: Performance of pre-optimization done (n=19): time 1.183e-06/0.007281, allocations: 0 / 0.9881 GB, free: 11.93 MB / 0.948 GB Notification: Performance of matching and sorting (n=19): time 0.0003981/0.00768, allocations: 239.4 kB / 0.9883 GB, free: 11.69 MB / 0.948 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.024e-05/0.00771, allocations: 51.41 kB / 0.9883 GB, free: 11.62 MB / 0.948 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0001351/0.007845, allocations: 215.8 kB / 0.9885 GB, free: 11.4 MB / 0.948 GB Notification: Performance of collectPreVariables (initialization): time 1.714e-05/0.007862, allocations: 29.7 kB / 0.9886 GB, free: 11.37 MB / 0.948 GB Notification: Performance of collectInitialEqns (initialization): time 8.665e-05/0.007949, allocations: 168.7 kB / 0.9887 GB, free: 11.2 MB / 0.948 GB Notification: Performance of collectInitialBindings (initialization): time 2.773e-05/0.007976, allocations: 47.59 kB / 0.9888 GB, free: 11.15 MB / 0.948 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.069e-05/0.008037, allocations: 61.92 kB / 0.9888 GB, free: 11.08 MB / 0.948 GB Notification: Performance of setup shared object (initialization): time 0.0002365/0.008274, allocations: 334.8 kB / 0.9892 GB, free: 10.75 MB / 0.948 GB Notification: Performance of preBalanceInitialSystem (initialization): time 9.815e-05/0.008372, allocations: 72.42 kB / 0.9892 GB, free: 10.68 MB / 0.948 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001181/0.00849, allocations: 115.8 kB / 0.9893 GB, free: 10.54 MB / 0.948 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0002212/0.008711, allocations: 181 kB / 0.9895 GB, free: 10.34 MB / 0.948 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.575e-06/0.008714, allocations: 0 / 0.9895 GB, free: 10.34 MB / 0.948 GB Notification: Performance of matching and sorting (n=27) (initialization): time 0.0002657/0.008979, allocations: 225.3 kB / 0.9897 GB, free: 10.11 MB / 0.948 GB Notification: Performance of prepare postOptimizeDAE: time 1.48e-05/0.008994, allocations: 8.156 kB / 0.9897 GB, free: 10.11 MB / 0.948 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.012e-06/0.009, allocations: 8 kB / 0.9897 GB, free: 10.1 MB / 0.948 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.42e-05/0.009014, allocations: 7.984 kB / 0.9897 GB, free: 10.09 MB / 0.948 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 8.46e-05/0.009099, allocations: 31.92 kB / 0.9898 GB, free: 10.06 MB / 0.948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.223e-06/0.009106, allocations: 7.984 kB / 0.9898 GB, free: 10.05 MB / 0.948 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 6.753e-05/0.009174, allocations: 31.78 kB / 0.9898 GB, free: 10.02 MB / 0.948 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.322e-05/0.009187, allocations: 15.98 kB / 0.9898 GB, free: 10 MB / 0.948 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 8 * Number of states: 0 () * Number of discrete variables: 17 (reaToInt2.y,actAirSet.or4.y,actAirSet.or2.y,actAirSet.gre.greHys.y,$PRE.actAirSet.gre.greHys.y,actAirSet.or1.y,actAirSet.ifSetBac.y,actAirSet.ifWarUp.y,actAirSet.ifSetUp.y,actAirSet.ifCooDow.y,actAirSet.ifOcc.y,actAirSet.or3.y,actAirSet.warUpMod.y,actAirSet.setBacMod.y,actAirSet.setUpMod.y,actAirSet.cooDowMod.y,actAirSet.occMod.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (27): * Single equations (assignments): 27 * Array equations: 0 * Algorithm blocks: 0 * 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 9.947e-05/0.009286, allocations: 149.6 kB / 0.99 GB, free: 9.848 MB / 0.948 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 2.206e-05/0.009308, allocations: 19.84 kB / 0.99 GB, free: 9.828 MB / 0.948 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 3.179e-05/0.00934, allocations: 25.81 kB / 0.99 GB, free: 9.801 MB / 0.948 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.629e-06/0.009345, allocations: 7.984 kB / 0.99 GB, free: 9.793 MB / 0.948 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.867e-06/0.009349, allocations: 0 / 0.99 GB, free: 9.793 MB / 0.948 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.276e-06/0.009352, allocations: 0 / 0.99 GB, free: 9.793 MB / 0.948 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001653/0.009517, allocations: 213.1 kB / 0.9902 GB, free: 9.555 MB / 0.948 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.82e-07/0.009518, allocations: 0 / 0.9902 GB, free: 9.555 MB / 0.948 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 5.722e-05/0.009575, allocations: 23.97 kB / 0.9903 GB, free: 9.531 MB / 0.948 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.382e-06/0.009577, allocations: 0 / 0.9903 GB, free: 9.531 MB / 0.948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.182e-05/0.009589, allocations: 15.94 kB / 0.9903 GB, free: 9.516 MB / 0.948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.034e-06/0.009591, allocations: 3.938 kB / 0.9903 GB, free: 9.512 MB / 0.948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 7.92e-07/0.009591, allocations: 0 / 0.9903 GB, free: 9.512 MB / 0.948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0002373/0.009829, allocations: 273.6 kB / 0.9905 GB, free: 9.23 MB / 0.948 GB Notification: Performance of postOpt removeConstants (simulation): time 1.591e-05/0.009845, allocations: 19.86 kB / 0.9905 GB, free: 9.211 MB / 0.948 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 1.972e-05/0.009864, allocations: 7.938 kB / 0.9906 GB, free: 9.203 MB / 0.948 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 6.156e-05/0.009926, allocations: 11.98 kB / 0.9906 GB, free: 9.191 MB / 0.948 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.341e-05/0.009989, allocations: 27.95 kB / 0.9906 GB, free: 9.164 MB / 0.948 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.353e-06/0.009997, allocations: 8 kB / 0.9906 GB, free: 9.156 MB / 0.948 GB Notification: Performance of sorting global known variables: time 7.019e-05/0.01007, allocations: 141.5 kB / 0.9907 GB, free: 9.02 MB / 0.948 GB Notification: Performance of sort global known variables: time 5e-08/0.01007, allocations: 0 / 0.9907 GB, free: 9.02 MB / 0.948 GB Notification: Performance of remove unused functions: time 0.0002008/0.01027, allocations: 51.78 kB / 0.9908 GB, free: 8.969 MB / 0.948 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 11 (actAirSet.or3.y,actAirSet.ifOcc.y,actAirSet.ifCooDow.y,actAirSet.ifSetUp.y,actAirSet.ifWarUp.y,actAirSet.ifSetBac.y,actAirSet.or1.y,actAirSet.gre.greHys.y,actAirSet.or2.y,actAirSet.or4.y,reaToInt2.y) * Number of discrete states: 1 (actAirSet.gre.greHys.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (19): * Single equations (assignments): 19 * Array equations: 0 * Algorithm blocks: 0 * 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 Backend phase and start with SimCode phase: time 0.0001141/0.01038, allocations: 120.1 kB / 0.9909 GB, free: 8.844 MB / 0.948 GB Notification: Performance of simCode: created initialization part: time 0.0002661/0.01065, allocations: 168 kB / 0.9911 GB, free: 8.68 MB / 0.948 GB Notification: Performance of simCode: created event and clocks part: time 1.553e-06/0.01065, allocations: 0 / 0.9911 GB, free: 8.68 MB / 0.948 GB Notification: Performance of simCode: created simulation system equations: time 9.886e-05/0.01075, allocations: 82.08 kB / 0.9911 GB, free: 8.602 MB / 0.948 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002081/0.01096, allocations: 33.91 kB / 0.9912 GB, free: 8.57 MB / 0.948 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0005387/0.0115, allocations: 420.9 kB / 0.9916 GB, free: 8.129 MB / 0.948 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000102/0.0116, allocations: 143.1 kB / 0.9917 GB, free: 7.965 MB / 0.948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 6.455e-05/0.01166, allocations: 32.48 kB / 0.9917 GB, free: 7.934 MB / 0.948 GB Notification: Performance of SimCode: time 3.81e-07/0.01166, allocations: 0 / 0.9917 GB, free: 7.934 MB / 0.948 GB Notification: Performance of Templates: time 0.003218/0.01488, allocations: 2.836 MB / 0.9945 GB, free: 5.117 MB / 0.948 GB " [Timeout remaining time 300] make -j1 -f Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.makefile [Timeout 300] (rm -f Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.pipe ; mkfifo Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.pipe ; head -c 1048576 < Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.pipe >> ../files/Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.sim & ./Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS > Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.pipe 2>&1) [Timeout 400] diffSimulationResults("Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Controls_OBC_ASHRAE_G36_TerminalUnits_DualDuctColdDuctMin_Subsequences_Validation_ActiveAirFlow.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Controls.OBC.ASHRAE.G36.TerminalUnits.DualDuctColdDuctMin.Subsequences.Validation.ActiveAirFlow.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: 6.894267768599093]