Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.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 0.001636/0.001636, allocations: 107.9 kB / 20.44 MB, free: 1.188 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 0.001795/0.001795, allocations: 209.9 kB / 23.73 MB, free: 4.387 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 1.445/1.445, allocations: 230.6 MB / 257.5 MB, free: 7.777 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo): time 1.037/1.037, allocations: 120.6 MB / 434.5 MB, free: 0.6133 MB / 334.1 MB " [Timeout remaining time 179] Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 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(ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20,tolerance=1e-07,outputFormat="mat",numberOfIntervals=21600,variableFilter="Qh.1.|Qh.20.|Qh.2.|Qh.3.|Que.1.|Que.20.|Que.2.|Que.3.|Tu.1.|Tu.20.|Tu.2.|Tu.3.|der.Tu.1..|der.Tu.20..|der.Tu.2..|der.Tu.3..|der.x.1..|der.x.20..|der.x.2..|der.x.3..|time|time|u.1.|u.20.|u.2.|u.3.|x.1.|x.20.|x.2.|x.3.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20") translateModel(ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20,tolerance=1e-07,outputFormat="mat",numberOfIntervals=21600,variableFilter="Qh.1.|Qh.20.|Qh.2.|Qh.3.|Que.1.|Que.20.|Que.2.|Que.3.|Tu.1.|Tu.20.|Tu.2.|Tu.3.|der.Tu.1..|der.Tu.20..|der.Tu.2..|der.Tu.3..|der.x.1..|der.x.20..|der.x.2..|der.x.3..|time|time|u.1.|u.20.|u.2.|u.3.|x.1.|x.20.|x.2.|x.3.",fileNamePrefix="ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20") [Timeout 300] "Notification: ScalableTestSuite requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002032/0.002032, allocations: 63.91 kB / 0.6087 GB, free: 8.629 MB / 446.3 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1617/0.1638, allocations: 85.88 MB / 0.6926 GB, free: 2.539 MB / 0.5139 GB Notification: Performance of NFInst.instantiate(ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20): time 0.00285/0.1666, allocations: 1.368 MB / 0.6939 GB, free: 1.164 MB / 0.5139 GB Notification: Performance of NFInst.instExpressions: time 0.001105/0.1677, allocations: 0.5224 MB / 0.6945 GB, free: 0.6406 MB / 0.5139 GB Notification: Performance of NFInst.updateImplicitVariability: time 6.325e-05/0.1678, allocations: 0 / 0.6945 GB, free: 0.6406 MB / 0.5139 GB Notification: Performance of NFTyping.typeComponents: time 8.549e-05/0.1679, allocations: 15.86 kB / 0.6945 GB, free: 0.625 MB / 0.5139 GB Notification: Performance of NFTyping.typeBindings: time 0.0003313/0.1682, allocations: 55.78 kB / 0.6945 GB, free: 0.5703 MB / 0.5139 GB Notification: Performance of NFTyping.typeClassSections: time 0.000142/0.1683, allocations: 43.83 kB / 0.6946 GB, free: 0.5273 MB / 0.5139 GB Notification: Performance of NFFlatten.flatten: time 0.0005704/0.1689, allocations: 0.5459 MB / 0.6951 GB, free: 15.98 MB / 0.5295 GB Notification: Performance of NFFlatten.resolveConnections: time 5.535e-05/0.169, allocations: 4.188 kB / 0.6951 GB, free: 15.98 MB / 0.5295 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0004013/0.1694, allocations: 215.6 kB / 0.6953 GB, free: 15.77 MB / 0.5295 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0005647/0.1699, allocations: 267.5 kB / 0.6956 GB, free: 15.5 MB / 0.5295 GB Notification: Performance of NFPackage.collectConstants: time 9.867e-05/0.17, allocations: 32 kB / 0.6956 GB, free: 15.47 MB / 0.5295 GB Notification: Performance of NFFlatten.collectFunctions: time 0.000182/0.1702, allocations: 55.97 kB / 0.6956 GB, free: 15.42 MB / 0.5295 GB Notification: Performance of NFScalarize.scalarize: time 0.0002872/0.1705, allocations: 235.4 kB / 0.6959 GB, free: 15.19 MB / 0.5295 GB Notification: Performance of NFVerifyModel.verify: time 0.0002614/0.1708, allocations: 215.1 kB / 0.6961 GB, free: 14.98 MB / 0.5295 GB Notification: Performance of NFConvertDAE.convert: time 0.0005074/0.1713, allocations: 446.2 kB / 0.6965 GB, free: 14.54 MB / 0.5295 GB Notification: Performance of FrontEnd - DAE generated: time 1.063e-05/0.1713, allocations: 4 kB / 0.6965 GB, free: 14.54 MB / 0.5295 GB Notification: Performance of FrontEnd: time 1.754e-06/0.1713, allocations: 0 / 0.6965 GB, free: 14.54 MB / 0.5295 GB Notification: Performance of Transformations before backend: time 1.35e-05/0.1713, allocations: 3.938 kB / 0.6965 GB, free: 14.53 MB / 0.5295 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 103 * Number of variables: 103 Notification: Performance of Generate backend data structure: time 0.001832/0.1731, allocations: 0.7512 MB / 0.6972 GB, free: 13.75 MB / 0.5295 GB Notification: Performance of prepare preOptimizeDAE: time 4.888e-05/0.1732, allocations: 12.03 kB / 0.6973 GB, free: 13.74 MB / 0.5295 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001132/0.1733, allocations: 44.7 kB / 0.6973 GB, free: 13.7 MB / 0.5295 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005414/0.1738, allocations: 281.3 kB / 0.6976 GB, free: 13.39 MB / 0.5295 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.244e-05/0.1739, allocations: 29 kB / 0.6976 GB, free: 13.37 MB / 0.5295 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001168/0.174, allocations: 59.91 kB / 0.6977 GB, free: 13.31 MB / 0.5295 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0009557/0.1749, allocations: 0.584 MB / 0.6982 GB, free: 12.71 MB / 0.5295 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.504e-05/0.1749, allocations: 0 / 0.6982 GB, free: 12.71 MB / 0.5295 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 5.011e-05/0.175, allocations: 20 kB / 0.6982 GB, free: 12.7 MB / 0.5295 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.471e-05/0.175, allocations: 8 kB / 0.6982 GB, free: 12.69 MB / 0.5295 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0009154/0.1759, allocations: 0.5815 MB / 0.6988 GB, free: 12.11 MB / 0.5295 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.000765/0.1767, allocations: 0.4886 MB / 0.6993 GB, free: 11.59 MB / 0.5295 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003279/0.18, allocations: 1.323 MB / 0.7006 GB, free: 10.25 MB / 0.5295 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006662/0.1806, allocations: 431.6 kB / 0.701 GB, free: 9.832 MB / 0.5295 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001717/0.1808, allocations: 25 kB / 0.701 GB, free: 9.809 MB / 0.5295 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.503e-05/0.1808, allocations: 39.56 kB / 0.7011 GB, free: 9.762 MB / 0.5295 GB Notification: Performance of pre-optimization done (n=103): time 2.925e-06/0.1808, allocations: 0 / 0.7011 GB, free: 9.762 MB / 0.5295 GB Notification: Performance of matching and sorting (n=103): time 0.002296/0.1831, allocations: 1.354 MB / 0.7024 GB, free: 8.402 MB / 0.5295 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.658e-05/0.1832, allocations: 64.41 kB / 0.7024 GB, free: 8.328 MB / 0.5295 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000195/0.1834, allocations: 179.3 kB / 0.7026 GB, free: 8.145 MB / 0.5295 GB Notification: Performance of collectPreVariables (initialization): time 6.2e-05/0.1835, allocations: 41.7 kB / 0.7027 GB, free: 8.098 MB / 0.5295 GB Notification: Performance of collectInitialEqns (initialization): time 9.356e-05/0.1836, allocations: 110.1 kB / 0.7028 GB, free: 7.984 MB / 0.5295 GB Notification: Performance of collectInitialBindings (initialization): time 0.0003897/0.1839, allocations: 424.4 kB / 0.7032 GB, free: 7.566 MB / 0.5295 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002857/0.1842, allocations: 195 kB / 0.7033 GB, free: 7.367 MB / 0.5295 GB Notification: Performance of setup shared object (initialization): time 0.0002029/0.1844, allocations: 366.8 kB / 0.7037 GB, free: 7 MB / 0.5295 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007268/0.1852, allocations: 478.3 kB / 0.7042 GB, free: 6.535 MB / 0.5295 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007523/0.1859, allocations: 487.5 kB / 0.7046 GB, free: 6.055 MB / 0.5295 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001598/0.1875, allocations: 1.052 MB / 0.7056 GB, free: 5 MB / 0.5295 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.887e-06/0.1875, allocations: 0 / 0.7056 GB, free: 5 MB / 0.5295 GB Notification: Performance of matching and sorting (n=144) (initialization): time 0.001982/0.1895, allocations: 1.242 MB / 0.7069 GB, free: 3.75 MB / 0.5295 GB Notification: Performance of prepare postOptimizeDAE: time 2.653e-05/0.1895, allocations: 8 kB / 0.7069 GB, free: 3.742 MB / 0.5295 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.958e-06/0.1895, allocations: 3.938 kB / 0.7069 GB, free: 3.738 MB / 0.5295 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.724e-05/0.1896, allocations: 4 kB / 0.7069 GB, free: 3.734 MB / 0.5295 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001102/0.1907, allocations: 271.7 kB / 0.7071 GB, free: 3.469 MB / 0.5295 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.717e-05/0.1907, allocations: 4 kB / 0.7071 GB, free: 3.465 MB / 0.5295 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0003733/0.191, allocations: 79.36 kB / 0.7072 GB, free: 3.387 MB / 0.5295 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.038e-05/0.1911, allocations: 39.98 kB / 0.7073 GB, free: 3.348 MB / 0.5295 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 0 () * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (144): * Single equations (assignments): 144 * 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 0.0002921/0.1914, allocations: 217.4 kB / 0.7075 GB, free: 3.125 MB / 0.5295 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 9.456e-05/0.1915, allocations: 47.72 kB / 0.7075 GB, free: 3.078 MB / 0.5295 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002359/0.1939, allocations: 1.385 MB / 0.7089 GB, free: 1.691 MB / 0.5295 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.36e-05/0.1939, allocations: 12 kB / 0.7089 GB, free: 1.68 MB / 0.5295 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.453e-06/0.1939, allocations: 0 / 0.7089 GB, free: 1.68 MB / 0.5295 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.577e-05/0.1939, allocations: 11.97 kB / 0.7089 GB, free: 1.668 MB / 0.5295 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0008757/0.1948, allocations: 0.5902 MB / 0.7095 GB, free: 1.047 MB / 0.5295 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.045e-06/0.1948, allocations: 3.938 kB / 0.7095 GB, free: 1.043 MB / 0.5295 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001409/0.1962, allocations: 303.7 kB / 0.7098 GB, free: 0.7461 MB / 0.5295 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.663e-05/0.1962, allocations: 8 kB / 0.7098 GB, free: 0.7383 MB / 0.5295 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.498e-05/0.1963, allocations: 47.97 kB / 0.7098 GB, free: 0.6914 MB / 0.5295 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.264e-06/0.1963, allocations: 4 kB / 0.7098 GB, free: 0.6875 MB / 0.5295 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.442e-06/0.1963, allocations: 0 / 0.7098 GB, free: 0.6875 MB / 0.5295 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002829/0.1991, allocations: 1.863 MB / 0.7116 GB, free: 14.8 MB / 0.5452 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0004382/0.1996, allocations: 175.2 kB / 0.7118 GB, free: 14.63 MB / 0.5452 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001132/0.1997, allocations: 43.97 kB / 0.7118 GB, free: 14.59 MB / 0.5452 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003291/0.2, allocations: 20 kB / 0.7119 GB, free: 14.57 MB / 0.5452 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001527/0.2002, allocations: 85.14 kB / 0.7119 GB, free: 14.48 MB / 0.5452 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.538e-05/0.2002, allocations: 43.98 kB / 0.712 GB, free: 14.44 MB / 0.5452 GB Notification: Performance of sorting global known variables: time 0.0001182/0.2004, allocations: 127.2 kB / 0.7121 GB, free: 14.31 MB / 0.5452 GB Notification: Performance of sort global known variables: time 1.3e-07/0.2004, allocations: 4 kB / 0.7121 GB, free: 14.31 MB / 0.5452 GB Notification: Performance of remove unused functions: time 0.0005799/0.2009, allocations: 235.9 kB / 0.7123 GB, free: 14.08 MB / 0.5452 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 41 (Td,Tu[1],Tu[2],Tu[3],Tu[4],Tu[5],Tu[6],Tu[7],Tu[8],Tu[9],Tu[10],Tu[11],Tu[12],Tu[13],Tu[14],Tu[15],Tu[16],Tu[17],Tu[18],Tu[19],Tu[20],x[1],x[2],x[3],x[4],x[5],x[6],x[7],x[8],x[9],x[10],x[11],x[12],x[13],x[14],x[15],x[16],x[17],x[18],x[19],x[20]) * 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 (144): * Single equations (assignments): 144 * 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 0.0002749/0.2012, allocations: 164.8 kB / 0.7125 GB, free: 13.91 MB / 0.5452 GB Notification: Performance of simCode: created initialization part: time 0.001816/0.203, allocations: 1.089 MB / 0.7135 GB, free: 12.82 MB / 0.5452 GB Notification: Performance of simCode: created event and clocks part: time 2.695e-06/0.203, allocations: 0 / 0.7135 GB, free: 12.82 MB / 0.5452 GB Notification: Performance of simCode: created simulation system equations: time 0.0008996/0.2039, allocations: 0.6007 MB / 0.7141 GB, free: 12.22 MB / 0.5452 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0004968/0.2044, allocations: 111.9 kB / 0.7142 GB, free: 12.11 MB / 0.5452 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004492/0.2089, allocations: 2.846 MB / 0.717 GB, free: 9.23 MB / 0.5452 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0003312/0.2093, allocations: 326.3 kB / 0.7173 GB, free: 8.891 MB / 0.5452 GB Notification: Performance of simCode: alias equations: time 0.0008445/0.2101, allocations: 368.8 kB / 0.7177 GB, free: 8.527 MB / 0.5452 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002934/0.2104, allocations: 91.41 kB / 0.7178 GB, free: 8.438 MB / 0.5452 GB Notification: Performance of SimCode: time 6.42e-07/0.2104, allocations: 4 kB / 0.7178 GB, free: 8.434 MB / 0.5452 GB Notification: Performance of Templates: time 0.01924/0.2296, allocations: 10.44 MB / 0.728 GB, free: 14.07 MB / 0.5608 GB " [Timeout remaining time 300] make -j1 -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.makefile [Timeout 300] (rm -f ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.pipe ; mkfifo ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.pipe ; head -c 1048576 < ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.pipe >> ../files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.sim & ./ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20 -s=ida -abortSlowSimulation -alarm=300 -emit_protected -lv LOG_STATS > ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.pipe 2>&1) [Timeout 300] diffSimulationResults("ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20_res.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ScalableTestSuite_noopt_ScalableTestSuite.Thermal.DistrictHeating.ScaledExperiments.HeatingSystem_N_20.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: 16.431228248868138]