Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.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 0.0009687/0.0009687, allocations: 80.92 kB / 20.75 MB, free: 3.742 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 0.0009735/0.0009735, allocations: 161 kB / 24.17 MB, free: 332 kB / 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 0.9514/0.9514, allocations: 177.1 MB / 204.6 MB, free: 5.48 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo): time 1.878/1.878, allocations: 389.6 MB / 0.6354 GB, free: 12.28 MB / 0.6042 GB " [Timeout remaining time 178] Using package Buildings with version 13.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.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.Fluid.Interfaces.Examples.ReverseFlowHumidifier,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier") translateModel(Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.593e-06/1.593e-06, allocations: 0 / 0.7752 GB, free: 5.41 MB / 0.7292 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.038e-05/2.197e-05, allocations: 2.312 kB / 0.7752 GB, free: 5.406 MB / 0.7292 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier): time 0.1497/0.1497, allocations: 159.6 MB / 0.9311 GB, free: 5.379 MB / 0.8855 GB Notification: Performance of NFInst.instExpressions: time 0.01163/0.1613, allocations: 6.174 MB / 0.9371 GB, free: 15.2 MB / 0.9011 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001229/0.1625, allocations: 99.19 kB / 0.9372 GB, free: 15.1 MB / 0.9011 GB Notification: Performance of NFTyping.typeComponents: time 0.000831/0.1634, allocations: 484.4 kB / 0.9376 GB, free: 14.62 MB / 0.9011 GB Notification: Performance of NFTyping.typeBindings: time 0.002792/0.1662, allocations: 1.95 MB / 0.9395 GB, free: 12.66 MB / 0.9011 GB Notification: Performance of NFTyping.typeClassSections: time 0.001935/0.1681, allocations: 1.411 MB / 0.9409 GB, free: 11.25 MB / 0.9011 GB Notification: Performance of NFFlatten.flatten: time 0.003441/0.1715, allocations: 4.815 MB / 0.9456 GB, free: 6.418 MB / 0.9011 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001375/0.1729, allocations: 1.466 MB / 0.9471 GB, free: 4.898 MB / 0.9011 GB Notification: Performance of NFEvalConstants.evaluate: time 0.003067/0.176, allocations: 2.767 MB / 0.9498 GB, free: 2.234 MB / 0.9011 GB Notification: Performance of NFSimplifyModel.simplify: time 0.001187/0.1772, allocations: 1.316 MB / 0.951 GB, free: 0.9141 MB / 0.9011 GB Notification: Performance of NFPackage.collectConstants: time 0.0001984/0.1774, allocations: 184 kB / 0.9512 GB, free: 0.7344 MB / 0.9011 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0009749/0.1783, allocations: 0.7563 MB / 0.952 GB, free: 15.97 MB / 0.9167 GB Notification: Performance of NFScalarize.scalarize: time 0.0004721/0.1788, allocations: 0.7829 MB / 0.9527 GB, free: 15.19 MB / 0.9167 GB Notification: Performance of NFVerifyModel.verify: time 0.0006652/0.1795, allocations: 0.7913 MB / 0.9535 GB, free: 14.4 MB / 0.9167 GB Notification: Performance of NFConvertDAE.convert: time 0.00184/0.1813, allocations: 2.032 MB / 0.9555 GB, free: 12.36 MB / 0.9167 GB Notification: Performance of FrontEnd - DAE generated: time 2.485e-06/0.1813, allocations: 0 / 0.9555 GB, free: 12.36 MB / 0.9167 GB Notification: Performance of FrontEnd: time 1.623e-06/0.1813, allocations: 0 / 0.9555 GB, free: 12.36 MB / 0.9167 GB Notification: Performance of Transformations before backend: time 2.061e-05/0.1813, allocations: 0 / 0.9555 GB, free: 12.36 MB / 0.9167 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 324 * Number of variables: 324 Notification: Performance of Generate backend data structure: time 0.002209/0.1836, allocations: 2.193 MB / 0.9576 GB, free: 10.12 MB / 0.9167 GB Notification: Performance of prepare preOptimizeDAE: time 3.221e-05/0.1836, allocations: 17.34 kB / 0.9576 GB, free: 10.11 MB / 0.9167 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001569/0.1852, allocations: 0.5731 MB / 0.9582 GB, free: 9.531 MB / 0.9167 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001255/0.1864, allocations: 1.062 MB / 0.9592 GB, free: 8.418 MB / 0.9167 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 5.404e-05/0.1865, allocations: 102.5 kB / 0.9593 GB, free: 8.316 MB / 0.9167 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001461/0.1866, allocations: 151.9 kB / 0.9595 GB, free: 8.168 MB / 0.9167 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001078/0.1877, allocations: 1.408 MB / 0.9609 GB, free: 6.605 MB / 0.9167 GB Notification: Performance of preOpt findStateOrder (simulation): time 2.406e-05/0.1877, allocations: 0 / 0.9609 GB, free: 6.605 MB / 0.9167 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 7.871e-05/0.1878, allocations: 52 kB / 0.9609 GB, free: 6.555 MB / 0.9167 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.845e-05/0.1878, allocations: 50.52 kB / 0.961 GB, free: 6.504 MB / 0.9167 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005706/0.1884, allocations: 442.8 kB / 0.9614 GB, free: 6.055 MB / 0.9167 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 0.003743/0.1921, allocations: 3.316 MB / 0.9646 GB, free: 2.656 MB / 0.9167 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004532/0.1926, allocations: 416.3 kB / 0.965 GB, free: 2.238 MB / 0.9167 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001593/0.1928, allocations: 157.3 kB / 0.9652 GB, free: 2.082 MB / 0.9167 GB Notification: Performance of preOpt evalFunc (simulation): time 9.168e-05/0.1928, allocations: 36.62 kB / 0.9652 GB, free: 2.047 MB / 0.9167 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.544e-05/0.1929, allocations: 43.22 kB / 0.9652 GB, free: 1.996 MB / 0.9167 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0004893/0.1934, allocations: 207.2 kB / 0.9654 GB, free: 1.793 MB / 0.9167 GB Notification: Performance of pre-optimization done (n=67): time 1.793e-06/0.1934, allocations: 0 / 0.9654 GB, free: 1.793 MB / 0.9167 GB Notification: Performance of matching and sorting (n=67): time 0.0006677/0.194, allocations: 493.7 kB / 0.9659 GB, free: 1.305 MB / 0.9167 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.861e-05/0.1941, allocations: 60.06 kB / 0.966 GB, free: 1.234 MB / 0.9167 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0005986/0.1947, allocations: 0.9572 MB / 0.9669 GB, free: 264 kB / 0.9167 GB Notification: Performance of collectPreVariables (initialization): time 5.76e-05/0.1947, allocations: 45.7 kB / 0.9669 GB, free: 212 kB / 0.9167 GB Notification: Performance of collectInitialEqns (initialization): time 0.0004402/0.1952, allocations: 0.6241 MB / 0.9676 GB, free: 15.57 MB / 0.9323 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001422/0.1953, allocations: 257.7 kB / 0.9678 GB, free: 15.32 MB / 0.9323 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0002442/0.1955, allocations: 198.4 kB / 0.968 GB, free: 15.12 MB / 0.9323 GB Notification: Performance of setup shared object (initialization): time 9.902e-05/0.1956, allocations: 349.9 kB / 0.9683 GB, free: 14.77 MB / 0.9323 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000214/0.1959, allocations: 119.6 kB / 0.9684 GB, free: 14.65 MB / 0.9323 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0005009/0.1964, allocations: 0.8423 MB / 0.9693 GB, free: 13.57 MB / 0.9323 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0006333/0.197, allocations: 0.5749 MB / 0.9698 GB, free: 12.9 MB / 0.9323 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 6.462e-06/0.197, allocations: 4 kB / 0.9698 GB, free: 12.89 MB / 0.9323 GB Notification: Performance of matching and sorting (n=121) (initialization): time 0.0008496/0.1978, allocations: 0.5896 MB / 0.9704 GB, free: 12.29 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 2.263e-05/0.1979, allocations: 11.94 kB / 0.9704 GB, free: 12.28 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.222e-05/0.1979, allocations: 8 kB / 0.9704 GB, free: 12.27 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.292e-05/0.1979, allocations: 12 kB / 0.9704 GB, free: 12.26 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006319/0.1985, allocations: 215.6 kB / 0.9706 GB, free: 12.05 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.302e-05/0.1985, allocations: 12 kB / 0.9706 GB, free: 12.04 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0006432/0.1992, allocations: 51.47 kB / 0.9707 GB, free: 11.99 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.9e-05/0.1993, allocations: 40.17 kB / 0.9707 GB, free: 11.95 MB / 0.9323 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0003725/0.1996, allocations: 223.7 kB / 0.9709 GB, free: 11.72 MB / 0.9323 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0004792/0.2001, allocations: 0.8385 MB / 0.9718 GB, free: 10.65 MB / 0.9323 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0005986/0.2007, allocations: 0.5606 MB / 0.9723 GB, free: 9.988 MB / 0.9323 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 3.577e-06/0.2007, allocations: 0 / 0.9723 GB, free: 9.988 MB / 0.9323 GB Notification: Performance of matching and sorting (n=121) (initialization_lambda0): time 0.0008061/0.2015, allocations: 0.5936 MB / 0.9729 GB, free: 9.383 MB / 0.9323 GB Notification: Performance of prepare postOptimizeDAE: time 1.194e-05/0.2015, allocations: 8 kB / 0.9729 GB, free: 9.375 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.997e-06/0.2015, allocations: 16.03 kB / 0.9729 GB, free: 9.359 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.097e-05/0.2015, allocations: 12 kB / 0.9729 GB, free: 9.348 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005932/0.2021, allocations: 211.6 kB / 0.9731 GB, free: 9.141 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 1.364e-05/0.2022, allocations: 15.94 kB / 0.9731 GB, free: 9.125 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000633/0.2028, allocations: 43.97 kB / 0.9732 GB, free: 9.082 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.396e-05/0.2029, allocations: 39.97 kB / 0.9732 GB, free: 9.043 MB / 0.9323 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 32 * 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 (119): * Single equations (assignments): 117 * Array equations: 2 * 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 0.0001744/0.203, allocations: 240 kB / 0.9735 GB, free: 8.801 MB / 0.9323 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001658/0.2032, allocations: 112 kB / 0.9736 GB, free: 8.691 MB / 0.9323 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0008311/0.204, allocations: 490.8 kB / 0.974 GB, free: 8.203 MB / 0.9323 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.652e-06/0.204, allocations: 11.98 kB / 0.974 GB, free: 8.191 MB / 0.9323 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 2.284e-06/0.204, allocations: 0 / 0.974 GB, free: 8.191 MB / 0.9323 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.0003964/0.2044, allocations: 445.2 kB / 0.9745 GB, free: 7.711 MB / 0.9323 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001675/0.2061, allocations: 1.252 MB / 0.9757 GB, free: 6.395 MB / 0.9323 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.076e-06/0.2061, allocations: 192 / 0.9757 GB, free: 6.395 MB / 0.9323 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0005379/0.2066, allocations: 167.8 kB / 0.9758 GB, free: 6.23 MB / 0.9323 GB Notification: Performance of postOpt tearingSystem (simulation): time 5.59e-06/0.2067, allocations: 7.938 kB / 0.9759 GB, free: 6.223 MB / 0.9323 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.107e-05/0.2067, allocations: 19.98 kB / 0.9759 GB, free: 6.203 MB / 0.9323 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.629e-06/0.2067, allocations: 4 kB / 0.9759 GB, free: 6.199 MB / 0.9323 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 2.234e-06/0.2067, allocations: 0 / 0.9759 GB, free: 6.199 MB / 0.9323 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0008227/0.2075, allocations: 0.7197 MB / 0.9766 GB, free: 5.434 MB / 0.9323 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0003207/0.2078, allocations: 179 kB / 0.9767 GB, free: 5.258 MB / 0.9323 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001284/0.208, allocations: 16 kB / 0.9768 GB, free: 5.242 MB / 0.9323 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004811/0.2085, allocations: 27.98 kB / 0.9768 GB, free: 5.215 MB / 0.9323 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.857e-05/0.2085, allocations: 44.52 kB / 0.9768 GB, free: 5.172 MB / 0.9323 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.721e-05/0.2086, allocations: 35.98 kB / 0.9769 GB, free: 5.137 MB / 0.9323 GB Notification: Performance of sorting global known variables: time 0.0004402/0.209, allocations: 481.9 kB / 0.9773 GB, free: 4.66 MB / 0.9323 GB Notification: Performance of sort global known variables: time 7e-08/0.209, allocations: 0 / 0.9773 GB, free: 4.66 MB / 0.9323 GB Notification: Performance of remove unused functions: time 0.001454/0.2105, allocations: 0.8809 MB / 0.9782 GB, free: 3.777 MB / 0.9323 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 6 (humBac.vol.dynBal.medium.Xi[1],humBac.vol.dynBal.U,humBac.vol.dynBal.m,humFor.vol.dynBal.medium.Xi[1],humFor.vol.dynBal.U,humFor.vol.dynBal.m) * 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 (71): * Single equations (assignments): 71 * 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 0.0002722/0.2107, allocations: 152.1 kB / 0.9783 GB, free: 3.621 MB / 0.9323 GB Notification: Performance of simCode: created initialization part: time 0.0009517/0.2117, allocations: 0.7154 MB / 0.979 GB, free: 2.91 MB / 0.9323 GB Notification: Performance of simCode: created event and clocks part: time 2.078e-05/0.2117, allocations: 16.5 kB / 0.979 GB, free: 2.895 MB / 0.9323 GB Notification: Performance of simCode: created simulation system equations: time 0.0002277/0.2119, allocations: 191.4 kB / 0.9792 GB, free: 2.703 MB / 0.9323 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001994/0.2139, allocations: 0.7592 MB / 0.98 GB, free: 1.953 MB / 0.9323 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003304/0.2172, allocations: 2.461 MB / 0.9824 GB, free: 15.43 MB / 0.948 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002698/0.2175, allocations: 334.8 kB / 0.9827 GB, free: 15.08 MB / 0.948 GB Notification: Performance of simCode: alias equations: time 0.0008557/0.2184, allocations: 267.1 kB / 0.9829 GB, free: 14.81 MB / 0.948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001247/0.2196, allocations: 0.5438 MB / 0.9835 GB, free: 14.26 MB / 0.948 GB Notification: Performance of SimCode: time 1.052e-06/0.2196, allocations: 4 kB / 0.9835 GB, free: 14.26 MB / 0.948 GB Notification: Performance of Templates: time 0.03864/0.2583, allocations: 29.28 MB / 1.012 GB, free: 1.66 MB / 0.9636 GB " [Timeout remaining time 300] make -j1 -f Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.makefile [Timeout 300] (rm -f Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe ; mkfifo Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe >> ../files/Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.sim & ./Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier -abortSlowSimulation -alarm=240 -lv LOG_STATS > Buildings_13_Buildings.Fluid.Interfaces.Examples.ReverseFlowHumidifier.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 5.68909422820434]