Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.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 0.0009201/0.0009201, allocations: 92.2 kB / 20.19 MB, free: 4.359 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 0.0009271/0.0009271, allocations: 173 kB / 23.49 MB, free: 1.055 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 0.9175/0.9175, allocations: 177.1 MB / 203.8 MB, free: 5.637 MB / 186.7 MB " [Timeout remaining time 179] 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 2.024/2.024, allocations: 429.5 MB / 0.6736 GB, free: 4.051 MB / 0.6355 GB " [Timeout remaining time 177] 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.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|hexWetNTU.Q1_flow|hexWetNTU_TX.Q1_flow|hexWetNTU.sta_b2.T|hexWetNTU_TX.sta_b2.T|relHumOut_eps.phi|hexWetNTU.SHR|hexWetNTU.dryFra|hexWetNTU.UA_nominal|hexWetNTU_TX.UA_nominal",fileNamePrefix="Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU") translateModel(Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|hexWetNTU.Q1_flow|hexWetNTU_TX.Q1_flow|hexWetNTU.sta_b2.T|hexWetNTU_TX.sta_b2.T|relHumOut_eps.phi|hexWetNTU.SHR|hexWetNTU.dryFra|hexWetNTU.UA_nominal|hexWetNTU_TX.UA_nominal",fileNamePrefix="Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.352e-06/1.352e-06, allocations: 0 / 0.8782 GB, free: 6.629 MB / 0.8386 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.712e-05/2.847e-05, allocations: 2.312 kB / 0.8782 GB, free: 6.625 MB / 0.8386 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU): time 0.7543/0.7543, allocations: 374.2 MB / 1.244 GB, free: 9.684 MB / 1.026 GB Notification: Performance of NFInst.instExpressions: time 0.04062/0.795, allocations: 35.4 MB / 1.278 GB, free: 1.547 MB / 1.042 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.006716/0.8017, allocations: 221 kB / 1.278 GB, free: 1.434 MB / 1.042 GB Notification: Performance of NFTyping.typeComponents: time 0.006341/0.808, allocations: 2.36 MB / 1.281 GB, free: 15.75 MB / 1.057 GB Notification: Performance of NFTyping.typeBindings: time 0.01771/0.8257, allocations: 8.172 MB / 1.289 GB, free: 9.359 MB / 1.057 GB Notification: Performance of NFTyping.typeClassSections: time 0.01023/0.836, allocations: 5.256 MB / 1.294 GB, free: 5.297 MB / 1.057 GB Notification: Performance of NFFlatten.flatten: time 0.01336/0.8493, allocations: 11.57 MB / 1.305 GB, free: 12.28 MB / 1.073 GB Notification: Performance of NFFlatten.resolveConnections: time 0.005014/0.8543, allocations: 3.275 MB / 1.308 GB, free: 8.945 MB / 1.073 GB Notification: Performance of NFEvalConstants.evaluate: time 0.01591/0.8702, allocations: 7.986 MB / 1.316 GB, free: 1.109 MB / 1.073 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00614/0.8764, allocations: 3.107 MB / 1.319 GB, free: 14.03 MB / 1.089 GB Notification: Performance of NFPackage.collectConstants: time 0.001289/0.8777, allocations: 0.5625 MB / 1.32 GB, free: 13.46 MB / 1.089 GB Notification: Performance of NFFlatten.collectFunctions: time 0.01085/0.8885, allocations: 5.824 MB / 1.325 GB, free: 7.625 MB / 1.089 GB Notification: Performance of NFScalarize.scalarize: time 0.002052/0.8906, allocations: 1.612 MB / 1.327 GB, free: 6.008 MB / 1.089 GB Notification: Performance of NFVerifyModel.verify: time 0.003775/0.8943, allocations: 2.015 MB / 1.329 GB, free: 3.988 MB / 1.089 GB Notification: Performance of NFConvertDAE.convert: time 0.01884/0.9132, allocations: 7.328 MB / 1.336 GB, free: 12.64 MB / 1.104 GB Notification: Performance of FrontEnd - DAE generated: time 6.763e-06/0.9132, allocations: 0 / 1.336 GB, free: 12.64 MB / 1.104 GB Notification: Performance of FrontEnd: time 1.844e-06/0.9132, allocations: 0 / 1.336 GB, free: 12.64 MB / 1.104 GB Notification: Performance of Transformations before backend: time 0.0001163/0.9133, allocations: 3.938 kB / 1.336 GB, free: 12.63 MB / 1.104 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 859 * Number of variables: 859 Notification: Performance of Generate backend data structure: time 0.00874/0.922, allocations: 6.324 MB / 1.342 GB, free: 6.207 MB / 1.104 GB Notification: Performance of prepare preOptimizeDAE: time 4.886e-05/0.9221, allocations: 8.031 kB / 1.342 GB, free: 6.199 MB / 1.104 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.016/0.9381, allocations: 4.165 MB / 1.346 GB, free: 2.023 MB / 1.104 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.006637/0.9447, allocations: 3.897 MB / 1.35 GB, free: 14.05 MB / 1.12 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002897/0.945, allocations: 347.1 kB / 1.351 GB, free: 13.7 MB / 1.12 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0006773/0.9457, allocations: 379.9 kB / 1.351 GB, free: 13.33 MB / 1.12 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.006744/0.9524, allocations: 4.019 MB / 1.355 GB, free: 9.156 MB / 1.12 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.895e-05/0.9525, allocations: 7.938 kB / 1.355 GB, free: 9.148 MB / 1.12 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0003196/0.9528, allocations: 140 kB / 1.355 GB, free: 9.012 MB / 1.12 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.0001015/0.9529, allocations: 138.6 kB / 1.355 GB, free: 8.875 MB / 1.12 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004795/0.9577, allocations: 2.572 MB / 1.358 GB, free: 6.293 MB / 1.12 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 0.02101/0.9787, allocations: 14.77 MB / 1.372 GB, free: 7.34 MB / 1.135 GB Notification: Performance of preOpt comSubExp (simulation): time 0.003466/0.9822, allocations: 2 MB / 1.374 GB, free: 5.348 MB / 1.135 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001401/0.9836, allocations: 0.8596 MB / 1.375 GB, free: 4.484 MB / 1.135 GB Notification: Performance of preOpt evalFunc (simulation): time 0.00775/0.9913, allocations: 4.772 MB / 1.379 GB, free: 15.68 MB / 1.151 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.002016/0.9933, allocations: 1.471 MB / 1.381 GB, free: 14.13 MB / 1.151 GB Notification: Performance of pre-optimization done (n=228): time 4.829e-06/0.9934, allocations: 0 / 1.381 GB, free: 14.13 MB / 1.151 GB Notification: Performance of matching and sorting (n=228): time 0.01051/1.004, allocations: 4.05 MB / 1.385 GB, free: 10.05 MB / 1.151 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.17e-05/1.004, allocations: 128.8 kB / 1.385 GB, free: 9.898 MB / 1.151 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.004686/1.009, allocations: 3.169 MB / 1.388 GB, free: 6.699 MB / 1.151 GB Notification: Performance of collectPreVariables (initialization): time 0.000539/1.009, allocations: 85.7 kB / 1.388 GB, free: 6.609 MB / 1.151 GB Notification: Performance of collectInitialEqns (initialization): time 0.001691/1.011, allocations: 2.029 MB / 1.39 GB, free: 4.566 MB / 1.151 GB Notification: Performance of collectInitialBindings (initialization): time 0.0009977/1.012, allocations: 0.825 MB / 1.391 GB, free: 3.734 MB / 1.151 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001632/1.013, allocations: 0.8793 MB / 1.392 GB, free: 2.844 MB / 1.151 GB Notification: Performance of setup shared object (initialization): time 0.0001944/1.014, allocations: 488.8 kB / 1.392 GB, free: 2.363 MB / 1.151 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002504/1.016, allocations: 0.948 MB / 1.393 GB, free: 1.414 MB / 1.151 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.003503/1.02, allocations: 2.857 MB / 1.396 GB, free: 13.9 MB / 1.167 GB Notification: It was not possible to check the given initialization system for consistency symbolically, because the relevant equations are part of an algebraic loop. This is not supported yet. Notification: Performance of analyzeInitialSystem (initialization): time 0.006139/1.026, allocations: 3.231 MB / 1.399 GB, free: 10.21 MB / 1.167 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.784e-05/1.026, allocations: 8 kB / 1.399 GB, free: 10.2 MB / 1.167 GB Notification: Performance of matching and sorting (n=474) (initialization): time 0.01149/1.037, allocations: 4.207 MB / 1.403 GB, free: 5.914 MB / 1.167 GB Notification: Performance of prepare postOptimizeDAE: time 3.978e-05/1.037, allocations: 20.06 kB / 1.403 GB, free: 5.895 MB / 1.167 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.788e-05/1.037, allocations: 24 kB / 1.403 GB, free: 5.871 MB / 1.167 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.005046/1.042, allocations: 1.441 MB / 1.405 GB, free: 4.391 MB / 1.167 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.005376/1.048, allocations: 1.248 MB / 1.406 GB, free: 3.141 MB / 1.167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.01131/1.059, allocations: 16.81 MB / 1.422 GB, free: 1.34 MB / 1.182 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.005583/1.065, allocations: 0.7559 MB / 1.423 GB, free: 0.582 MB / 1.182 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0007056/1.065, allocations: 199.8 kB / 1.423 GB, free: 396 kB / 1.182 GB Warning: The initial conditions are over specified. The following 2 initial equations are redundant, so they are removed from the initialization system: hexWetNTU.UAFroRated.TAirIn = 293.15 hexWetNTU.UAFroRated.TWatIn = 293.15. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 105 * Number of states: 0 () * Number of discrete variables: 11 (hexWetNTU.UAFroRated.isFulWet,hexWetNTU.UAFroRated.isFulDry,$PRE.w_a2.nextTimeEvent,$whenCondition1,hexWetNTU_TX.flowRegime_nominal,hexWetNTU_TX.UAFroRated.isFulWet,hexWetNTU_TX.UAFroRated.isFulDry,hexWetNTU.flowRegime_nominal,w_a2.nextTimeEventScaled,$PRE.w_a2.nextTimeEventScaled,w_a2.nextTimeEvent) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (444): * Single equations (assignments): 429 * Array equations: 4 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 9 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 0 systems * Non-linear Jacobian (size): 2 systems {1, 1} * Without analytic Jacobian (size): 0 systems 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): 9 systems {(1,1), (1,3), (1,2), (1,2), (1,4), (1,2), (1,4), (1,2), (5,2)} Notification: Performance of prepare postOptimizeDAE: time 0.00155/1.067, allocations: 383.5 kB / 1.424 GB, free: 0 / 1.182 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001395/1.068, allocations: 469.4 kB / 1.424 GB, free: 15.54 MB / 1.198 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.00694/1.075, allocations: 3.236 MB / 1.427 GB, free: 12.26 MB / 1.198 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.195e-05/1.075, allocations: 31.88 kB / 1.427 GB, free: 12.23 MB / 1.198 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.502e-06/1.075, allocations: 4 kB / 1.427 GB, free: 12.22 MB / 1.198 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.804e-05/1.075, allocations: 11.95 kB / 1.427 GB, free: 12.21 MB / 1.198 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01166/1.087, allocations: 6.599 MB / 1.434 GB, free: 5.453 MB / 1.198 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.025e-05/1.087, allocations: 4 kB / 1.434 GB, free: 5.449 MB / 1.198 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001884/1.089, allocations: 0.5387 MB / 1.434 GB, free: 4.91 MB / 1.198 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.003675/1.093, allocations: 1.309 MB / 1.436 GB, free: 3.566 MB / 1.198 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002408/1.093, allocations: 79.91 kB / 1.436 GB, free: 3.488 MB / 1.198 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.007936/1.101, allocations: 13.08 MB / 1.448 GB, free: 5.582 MB / 1.214 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 4.318e-06/1.101, allocations: 4 kB / 1.448 GB, free: 5.578 MB / 1.214 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.008757/1.11, allocations: 3.95 MB / 1.452 GB, free: 1.504 MB / 1.214 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002/1.112, allocations: 0.9675 MB / 1.453 GB, free: 0.5352 MB / 1.214 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0007073/1.112, allocations: 44 kB / 1.453 GB, free: 0.4922 MB / 1.214 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002166/1.114, allocations: 304.7 kB / 1.454 GB, free: 200 kB / 1.214 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0003147/1.115, allocations: 173.6 kB / 1.454 GB, free: 28 kB / 1.214 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002078/1.115, allocations: 111.9 kB / 1.454 GB, free: 15.92 MB / 1.229 GB Notification: Performance of sorting global known variables: time 0.002628/1.118, allocations: 1.768 MB / 1.456 GB, free: 14.14 MB / 1.229 GB Notification: Performance of sort global known variables: time 7e-08/1.118, allocations: 0 / 1.456 GB, free: 14.14 MB / 1.229 GB Notification: Performance of remove unused functions: time 0.004112/1.122, allocations: 1.661 MB / 1.457 GB, free: 12.47 MB / 1.229 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 16 * Number of states: 8 (relHumIn.phi,TDryBulIn.T,senMasFraIn.X,senMasFraOut.X,TDryBulOut.T,hexWetNTU.dryWetCalcs.fullyWet.TWatOutEst,relHumOut_eps.phi,hexWetNTU_TX.dryWetCalcs.fullyWet.TWatOutEst) * Number of discrete variables: 3 ($whenCondition1,w_a2.nextTimeEvent,w_a2.nextTimeEventScaled) * Number of discrete states: 2 (w_a2.nextTimeEvent,w_a2.nextTimeEventScaled) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (226): * Single equations (assignments): 213 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 3 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 8 * 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): 8 systems {(1,4), (1,2), (1,4), (1,2), (1,1), (1,1), (1,3), (1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002044/1.124, allocations: 1.054 MB / 1.458 GB, free: 11.56 MB / 1.229 GB Notification: Performance of simCode: created initialization part: time 0.007175/1.131, allocations: 3.742 MB / 1.462 GB, free: 7.727 MB / 1.229 GB Notification: Performance of simCode: created event and clocks part: time 5.631e-06/1.131, allocations: 0 / 1.462 GB, free: 7.727 MB / 1.229 GB Notification: Performance of simCode: created simulation system equations: time 0.002592/1.133, allocations: 2.139 MB / 1.464 GB, free: 5.473 MB / 1.229 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005097/1.139, allocations: 1.764 MB / 1.466 GB, free: 3.75 MB / 1.229 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01436/1.153, allocations: 7.722 MB / 1.473 GB, free: 11.91 MB / 1.245 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0007207/1.154, allocations: 0.7409 MB / 1.474 GB, free: 11.16 MB / 1.245 GB Notification: Performance of simCode: alias equations: time 0.003893/1.158, allocations: 0.9188 MB / 1.475 GB, free: 10.25 MB / 1.245 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001367/1.159, allocations: 340.3 kB / 1.475 GB, free: 9.918 MB / 1.245 GB Notification: Performance of SimCode: time 2.033e-06/1.159, allocations: 0 / 1.475 GB, free: 9.918 MB / 1.245 GB Notification: Performance of Templates: time 0.5476/1.707, allocations: 89.86 MB / 1.563 GB, free: 233.5 MB / 1.307 GB " [Timeout remaining time 298] make -j1 -f Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.makefile [Timeout 300] (rm -f Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe ; mkfifo Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe >> ../files/Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.sim & ./Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU -abortSlowSimulation -alarm=240 -emit_protected -lv LOG_STATS > Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU.pipe 2>&1) [Timeout 240] diffSimulationResults("Buildings_latest_Buildings.Fluid.HeatExchangers.Validation.WetCoilEffectivenessNTU_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_HeatExchangers_Validation_WetCoilEffectivenessNTU.csv","",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 8.954458438092843]