Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.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 0.001415/0.001415, allocations: 109.2 kB / 18.94 MB, free: 2.949 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 0.001624/0.001624, allocations: 219.5 kB / 22.26 MB, free: 5.125 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 1.499/1.499, allocations: 230.6 MB / 256 MB, free: 7.969 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo): time 2.852/2.852, allocations: 476.7 MB / 0.7707 GB, free: 4.227 MB / 0.6231 GB " [Timeout remaining time 177] Using package Buildings with version 11.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.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: "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance,fileNamePrefix="Buildings_11_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance,fileNamePrefix="Buildings_11_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Buildings 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 0.002084/0.002084, allocations: 79.56 kB / 1.117 GB, free: 8.914 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3546/0.3567, allocations: 169.9 MB / 1.283 GB, free: 3.699 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance): time 0.3022/0.6588, allocations: 227 MB / 1.505 GB, free: 15.87 MB / 1.217 GB Notification: Performance of NFInst.instExpressions: time 0.02116/0.68, allocations: 12.22 MB / 1.517 GB, free: 3.621 MB / 1.217 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.003234/0.6832, allocations: 99.19 kB / 1.517 GB, free: 3.523 MB / 1.217 GB Notification: Performance of NFTyping.typeComponents: time 0.00285/0.6861, allocations: 0.8966 MB / 1.518 GB, free: 2.621 MB / 1.217 GB Notification: Performance of NFTyping.typeBindings: time 0.009265/0.6954, allocations: 3.027 MB / 1.521 GB, free: 15.58 MB / 1.232 GB Notification: Performance of NFTyping.typeClassSections: time 0.004719/0.7001, allocations: 1.509 MB / 1.522 GB, free: 14.07 MB / 1.232 GB Notification: Performance of NFFlatten.flatten: time 0.007923/0.708, allocations: 4.572 MB / 1.527 GB, free: 9.492 MB / 1.232 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003151/0.7111, allocations: 1.382 MB / 1.528 GB, free: 8.07 MB / 1.232 GB Notification: Performance of NFEvalConstants.evaluate: time 0.007227/0.7184, allocations: 2.607 MB / 1.531 GB, free: 5.461 MB / 1.232 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003896/0.7223, allocations: 1.667 MB / 1.532 GB, free: 3.805 MB / 1.232 GB Notification: Performance of NFPackage.collectConstants: time 0.0005261/0.7228, allocations: 180 kB / 1.533 GB, free: 3.629 MB / 1.232 GB Notification: Performance of NFFlatten.collectFunctions: time 0.005022/0.7278, allocations: 2.342 MB / 1.535 GB, free: 1.281 MB / 1.232 GB Notification: Performance of NFScalarize.scalarize: time 0.0008916/0.7287, allocations: 0.7321 MB / 1.536 GB, free: 0.5469 MB / 1.232 GB Notification: Performance of NFVerifyModel.verify: time 0.001512/0.7302, allocations: 1.05 MB / 1.537 GB, free: 15.49 MB / 1.248 GB Notification: Performance of NFConvertDAE.convert: time 0.005865/0.7361, allocations: 3.34 MB / 1.54 GB, free: 12.14 MB / 1.248 GB Notification: Performance of FrontEnd - DAE generated: time 7.575e-06/0.7361, allocations: 4 kB / 1.54 GB, free: 12.14 MB / 1.248 GB Notification: Performance of FrontEnd: time 2.134e-06/0.7361, allocations: 0 / 1.54 GB, free: 12.14 MB / 1.248 GB Notification: Performance of Transformations before backend: time 5.222e-05/0.7361, allocations: 0 / 1.54 GB, free: 12.14 MB / 1.248 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 351 * Number of variables: 351 Notification: Performance of Generate backend data structure: time 0.004573/0.7407, allocations: 2.261 MB / 1.542 GB, free: 9.836 MB / 1.248 GB Notification: Performance of prepare preOptimizeDAE: time 4.938e-05/0.7408, allocations: 8.031 kB / 1.542 GB, free: 9.828 MB / 1.248 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0002848/0.7411, allocations: 206.8 kB / 1.542 GB, free: 9.617 MB / 1.248 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.003146/0.7442, allocations: 0.51 MB / 1.543 GB, free: 9.105 MB / 1.248 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.002781/0.747, allocations: 1.25 MB / 1.544 GB, free: 7.805 MB / 1.248 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 9.737e-05/0.7471, allocations: 110.8 kB / 1.544 GB, free: 7.695 MB / 1.248 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002525/0.7473, allocations: 156 kB / 1.544 GB, free: 7.543 MB / 1.248 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002998/0.7503, allocations: 1.776 MB / 1.546 GB, free: 5.656 MB / 1.248 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.4e-05/0.7504, allocations: 7.891 kB / 1.546 GB, free: 5.648 MB / 1.248 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000151/0.7505, allocations: 63.94 kB / 1.546 GB, free: 5.586 MB / 1.248 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 7.129e-05/0.7506, allocations: 54.53 kB / 1.546 GB, free: 5.531 MB / 1.248 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002482/0.7531, allocations: 1.427 MB / 1.548 GB, free: 4.098 MB / 1.248 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 0.01107/0.7641, allocations: 7.258 MB / 1.555 GB, free: 12.46 MB / 1.264 GB Notification: Performance of preOpt comSubExp (simulation): time 0.001913/0.7661, allocations: 1.009 MB / 1.556 GB, free: 11.41 MB / 1.264 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001027/0.7671, allocations: 0.6677 MB / 1.556 GB, free: 10.73 MB / 1.264 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001978/0.7673, allocations: 33.14 kB / 1.556 GB, free: 10.7 MB / 1.264 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 5.584e-05/0.7673, allocations: 67.44 kB / 1.556 GB, free: 10.62 MB / 1.264 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.001564/0.7689, allocations: 346.9 kB / 1.557 GB, free: 10.29 MB / 1.264 GB Notification: Performance of pre-optimization done (n=106): time 4.288e-06/0.7689, allocations: 0 / 1.557 GB, free: 10.29 MB / 1.264 GB Notification: Performance of matching and sorting (n=112): time 0.008728/0.7776, allocations: 4.384 MB / 1.561 GB, free: 5.871 MB / 1.264 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001301/0.7778, allocations: 167.2 kB / 1.561 GB, free: 5.668 MB / 1.264 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001869/0.7796, allocations: 1.271 MB / 1.562 GB, free: 4.387 MB / 1.264 GB Notification: Performance of collectPreVariables (initialization): time 0.000147/0.7798, allocations: 49.7 kB / 1.562 GB, free: 4.332 MB / 1.264 GB Notification: Performance of collectInitialEqns (initialization): time 0.0007017/0.7805, allocations: 0.706 MB / 1.563 GB, free: 3.621 MB / 1.264 GB Notification: Performance of collectInitialBindings (initialization): time 0.0004588/0.7809, allocations: 424.4 kB / 1.563 GB, free: 3.203 MB / 1.264 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004276/0.7814, allocations: 263.5 kB / 1.564 GB, free: 2.938 MB / 1.264 GB Notification: Performance of setup shared object (initialization): time 0.0001905/0.7816, allocations: 353.9 kB / 1.564 GB, free: 2.586 MB / 1.264 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009186/0.7825, allocations: 0.5309 MB / 1.565 GB, free: 2.055 MB / 1.264 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001222/0.7837, allocations: 0.8518 MB / 1.565 GB, free: 1.082 MB / 1.264 GB Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol.dynBal.medium.p = vol.dynBal.p_start (sin.p = vol.dynBal.p_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol1.dynBal.medium.p = vol1.dynBal.p_start (sin.p = vol1.dynBal.p_start) Warning: It was not possible to determine if the initialization problem is consistent, because of not evaluable parameters/start values during compile time: vol2.dynBal.medium.p = vol2.dynBal.p_start (sin.p = vol2.dynBal.p_start) Notification: Performance of analyzeInitialSystem (initialization): time 0.6964/1.48, allocations: 4.564 MB / 1.57 GB, free: 281 MB / 1.264 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.348e-06/1.48, allocations: 2.969 kB / 1.57 GB, free: 281 MB / 1.264 GB Notification: Performance of matching and sorting (n=169) (initialization): time 0.002843/1.483, allocations: 1.623 MB / 1.571 GB, free: 280.6 MB / 1.264 GB Notification: Performance of prepare postOptimizeDAE: time 3.206e-05/1.483, allocations: 9.703 kB / 1.571 GB, free: 280.6 MB / 1.264 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.405e-05/1.483, allocations: 10.94 kB / 1.571 GB, free: 280.6 MB / 1.264 GB Notification: Performance of postOpt tearingSystem (initialization): time 4.801e-05/1.483, allocations: 14.94 kB / 1.571 GB, free: 280.6 MB / 1.264 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001359/1.484, allocations: 287.8 kB / 1.572 GB, free: 280.6 MB / 1.264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.675e-05/1.484, allocations: 24.86 kB / 1.572 GB, free: 280.6 MB / 1.264 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001278/1.486, allocations: 53 kB / 1.572 GB, free: 280.5 MB / 1.264 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001462/1.486, allocations: 65.17 kB / 1.572 GB, free: 280.5 MB / 1.264 GB Warning: The initial conditions are over specified. The following 3 initial equations are redundant, so they are removed from the initialization system: vol.dynBal.medium.p = vol.dynBal.p_start vol1.dynBal.medium.p = vol1.dynBal.p_start vol2.dynBal.medium.p = vol2.dynBal.p_start. Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 37 * Number of states: 0 () * Number of discrete variables: 6 (intMasVapOut.local_reset,intEntIn.local_reset,intEntOut.local_reset,intMasFloIn.local_reset,intMasFloOut.local_reset,intMasFloVapIn.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (169): * Single equations (assignments): 169 * 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 0.0008144/1.487, allocations: 430.1 kB / 1.572 GB, free: 280.3 MB / 1.264 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003605/1.487, allocations: 171.7 kB / 1.572 GB, free: 280.3 MB / 1.264 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002188/1.489, allocations: 1.286 MB / 1.574 GB, free: 279.7 MB / 1.264 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.673e-05/1.489, allocations: 12.12 kB / 1.574 GB, free: 279.7 MB / 1.264 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.867e-06/1.489, allocations: 5.844 kB / 1.574 GB, free: 279.7 MB / 1.264 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001522/1.491, allocations: 1.245 MB / 1.575 GB, free: 279 MB / 1.264 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.006351/1.497, allocations: 3.733 MB / 1.579 GB, free: 277.1 MB / 1.264 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.8e-05/1.497, allocations: 9.312 kB / 1.579 GB, free: 277.1 MB / 1.264 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001226/1.498, allocations: 247.7 kB / 1.579 GB, free: 277.1 MB / 1.264 GB Notification: Performance of postOpt tearingSystem (simulation): time 2.462e-05/1.498, allocations: 14 kB / 1.579 GB, free: 277.1 MB / 1.264 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 9.491e-05/1.499, allocations: 38.27 kB / 1.579 GB, free: 277 MB / 1.264 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.735e-05/1.499, allocations: 24.47 kB / 1.579 GB, free: 277 MB / 1.264 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.486e-05/1.499, allocations: 21.59 kB / 1.579 GB, free: 277 MB / 1.264 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003111/1.502, allocations: 2.128 MB / 1.581 GB, free: 275.9 MB / 1.264 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0008624/1.503, allocations: 289.9 kB / 1.581 GB, free: 275.8 MB / 1.264 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.000249/1.503, allocations: 36.83 kB / 1.581 GB, free: 275.8 MB / 1.264 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001158/1.504, allocations: 50.41 kB / 1.581 GB, free: 275.7 MB / 1.264 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001886/1.504, allocations: 104.4 kB / 1.581 GB, free: 275.7 MB / 1.264 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001019/1.504, allocations: 56.44 kB / 1.582 GB, free: 275.7 MB / 1.264 GB Notification: Performance of sorting global known variables: time 0.001417/1.506, allocations: 0.8494 MB / 1.582 GB, free: 275.4 MB / 1.264 GB Notification: Performance of sort global known variables: time 1e-07/1.506, allocations: 0 / 1.582 GB, free: 275.4 MB / 1.264 GB Notification: Performance of remove unused functions: time 0.001834/1.508, allocations: 431.8 kB / 1.583 GB, free: 275.3 MB / 1.264 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 44 * Number of states: 12 (vol.dynBal.medium.Xi[1],vol.dynBal.U,vol1.dynBal.medium.Xi[1],vol1.dynBal.U,vol2.dynBal.medium.Xi[1],vol2.dynBal.U,intMasFloVapIn.y,intMasFloOut.y,intMasFloIn.y,intEntOut.y,intEntIn.y,intMasVapOut.y) * 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 (115): * Single equations (assignments): 115 * 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 0.003565/1.511, allocations: 2.793 MB / 1.586 GB, free: 273.5 MB / 1.264 GB Notification: Performance of simCode: created initialization part: time 0.002786/1.514, allocations: 1.187 MB / 1.587 GB, free: 273.1 MB / 1.264 GB Notification: Performance of simCode: created event and clocks part: time 2.179e-05/1.514, allocations: 2.156 kB / 1.587 GB, free: 273.1 MB / 1.264 GB Notification: Performance of simCode: created simulation system equations: time 0.00101/1.515, allocations: 0.532 MB / 1.587 GB, free: 272.9 MB / 1.264 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004708/1.52, allocations: 0.9327 MB / 1.588 GB, free: 272.7 MB / 1.264 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.02089/1.54, allocations: 12.72 MB / 1.601 GB, free: 265.9 MB / 1.264 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0009223/1.541, allocations: 1.376 MB / 1.602 GB, free: 265.2 MB / 1.264 GB Notification: Performance of simCode: alias equations: time 0.001586/1.543, allocations: 386.1 kB / 1.602 GB, free: 265.1 MB / 1.264 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0008499/1.544, allocations: 0.6428 MB / 1.603 GB, free: 264.6 MB / 1.264 GB Notification: Performance of SimCode: time 1.242e-06/1.544, allocations: 0 / 1.603 GB, free: 264.6 MB / 1.264 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08306/1.627, allocations: 44.22 MB / 1.646 GB, free: 225.6 MB / 1.264 GB Notification: Performance of buildModelFMU: Generate platform static: time 19.36/20.98, allocations: 0 / 1.646 GB, free: 225.6 MB / 1.264 GB " [Timeout remaining time 279] (rm -f Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe ; mkfifo Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe >> ../files/Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance_res.mat --tempDir=temp_Buildings_11_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=400 --tolerance=1e-06 Buildings_11_Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance.fmu > Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_MixingVolumes_Validation_MoistureMixingConservationDynamicBalance.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.MixingVolumes.Validation.MoistureMixingConservationDynamicBalance.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: 27.709643302019686]