Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001535/0.001534, allocations: 106.2 kB / 16.4 MB, free: 6.488 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.00159/0.00159, allocations: 192.6 kB / 19.36 MB, free: 3.75 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.462/1.462, allocations: 222.9 MB / 245.1 MB, free: 15.02 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo): time 3.361/3.361, allocations: 489.1 MB / 0.7678 GB, free: 29.07 MB / 0.6231 GB " [Timeout remaining time 176] Using package Buildings with version 12.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.0.0-master/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: "" <> buildModelFMU(Buildings.HeatTransfer.Convection.Examples.Interior,fileNamePrefix="Buildings_latest_Buildings_HeatTransfer_Convection_Examples_Interior",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.HeatTransfer.Convection.Examples.Interior,fileNamePrefix="Buildings_latest_Buildings_HeatTransfer_Convection_Examples_Interior",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.002027/0.002027, allocations: 71.83 kB / 1.101 GB, free: 5.863 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.8159/0.8179, allocations: 163.8 MB / 1.261 GB, free: 7.105 MB / 0.9669 GB Notification: Performance of NFInst.instantiate(Buildings.HeatTransfer.Convection.Examples.Interior): time 0.005732/0.8237, allocations: 2.417 MB / 1.263 GB, free: 4.676 MB / 0.9669 GB Notification: Performance of NFInst.instExpressions: time 0.00274/0.8265, allocations: 0.9349 MB / 1.264 GB, free: 3.734 MB / 0.9669 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0003356/0.8269, allocations: 4 kB / 1.264 GB, free: 3.73 MB / 0.9669 GB Notification: Performance of NFTyping.typeComponents: time 0.0002049/0.8271, allocations: 43.58 kB / 1.264 GB, free: 3.688 MB / 0.9669 GB Notification: Performance of NFTyping.typeBindings: time 0.0007317/0.8279, allocations: 122.8 kB / 1.264 GB, free: 3.57 MB / 0.9669 GB Notification: Performance of NFTyping.typeClassSections: time 0.0007189/0.8286, allocations: 171.7 kB / 1.265 GB, free: 3.402 MB / 0.9669 GB Notification: Performance of NFFlatten.flatten: time 0.0009147/0.8295, allocations: 354.3 kB / 1.265 GB, free: 3.055 MB / 0.9669 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0004178/0.83, allocations: 115.9 kB / 1.265 GB, free: 2.938 MB / 0.9669 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003077/0.8303, allocations: 127.5 kB / 1.265 GB, free: 2.812 MB / 0.9669 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000389/0.8307, allocations: 139.3 kB / 1.265 GB, free: 2.676 MB / 0.9669 GB Notification: Performance of NFPackage.collectConstants: time 8.103e-05/0.8308, allocations: 20 kB / 1.265 GB, free: 2.656 MB / 0.9669 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0002232/0.8311, allocations: 47.95 kB / 1.265 GB, free: 2.609 MB / 0.9669 GB Notification: Performance of NFScalarize.scalarize: time 7.508e-05/0.8311, allocations: 55.78 kB / 1.265 GB, free: 2.555 MB / 0.9669 GB Notification: Performance of NFVerifyModel.verify: time 0.0002417/0.8314, allocations: 135.3 kB / 1.266 GB, free: 2.422 MB / 0.9669 GB Notification: Performance of NFConvertDAE.convert: time 0.0006554/0.8321, allocations: 301.5 kB / 1.266 GB, free: 2.129 MB / 0.9669 GB Notification: Performance of FrontEnd - DAE generated: time 5.3e-06/0.8321, allocations: 0 / 1.266 GB, free: 2.129 MB / 0.9669 GB Notification: Performance of FrontEnd: time 1.974e-06/0.8321, allocations: 0 / 1.266 GB, free: 2.129 MB / 0.9669 GB Notification: Performance of Transformations before backend: time 2.058e-05/0.8321, allocations: 0 / 1.266 GB, free: 2.129 MB / 0.9669 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 49 * Number of variables: 49 Notification: Performance of Generate backend data structure: time 0.001308/0.8334, allocations: 0.5725 MB / 1.266 GB, free: 1.508 MB / 0.9669 GB Notification: Performance of prepare preOptimizeDAE: time 5.473e-05/0.8335, allocations: 12.03 kB / 1.266 GB, free: 1.496 MB / 0.9669 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 9.077e-05/0.8336, allocations: 54.73 kB / 1.266 GB, free: 1.434 MB / 0.9669 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0001093/0.8337, allocations: 36.69 kB / 1.267 GB, free: 1.398 MB / 0.9669 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0006447/0.8344, allocations: 262.9 kB / 1.267 GB, free: 1.102 MB / 0.9669 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 2.932e-05/0.8344, allocations: 16.81 kB / 1.267 GB, free: 1.086 MB / 0.9669 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.586e-05/0.8345, allocations: 20.38 kB / 1.267 GB, free: 1.066 MB / 0.9669 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0005857/0.8351, allocations: 179.4 kB / 1.267 GB, free: 0.8828 MB / 0.9669 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.323e-05/0.8351, allocations: 0 / 1.267 GB, free: 0.8828 MB / 0.9669 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.989e-05/0.8352, allocations: 16 kB / 1.267 GB, free: 0.8672 MB / 0.9669 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.506e-05/0.8352, allocations: 7.984 kB / 1.267 GB, free: 0.8594 MB / 0.9669 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005121/0.8357, allocations: 129.6 kB / 1.267 GB, free: 0.7344 MB / 0.9669 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001485/0.8372, allocations: 0.8005 MB / 1.268 GB, free: 15.84 MB / 0.9825 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0005198/0.8378, allocations: 130.4 kB / 1.268 GB, free: 15.7 MB / 0.9825 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002427/0.838, allocations: 60.83 kB / 1.268 GB, free: 15.64 MB / 0.9825 GB Notification: Performance of preOpt evalFunc (simulation): time 3.782e-05/0.8381, allocations: 0 / 1.268 GB, free: 15.64 MB / 0.9825 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 4.295e-05/0.8381, allocations: 42.48 kB / 1.268 GB, free: 15.59 MB / 0.9825 GB Notification: Performance of pre-optimization done (n=13): time 1.944e-06/0.8382, allocations: 0 / 1.268 GB, free: 15.59 MB / 0.9825 GB Notification: Performance of matching and sorting (n=13): time 0.0007697/0.8389, allocations: 181.5 kB / 1.268 GB, free: 15.4 MB / 0.9825 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.138e-05/0.839, allocations: 51.41 kB / 1.268 GB, free: 15.34 MB / 0.9825 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003643/0.8394, allocations: 230.6 kB / 1.269 GB, free: 15.11 MB / 0.9825 GB Notification: Performance of collectPreVariables (initialization): time 3.67e-05/0.8394, allocations: 33.7 kB / 1.269 GB, free: 15.07 MB / 0.9825 GB Notification: Performance of collectInitialEqns (initialization): time 0.000161/0.8396, allocations: 164.4 kB / 1.269 GB, free: 14.91 MB / 0.9825 GB Notification: Performance of collectInitialBindings (initialization): time 7.115e-05/0.8397, allocations: 43.58 kB / 1.269 GB, free: 14.87 MB / 0.9825 GB Notification: Performance of simplifyInitialFunctions (initialization): time 9.14e-05/0.8398, allocations: 37.61 kB / 1.269 GB, free: 14.82 MB / 0.9825 GB Notification: Performance of setup shared object (initialization): time 0.0001958/0.84, allocations: 330.8 kB / 1.269 GB, free: 14.49 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002065/0.8402, allocations: 40.83 kB / 1.269 GB, free: 14.45 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001739/0.8404, allocations: 43.97 kB / 1.269 GB, free: 14.41 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000354/0.8408, allocations: 87.45 kB / 1.269 GB, free: 14.32 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 3.377e-06/0.8408, allocations: 4 kB / 1.269 GB, free: 14.32 MB / 0.9825 GB Notification: Performance of matching and sorting (n=13) (initialization): time 0.0005018/0.8413, allocations: 137.5 kB / 1.269 GB, free: 14.18 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 2.461e-05/0.8413, allocations: 9.812 kB / 1.269 GB, free: 14.17 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.134e-06/0.8413, allocations: 0 / 1.269 GB, free: 14.17 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.049e-05/0.8414, allocations: 7.938 kB / 1.269 GB, free: 14.16 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002145/0.8416, allocations: 31.91 kB / 1.269 GB, free: 14.13 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.304e-06/0.8416, allocations: 0 / 1.269 GB, free: 14.13 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001696/0.8418, allocations: 19.89 kB / 1.27 GB, free: 14.11 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.958e-05/0.8418, allocations: 8 kB / 1.27 GB, free: 14.1 MB / 0.9825 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002655/0.8421, allocations: 128.1 kB / 1.27 GB, free: 13.97 MB / 0.9825 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0001444/0.8423, allocations: 35.97 kB / 1.27 GB, free: 13.94 MB / 0.9825 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003178/0.8426, allocations: 91.94 kB / 1.27 GB, free: 13.85 MB / 0.9825 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.302e-06/0.8426, allocations: 0 / 1.27 GB, free: 13.85 MB / 0.9825 GB Notification: Performance of matching and sorting (n=13) (initialization_lambda0): time 0.0004487/0.8431, allocations: 145.5 kB / 1.27 GB, free: 13.7 MB / 0.9825 GB Notification: Performance of prepare postOptimizeDAE: time 1.085e-05/0.8431, allocations: 4 kB / 1.27 GB, free: 13.7 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 4.799e-06/0.8431, allocations: 3.938 kB / 1.27 GB, free: 13.69 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (initialization): time 3.606e-06/0.8431, allocations: 0 / 1.27 GB, free: 13.69 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001744/0.8433, allocations: 23.98 kB / 1.27 GB, free: 13.67 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.717e-06/0.8433, allocations: 0 / 1.27 GB, free: 13.67 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001542/0.8435, allocations: 16.09 kB / 1.27 GB, free: 13.65 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 9.167e-06/0.8435, allocations: 3.938 kB / 1.27 GB, free: 13.65 MB / 0.9825 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 (13): * Single equations (assignments): 13 * 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 0.0001592/0.8436, allocations: 192.2 kB / 1.27 GB, free: 13.45 MB / 0.9825 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 8.701e-05/0.8437, allocations: 23.8 kB / 1.27 GB, free: 13.43 MB / 0.9825 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0005629/0.8443, allocations: 159.4 kB / 1.27 GB, free: 13.26 MB / 0.9825 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 4.688e-06/0.8443, allocations: 0 / 1.27 GB, free: 13.26 MB / 0.9825 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 1.08e-05/0.8444, allocations: 4 kB / 1.27 GB, free: 13.25 MB / 0.9825 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 4.378e-06/0.8444, allocations: 0 / 1.27 GB, free: 13.25 MB / 0.9825 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0005542/0.8449, allocations: 273.5 kB / 1.271 GB, free: 12.94 MB / 0.9825 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.625e-06/0.8449, allocations: 0 / 1.271 GB, free: 12.94 MB / 0.9825 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.000189/0.8451, allocations: 27.98 kB / 1.271 GB, free: 12.91 MB / 0.9825 GB Notification: Performance of postOpt tearingSystem (simulation): time 7.634e-06/0.8452, allocations: 7.875 kB / 1.271 GB, free: 12.9 MB / 0.9825 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.21e-05/0.8452, allocations: 0 / 1.271 GB, free: 12.9 MB / 0.9825 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 2.945e-06/0.8452, allocations: 0 / 1.271 GB, free: 12.9 MB / 0.9825 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.863e-06/0.8452, allocations: 4 kB / 1.271 GB, free: 12.9 MB / 0.9825 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005316/0.8457, allocations: 235.4 kB / 1.271 GB, free: 12.65 MB / 0.9825 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001714/0.8459, allocations: 112.9 kB / 1.271 GB, free: 12.52 MB / 0.9825 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.222e-05/0.846, allocations: 4 kB / 1.271 GB, free: 12.52 MB / 0.9825 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001916/0.8462, allocations: 11.98 kB / 1.271 GB, free: 12.51 MB / 0.9825 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 6.137e-05/0.8462, allocations: 4 kB / 1.271 GB, free: 12.5 MB / 0.9825 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.266e-05/0.8463, allocations: 4 kB / 1.271 GB, free: 12.5 MB / 0.9825 GB Notification: Performance of sorting global known variables: time 0.0003323/0.8466, allocations: 178 kB / 1.271 GB, free: 12.33 MB / 0.9825 GB Notification: Performance of sort global known variables: time 2.11e-07/0.8466, allocations: 0 / 1.271 GB, free: 12.33 MB / 0.9825 GB Notification: Performance of remove unused functions: time 0.0005651/0.8472, allocations: 95.72 kB / 1.271 GB, free: 12.23 MB / 0.9825 GB Notification: Model statistics after passing the back-end for simulation: * 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 simulation (13): * Single equations (assignments): 13 * 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 0.0008759/0.8481, allocations: 0.7967 MB / 1.272 GB, free: 11.41 MB / 0.9825 GB Notification: Performance of simCode: created initialization part: time 0.0004864/0.8486, allocations: 147.8 kB / 1.272 GB, free: 11.27 MB / 0.9825 GB Notification: Performance of simCode: created event and clocks part: time 3.016e-06/0.8486, allocations: 0 / 1.272 GB, free: 11.27 MB / 0.9825 GB Notification: Performance of simCode: created simulation system equations: time 0.0001548/0.8488, allocations: 55.92 kB / 1.272 GB, free: 11.21 MB / 0.9825 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000499/0.8493, allocations: 64.53 kB / 1.272 GB, free: 11.16 MB / 0.9825 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003004/0.8523, allocations: 2.056 MB / 1.274 GB, free: 9.012 MB / 0.9825 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004329/0.8528, allocations: 0.7557 MB / 1.275 GB, free: 8.23 MB / 0.9825 GB Notification: Performance of simCode: alias equations: time 0.0001108/0.8529, allocations: 21.53 kB / 1.275 GB, free: 8.211 MB / 0.9825 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001154/0.853, allocations: 75.41 kB / 1.275 GB, free: 8.137 MB / 0.9825 GB Notification: Performance of SimCode: time 4.31e-07/0.853, allocations: 0 / 1.275 GB, free: 8.137 MB / 0.9825 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03057/0.8836, allocations: 4.761 MB / 1.28 GB, free: 3.504 MB / 0.9825 GB Notification: Performance of buildModelFMU: Generate platform static: time 8.393/9.277, allocations: 6.188 kB / 1.28 GB, free: 3.5 MB / 0.9825 GB " [Timeout remaining time 291] (rm -f Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.pipe ; mkfifo Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.pipe ; head -c 1048576 < Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.pipe >> ../files/Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior_res.mat --tempDir=temp_Buildings_latest_Buildings_HeatTransfer_Convection_Examples_Interior_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=800 --tolerance=1e-06 Buildings_latest_Buildings_HeatTransfer_Convection_Examples_Interior.fmu > Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.pipe 2>&1) [Timeout 840.0] diffSimulationResults("Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_HeatTransfer_Convection_Examples_Interior.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork_2/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.HeatTransfer.Convection.Examples.Interior.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: 15.606561452848837]