Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.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 0.001455/0.001455, allocations: 113.5 kB / 19.73 MB, free: 2.242 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 0.001562/0.001562, allocations: 217.9 kB / 23.04 MB, free: 5.078 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 1.325/1.325, allocations: 230.6 MB / 256.8 MB, free: 8.004 MB / 206.1 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 2.921/2.921, allocations: 0.5003 GB / 0.8061 GB, free: 26.77 MB / 0.6231 GB " [Timeout remaining time 177] Using package Buildings with version 13.0.0 (/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: "" <> buildModelFMU(Buildings.Fluid.Sensors.Examples.Pressure,fileNamePrefix="Buildings_latest_Buildings_Fluid_Sensors_Examples_Pressure",fmuType="cs",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Sensors.Examples.Pressure,fileNamePrefix="Buildings_latest_Buildings_Fluid_Sensors_Examples_Pressure",fmuType="cs",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 0.001847/0.001847, allocations: 67.69 kB / 1.171 GB, free: 19.72 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.304/0.3058, allocations: 179 MB / 1.345 GB, free: 424 kB / 1.029 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Sensors.Examples.Pressure): time 0.192/0.4978, allocations: 173.1 MB / 1.514 GB, free: 2.617 MB / 1.201 GB Notification: Performance of NFInst.instExpressions: time 0.008805/0.5066, allocations: 7.425 MB / 1.522 GB, free: 11.17 MB / 1.217 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0004716/0.5071, allocations: 19.81 kB / 1.522 GB, free: 11.15 MB / 1.217 GB Notification: Performance of NFTyping.typeComponents: time 0.0006458/0.5078, allocations: 222.6 kB / 1.522 GB, free: 10.93 MB / 1.217 GB Notification: Performance of NFTyping.typeBindings: time 0.001405/0.5092, allocations: 0.5966 MB / 1.522 GB, free: 10.33 MB / 1.217 GB Notification: Performance of NFTyping.typeClassSections: time 0.001177/0.5103, allocations: 450.4 kB / 1.523 GB, free: 9.895 MB / 1.217 GB Notification: Performance of NFFlatten.flatten: time 0.0009275/0.5113, allocations: 0.7245 MB / 1.524 GB, free: 9.168 MB / 1.217 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0003477/0.5116, allocations: 211.6 kB / 1.524 GB, free: 8.965 MB / 1.217 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001034/0.5127, allocations: 0.5449 MB / 1.524 GB, free: 8.418 MB / 1.217 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000307/0.513, allocations: 227 kB / 1.525 GB, free: 8.195 MB / 1.217 GB Notification: Performance of NFPackage.collectConstants: time 3.571e-05/0.513, allocations: 24 kB / 1.525 GB, free: 8.172 MB / 1.217 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001091/0.5141, allocations: 0.721 MB / 1.525 GB, free: 7.449 MB / 1.217 GB Notification: Performance of NFScalarize.scalarize: time 0.0001345/0.5142, allocations: 111.6 kB / 1.525 GB, free: 7.34 MB / 1.217 GB Notification: Performance of NFVerifyModel.verify: time 0.0001676/0.5144, allocations: 159.2 kB / 1.526 GB, free: 7.184 MB / 1.217 GB Notification: Performance of NFConvertDAE.convert: time 0.0007879/0.5152, allocations: 0.5761 MB / 1.526 GB, free: 6.605 MB / 1.217 GB Notification: Performance of FrontEnd - DAE generated: time 3.366e-06/0.5152, allocations: 0 / 1.526 GB, free: 6.605 MB / 1.217 GB Notification: Performance of FrontEnd: time 1.052e-06/0.5152, allocations: 0 / 1.526 GB, free: 6.605 MB / 1.217 GB Notification: Performance of Transformations before backend: time 6.523e-06/0.5152, allocations: 0 / 1.526 GB, free: 6.605 MB / 1.217 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 52 * Number of variables: 52 Notification: Performance of Generate backend data structure: time 0.0008933/0.5161, allocations: 0.5784 MB / 1.527 GB, free: 5.996 MB / 1.217 GB Notification: Performance of prepare preOptimizeDAE: time 3.907e-05/0.5161, allocations: 12.03 kB / 1.527 GB, free: 5.984 MB / 1.217 GB Notification: Performance of preOpt introduceOutputRealDerivatives (simulation): time 1.79e-05/0.5161, allocations: 8.375 kB / 1.527 GB, free: 5.977 MB / 1.217 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.959e-05/0.5162, allocations: 62.52 kB / 1.527 GB, free: 5.906 MB / 1.217 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003237/0.5165, allocations: 63.73 kB / 1.527 GB, free: 5.844 MB / 1.217 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0004665/0.517, allocations: 268 kB / 1.527 GB, free: 5.551 MB / 1.217 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.86e-05/0.517, allocations: 12.44 kB / 1.527 GB, free: 5.539 MB / 1.217 GB Notification: Performance of preOpt expandDerOperator (simulation): time 3.585e-05/0.517, allocations: 24 kB / 1.527 GB, free: 5.516 MB / 1.217 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.000478/0.5175, allocations: 304.5 kB / 1.527 GB, free: 5.176 MB / 1.217 GB Notification: Performance of preOpt findStateOrder (simulation): time 9.708e-06/0.5175, allocations: 0 / 1.527 GB, free: 5.176 MB / 1.217 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.172e-05/0.5176, allocations: 12 kB / 1.527 GB, free: 5.164 MB / 1.217 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.966e-06/0.5176, allocations: 8 kB / 1.527 GB, free: 5.156 MB / 1.217 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0003793/0.5179, allocations: 179.6 kB / 1.528 GB, free: 4.98 MB / 1.217 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001663/0.5196, allocations: 1.656 MB / 1.529 GB, free: 3.211 MB / 1.217 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0002402/0.5198, allocations: 90.5 kB / 1.529 GB, free: 3.113 MB / 1.217 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001551/0.52, allocations: 68.86 kB / 1.529 GB, free: 3.043 MB / 1.217 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0001905/0.5202, allocations: 31.97 kB / 1.529 GB, free: 3.012 MB / 1.217 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.32e-05/0.5202, allocations: 38.56 kB / 1.529 GB, free: 2.965 MB / 1.217 GB Notification: Performance of pre-optimization done (n=11): time 1.062e-06/0.5202, allocations: 0 / 1.529 GB, free: 2.965 MB / 1.217 GB Notification: Performance of matching and sorting (n=11): time 0.0006407/0.5209, allocations: 225.3 kB / 1.53 GB, free: 2.738 MB / 1.217 GB Notification: Performance of inlineWhenForInitialization (initialization): time 3.807e-05/0.5209, allocations: 55.41 kB / 1.53 GB, free: 2.672 MB / 1.217 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0003358/0.5212, allocations: 324.4 kB / 1.53 GB, free: 2.348 MB / 1.217 GB Notification: Performance of collectPreVariables (initialization): time 3.275e-05/0.5213, allocations: 37.69 kB / 1.53 GB, free: 2.305 MB / 1.217 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001431/0.5214, allocations: 200.1 kB / 1.53 GB, free: 2.105 MB / 1.217 GB Notification: Performance of collectInitialBindings (initialization): time 4.099e-05/0.5215, allocations: 39.62 kB / 1.53 GB, free: 2.066 MB / 1.217 GB Notification: Performance of simplifyInitialFunctions (initialization): time 8.054e-05/0.5215, allocations: 57.64 kB / 1.53 GB, free: 2.004 MB / 1.217 GB Notification: Performance of setup shared object (initialization): time 0.0001531/0.5217, allocations: 338.8 kB / 1.531 GB, free: 1.664 MB / 1.217 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000156/0.5218, allocations: 56.81 kB / 1.531 GB, free: 1.605 MB / 1.217 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0002641/0.5221, allocations: 204.4 kB / 1.531 GB, free: 1.348 MB / 1.217 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0003681/0.5225, allocations: 233.5 kB / 1.531 GB, free: 1.07 MB / 1.217 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.464e-06/0.5225, allocations: 0 / 1.531 GB, free: 1.07 MB / 1.217 GB Notification: Performance of matching and sorting (n=23) (initialization): time 0.0004722/0.5229, allocations: 261 kB / 1.531 GB, free: 0.8086 MB / 1.217 GB Notification: Performance of prepare postOptimizeDAE: time 1.516e-05/0.523, allocations: 9.656 kB / 1.531 GB, free: 0.8008 MB / 1.217 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.873e-06/0.523, allocations: 11.94 kB / 1.531 GB, free: 0.7891 MB / 1.217 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.412e-05/0.523, allocations: 4 kB / 1.531 GB, free: 0.7852 MB / 1.217 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001748/0.5232, allocations: 47.91 kB / 1.531 GB, free: 0.7383 MB / 1.217 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 7.835e-06/0.5232, allocations: 4 kB / 1.531 GB, free: 0.7344 MB / 1.217 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.000228/0.5234, allocations: 35.83 kB / 1.531 GB, free: 0.6992 MB / 1.217 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.011e-05/0.5234, allocations: 8 kB / 1.531 GB, free: 0.6914 MB / 1.217 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0002288/0.5237, allocations: 172.1 kB / 1.532 GB, free: 0.5195 MB / 1.217 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.0002516/0.5239, allocations: 197 kB / 1.532 GB, free: 272 kB / 1.217 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.0003726/0.5243, allocations: 229.5 kB / 1.532 GB, free: 15.99 MB / 1.232 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 1.543e-06/0.5243, allocations: 0 / 1.532 GB, free: 15.99 MB / 1.232 GB Notification: Performance of matching and sorting (n=23) (initialization_lambda0): time 0.0004521/0.5247, allocations: 253.2 kB / 1.532 GB, free: 15.74 MB / 1.232 GB Notification: Performance of prepare postOptimizeDAE: time 8.846e-06/0.5247, allocations: 4.406 kB / 1.532 GB, free: 15.73 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.721e-06/0.5247, allocations: 15.97 kB / 1.532 GB, free: 15.72 MB / 1.232 GB Notification: Performance of postOpt tearingSystem (initialization): time 6.502e-06/0.5248, allocations: 8 kB / 1.532 GB, free: 15.71 MB / 1.232 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0001624/0.5249, allocations: 43.92 kB / 1.532 GB, free: 15.67 MB / 1.232 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.35e-06/0.5249, allocations: 8 kB / 1.532 GB, free: 15.66 MB / 1.232 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002268/0.5251, allocations: 35.86 kB / 1.532 GB, free: 15.62 MB / 1.232 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 2.122e-05/0.5252, allocations: 12 kB / 1.532 GB, free: 15.61 MB / 1.232 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 16 * 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 (23): * Single equations (assignments): 23 * 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 0.0001199/0.5253, allocations: 200.1 kB / 1.533 GB, free: 15.41 MB / 1.232 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 5.344e-05/0.5253, allocations: 35.81 kB / 1.533 GB, free: 15.38 MB / 1.232 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0003801/0.5257, allocations: 168.3 kB / 1.533 GB, free: 15.2 MB / 1.232 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.184e-06/0.5257, allocations: 3.938 kB / 1.533 GB, free: 15.2 MB / 1.232 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.337e-06/0.5257, allocations: 0 / 1.533 GB, free: 15.2 MB / 1.232 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.554e-06/0.5257, allocations: 0 / 1.533 GB, free: 15.2 MB / 1.232 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0008936/0.5266, allocations: 0.5734 MB / 1.533 GB, free: 14.55 MB / 1.232 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.968e-06/0.5266, allocations: 4 kB / 1.533 GB, free: 14.55 MB / 1.232 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0001126/0.5267, allocations: 23.98 kB / 1.533 GB, free: 14.53 MB / 1.232 GB Notification: Performance of postOpt tearingSystem (simulation): time 4.468e-06/0.5267, allocations: 4.219 kB / 1.533 GB, free: 14.52 MB / 1.232 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.196e-05/0.5268, allocations: 8 kB / 1.533 GB, free: 14.52 MB / 1.232 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 5.49e-06/0.5268, allocations: 7.875 kB / 1.533 GB, free: 14.51 MB / 1.232 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.337e-06/0.5268, allocations: 4 kB / 1.533 GB, free: 14.5 MB / 1.232 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0003811/0.5271, allocations: 293.2 kB / 1.534 GB, free: 14.18 MB / 1.232 GB Notification: Performance of postOpt removeConstants (simulation): time 8.411e-05/0.5272, allocations: 47.78 kB / 1.534 GB, free: 14.13 MB / 1.232 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.558e-05/0.5273, allocations: 3.938 kB / 1.534 GB, free: 14.13 MB / 1.232 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001785/0.5274, allocations: 15.92 kB / 1.534 GB, free: 14.11 MB / 1.232 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.112e-05/0.5275, allocations: 15.98 kB / 1.534 GB, free: 14.1 MB / 1.232 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.816e-06/0.5275, allocations: 4 kB / 1.534 GB, free: 14.09 MB / 1.232 GB Notification: Performance of sorting global known variables: time 0.0002251/0.5277, allocations: 227 kB / 1.534 GB, free: 13.87 MB / 1.232 GB Notification: Performance of sort global known variables: time 7e-08/0.5277, allocations: 0 / 1.534 GB, free: 13.87 MB / 1.232 GB Notification: Performance of remove unused functions: time 0.000535/0.5283, allocations: 139.7 kB / 1.534 GB, free: 13.73 MB / 1.232 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * 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 (11): * Single equations (assignments): 11 * 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 0.0008322/0.5291, allocations: 0.8819 MB / 1.535 GB, free: 12.8 MB / 1.232 GB Notification: Performance of simCode: created initialization part: time 0.0005537/0.5296, allocations: 241 kB / 1.535 GB, free: 12.57 MB / 1.232 GB Notification: Performance of simCode: created event and clocks part: time 2.214e-06/0.5296, allocations: 3.938 kB / 1.535 GB, free: 12.57 MB / 1.232 GB Notification: Performance of simCode: created simulation system equations: time 0.0001515/0.5298, allocations: 68.02 kB / 1.535 GB, free: 12.5 MB / 1.232 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0007225/0.5305, allocations: 127.2 kB / 1.535 GB, free: 12.38 MB / 1.232 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003384/0.5339, allocations: 2.819 MB / 1.538 GB, free: 9.344 MB / 1.232 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.000411/0.5343, allocations: 0.7717 MB / 1.539 GB, free: 8.547 MB / 1.232 GB Notification: Performance of simCode: alias equations: time 0.0002493/0.5346, allocations: 86.89 kB / 1.539 GB, free: 8.465 MB / 1.232 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001352/0.5347, allocations: 91.41 kB / 1.539 GB, free: 8.375 MB / 1.232 GB Notification: Performance of SimCode: time 6.11e-07/0.5347, allocations: 0 / 1.539 GB, free: 8.375 MB / 1.232 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03042/0.5651, allocations: 8.186 MB / 1.547 GB, free: 412 kB / 1.232 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.63/11.2, allocations: 8.047 kB / 1.547 GB, free: 404 kB / 1.232 GB " [Timeout remaining time 289] (rm -f Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.pipe ; mkfifo Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.pipe ; head -c 1048576 < Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.pipe >> ../files/Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure_res.mat --tempDir=temp_Buildings_latest_Buildings_Fluid_Sensors_Examples_Pressure_fmu --startTime=0 --stopTime=1 --stepSize=0.0004 --timeout=800 --tolerance=1e-06 Buildings_latest_Buildings_Fluid_Sensors_Examples_Pressure.fmu > Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.pipe 2>&1) [Timeout 840.0] diffSimulationResults("Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure_res.mat","/mnt/ReferenceFiles/Buildings/csv/master/Buildings_Fluid_Sensors_Examples_Pressure.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_latest_Buildings.Fluid.Sensors.Examples.Pressure.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: 17.266046195989475]