Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.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 0.001207/0.001207, allocations: 99.75 kB / 18.95 MB, free: 2.832 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 0.001342/0.001342, allocations: 220.8 kB / 22.25 MB, free: 5.105 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 1.37/1.37, allocations: 230.6 MB / 256 MB, free: 7.812 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.x/package.mo): time 2.975/2.975, allocations: 0.49 GB / 0.7951 GB, free: 35.47 MB / 0.6231 GB " [Timeout remaining time 177] Using package Buildings with version 12.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.1-maint.12.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.Sensors.Examples.MoistAirEnthalpyFlowRate,fileNamePrefix="Buildings_12_Buildings_Fluid_Sensors_Examples_MoistAirEnthalpyFlowRate",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate,fileNamePrefix="Buildings_12_Buildings_Fluid_Sensors_Examples_MoistAirEnthalpyFlowRate",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 0.001894/0.001894, allocations: 70.52 kB / 1.154 GB, free: 25.47 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3096/0.3115, allocations: 176.1 MB / 1.326 GB, free: 1.512 MB / 1.014 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate): time 0.1886/0.5001, allocations: 158.6 MB / 1.481 GB, free: 2.367 MB / 1.17 GB Notification: Performance of NFInst.instExpressions: time 0.009389/0.5095, allocations: 7.212 MB / 1.488 GB, free: 11.13 MB / 1.186 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005017/0.51, allocations: 27.75 kB / 1.488 GB, free: 11.11 MB / 1.186 GB Notification: Performance of NFTyping.typeComponents: time 0.0006791/0.5106, allocations: 246.2 kB / 1.488 GB, free: 10.86 MB / 1.186 GB Notification: Performance of NFTyping.typeBindings: time 0.002911/0.5135, allocations: 1.217 MB / 1.489 GB, free: 9.641 MB / 1.186 GB Notification: Performance of NFTyping.typeClassSections: time 0.001832/0.5154, allocations: 0.7674 MB / 1.49 GB, free: 8.875 MB / 1.186 GB Notification: Performance of NFFlatten.flatten: time 0.001254/0.5166, allocations: 1.087 MB / 1.491 GB, free: 7.785 MB / 1.186 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0005302/0.5172, allocations: 333.6 kB / 1.491 GB, free: 7.445 MB / 1.186 GB Notification: Performance of NFEvalConstants.evaluate: time 0.002658/0.5198, allocations: 1.01 MB / 1.492 GB, free: 6.445 MB / 1.186 GB Notification: Performance of NFSimplifyModel.simplify: time 0.000669/0.5205, allocations: 446.4 kB / 1.493 GB, free: 6.008 MB / 1.186 GB Notification: Performance of NFPackage.collectConstants: time 6.997e-05/0.5206, allocations: 36 kB / 1.493 GB, free: 5.973 MB / 1.186 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00145/0.522, allocations: 0.791 MB / 1.494 GB, free: 5.18 MB / 1.186 GB Notification: Performance of NFScalarize.scalarize: time 0.0001818/0.5222, allocations: 167.5 kB / 1.494 GB, free: 5.016 MB / 1.186 GB Notification: Performance of NFVerifyModel.verify: time 0.0002408/0.5224, allocations: 207 kB / 1.494 GB, free: 4.812 MB / 1.186 GB Notification: Performance of NFConvertDAE.convert: time 0.001345/0.5238, allocations: 0.9148 MB / 1.495 GB, free: 3.895 MB / 1.186 GB Notification: Performance of FrontEnd - DAE generated: time 3.426e-06/0.5238, allocations: 0 / 1.495 GB, free: 3.895 MB / 1.186 GB Notification: Performance of FrontEnd: time 1.283e-06/0.5238, allocations: 0 / 1.495 GB, free: 3.895 MB / 1.186 GB Notification: Performance of Transformations before backend: time 7.444e-06/0.5238, allocations: 0 / 1.495 GB, free: 3.895 MB / 1.186 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 93 * Number of variables: 93 Notification: Performance of Generate backend data structure: time 0.00113/0.5249, allocations: 0.742 MB / 1.496 GB, free: 3.121 MB / 1.186 GB Notification: Performance of prepare preOptimizeDAE: time 5.135e-05/0.525, allocations: 16.03 kB / 1.496 GB, free: 3.105 MB / 1.186 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 8.871e-05/0.5251, allocations: 78.47 kB / 1.496 GB, free: 3.02 MB / 1.186 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0008793/0.5259, allocations: 155.5 kB / 1.496 GB, free: 2.867 MB / 1.186 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005949/0.5265, allocations: 336.4 kB / 1.496 GB, free: 2.512 MB / 1.186 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 3.055e-05/0.5266, allocations: 33 kB / 1.496 GB, free: 2.48 MB / 1.186 GB Notification: Performance of preOpt expandDerOperator (simulation): time 6.345e-05/0.5266, allocations: 39.98 kB / 1.496 GB, free: 2.441 MB / 1.186 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0007069/0.5273, allocations: 446.4 kB / 1.497 GB, free: 1.977 MB / 1.186 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.55e-05/0.5273, allocations: 4 kB / 1.497 GB, free: 1.973 MB / 1.186 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 4.074e-05/0.5274, allocations: 23.92 kB / 1.497 GB, free: 1.949 MB / 1.186 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.176e-05/0.5274, allocations: 8 kB / 1.497 GB, free: 1.941 MB / 1.186 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005816/0.528, allocations: 315.7 kB / 1.497 GB, free: 1.637 MB / 1.186 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001941/0.5299, allocations: 1.489 MB / 1.498 GB, free: 84 kB / 1.186 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0004137/0.5303, allocations: 235.5 kB / 1.499 GB, free: 15.84 MB / 1.201 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0002461/0.5306, allocations: 140.8 kB / 1.499 GB, free: 15.7 MB / 1.201 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004546/0.531, allocations: 75.91 kB / 1.499 GB, free: 15.63 MB / 1.201 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.459e-05/0.5311, allocations: 38.56 kB / 1.499 GB, free: 15.58 MB / 1.201 GB Notification: Performance of pre-optimization done (n=24): time 1.603e-06/0.5311, allocations: 0 / 1.499 GB, free: 15.58 MB / 1.201 GB Notification: Performance of matching and sorting (n=24): time 0.0009909/0.5321, allocations: 459.2 kB / 1.499 GB, free: 15.13 MB / 1.201 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.244e-05/0.5321, allocations: 55.41 kB / 1.499 GB, free: 15.06 MB / 1.201 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0004177/0.5325, allocations: 397.9 kB / 1.5 GB, free: 14.66 MB / 1.201 GB Notification: Performance of collectPreVariables (initialization): time 3.001e-05/0.5326, allocations: 29.7 kB / 1.5 GB, free: 14.63 MB / 1.201 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001755/0.5327, allocations: 236.5 kB / 1.5 GB, free: 14.39 MB / 1.201 GB Notification: Performance of collectInitialBindings (initialization): time 7.405e-05/0.5328, allocations: 87.28 kB / 1.5 GB, free: 14.31 MB / 1.201 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001005/0.5329, allocations: 65.62 kB / 1.5 GB, free: 14.24 MB / 1.201 GB Notification: Performance of setup shared object (initialization): time 0.0001559/0.5331, allocations: 350.7 kB / 1.5 GB, free: 13.89 MB / 1.201 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0002259/0.5333, allocations: 111.9 kB / 1.501 GB, free: 13.78 MB / 1.201 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003375/0.5336, allocations: 259.7 kB / 1.501 GB, free: 13.48 MB / 1.201 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0005106/0.5341, allocations: 312.4 kB / 1.501 GB, free: 13.15 MB / 1.201 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.955e-06/0.5341, allocations: 0 / 1.501 GB, free: 13.15 MB / 1.201 GB Notification: Performance of matching and sorting (n=31) (initialization): time 0.0006375/0.5348, allocations: 367.4 kB / 1.501 GB, free: 12.79 MB / 1.201 GB Notification: Performance of prepare postOptimizeDAE: time 1.643e-05/0.5348, allocations: 4 kB / 1.501 GB, free: 12.79 MB / 1.201 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 9.157e-06/0.5348, allocations: 4 kB / 1.501 GB, free: 12.78 MB / 1.201 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.651e-05/0.5348, allocations: 4 kB / 1.501 GB, free: 12.78 MB / 1.201 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0002743/0.5351, allocations: 59.91 kB / 1.502 GB, free: 12.72 MB / 1.201 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 9.057e-06/0.5351, allocations: 4 kB / 1.502 GB, free: 12.71 MB / 1.201 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0002327/0.5353, allocations: 39.72 kB / 1.502 GB, free: 12.68 MB / 1.201 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 3.317e-05/0.5354, allocations: 8 kB / 1.502 GB, free: 12.67 MB / 1.201 GB Notification: Model statistics after passing the back-end for initialization: * 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 initialization (31): * Single equations (assignments): 31 * 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 0.0001813/0.5355, allocations: 169.7 kB / 1.502 GB, free: 12.49 MB / 1.201 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 7.128e-05/0.5356, allocations: 51.75 kB / 1.502 GB, free: 12.44 MB / 1.201 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006996/0.5363, allocations: 369.1 kB / 1.502 GB, free: 12.07 MB / 1.201 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.567e-06/0.5363, allocations: 0 / 1.502 GB, free: 12.07 MB / 1.201 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.372e-06/0.5363, allocations: 4 kB / 1.502 GB, free: 12.07 MB / 1.201 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.777e-06/0.5363, allocations: 0 / 1.502 GB, free: 12.07 MB / 1.201 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.001439/0.5378, allocations: 0.8788 MB / 1.503 GB, free: 11.12 MB / 1.201 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 2.424e-06/0.5378, allocations: 3.938 kB / 1.503 GB, free: 11.11 MB / 1.201 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0002425/0.538, allocations: 51.91 kB / 1.503 GB, free: 11.06 MB / 1.201 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.136e-05/0.538, allocations: 7.938 kB / 1.503 GB, free: 11.05 MB / 1.201 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 2.073e-05/0.538, allocations: 8 kB / 1.503 GB, free: 11.05 MB / 1.201 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 4.088e-06/0.5381, allocations: 4 kB / 1.503 GB, free: 11.04 MB / 1.201 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.684e-06/0.5381, allocations: 0 / 1.503 GB, free: 11.04 MB / 1.201 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0009362/0.539, allocations: 0.6311 MB / 1.504 GB, free: 10.38 MB / 1.201 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0001598/0.5392, allocations: 75.59 kB / 1.504 GB, free: 10.3 MB / 1.201 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 4.956e-05/0.5392, allocations: 8 kB / 1.504 GB, free: 10.29 MB / 1.201 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000208/0.5394, allocations: 15.98 kB / 1.504 GB, free: 10.28 MB / 1.201 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 5.567e-05/0.5395, allocations: 19.91 kB / 1.504 GB, free: 10.26 MB / 1.201 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.848e-05/0.5395, allocations: 12 kB / 1.504 GB, free: 10.25 MB / 1.201 GB Notification: Performance of sorting global known variables: time 0.0002854/0.5398, allocations: 279.1 kB / 1.504 GB, free: 9.98 MB / 1.201 GB Notification: Performance of sort global known variables: time 8e-08/0.5398, allocations: 0 / 1.504 GB, free: 9.98 MB / 1.201 GB Notification: Performance of remove unused functions: time 0.0004462/0.5402, allocations: 115.9 kB / 1.504 GB, free: 9.867 MB / 1.201 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 1 (senH.h_out) * 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 (24): * Single equations (assignments): 24 * 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 0.001428/0.5416, allocations: 1.225 MB / 1.505 GB, free: 8.598 MB / 1.201 GB Notification: Performance of simCode: created initialization part: time 0.0005751/0.5422, allocations: 283.8 kB / 1.506 GB, free: 8.32 MB / 1.201 GB Notification: Performance of simCode: created event and clocks part: time 2.565e-06/0.5422, allocations: 0 / 1.506 GB, free: 8.32 MB / 1.201 GB Notification: Performance of simCode: created simulation system equations: time 0.0002649/0.5425, allocations: 139.8 kB / 1.506 GB, free: 8.184 MB / 1.201 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001035/0.5435, allocations: 223.8 kB / 1.506 GB, free: 7.965 MB / 1.201 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004925/0.5484, allocations: 3.807 MB / 1.51 GB, free: 3.996 MB / 1.201 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0002387/0.5487, allocations: 224 kB / 1.51 GB, free: 3.75 MB / 1.201 GB Notification: Performance of simCode: alias equations: time 0.0003288/0.549, allocations: 99.39 kB / 1.51 GB, free: 3.652 MB / 1.201 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002019/0.5492, allocations: 139.4 kB / 1.51 GB, free: 3.52 MB / 1.201 GB Notification: Performance of SimCode: time 8.82e-07/0.5492, allocations: 3.938 kB / 1.51 GB, free: 3.516 MB / 1.201 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.04502/0.5942, allocations: 13.17 MB / 1.523 GB, free: 6.695 MB / 1.217 GB Notification: Performance of buildModelFMU: Generate platform static: time 11.05/11.64, allocations: 14.11 kB / 1.523 GB, free: 6.684 MB / 1.217 GB " [Timeout remaining time 288] (rm -f Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.pipe ; mkfifo Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.pipe ; head -c 1048576 < Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.pipe >> ../files/Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.sim & python3 -m fmpy simulate --output-file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv --start-time 0 --stop-time 60 --timeout 400 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.024 Buildings_12_Buildings_Fluid_Sensors_Examples_MoistAirEnthalpyFlowRate.fmu > Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Fluid_Sensors_Examples_MoistAirEnthalpyFlowRate.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "Error: Could not read variable senMasFlo.m_flow in file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv. Warning: Get data of variable senMasFlo.m_flow from file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv failed! Error: Could not read variable senH_flow.H_flow in file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv. Warning: Get data of variable senH_flow.H_flow from file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv failed! Error: Could not read variable senHSen_flow.H_flow in file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv. Warning: Get data of variable senHSen_flow.H_flow from file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv failed! Error: Could not read variable senHLat_flow.H_flow in file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv. Warning: Get data of variable senHLat_flow.H_flow from file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv failed! Error: Could not read variable pro.y in file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv. Warning: Get data of variable pro.y from file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv failed! Error: Could not read variable add.y in file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv. Warning: Get data of variable add.y from file Buildings_12_Buildings.Fluid.Sensors.Examples.MoistAirEnthalpyFlowRate_res.csv failed! " [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 17.85469610602013]