Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.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 0.001695/0.001695, allocations: 107 kB / 16.45 MB, free: 6.02 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 0.001987/0.001987, allocations: 205.7 kB / 19.42 MB, free: 3.516 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 1.39/1.39, allocations: 230.6 MB / 252.8 MB, free: 8.945 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermofluidStream 1.2.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermofluidStream 1.2.0/package.mo): time 0.7341/0.7341, allocations: 94.55 MB / 403.4 MB, free: 10.55 MB / 318.1 MB " [Timeout remaining time 179] Using package ThermofluidStream with version 1.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ThermofluidStream 1.2.0/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(ThermofluidStream.Topology.Tests.TestSplitter,fileNamePrefix="ThermofluidStream_ThermofluidStream_Topology_Tests_TestSplitter",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ThermofluidStream.Topology.Tests.TestSplitter,fileNamePrefix="ThermofluidStream_ThermofluidStream_Topology_Tests_TestSplitter",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: ThermofluidStream 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: ThermofluidStream requested package Complex of version 4.0.0. Complex 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.00275/0.00275, allocations: 92.27 kB / 0.5499 GB, free: 38.69 MB / 446.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.1406/0.1433, allocations: 73.01 MB / 0.6212 GB, free: 1.992 MB / 462.1 MB Notification: Performance of NFInst.instantiate(ThermofluidStream.Topology.Tests.TestSplitter): time 0.5114/0.6547, allocations: 142.1 MB / 0.7599 GB, free: 2.258 MB / 0.5762 GB Notification: Performance of NFInst.instExpressions: time 0.003871/0.6586, allocations: 4.188 MB / 0.764 GB, free: 2.184 MB / 0.5762 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.000377/0.659, allocations: 25.81 kB / 0.764 GB, free: 2.184 MB / 0.5762 GB Notification: Performance of NFTyping.typeComponents: time 0.0006197/0.6596, allocations: 154.3 kB / 0.7642 GB, free: 2.18 MB / 0.5762 GB Notification: Performance of NFTyping.typeBindings: time 0.0005614/0.6601, allocations: 219 kB / 0.7644 GB, free: 2.172 MB / 0.5762 GB Notification: Performance of NFTyping.typeClassSections: time 0.0003538/0.6605, allocations: 127.5 kB / 0.7645 GB, free: 2.168 MB / 0.5762 GB Notification: Performance of NFFlatten.flatten: time 0.0003828/0.6609, allocations: 402.8 kB / 0.7649 GB, free: 2.168 MB / 0.5762 GB Notification: Performance of NFFlatten.resolveConnections: time 0.0001736/0.6611, allocations: 81.5 kB / 0.765 GB, free: 2.156 MB / 0.5762 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003487/0.6614, allocations: 202.7 kB / 0.7651 GB, free: 2.156 MB / 0.5762 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0002179/0.6616, allocations: 180.4 kB / 0.7653 GB, free: 2.152 MB / 0.5762 GB Notification: Performance of NFPackage.collectConstants: time 3.036e-05/0.6617, allocations: 17.88 kB / 0.7653 GB, free: 2.152 MB / 0.5762 GB Notification: Performance of NFFlatten.collectFunctions: time 0.0004539/0.6621, allocations: 273.6 kB / 0.7656 GB, free: 2.145 MB / 0.5762 GB Notification: Performance of NFScalarize.scalarize: time 5.637e-05/0.6622, allocations: 45.59 kB / 0.7656 GB, free: 2.145 MB / 0.5762 GB Notification: Performance of NFVerifyModel.verify: time 0.0001259/0.6623, allocations: 148 kB / 0.7658 GB, free: 2.141 MB / 0.5762 GB Notification: Performance of NFConvertDAE.convert: time 0.0005382/0.6628, allocations: 388.2 kB / 0.7662 GB, free: 2.113 MB / 0.5762 GB Notification: Performance of FrontEnd - DAE generated: time 4.598e-06/0.6628, allocations: 1.062 kB / 0.7662 GB, free: 2.113 MB / 0.5762 GB Notification: Performance of FrontEnd: time 1.423e-06/0.6628, allocations: 0 / 0.7662 GB, free: 2.113 MB / 0.5762 GB Notification: Performance of Transformations before backend: time 1.317e-05/0.6628, allocations: 0 / 0.7662 GB, free: 2.113 MB / 0.5762 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 45 * Number of variables: 45 Notification: Performance of Generate backend data structure: time 0.001102/0.6639, allocations: 0.6171 MB / 0.7668 GB, free: 17.63 MB / 0.5919 GB Notification: Performance of prepare preOptimizeDAE: time 4.591e-05/0.664, allocations: 9.219 kB / 0.7668 GB, free: 17.63 MB / 0.5919 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 5.887e-05/0.6641, allocations: 56.88 kB / 0.7668 GB, free: 17.59 MB / 0.5919 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 6.566e-05/0.6641, allocations: 38.42 kB / 0.7669 GB, free: 17.57 MB / 0.5919 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0005543/0.6647, allocations: 383.2 kB / 0.7672 GB, free: 17.33 MB / 0.5919 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.979e-05/0.6647, allocations: 14.53 kB / 0.7672 GB, free: 17.33 MB / 0.5919 GB Notification: Performance of preOpt expandDerOperator (simulation): time 4.665e-05/0.6647, allocations: 24.56 kB / 0.7673 GB, free: 17.32 MB / 0.5919 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0003575/0.6651, allocations: 232.4 kB / 0.7675 GB, free: 17.27 MB / 0.5919 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.008e-05/0.6651, allocations: 0 / 0.7675 GB, free: 17.27 MB / 0.5919 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 2.169e-05/0.6651, allocations: 6.047 kB / 0.7675 GB, free: 17.27 MB / 0.5919 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.456e-06/0.6651, allocations: 5.875 kB / 0.7675 GB, free: 17.27 MB / 0.5919 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0002315/0.6654, allocations: 131.9 kB / 0.7676 GB, free: 17.27 MB / 0.5919 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.001123/0.6665, allocations: 0.7604 MB / 0.7684 GB, free: 16.88 MB / 0.5919 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0003571/0.6668, allocations: 122.3 kB / 0.7685 GB, free: 16.85 MB / 0.5919 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001173/0.667, allocations: 61.58 kB / 0.7685 GB, free: 16.84 MB / 0.5919 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0002413/0.6672, allocations: 248.5 kB / 0.7688 GB, free: 16.56 MB / 0.5919 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.519e-05/0.6672, allocations: 35.66 kB / 0.7688 GB, free: 16.52 MB / 0.5919 GB Notification: Performance of pre-optimization done (n=15): time 1.483e-06/0.6672, allocations: 0 / 0.7688 GB, free: 16.52 MB / 0.5919 GB Notification: Performance of matching and sorting (n=16): time 0.001801/0.669, allocations: 0.9229 MB / 0.7697 GB, free: 15.9 MB / 0.5919 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.564e-05/0.6691, allocations: 53.5 kB / 0.7698 GB, free: 15.84 MB / 0.5919 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.000436/0.6695, allocations: 340.6 kB / 0.7701 GB, free: 15.72 MB / 0.5919 GB Notification: Performance of collectPreVariables (initialization): time 2.21e-05/0.6695, allocations: 29.55 kB / 0.7701 GB, free: 15.69 MB / 0.5919 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001194/0.6697, allocations: 170.2 kB / 0.7703 GB, free: 15.6 MB / 0.5919 GB Notification: Performance of collectInitialBindings (initialization): time 5.072e-05/0.6697, allocations: 58.81 kB / 0.7703 GB, free: 15.56 MB / 0.5919 GB Notification: Performance of simplifyInitialFunctions (initialization): time 6.444e-05/0.6698, allocations: 34.33 kB / 0.7704 GB, free: 15.54 MB / 0.5919 GB Notification: Performance of setup shared object (initialization): time 0.0001648/0.6699, allocations: 348.2 kB / 0.7707 GB, free: 15.23 MB / 0.5919 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001034/0.67, allocations: 51.48 kB / 0.7707 GB, free: 15.23 MB / 0.5919 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0001125/0.6702, allocations: 64.89 kB / 0.7708 GB, free: 15.21 MB / 0.5919 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.000219/0.6704, allocations: 131.4 kB / 0.7709 GB, free: 15.19 MB / 0.5919 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.844e-06/0.6704, allocations: 0.7188 kB / 0.7709 GB, free: 15.19 MB / 0.5919 GB Notification: Performance of matching and sorting (n=19) (initialization): time 0.0005304/0.6709, allocations: 264.9 kB / 0.7712 GB, free: 15.12 MB / 0.5919 GB Notification: Performance of prepare postOptimizeDAE: time 2.364e-05/0.6709, allocations: 9.406 kB / 0.7712 GB, free: 15.12 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.033e-06/0.6709, allocations: 0.6562 kB / 0.7712 GB, free: 15.12 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0003598/0.6713, allocations: 94.38 kB / 0.7713 GB, free: 15.11 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 9.012e-05/0.6714, allocations: 15.53 kB / 0.7713 GB, free: 15.11 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002148/0.6735, allocations: 1.957 MB / 0.7732 GB, free: 13.74 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0001155/0.6736, allocations: 8.75 kB / 0.7732 GB, free: 13.74 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 1.547e-05/0.6737, allocations: 3.688 kB / 0.7732 GB, free: 13.74 MB / 0.5919 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 2 * 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 (11): * Single equations (assignments): 10 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(3,6,77.8%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.0001588/0.6738, allocations: 153.4 kB / 0.7734 GB, free: 13.62 MB / 0.5919 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 6.029e-05/0.6739, allocations: 30.88 kB / 0.7734 GB, free: 13.6 MB / 0.5919 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0004763/0.6744, allocations: 282.3 kB / 0.7737 GB, free: 13.52 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.446e-06/0.6744, allocations: 2.406 kB / 0.7737 GB, free: 13.52 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.519e-06/0.6744, allocations: 13.2 kB / 0.7737 GB, free: 13.51 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.457e-06/0.6744, allocations: 2.953 kB / 0.7737 GB, free: 13.51 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0007843/0.6752, allocations: 0.611 MB / 0.7743 GB, free: 13.17 MB / 0.5919 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.797e-06/0.6752, allocations: 4.469 kB / 0.7743 GB, free: 13.17 MB / 0.5919 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 3.64e-05/0.6752, allocations: 6.75 kB / 0.7743 GB, free: 13.17 MB / 0.5919 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0002777/0.6755, allocations: 99.67 kB / 0.7744 GB, free: 13.15 MB / 0.5919 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 1.66e-05/0.6755, allocations: 8.922 kB / 0.7744 GB, free: 13.15 MB / 0.5919 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.002153/0.6776, allocations: 1.958 MB / 0.7763 GB, free: 11.78 MB / 0.5919 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.913e-06/0.6776, allocations: 0 / 0.7763 GB, free: 11.78 MB / 0.5919 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0005607/0.6782, allocations: 401.9 kB / 0.7767 GB, free: 11.59 MB / 0.5919 GB Notification: Performance of postOpt removeConstants (simulation): time 9.268e-05/0.6783, allocations: 111.5 kB / 0.7768 GB, free: 11.47 MB / 0.5919 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 3.642e-05/0.6783, allocations: 10.25 kB / 0.7768 GB, free: 11.47 MB / 0.5919 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0001228/0.6785, allocations: 1.25 kB / 0.7768 GB, free: 11.47 MB / 0.5919 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 4.374e-05/0.6785, allocations: 19.33 kB / 0.7768 GB, free: 11.47 MB / 0.5919 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 1.184e-05/0.6785, allocations: 7.766 kB / 0.7768 GB, free: 11.47 MB / 0.5919 GB Notification: Performance of sorting global known variables: time 0.0002506/0.6788, allocations: 251.4 kB / 0.7771 GB, free: 11.39 MB / 0.5919 GB Notification: Performance of sort global known variables: time 6e-08/0.6788, allocations: 0 / 0.7771 GB, free: 11.39 MB / 0.5919 GB Notification: Performance of remove unused functions: time 0.0004032/0.6792, allocations: 77.62 kB / 0.7771 GB, free: 11.38 MB / 0.5919 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 3 (sink.inlet.m_flow,sink1.inlet.m_flow,sink2.inlet.m_flow) * 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 (5): * Single equations (assignments): 4 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(3,6,77.8%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0009856/0.6801, allocations: 1.007 MB / 0.7781 GB, free: 10.64 MB / 0.5919 GB Notification: Performance of simCode: created initialization part: time 0.0006154/0.6808, allocations: 291 kB / 0.7784 GB, free: 10.52 MB / 0.5919 GB Notification: Performance of simCode: created event and clocks part: time 2.485e-06/0.6808, allocations: 1.375 kB / 0.7784 GB, free: 10.52 MB / 0.5919 GB Notification: Performance of simCode: created simulation system equations: time 0.0003944/0.6812, allocations: 242.9 kB / 0.7786 GB, free: 10.39 MB / 0.5919 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.000628/0.6818, allocations: 98.64 kB / 0.7787 GB, free: 10.38 MB / 0.5919 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.003822/0.6856, allocations: 3.117 MB / 0.7818 GB, free: 8.777 MB / 0.5919 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0004245/0.686, allocations: 0.779 MB / 0.7825 GB, free: 8.074 MB / 0.5919 GB Notification: Performance of simCode: alias equations: time 0.0001323/0.6862, allocations: 37.08 kB / 0.7826 GB, free: 8.066 MB / 0.5919 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0001109/0.6863, allocations: 96.09 kB / 0.7827 GB, free: 8.059 MB / 0.5919 GB Notification: Performance of SimCode: time 6.32e-07/0.6863, allocations: 0 / 0.7827 GB, free: 8.059 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.03798/0.7243, allocations: 9.039 MB / 0.7915 GB, free: 7.055 MB / 0.5919 GB Notification: Performance of buildModelFMU: Generate platform static: time 10.64/11.36, allocations: 16.73 kB / 0.7915 GB, free: 7.043 MB / 0.5919 GB " [Timeout remaining time 649] (rm -f ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.pipe ; mkfifo ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.pipe ; head -c 1048576 < ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.pipe >> ../files/ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.sim & python3 -m fmpy simulate --output-file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv --start-time 0 --stop-time 1 --timeout 1200 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.001 ThermofluidStream_ThermofluidStream_Topology_Tests_TestSplitter.fmu > ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.pipe 2>&1) [Timeout 1260.0] diffSimulationResults("ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv","/mnt/ReferenceFiles/ThermofluidStream-main-regression/ReferenceData/ThermofluidStream.Topology.Tests.TestSplitter_ref.mat","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "Error: Could not read variable Time in file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv. Warning: Get data of variable Time from file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv failed! Error: Could not read variable splitterN.inlet.m_flow in file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv. Warning: Get data of variable splitterN.inlet.m_flow from file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv failed! Error: Could not read variable splitterN.outlets[2].m_flow in file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv. Warning: Get data of variable splitterN.outlets[2].m_flow from file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv failed! Error: Could not read variable splitterN.outlets[3].m_flow in file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv. Warning: Get data of variable splitterN.outlets[3].m_flow from file ThermofluidStream_ThermofluidStream.Topology.Tests.TestSplitter_res.csv failed! " [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 14.836925173003692]