Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.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 0.0008795/0.0008795, allocations: 83.69 kB / 20.67 MB, free: 3.887 MB / 18.57 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 0.001095/0.001095, allocations: 170 kB / 23.95 MB, free: 0.6094 MB / 18.57 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 0.9219/0.9219, allocations: 177.1 MB / 204.3 MB, free: 5.719 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite master/package.mo): time 0.6263/0.6263, allocations: 88.06 MB / 348.7 MB, free: 14.37 MB / 330.7 MB " [Timeout remaining time 179] Using package ScalableTestSuite with version 2.2.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ScalableTestSuite 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(ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10,fileNamePrefix="ScalableTestSuite_ScalableTestSuite_Electrical_DistributionSystemDC_ScaledExperiments_DistributionSystemModelica_N_10_M_10",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10,fileNamePrefix="ScalableTestSuite_ScalableTestSuite_Electrical_DistributionSystemDC_ScaledExperiments_DistributionSystemModelica_N_10_M_10",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.754e-06/1.754e-06, allocations: 0 / 0.5231 GB, free: 3.992 MB / 442.8 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.023e-05/2.198e-05, allocations: 2.281 kB / 0.5231 GB, free: 3.988 MB / 442.8 MB Notification: Performance of NFInst.instantiate(ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10): time 0.00257/0.002592, allocations: 2.302 MB / 0.5253 GB, free: 1.672 MB / 442.8 MB Notification: Performance of NFInst.instExpressions: time 0.0007006/0.003292, allocations: 0.5609 MB / 0.5259 GB, free: 1.105 MB / 442.8 MB Notification: Performance of NFInst.updateImplicitVariability: time 8.293e-05/0.003375, allocations: 4 kB / 0.5259 GB, free: 1.102 MB / 442.8 MB Notification: Performance of NFTyping.typeComponents: time 0.0001197/0.003495, allocations: 35.64 kB / 0.5259 GB, free: 1.066 MB / 442.8 MB Notification: Performance of NFTyping.typeBindings: time 0.0001002/0.003595, allocations: 67.42 kB / 0.526 GB, free: 1 MB / 442.8 MB Notification: Performance of NFTyping.typeClassSections: time 0.0001494/0.003745, allocations: 63.83 kB / 0.526 GB, free: 0.9375 MB / 442.8 MB Notification: Performance of NFFlatten.flatten: time 0.006888/0.01063, allocations: 13.73 MB / 0.5394 GB, free: 3.148 MB / 458.8 MB Notification: Performance of NFFlatten.resolveConnections: time 0.002483/0.01312, allocations: 2.822 MB / 0.5422 GB, free: 240 kB / 458.8 MB Notification: Performance of NFEvalConstants.evaluate: time 0.009133/0.02225, allocations: 7.585 MB / 0.5496 GB, free: 8.637 MB / 474.8 MB Notification: Performance of NFSimplifyModel.simplify: time 0.006681/0.02893, allocations: 5.689 MB / 0.5552 GB, free: 2.938 MB / 474.8 MB Notification: Performance of NFPackage.collectConstants: time 0.001507/0.03044, allocations: 0.9258 MB / 0.5561 GB, free: 2.012 MB / 474.8 MB Notification: Performance of NFFlatten.collectFunctions: time 0.001549/0.03199, allocations: 0.9219 MB / 0.557 GB, free: 1.09 MB / 474.8 MB Notification: Performance of NFScalarize.scalarize: time 0.001695/0.03368, allocations: 2.527 MB / 0.5594 GB, free: 14.55 MB / 490.8 MB Notification: Performance of NFVerifyModel.verify: time 0.004212/0.03789, allocations: 4.015 MB / 0.5634 GB, free: 10.53 MB / 490.8 MB Notification: Performance of NFConvertDAE.convert: time 0.009556/0.04745, allocations: 15.16 MB / 0.5782 GB, free: 11.33 MB / 0.4949 GB Notification: Performance of FrontEnd - DAE generated: time 6.132e-06/0.04746, allocations: 0 / 0.5782 GB, free: 11.33 MB / 0.4949 GB Notification: Performance of FrontEnd: time 1.713e-06/0.04746, allocations: 0 / 0.5782 GB, free: 11.33 MB / 0.4949 GB Notification: Performance of Transformations before backend: time 0.0003064/0.04776, allocations: 4 kB / 0.5782 GB, free: 11.32 MB / 0.4949 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2099 * Number of variables: 2099 Notification: Performance of Generate backend data structure: time 0.01615/0.06392, allocations: 13.02 MB / 0.5909 GB, free: 14.21 MB / 0.5105 GB Notification: Performance of prepare preOptimizeDAE: time 5.049e-05/0.06397, allocations: 12.03 kB / 0.5909 GB, free: 14.2 MB / 0.5105 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.001134/0.0651, allocations: 1.203 MB / 0.5921 GB, free: 12.99 MB / 0.5105 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001222/0.06632, allocations: 1.081 MB / 0.5931 GB, free: 11.91 MB / 0.5105 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00657/0.07289, allocations: 5.901 MB / 0.5989 GB, free: 5.93 MB / 0.5105 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0002774/0.07317, allocations: 0.5984 MB / 0.5995 GB, free: 5.328 MB / 0.5105 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0007812/0.07395, allocations: 0.7777 MB / 0.6002 GB, free: 4.551 MB / 0.5105 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.01514/0.0891, allocations: 18.42 MB / 0.6182 GB, free: 0.7773 MB / 0.5262 GB Notification: Performance of preOpt findStateOrder (simulation): time 8.365e-05/0.08918, allocations: 192 / 0.6182 GB, free: 0.7773 MB / 0.5262 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0006625/0.08984, allocations: 372.1 kB / 0.6186 GB, free: 424 kB / 0.5262 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 8.499e-05/0.08993, allocations: 196 kB / 0.6188 GB, free: 228 kB / 0.5262 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01354/0.1035, allocations: 13.3 MB / 0.6317 GB, free: 2.898 MB / 0.5418 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.4596/0.5631, allocations: 36.94 MB / 0.6678 GB, free: 77.89 MB / 0.5419 GB Notification: Performance of preOpt comSubExp (simulation): time 0.006998/0.5701, allocations: 10.64 MB / 0.6782 GB, free: 67.28 MB / 0.5419 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.003532/0.5736, allocations: 4.849 MB / 0.6829 GB, free: 62.42 MB / 0.5419 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000147/0.5738, allocations: 60.94 kB / 0.683 GB, free: 62.36 MB / 0.5419 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 9.611e-05/0.5739, allocations: 153.5 kB / 0.6831 GB, free: 62.19 MB / 0.5419 GB Notification: Performance of pre-optimization done (n=630): time 8.266e-06/0.5739, allocations: 0 / 0.6831 GB, free: 62.19 MB / 0.5419 GB Notification: Performance of matching and sorting (n=630): time 0.01412/0.588, allocations: 15.29 MB / 0.6981 GB, free: 46.81 MB / 0.5419 GB Notification: Performance of inlineWhenForInitialization (initialization): time 4.945e-05/0.588, allocations: 116.3 kB / 0.6982 GB, free: 46.68 MB / 0.5419 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007711/0.5958, allocations: 8.891 MB / 0.7069 GB, free: 37.86 MB / 0.5419 GB Notification: Performance of collectPreVariables (initialization): time 0.0005486/0.5963, allocations: 169.7 kB / 0.707 GB, free: 37.69 MB / 0.5419 GB Notification: Performance of collectInitialEqns (initialization): time 0.001318/0.5976, allocations: 3.772 MB / 0.7107 GB, free: 34.29 MB / 0.5419 GB Notification: Performance of collectInitialBindings (initialization): time 0.0009999/0.5986, allocations: 2.211 MB / 0.7129 GB, free: 32.33 MB / 0.5419 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001291/0.5999, allocations: 1.399 MB / 0.7142 GB, free: 30.92 MB / 0.5419 GB Notification: Performance of setup shared object (initialization): time 2.537e-05/0.5999, allocations: 301.1 kB / 0.7145 GB, free: 30.62 MB / 0.5419 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.003896/0.6038, allocations: 5.101 MB / 0.7195 GB, free: 25.52 MB / 0.5419 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004143/0.608, allocations: 6.182 MB / 0.7255 GB, free: 19.03 MB / 0.5419 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.009126/0.6171, allocations: 10.56 MB / 0.7358 GB, free: 8.109 MB / 0.5419 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 2.857e-05/0.6171, allocations: 8 kB / 0.7359 GB, free: 8.102 MB / 0.5419 GB Notification: Performance of matching and sorting (n=941) (initialization): time 0.01669/0.6338, allocations: 16.72 MB / 0.7522 GB, free: 7.324 MB / 0.5575 GB Notification: Performance of prepare postOptimizeDAE: time 3.719e-05/0.6339, allocations: 19.98 kB / 0.7522 GB, free: 7.305 MB / 0.5575 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.392e-05/0.6339, allocations: 20 kB / 0.7522 GB, free: 7.285 MB / 0.5575 GB Notification: Tearing is skipped for strong component 1 because system size of 419 exceeds maximum system size for tearing of linear systems (200). To adjust the maximum system size for tearing use --maxSizeLinearTearing=. Notification: Performance of postOpt tearingSystem (initialization): time 5.105e-05/0.6339, allocations: 44 kB / 0.7523 GB, free: 7.242 MB / 0.5575 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.002067/0.636, allocations: 1.111 MB / 0.7533 GB, free: 6.129 MB / 0.5575 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 5.45e-05/0.6361, allocations: 55.84 kB / 0.7534 GB, free: 6.074 MB / 0.5575 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.004223/0.6403, allocations: 1.625 MB / 0.755 GB, free: 4.645 MB / 0.5575 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0003409/0.6406, allocations: 236 kB / 0.7552 GB, free: 4.414 MB / 0.5575 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 102 * 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 (523): * Single equations (assignments): 522 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 1 system {(419,0.6%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.003988/0.6446, allocations: 3.233 MB / 0.7584 GB, free: 1.184 MB / 0.5575 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0009993/0.6456, allocations: 0.7573 MB / 0.7591 GB, free: 432 kB / 0.5575 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.001036/0.6467, allocations: 1.119 MB / 0.7602 GB, free: 15.29 MB / 0.5731 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 3.006e-05/0.6467, allocations: 63.98 kB / 0.7603 GB, free: 15.23 MB / 0.5731 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 0.0001846/0.6469, allocations: 60.75 kB / 0.7603 GB, free: 15.17 MB / 0.5731 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.633e-05/0.6469, allocations: 31.89 kB / 0.7604 GB, free: 15.14 MB / 0.5731 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.007107/0.654, allocations: 7.016 MB / 0.7672 GB, free: 8.086 MB / 0.5731 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 1.143e-05/0.654, allocations: 0 / 0.7672 GB, free: 8.086 MB / 0.5731 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0008302/0.6548, allocations: 483.8 kB / 0.7677 GB, free: 7.613 MB / 0.5731 GB Notification: Tearing is skipped for strong component 2 because system size of 419 exceeds maximum system size for tearing of linear systems (200). To adjust the maximum system size for tearing use --maxSizeLinearTearing=. Notification: Performance of postOpt tearingSystem (simulation): time 1.773e-05/0.6549, allocations: 4 kB / 0.7677 GB, free: 7.609 MB / 0.5731 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001792/0.655, allocations: 96 kB / 0.7678 GB, free: 7.516 MB / 0.5731 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.058e-05/0.6551, allocations: 11.94 kB / 0.7678 GB, free: 7.504 MB / 0.5731 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.556e-06/0.6551, allocations: 7.688 kB / 0.7678 GB, free: 7.504 MB / 0.5731 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.01169/0.6667, allocations: 12.39 MB / 0.7799 GB, free: 10.99 MB / 0.5888 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001719/0.6685, allocations: 1.236 MB / 0.7811 GB, free: 9.746 MB / 0.5888 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0005534/0.669, allocations: 96 kB / 0.7812 GB, free: 9.652 MB / 0.5888 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003982/0.673, allocations: 1.966 MB / 0.7831 GB, free: 7.684 MB / 0.5888 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0009253/0.6739, allocations: 0.6751 MB / 0.7838 GB, free: 7.004 MB / 0.5888 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003029/0.6742, allocations: 188 kB / 0.7839 GB, free: 6.82 MB / 0.5888 GB Notification: Performance of sorting global known variables: time 0.005719/0.6799, allocations: 6.027 MB / 0.7898 GB, free: 0.7852 MB / 0.5888 GB Notification: Performance of sort global known variables: time 1.71e-07/0.6799, allocations: 0 / 0.7898 GB, free: 0.7852 MB / 0.5888 GB Notification: Performance of remove unused functions: time 0.004174/0.6841, allocations: 2.785 MB / 0.7925 GB, free: 13.99 MB / 0.6044 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 (212): * Single equations (assignments): 211 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 1 system {(419,0.6%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.01242/0.6965, allocations: 13.17 MB / 0.8054 GB, free: 0.6914 MB / 0.6044 GB Notification: Performance of simCode: created initialization part: time 0.01181/0.7083, allocations: 10.61 MB / 0.8158 GB, free: 6.016 MB / 0.62 GB Notification: Performance of simCode: created event and clocks part: time 1.402e-05/0.7084, allocations: 14 kB / 0.8158 GB, free: 6 MB / 0.62 GB Notification: Performance of simCode: created simulation system equations: time 0.004892/0.7133, allocations: 4.71 MB / 0.8204 GB, free: 1.262 MB / 0.62 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.005517/0.7188, allocations: 1.92 MB / 0.8223 GB, free: 15.35 MB / 0.6356 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.5211/1.24, allocations: 92.19 MB / 0.9123 GB, free: 230.4 MB / 0.6984 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00237/1.242, allocations: 5.506 MB / 0.9177 GB, free: 229.4 MB / 0.6984 GB Notification: Performance of simCode: alias equations: time 0.003942/1.246, allocations: 3.176 MB / 0.9208 GB, free: 229.1 MB / 0.6984 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001836/1.248, allocations: 2.951 MB / 0.9236 GB, free: 226.7 MB / 0.6984 GB Notification: Performance of SimCode: time 1.243e-06/1.248, allocations: 7.344 kB / 0.9237 GB, free: 226.7 MB / 0.6984 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1571/1.405, allocations: 192.8 MB / 1.112 GB, free: 46.61 MB / 0.6984 GB Notification: Performance of buildModelFMU: Generate platform static: time 14.36/15.77, allocations: 19.61 kB / 1.112 GB, free: 46.6 MB / 0.6984 GB " [Timeout remaining time 284] (rm -f ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.pipe ; mkfifo ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.pipe ; head -c 1048576 < ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.pipe >> ../files/ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10_res.mat --tempDir=temp_ScalableTestSuite_ScalableTestSuite_Electrical_DistributionSystemDC_ScaledExperiments_DistributionSystemModelica_N_10_M_10_fmu --startTime=0 --stopTime=1 --stepSize=0.001 --timeout=300 --tolerance=1e-06 ScalableTestSuite_ScalableTestSuite_Electrical_DistributionSystemDC_ScaledExperiments_DistributionSystemModelica_N_10_M_10.fmu > ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.pipe 2>&1) [Timeout 315.0] diffSimulationResults("ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/ReferenceFiles/ScalableTestSuite/ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ScalableTestSuite_ScalableTestSuite.Electrical.DistributionSystemDC.ScaledExperiments.DistributionSystemModelica_N_10_M_10.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: 19.766472605988383]