Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo", uses=false) [Timeout 180] "[:1:22-1:33:writable] Warning: Modelica only supports 32-bit signed integers! Transforming: 13743895347 into a real [:1:1-1:33:writable] Error: Class GC_set_max_heap_size not found in scope (looking for a function or record). Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.1.0+maint.om/package.mo): time 0.0004597/0.0004597, allocations: 0 / 0, free: 0 / 0 " [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 0.0004115/0.0004115, allocations: 0 / 0, free: 0 / 0 " [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 0.3628/0.3628, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/package.mo): time 0.05719/0.05719, allocations: 0 / 0, free: 0 / 0 " [Timeout remaining time 180] Using package ModelicaTest with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest 4.0.0+maint.om/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(ModelicaTest.MultiBody.Forces.Damper,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_Damper",fmuType="me_cs",version="3.0",platforms={"wasm"}) "" <> buildModelFMU(ModelicaTest.MultiBody.Forces.Damper,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_Damper",fmuType="me_cs",version="3.0",platforms={"wasm"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.955e-06/2.955e-06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - Absyn->SCode: time 1.712e-05/2.008e-05, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Forces.Damper): time 0.03324/0.03326, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instExpressions: time 0.01844/0.0517, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.updateImplicitVariability: time 0.003366/0.05506, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeComponents: time 0.02071/0.07577, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeBindings: time 0.01281/0.08857, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeClassSections: time 0.005264/0.09384, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.flatten: time 0.01372/0.1076, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.resolveConnections: time 0.01453/0.1221, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFEvalConstants.evaluate: time 0.01095/0.133, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFSimplifyModel.simplify: time 0.01141/0.1444, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFPackage.collectConstants: time 0.001699/0.1461, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.collectFunctions: time 0.004034/0.1502, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFScalarize.scalarize: time 0.006386/0.1566, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFVerifyModel.verify: time 0.006977/0.1635, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFConvertDAE.convert: time 0.0264/0.1899, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - DAE generated: time 0.001381/0.1913, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd: time 6.092e-06/0.1913, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Transformations before backend: time 8.59e-05/0.1914, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2520 * Number of variables: 2520 Notification: Performance of Generate backend data structure: time 0.04458/0.236, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare preOptimizeDAE: time 0.0003586/0.2364, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.007537/0.2439, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0407/0.2846, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evaluateParameters (simulation): time 0.02554/0.3101, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.001008/0.3111, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt expandDerOperator (simulation): time 0.003376/0.3145, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt clockPartitioning (simulation): time 0.115/0.4295, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt findStateOrder (simulation): time 0.0006086/0.4301, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002862/0.433, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.01505/0.448, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeEqualRHS (simulation): time 0.1032/0.5512, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.2393/0.7905, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt comSubExp (simulation): time 0.05593/0.8464, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt resolveLoops (simulation): time 0.009415/0.8558, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evalFunc (simulation): time 0.05152/0.9074, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001796/0.9075, allocations: 0 / 0, free: 0 / 0 Notification: Performance of pre-optimization done (n=257): time 0.0009184/0.9085, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=291): time 0.2233/1.132, allocations: 0 / 0, free: 0 / 0 Notification: Performance of inlineWhenForInitialization (initialization): time 0.0002838/1.132, allocations: 0 / 0, free: 0 / 0 Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02853/1.161, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectPreVariables (initialization): time 0.001218/1.162, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialEqns (initialization): time 0.0069/1.169, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialBindings (initialization): time 0.002508/1.171, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simplifyInitialFunctions (initialization): time 0.009458/1.181, allocations: 0 / 0, free: 0 / 0 Notification: Performance of setup shared object (initialization): time 0.0002163/1.181, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization): time 0.01372/1.195, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization): time 0.02193/1.217, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization): time 0.03421/1.251, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0004062/1.251, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=1195) (initialization): time 0.05795/1.309, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 0.0005154/1.31, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0005603/1.31, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 0.0008067/1.311, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01587/1.327, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.000911/1.328, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01394/1.342, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002426/1.344, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 895 * Number of states: 0 () * Number of discrete variables: 78 (force2.forceArrow.twoHeadedArrow,force2.forceArrow.headAtOrigin,force1.forceArrow.twoHeadedArrow,force1.forceArrow.headAtOrigin,force.forceArrow.twoHeadedArrow,force.forceArrow.headAtOrigin,fixedTranslation1.color[3],fixedTranslation1.color[2],fixedTranslation1.color[1],fixedTranslation.color[3],fixedTranslation.color[2],fixedTranslation.color[1],body2.sphereColor[3],body2.sphereColor[2],body2.sphereColor[1],force2.connectionLineColor[3],force2.connectionLineColor[2],force2.connectionLineColor[1],force2.forceColor[3],force2.forceColor[2],force2.forceColor[1],prismatic2.boxColor[3],prismatic2.boxColor[2],prismatic2.boxColor[1],damper2.color_b[3],damper2.color_b[2],damper2.color_b[1],damper2.color_a[3],damper2.color_a[2],damper2.color_a[1],body1.sphereColor[3],body1.sphereColor[2],body1.sphereColor[1],force1.connectionLineColor[3],force1.connectionLineColor[2],force1.connectionLineColor[1],force1.forceColor[3],force1.forceColor[2],force1.forceColor[1],prismatic1.boxColor[3],prismatic1.boxColor[2],prismatic1.boxColor[1],damper1.color_b[3],damper1.color_b[2],damper1.color_b[1],damper1.color_a[3],damper1.color_a[2],damper1.color_a[1],body.sphereColor[3],body.sphereColor[2],body.sphereColor[1],force.connectionLineColor[3],force.connectionLineColor[2],force.connectionLineColor[1],force.forceColor[3],force.forceColor[2],force.forceColor[1],prismatic.boxColor[3],prismatic.boxColor[2],prismatic.boxColor[1],damper.color_b[3],damper.color_b[2],damper.color_b[1],damper.color_a[3],damper.color_a[2],damper.color_a[1],world.gravityArrowColor[3],world.gravityArrowColor[2],world.gravityArrowColor[1],world.axisColor_x[3],world.axisColor_x[2],world.axisColor_x[1],world.groundColor[3],world.groundColor[2],world.groundColor[1],world.gravitySphereColor[3],world.gravitySphereColor[2],world.gravitySphereColor[1]) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (1171): * Single equations (assignments): 1168 * Array equations: 3 * 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 0.01635/1.361, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt lateInlineFunction (simulation): time 0.003812/1.364, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01781/1.382, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.872e-05/1.382, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt constantLinearSystem (simulation): time 2.803e-05/1.382, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.28e-05/1.382, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.06559/1.448, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (simulation): time 0.0001471/1.448, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.004614/1.453, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (simulation): time 0.0001741/1.453, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007994/1.454, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.0001488/1.454, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 0.0001142/1.454, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02357/1.477, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeConstants (simulation): time 0.008461/1.486, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.003465/1.489, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.005597/1.495, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt findZeroCrossings (simulation): time 0.002173/1.497, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0006887/1.498, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sorting global known variables: time 0.01859/1.516, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sort global known variables: time 0.0002687/1.517, allocations: 0 / 0, free: 0 / 0 Notification: Performance of remove unused functions: time 0.02556/1.542, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 142 * Number of states: 7 (body.frame_a.r_0[1],body.v_0[1],prismatic1.s,prismatic1.v,heatCapacitor.T,prismatic2.s,prismatic2.v) * 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 (275): * Single equations (assignments): 272 * Array equations: 3 * 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 0.02662/1.569, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created initialization part: time 0.02581/1.595, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created event and clocks part: time 4.314e-05/1.595, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created simulation system equations: time 0.005994/1.601, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.02255/1.623, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.2964/1.92, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: some other stuff during SimCode phase: time 0.02172/1.941, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: alias equations: time 0.01218/1.954, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01839/1.972, allocations: 0 / 0, free: 0 / 0 Notification: Performance of SimCode: time 0.006756/1.979, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU modelDescription.xml: time 0.07208/2.051, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU model kernel: time 0.03556/2.086, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU translated model: time 0.06778/2.154, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU component link: time 3.564e-05/2.154, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU precompile: time 3.156e-05/2.154, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU write (0.8 MB unzipped): time 0.0002982/2.155, allocations: 0 / 0, free: 0 / 0 Notification: Building FMU for platform 'wasm' (1/1). Notification: Finished FMU for platform 'wasm' (1/1). " [Timeout remaining time 658] simulate(ModelicaTest.MultiBody.Forces.Damper,startTime=0,stopTime=7,tolerance=1e-06,numberOfIntervals=5002,outputFormat="mat",variableFilter="time|body.frame_a.r_0.1.|body.v_0.1.|heatCapacitor.T|prismatic1.s|prismatic1.v|prismatic2.s|prismatic2.v",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper",simflags=" -alarm=240 -emit_protected -lv LOG_STATS -startTime=0 -stopTime=7 -tolerance=1e-06 -stepSize=0.00139944 -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_res.mat",resimulateExecutable="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_Damper.fmu") [Timeout 240] "" [Timeout remaining time 240] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/Damper/Damper.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches simulate(ModelicaTest.MultiBody.Forces.Damper,startTime=0,stopTime=7,tolerance=1e-06,numberOfIntervals=5002,outputFormat="mat",variableFilter="time|body.frame_a.r_0.1.|body.v_0.1.|heatCapacitor.T|prismatic1.s|prismatic1.v|prismatic2.s|prismatic2.v",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper",simflags=" -alarm=240 -emit_protected -lv LOG_STATS -startTime=0 -stopTime=7 -tolerance=1e-06 -stepSize=0.00139944 -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_me_res.mat -s fmi3:me:daskr",resimulateExecutable="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_Damper.fmu") [Timeout 240] "" [Timeout remaining time 240] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_me_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/Damper/Damper.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_me.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches simulate(ModelicaTest.MultiBody.Forces.Damper,startTime=0,stopTime=7,tolerance=1e-06,numberOfIntervals=5002,outputFormat="mat",variableFilter="time|body.frame_a.r_0.1.|body.v_0.1.|heatCapacitor.T|prismatic1.s|prismatic1.v|prismatic2.s|prismatic2.v",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper",simflags=" -alarm=240 -emit_protected -lv LOG_STATS -startTime=0 -stopTime=7 -tolerance=1e-06 -stepSize=0.00139944 -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_cs_res.mat -s fmi3:cs",resimulateExecutable="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_Damper.fmu") [Timeout 240] "" [Timeout remaining time 239] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_cs_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/Damper/Damper.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.Damper_cs.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 4.659720725030638]