Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass.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 0.000468/0.000468, 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 0.0004049/0.0004049, 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 0.3571/0.3571, 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 0.05524/0.05524, 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.LineForceWithMass,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_LineForceWithMass",fmuType="me_cs",version="3.0",platforms={"wasm"}) "" <> buildModelFMU(ModelicaTest.MultiBody.Forces.LineForceWithMass,fileNamePrefix="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_LineForceWithMass",fmuType="me_cs",version="3.0",platforms={"wasm"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.676e-06/2.676e-06, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - Absyn->SCode: time 1.571e-05/1.839e-05, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.Forces.LineForceWithMass): time 0.03105/0.03107, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.instExpressions: time 0.01934/0.05041, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFInst.updateImplicitVariability: time 0.003652/0.05406, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeComponents: time 0.01589/0.06995, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeBindings: time 0.01159/0.08154, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFTyping.typeClassSections: time 0.00523/0.08677, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.flatten: time 0.01556/0.1023, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.resolveConnections: time 0.01126/0.1136, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFEvalConstants.evaluate: time 0.009443/0.123, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFSimplifyModel.simplify: time 0.009562/0.1326, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFPackage.collectConstants: time 0.001369/0.134, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFFlatten.collectFunctions: time 0.005018/0.139, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFScalarize.scalarize: time 0.005791/0.1448, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFVerifyModel.verify: time 0.006226/0.151, allocations: 0 / 0, free: 0 / 0 Notification: Performance of NFConvertDAE.convert: time 0.02507/0.1761, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd - DAE generated: time 0.001771/0.1778, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FrontEnd: time 6.792e-06/0.1778, allocations: 0 / 0, free: 0 / 0 Notification: Performance of Transformations before backend: time 0.0001092/0.178, 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: 1941 * Number of variables: 1941 Notification: Performance of Generate backend data structure: time 0.05572/0.2337, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare preOptimizeDAE: time 0.0005596/0.2342, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.006913/0.2411, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt normalInlineFunction (simulation): time 0.3139/0.555, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evaluateParameters (simulation): time 0.02802/0.583, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0008144/0.5838, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt expandDerOperator (simulation): time 0.002845/0.5867, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt clockPartitioning (simulation): time 0.07279/0.6595, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt findStateOrder (simulation): time 0.0004622/0.6599, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002119/0.6621, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.01137/0.6734, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeEqualRHS (simulation): time 0.06984/0.7433, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.2186/0.9619, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt comSubExp (simulation): time 0.05763/1.02, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt resolveLoops (simulation): time 0.01341/1.033, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt evalFunc (simulation): time 0.07516/1.108, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0001687/1.108, allocations: 0 / 0, free: 0 / 0 Notification: Performance of pre-optimization done (n=227): time 0.0008124/1.109, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=264): time 0.2899/1.399, allocations: 0 / 0, free: 0 / 0 Notification: Performance of inlineWhenForInitialization (initialization): time 0.0003391/1.399, allocations: 0 / 0, free: 0 / 0 Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.02834/1.428, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectPreVariables (initialization): time 0.001933/1.43, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialEqns (initialization): time 0.006549/1.436, allocations: 0 / 0, free: 0 / 0 Notification: Performance of collectInitialBindings (initialization): time 0.003454/1.44, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simplifyInitialFunctions (initialization): time 0.009992/1.45, allocations: 0 / 0, free: 0 / 0 Notification: Performance of setup shared object (initialization): time 0.0002008/1.45, allocations: 0 / 0, free: 0 / 0 Notification: Performance of preBalanceInitialSystem (initialization): time 0.01312/1.463, allocations: 0 / 0, free: 0 / 0 Notification: Performance of partitionIndependentBlocks (initialization): time 0.02056/1.484, allocations: 0 / 0, free: 0 / 0 Notification: Performance of analyzeInitialSystem (initialization): time 0.03339/1.517, allocations: 0 / 0, free: 0 / 0 Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0003862/1.517, allocations: 0 / 0, free: 0 / 0 Notification: Performance of matching and sorting (n=963) (initialization): time 0.05416/1.571, allocations: 0 / 0, free: 0 / 0 Notification: Performance of prepare postOptimizeDAE: time 0.0004095/1.572, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0005035/1.572, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (initialization): time 0.005687/1.578, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.01373/1.592, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02613/1.618, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.01219/1.63, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002493/1.633, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 693 * Number of states: 0 () * Number of discrete variables: 57 (lineForceWithMass.lineShapeColor[3],lineForceWithMass.lineShapeColor[2],lineForceWithMass.lineShapeColor[1],lineForceWithMass.massColor[3],lineForceWithMass.massColor[2],lineForceWithMass.massColor[1],rod4.color[3],rod4.color[2],rod4.color[1],rod3.color[3],rod3.color[2],rod3.color[1],bodyBox2.color[3],bodyBox2.color[2],bodyBox2.color[1],bodyBox2.body.sphereColor[3],bodyBox2.body.sphereColor[2],bodyBox2.body.sphereColor[1],revolute2.cylinderColor[3],revolute2.cylinderColor[2],revolute2.cylinderColor[1],rod2.color[3],rod2.color[2],rod2.color[1],jointUPS.cylinderColor[3],jointUPS.cylinderColor[2],jointUPS.cylinderColor[1],jointUPS.sphereColor[3],jointUPS.sphereColor[2],jointUPS.sphereColor[1],jointUPS.axisColor[3],jointUPS.axisColor[2],jointUPS.axisColor[1],rod1.color[3],rod1.color[2],rod1.color[1],bodyBox1.color[3],bodyBox1.color[2],bodyBox1.color[1],bodyBox1.body.sphereColor[3],bodyBox1.body.sphereColor[2],bodyBox1.body.sphereColor[1],revolute1.cylinderColor[3],revolute1.cylinderColor[2],revolute1.cylinderColor[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 (913): * Single equations (assignments): 908 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,13,100.0%), (1,13,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.01421/1.647, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt lateInlineFunction (simulation): time 0.003968/1.651, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02517/1.676, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.228e-05/1.676, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt constantLinearSystem (simulation): time 3.934e-05/1.676, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifysemiLinear (simulation): time 5.716e-05/1.676, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0668/1.743, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyComplexFunction (simulation): time 3.702e-05/1.743, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00576/1.749, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt tearingSystem (simulation): time 0.0046/1.753, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.001166/1.754, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.02329/1.778, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.552e-06/1.778, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt symbolicJacobian (simulation): time 0.03622/1.814, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt removeConstants (simulation): time 0.006901/1.821, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.003512/1.824, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.006671/1.831, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt findZeroCrossings (simulation): time 0.004338/1.835, allocations: 0 / 0, free: 0 / 0 Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.001023/1.836, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sorting global known variables: time 0.01885/1.855, allocations: 0 / 0, free: 0 / 0 Notification: Performance of sort global known variables: time 0.0002974/1.856, allocations: 0 / 0, free: 0 / 0 Notification: Performance of remove unused functions: time 0.02632/1.882, allocations: 0 / 0, free: 0 / 0 Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 4 * Number of states: 4 (revolute1.phi,revolute1.w,revolute2.phi,revolute2.w) * 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 (224): * Single equations (assignments): 219 * Array equations: 3 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 2 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 2 systems {(1,10,100.0%), (1,10,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.04714/1.929, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created initialization part: time 0.03288/1.962, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created event and clocks part: time 1.757e-05/1.962, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created simulation system equations: time 0.01137/1.973, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01862/1.992, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.271/2.263, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: some other stuff during SimCode phase: time 0.02006/2.283, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: alias equations: time 0.01213/2.295, allocations: 0 / 0, free: 0 / 0 Notification: Performance of simCode: all other stuff during SimCode phase: time 0.01902/2.314, allocations: 0 / 0, free: 0 / 0 Notification: Performance of SimCode: time 0.005807/2.32, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU modelDescription.xml: time 0.06988/2.39, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU model kernel: time 0.03741/2.427, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU translated model: time 0.06847/2.496, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU component link: time 2.524e-05/2.496, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU precompile: time 2.623e-05/2.496, allocations: 0 / 0, free: 0 / 0 Notification: Performance of FMU write (0.7 MB unzipped): time 0.0003766/2.496, 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 657] simulate(ModelicaTest.MultiBody.Forces.LineForceWithMass,startTime=0,stopTime=3,tolerance=1e-06,numberOfIntervals=5002,outputFormat="mat",variableFilter="time|revolute1.phi|revolute1.w|revolute2.phi|revolute2.w",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass",simflags=" -alarm=240 -emit_protected -lv LOG_STATS -startTime=0 -stopTime=3 -tolerance=1e-06 -stepSize=0.00059976 -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_res.mat",resimulateExecutable="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_LineForceWithMass.fmu") [Timeout 240] "" [Timeout remaining time 240] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/LineForceWithMass/LineForceWithMass.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches simulate(ModelicaTest.MultiBody.Forces.LineForceWithMass,startTime=0,stopTime=3,tolerance=1e-06,numberOfIntervals=5002,outputFormat="mat",variableFilter="time|revolute1.phi|revolute1.w|revolute2.phi|revolute2.w",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass",simflags=" -alarm=240 -emit_protected -lv LOG_STATS -startTime=0 -stopTime=3 -tolerance=1e-06 -stepSize=0.00059976 -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_me_res.mat -s fmi3:me:daskr",resimulateExecutable="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_LineForceWithMass.fmu") [Timeout 240] "" [Timeout remaining time 240] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_me_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/LineForceWithMass/LineForceWithMass.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_me.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "" [Timeout remaining time 660] Reference file matches simulate(ModelicaTest.MultiBody.Forces.LineForceWithMass,startTime=0,stopTime=3,tolerance=1e-06,numberOfIntervals=5002,outputFormat="mat",variableFilter="time|revolute1.phi|revolute1.w|revolute2.phi|revolute2.w",fileNamePrefix="ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass",simflags=" -alarm=240 -emit_protected -lv LOG_STATS -startTime=0 -stopTime=3 -tolerance=1e-06 -stepSize=0.00059976 -r=ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_cs_res.mat -s fmi3:cs",resimulateExecutable="ModelicaTest_4_0_0_ModelicaTest_MultiBody_Forces_LineForceWithMass.fmu") [Timeout 240] "" [Timeout remaining time 239] diffSimulationResults("ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_cs_res.mat","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.0.0/ModelicaTest/MultiBody/Forces/LineForceWithMass/LineForceWithMass.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_4.0.0_ModelicaTest.MultiBody.Forces.LineForceWithMass_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: 4.903972008964047]