Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo): time 0.0008256/0.0008256, allocations: 88.33 kB / 20.67 MB, free: 3.875 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo): time 0.001194/0.001194, allocations: 160.9 kB / 23.95 MB, free: 0.5977 MB / 18.57 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo): time 0.9858/0.9858, allocations: 177 MB / 204.1 MB, free: 5.707 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo): time 0.27/0.27, allocations: 34.86 MB / 295.5 MB, free: 0.5273 MB / 266.7 MB " [Timeout remaining time 180] Using package ModelicaTest with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaTest trunk/package.mo) Using package Modelica with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica trunk/package.mo) Using package Complex with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex trunk/package.mo) Using package ModelicaServices with version trunk (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices trunk/package.mo) Running command: "" <> buildModelFMU(ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking,fileNamePrefix="ModelicaTest_trunk_ModelicaTest_Electrical_Machines_Examples_InductionMachines_IMC_DCBraking",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking,fileNamePrefix="ModelicaTest_trunk_ModelicaTest_Electrical_Machines_Examples_InductionMachines_IMC_DCBraking",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 1.703e-06/1.703e-06, allocations: 0 / 443.2 MB, free: 0.875 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.254e-05/2.425e-05, allocations: 6.219 kB / 443.2 MB, free: 0.8672 MB / 410.7 MB Notification: Performance of NFInst.instantiate(ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking): time 0.1766/0.1766, allocations: 7.379 MB / 450.5 MB, free: 39.55 MB / 410.7 MB Notification: Performance of NFInst.instExpressions: time 0.003001/0.1796, allocations: 2.576 MB / 453.1 MB, free: 37.79 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.0005354/0.1802, allocations: 51.88 kB / 453.2 MB, free: 37.77 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.001081/0.1813, allocations: 0.6085 MB / 453.8 MB, free: 37.47 MB / 410.7 MB Notification: Performance of NFTyping.typeBindings: time 0.0009801/0.1822, allocations: 0.6895 MB / 454.5 MB, free: 37.02 MB / 410.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.0003694/0.1826, allocations: 297.5 kB / 454.8 MB, free: 36.84 MB / 410.7 MB Notification: Performance of NFFlatten.flatten: time 0.001132/0.1837, allocations: 2.118 MB / 456.9 MB, free: 35.74 MB / 410.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0006679/0.1844, allocations: 0.7939 MB / 457.7 MB, free: 35.31 MB / 410.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.001141/0.1855, allocations: 1.331 MB / 459 MB, free: 34.7 MB / 410.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.000904/0.1865, allocations: 0.9101 MB / 459.9 MB, free: 34.39 MB / 410.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0001999/0.1867, allocations: 225.3 kB / 460.1 MB, free: 34.39 MB / 410.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0004198/0.1871, allocations: 314.3 kB / 460.4 MB, free: 34.37 MB / 410.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0003458/0.1874, allocations: 0.6643 MB / 461.1 MB, free: 33.98 MB / 410.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0004506/0.1879, allocations: 0.7109 MB / 461.8 MB, free: 33.64 MB / 410.7 MB Notification: Performance of NFConvertDAE.convert: time 0.001854/0.1897, allocations: 3.032 MB / 464.8 MB, free: 32.61 MB / 410.7 MB Notification: Performance of FrontEnd - DAE generated: time 7.274e-06/0.1897, allocations: 7.031 kB / 464.9 MB, free: 32.61 MB / 410.7 MB Notification: Performance of FrontEnd: time 2.435e-06/0.1897, allocations: 0 / 464.9 MB, free: 32.61 MB / 410.7 MB Notification: Performance of Transformations before backend: time 3.971e-05/0.1898, allocations: 4 kB / 464.9 MB, free: 32.61 MB / 410.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 392 * Number of variables: 392 Notification: Performance of Generate backend data structure: time 0.002351/0.1921, allocations: 2.096 MB / 467 MB, free: 31.37 MB / 410.7 MB Notification: Performance of prepare preOptimizeDAE: time 3.998e-05/0.1922, allocations: 9.5 kB / 467 MB, free: 31.37 MB / 410.7 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0001796/0.1923, allocations: 227.6 kB / 467.2 MB, free: 31.23 MB / 410.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.0003708/0.1927, allocations: 225.6 kB / 467.4 MB, free: 31.12 MB / 410.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001122/0.1938, allocations: 1.08 MB / 468.5 MB, free: 30.48 MB / 410.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 4.26e-05/0.1939, allocations: 116 kB / 468.6 MB, free: 30.43 MB / 410.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001338/0.194, allocations: 157.4 kB / 468.8 MB, free: 30.38 MB / 410.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001767/0.1958, allocations: 2.06 MB / 470.8 MB, free: 29.43 MB / 410.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 3.294e-05/0.1958, allocations: 7.266 kB / 470.8 MB, free: 29.43 MB / 410.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.953e-05/0.1959, allocations: 65.22 kB / 470.9 MB, free: 29.38 MB / 410.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.364e-05/0.196, allocations: 77.59 kB / 471 MB, free: 29.37 MB / 410.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001523/0.1975, allocations: 1.583 MB / 472.5 MB, free: 28.79 MB / 410.7 MB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.005159/0.2026, allocations: 5.694 MB / 478.2 MB, free: 25.48 MB / 410.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.0008488/0.2035, allocations: 0.7197 MB / 479 MB, free: 25.2 MB / 410.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005822/0.2041, allocations: 0.5433 MB / 479.5 MB, free: 25.02 MB / 410.7 MB Notification: Performance of preOpt evalFunc (simulation): time 0.0001442/0.2042, allocations: 34.19 kB / 479.5 MB, free: 25.02 MB / 410.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 2.458e-05/0.2042, allocations: 46.25 kB / 479.6 MB, free: 24.97 MB / 410.7 MB Notification: Performance of pre-optimization done (n=65): time 3.066e-06/0.2042, allocations: 0 / 479.6 MB, free: 24.97 MB / 410.7 MB Notification: Performance of matching and sorting (n=85): time 0.007942/0.2122, allocations: 5.473 MB / 485 MB, free: 23.18 MB / 410.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 2.602e-05/0.2122, allocations: 60.25 kB / 485.1 MB, free: 23.11 MB / 410.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.00136/0.2136, allocations: 1.181 MB / 486.3 MB, free: 22.62 MB / 410.7 MB Notification: Performance of collectPreVariables (initialization): time 5.457e-05/0.2136, allocations: 42.05 kB / 486.3 MB, free: 22.57 MB / 410.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0003407/0.214, allocations: 0.7969 MB / 487.1 MB, free: 21.95 MB / 410.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.000156/0.2141, allocations: 308.4 kB / 487.4 MB, free: 21.7 MB / 410.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000219/0.2143, allocations: 208.9 kB / 487.6 MB, free: 21.59 MB / 410.7 MB Notification: Performance of setup shared object (initialization): time 5.922e-05/0.2144, allocations: 347.5 kB / 488 MB, free: 21.27 MB / 410.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0006145/0.215, allocations: 0.5422 MB / 488.5 MB, free: 21.08 MB / 410.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.000764/0.2158, allocations: 0.881 MB / 489.4 MB, free: 20.47 MB / 410.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001363/0.2171, allocations: 1.525 MB / 490.9 MB, free: 19.53 MB / 410.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.734e-06/0.2171, allocations: 2.812 kB / 490.9 MB, free: 19.53 MB / 410.7 MB Notification: Performance of matching and sorting (n=142) (initialization): time 0.002603/0.2197, allocations: 2.045 MB / 493 MB, free: 18.71 MB / 410.7 MB Notification: Performance of prepare postOptimizeDAE: time 2.822e-05/0.2198, allocations: 10.84 kB / 493 MB, free: 18.71 MB / 410.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.736e-05/0.2198, allocations: 10.69 kB / 493 MB, free: 18.71 MB / 410.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.0009624/0.2208, allocations: 0.5491 MB / 493.5 MB, free: 18.54 MB / 410.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005176/0.2213, allocations: 249.9 kB / 493.8 MB, free: 18.5 MB / 410.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.005298/0.2266, allocations: 8.191 MB / 0.4902 GB, free: 12.12 MB / 410.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0009178/0.2275, allocations: 76.42 kB / 0.4903 GB, free: 12.1 MB / 410.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 7.438e-05/0.2276, allocations: 46.78 kB / 0.4903 GB, free: 12.09 MB / 410.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 48 * 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 (123): * Single equations (assignments): 117 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 2 * Torn equation systems: 4 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 2 systems {(2,100.0%), (2,100.0%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 4 systems {(1,1,100.0%), (4,8,87.5%), (1,3,100.0%), (2,1,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.000897/0.2285, allocations: 0.5198 MB / 0.4908 GB, free: 11.77 MB / 410.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002053/0.2287, allocations: 133.2 kB / 0.491 GB, free: 11.7 MB / 410.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002309/0.231, allocations: 1.754 MB / 0.4927 GB, free: 10.99 MB / 410.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 7.534e-06/0.231, allocations: 9.094 kB / 0.4927 GB, free: 10.99 MB / 410.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.979e-06/0.231, allocations: 4.125 kB / 0.4927 GB, free: 10.99 MB / 410.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.001e-05/0.231, allocations: 5.719 kB / 0.4927 GB, free: 10.99 MB / 410.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004958/0.236, allocations: 3.516 MB / 0.4961 GB, free: 9.484 MB / 410.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.724e-06/0.236, allocations: 2.422 kB / 0.4961 GB, free: 9.484 MB / 410.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003525/0.2363, allocations: 134.2 kB / 0.4963 GB, free: 9.465 MB / 410.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.001075/0.2374, allocations: 0.5917 MB / 0.4968 GB, free: 9.301 MB / 410.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.591e-05/0.2375, allocations: 29.69 kB / 0.4969 GB, free: 9.285 MB / 410.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.005148/0.2426, allocations: 7.332 MB / 0.504 GB, free: 4.059 MB / 410.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.887e-06/0.2426, allocations: 5.938 kB / 0.504 GB, free: 4.055 MB / 410.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002669/0.2453, allocations: 2.471 MB / 0.5064 GB, free: 2.504 MB / 410.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.0004563/0.2457, allocations: 239.5 kB / 0.5067 GB, free: 2.297 MB / 410.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001075/0.2458, allocations: 26.02 kB / 0.5067 GB, free: 2.273 MB / 410.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0003738/0.2462, allocations: 52.27 kB / 0.5067 GB, free: 2.238 MB / 410.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001464/0.2464, allocations: 75.45 kB / 0.5068 GB, free: 2.199 MB / 410.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 4.142e-05/0.2464, allocations: 30.2 kB / 0.5068 GB, free: 2.172 MB / 410.7 MB Notification: Performance of sorting global known variables: time 0.0008083/0.2472, allocations: 0.7932 MB / 0.5076 GB, free: 1.441 MB / 410.7 MB Notification: Performance of sort global known variables: time 1.7e-07/0.2472, allocations: 0 / 0.5076 GB, free: 1.441 MB / 410.7 MB Notification: Performance of remove unused functions: time 0.00109/0.2483, allocations: 372 kB / 0.508 GB, free: 1.078 MB / 410.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 8 * Number of states: 6 (imc.inertiaRotor.w,imc.idq_sr[1],imc.idq_sr[2],imc.idq_rr[1],imc.idq_rr[2],loadInertia.phi) * 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 (63): * Single equations (assignments): 59 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 1 * Torn equation systems: 3 * Mixed (continuous/discrete) equation systems: 0 Notification: Equation system details (not torn): * Constant Jacobian (size): 0 systems * Linear Jacobian (size,density): 1 system {(2,100.0%)} * Non-linear Jacobian (size): 0 systems * Without analytic Jacobian (size): 0 systems Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 3 systems {(6,14,69.4%), (1,1,100.0%), (1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.002694/0.251, allocations: 3.108 MB / 0.511 GB, free: 13.9 MB / 426.7 MB Notification: Performance of simCode: created initialization part: time 0.002246/0.2532, allocations: 1.923 MB / 0.5129 GB, free: 11.93 MB / 426.7 MB Notification: Performance of simCode: created event and clocks part: time 3.256e-06/0.2532, allocations: 0.8125 kB / 0.5129 GB, free: 11.93 MB / 426.7 MB Notification: Performance of simCode: created simulation system equations: time 0.001203/0.2544, allocations: 1.196 MB / 0.5141 GB, free: 10.7 MB / 426.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001114/0.2556, allocations: 384.8 kB / 0.5144 GB, free: 10.34 MB / 426.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01776/0.2733, allocations: 13.63 MB / 0.5277 GB, free: 12.16 MB / 442.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0008583/0.2742, allocations: 0.8749 MB / 0.5286 GB, free: 11.25 MB / 442.7 MB Notification: Performance of simCode: alias equations: time 0.0007211/0.2749, allocations: 267 kB / 0.5288 GB, free: 10.98 MB / 442.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0006283/0.2755, allocations: 0.5706 MB / 0.5294 GB, free: 10.41 MB / 442.7 MB Notification: Performance of SimCode: time 1.113e-06/0.2755, allocations: 0 / 0.5294 GB, free: 10.41 MB / 442.7 MB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.1835/0.459, allocations: 38.09 MB / 0.5666 GB, free: 4.699 MB / 474.7 MB Notification: Performance of buildModelFMU: Generate platform static: time 8.109/8.568, allocations: 11.31 kB / 0.5666 GB, free: 4.691 MB / 474.7 MB " [Timeout remaining time 651] (rm -f ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking.pipe ; mkfifo ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking.pipe ; head -c 1048576 < ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking.pipe >> ../files/ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking.sim & (cd run_OMSimulator && /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator --stripRoot --tempDir=temp_ModelicaTest_trunk_ModelicaTest_Electrical_Machines_Examples_InductionMachines_IMC_DCBraking_fmu --startTime=0 --stopTime=16.1 --stepSize=0.001 --timeout=50 --tolerance=1e-06 ../ModelicaTest_trunk_ModelicaTest_Electrical_Machines_Examples_InductionMachines_IMC_DCBraking.fmu) > ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking.pipe 2>&1) [Timeout 52.5] OMSimulator failed or timed out simulating it; the others still get to run it (rm -f ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking_fmpy.pipe ; mkfifo ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking_fmpy.pipe ; head -c 1048576 < ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking_fmpy.pipe >> /var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking_fmpy.sim & (cd run_fmpy && python3 -m fmpy simulate --output-file ../ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking_fmpy_res.csv --start-time 0 --stop-time 16.1 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.001 ../ModelicaTest_trunk_ModelicaTest_Electrical_Machines_Examples_InductionMachines_IMC_DCBraking.fmu) > ModelicaTest_trunk_ModelicaTest.Electrical.Machines.Examples.InductionMachines.IMC_DCBraking_fmpy.pipe 2>&1) [Timeout 52.5] fmpy timed out simulating the FMU [Calling sys.exit(0), Time elapsed: 11.05315254535526]