Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.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 0.001714/0.001714, allocations: 116.7 kB / 20.44 MB, free: 1.324 MB / 14.72 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 0.00203/0.00203, allocations: 205 kB / 23.74 MB, free: 4.551 MB / 14.72 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 1.586/1.586, allocations: 230.5 MB / 257.4 MB, free: 8.016 MB / 206.1 MB " [Timeout remaining time 178] 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 0.2345/0.2345, allocations: 46.93 MB / 360.8 MB, free: 4.188 MB / 286.1 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.MultiBody.FourbarVariants.JointUSP,fileNamePrefix="ModelicaTest_trunk_ModelicaTest_MultiBody_FourbarVariants_JointUSP",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(ModelicaTest.MultiBody.FourbarVariants.JointUSP,fileNamePrefix="ModelicaTest_trunk_ModelicaTest_MultiBody_FourbarVariants_JointUSP",fmuType="me",version="2.0",platforms={"static"}) [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 0.002258/0.002258, allocations: 83.88 kB / 0.4962 GB, free: 7.785 MB / 366.1 MB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3936/0.3958, allocations: 66.09 MB / 0.5607 GB, free: 4.312 MB / 398.1 MB Notification: Performance of NFInst.instantiate(ModelicaTest.MultiBody.FourbarVariants.JointUSP): time 0.01885/0.4147, allocations: 16.07 MB / 0.5764 GB, free: 4.164 MB / 414.1 MB Notification: Performance of NFInst.instExpressions: time 0.01341/0.4281, allocations: 5.514 MB / 0.5818 GB, free: 14.64 MB / 430.1 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.004566/0.4327, allocations: 127.4 kB / 0.5819 GB, free: 14.51 MB / 430.1 MB Notification: Performance of NFTyping.typeComponents: time 0.0109/0.4436, allocations: 5.202 MB / 0.587 GB, free: 9.293 MB / 430.1 MB Notification: Performance of NFTyping.typeBindings: time 0.008506/0.4521, allocations: 2.669 MB / 0.5896 GB, free: 6.613 MB / 430.1 MB Notification: Performance of NFTyping.typeClassSections: time 0.003699/0.4558, allocations: 1.392 MB / 0.591 GB, free: 5.219 MB / 430.1 MB Notification: Performance of NFFlatten.flatten: time 0.01322/0.469, allocations: 8.263 MB / 0.599 GB, free: 12.94 MB / 446.1 MB Notification: Performance of NFFlatten.resolveConnections: time 0.008556/0.4775, allocations: 5.205 MB / 0.6041 GB, free: 7.645 MB / 446.1 MB Notification: Performance of NFEvalConstants.evaluate: time 0.007205/0.4847, allocations: 2.82 MB / 0.6069 GB, free: 4.816 MB / 446.1 MB Notification: Performance of NFSimplifyModel.simplify: time 0.008585/0.4933, allocations: 4.016 MB / 0.6108 GB, free: 0.7891 MB / 446.1 MB Notification: Performance of NFPackage.collectConstants: time 0.002861/0.4962, allocations: 0.6367 MB / 0.6114 GB, free: 156 kB / 446.1 MB Notification: Performance of NFFlatten.collectFunctions: time 0.005714/0.5019, allocations: 1.826 MB / 0.6132 GB, free: 14.32 MB / 462.1 MB Notification: Performance of NFScalarize.scalarize: time 0.005818/0.5077, allocations: 3.448 MB / 0.6166 GB, free: 10.86 MB / 462.1 MB Notification: Performance of NFVerifyModel.verify: time 0.008438/0.5162, allocations: 3.78 MB / 0.6203 GB, free: 7.062 MB / 462.1 MB Notification: Performance of NFConvertDAE.convert: time 0.01865/0.5348, allocations: 12.19 MB / 0.6322 GB, free: 10.82 MB / 478.1 MB Notification: Performance of FrontEnd - DAE generated: time 7.574e-06/0.5348, allocations: 0 / 0.6322 GB, free: 10.82 MB / 478.1 MB Notification: Performance of FrontEnd: time 2.925e-06/0.5348, allocations: 0 / 0.6322 GB, free: 10.82 MB / 478.1 MB Notification: Performance of Transformations before backend: time 0.0004284/0.5352, allocations: 0 / 0.6322 GB, free: 10.82 MB / 478.1 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 2166 * Number of variables: 2166 Notification: Performance of Generate backend data structure: time 0.02682/0.5621, allocations: 8.298 MB / 0.6403 GB, free: 2.449 MB / 478.1 MB Notification: Performance of prepare preOptimizeDAE: time 5.562e-05/0.5621, allocations: 8.031 kB / 0.6403 GB, free: 2.441 MB / 478.1 MB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.003791/0.5659, allocations: 1.152 MB / 0.6414 GB, free: 1.277 MB / 478.1 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.05682/0.6227, allocations: 8.402 MB / 0.6496 GB, free: 8.859 MB / 494.1 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.02284/0.6456, allocations: 5.8 MB / 0.6553 GB, free: 2.973 MB / 494.1 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000619/0.6462, allocations: 390 kB / 0.6557 GB, free: 2.59 MB / 494.1 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.002986/0.6492, allocations: 0.5114 MB / 0.6562 GB, free: 2.078 MB / 494.1 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.05431/0.7035, allocations: 15.41 MB / 0.6712 GB, free: 1.77 MB / 0.4981 GB Notification: Performance of preOpt findStateOrder (simulation): time 0.0004403/0.7039, allocations: 67.47 kB / 0.6713 GB, free: 1.703 MB / 0.4981 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.002197/0.7061, allocations: 231.8 kB / 0.6715 GB, free: 1.477 MB / 0.4981 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 0.006803/0.7129, allocations: 2.552 MB / 0.674 GB, free: 14.92 MB / 0.5137 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.04276/0.7557, allocations: 12.89 MB / 0.6866 GB, free: 2 MB / 0.5137 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.4166/1.172, allocations: 56.82 MB / 0.7421 GB, free: 118.4 MB / 0.5606 GB Notification: Performance of preOpt comSubExp (simulation): time 0.01509/1.187, allocations: 5.646 MB / 0.7476 GB, free: 118.3 MB / 0.5606 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.003509/1.191, allocations: 3.115 MB / 0.7506 GB, free: 118.2 MB / 0.5606 GB Notification: Performance of preOpt evalFunc (simulation): time 0.01423/1.205, allocations: 9.737 MB / 0.7601 GB, free: 114.8 MB / 0.5606 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 3.722e-05/1.205, allocations: 63.88 kB / 0.7602 GB, free: 114.7 MB / 0.5606 GB Notification: Performance of pre-optimization done (n=245): time 4.739e-06/1.205, allocations: 0 / 0.7602 GB, free: 114.7 MB / 0.5606 GB Notification: Performance of matching and sorting (n=338): time 0.1185/1.324, allocations: 39.45 MB / 0.7987 GB, free: 79.95 MB / 0.5606 GB Notification: Performance of inlineWhenForInitialization (initialization): time 9.256e-05/1.324, allocations: 239.1 kB / 0.7989 GB, free: 79.66 MB / 0.5606 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007653/1.331, allocations: 5.743 MB / 0.8045 GB, free: 74.04 MB / 0.5606 GB Notification: Performance of collectPreVariables (initialization): time 0.0008927/1.332, allocations: 79.02 kB / 0.8046 GB, free: 73.96 MB / 0.5606 GB Notification: Performance of collectInitialEqns (initialization): time 0.002271/1.335, allocations: 4.618 MB / 0.8091 GB, free: 69.68 MB / 0.5606 GB Notification: Performance of collectInitialBindings (initialization): time 0.00141/1.336, allocations: 1.291 MB / 0.8104 GB, free: 68.4 MB / 0.5606 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001929/1.338, allocations: 1.636 MB / 0.812 GB, free: 66.75 MB / 0.5606 GB Notification: Performance of setup shared object (initialization): time 4.633e-05/1.338, allocations: 305.1 kB / 0.8123 GB, free: 66.45 MB / 0.5606 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.004457/1.342, allocations: 3.776 MB / 0.816 GB, free: 62.67 MB / 0.5606 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.006193/1.349, allocations: 8.305 MB / 0.8241 GB, free: 52.2 MB / 0.5606 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.01309/1.362, allocations: 13.01 MB / 0.8368 GB, free: 37.12 MB / 0.5606 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 0.0001148/1.362, allocations: 44 kB / 0.8368 GB, free: 37.08 MB / 0.5606 GB Notification: Performance of matching and sorting (n=1067) (initialization): time 0.02986/1.392, allocations: 15.45 MB / 0.8519 GB, free: 21.58 MB / 0.5606 GB Notification: Performance of prepare postOptimizeDAE: time 9.832e-05/1.392, allocations: 72 kB / 0.852 GB, free: 21.51 MB / 0.5606 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 0.0001528/1.392, allocations: 156 kB / 0.8521 GB, free: 21.36 MB / 0.5606 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.01235/1.404, allocations: 4.097 MB / 0.8561 GB, free: 17.26 MB / 0.5606 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00596/1.41, allocations: 1.801 MB / 0.8579 GB, free: 15.45 MB / 0.5606 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.02758/1.438, allocations: 20.84 MB / 0.8782 GB, free: 10.5 MB / 0.5762 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.007588/1.445, allocations: 0.4955 MB / 0.8787 GB, free: 10.01 MB / 0.5762 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.002813/1.448, allocations: 468 kB / 0.8792 GB, free: 9.551 MB / 0.5762 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 717 * Number of states: 0 () * Number of discrete variables: 46 (jointUSP.prismatic.positiveBranch,body2.color[3],body2.color[2],body2.color[1],body2.body.sphereColor[3],body2.body.sphereColor[2],body2.body.sphereColor[1],jointUSP.rod1Color[3],jointUSP.rod1Color[2],jointUSP.rod1Color[1],jointUSP.cylinderColor[3],jointUSP.cylinderColor[2],jointUSP.cylinderColor[1],jointUSP.sphereColor[3],jointUSP.sphereColor[2],jointUSP.sphereColor[1],ground_rod.color[3],ground_rod.color[2],ground_rod.color[1],body3.color[3],body3.color[2],body3.color[1],body3.body.sphereColor[3],body3.body.sphereColor[2],body3.body.sphereColor[1],body1.color[3],body1.color[2],body1.color[1],body1.body.sphereColor[3],body1.body.sphereColor[2],body1.body.sphereColor[1],revolute.cylinderColor[3],revolute.cylinderColor[2],revolute.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 (966): * Single equations (assignments): 962 * Array equations: 3 * 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 {(1,77,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of prepare postOptimizeDAE: time 0.008164/1.456, allocations: 3.106 MB / 0.8822 GB, free: 6.434 MB / 0.5762 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001502/1.458, allocations: 0.5549 MB / 0.8827 GB, free: 5.875 MB / 0.5762 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.02184/1.48, allocations: 9.556 MB / 0.8921 GB, free: 12.25 MB / 0.5919 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 6.703e-05/1.48, allocations: 36 kB / 0.8921 GB, free: 12.22 MB / 0.5919 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.422e-05/1.48, allocations: 16 kB / 0.8921 GB, free: 12.2 MB / 0.5919 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 7.664e-05/1.48, allocations: 15.94 kB / 0.8921 GB, free: 12.19 MB / 0.5919 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.04544/1.525, allocations: 19.54 MB / 0.9112 GB, free: 8.496 MB / 0.6075 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 4.08e-05/1.525, allocations: 4 kB / 0.9112 GB, free: 8.492 MB / 0.6075 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.002461/1.528, allocations: 0.4958 MB / 0.9117 GB, free: 7.996 MB / 0.6075 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.01294/1.541, allocations: 3.651 MB / 0.9153 GB, free: 4.336 MB / 0.6075 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0007302/1.542, allocations: 64 kB / 0.9153 GB, free: 4.273 MB / 0.6075 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.03013/1.572, allocations: 18.35 MB / 0.9333 GB, free: 1.805 MB / 0.6231 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 1.133e-05/1.572, allocations: 8 kB / 0.9333 GB, free: 1.797 MB / 0.6231 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.02962/1.601, allocations: 14.2 MB / 0.9471 GB, free: 3.406 MB / 0.6387 GB Notification: Performance of postOpt removeConstants (simulation): time 0.002096/1.603, allocations: 0.5196 MB / 0.9476 GB, free: 2.883 MB / 0.6387 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.001572/1.605, allocations: 67.98 kB / 0.9477 GB, free: 2.816 MB / 0.6387 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.003969/1.609, allocations: 219.7 kB / 0.9479 GB, free: 2.602 MB / 0.6387 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.001138/1.61, allocations: 242.1 kB / 0.9481 GB, free: 2.363 MB / 0.6387 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0003021/1.61, allocations: 99.66 kB / 0.9482 GB, free: 2.27 MB / 0.6387 GB Notification: Performance of sorting global known variables: time 0.007475/1.618, allocations: 3.631 MB / 0.9518 GB, free: 14.67 MB / 0.6544 GB Notification: Performance of sort global known variables: time 1e-07/1.618, allocations: 0 / 0.9518 GB, free: 14.67 MB / 0.6544 GB Notification: Performance of remove unused functions: time 0.00828/1.626, allocations: 1.683 MB / 0.9534 GB, free: 12.98 MB / 0.6544 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 29 * Number of states: 2 (revolute.phi,revolute.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 (256): * Single equations (assignments): 252 * Array equations: 3 * 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 {(1,64,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.0306/1.657, allocations: 14.94 MB / 0.968 GB, free: 13.84 MB / 0.67 GB Notification: Performance of simCode: created initialization part: time 0.01647/1.673, allocations: 8.824 MB / 0.9766 GB, free: 5.012 MB / 0.67 GB Notification: Performance of simCode: created event and clocks part: time 1.571e-05/1.673, allocations: 8.125 kB / 0.9767 GB, free: 5.004 MB / 0.67 GB Notification: Performance of simCode: created simulation system equations: time 0.006069/1.679, allocations: 3.319 MB / 0.9799 GB, free: 1.668 MB / 0.67 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004975/1.684, allocations: 0.7758 MB / 0.9807 GB, free: 0.9023 MB / 0.67 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.4158/2.1, allocations: 78.64 MB / 1.057 GB, free: 215.1 MB / 0.6856 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.005048/2.105, allocations: 4.821 MB / 1.062 GB, free: 210.3 MB / 0.6856 GB Notification: Performance of simCode: alias equations: time 0.005202/2.11, allocations: 2.589 MB / 1.065 GB, free: 207.7 MB / 0.6856 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.003263/2.114, allocations: 3.065 MB / 1.068 GB, free: 204.6 MB / 0.6856 GB Notification: Performance of SimCode: time 1.653e-06/2.114, allocations: 0 / 1.068 GB, free: 204.6 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.188/2.302, allocations: 132.4 MB / 1.197 GB, free: 72.9 MB / 0.6856 GB Notification: Performance of buildModelFMU: Generate platform static: time 42.95/45.25, allocations: 0 / 1.197 GB, free: 72.9 MB / 0.6856 GB " [Timeout remaining time 615] (rm -f ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.pipe ; mkfifo ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.pipe ; head -c 1048576 < ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.pipe >> ../files/ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.sim & python3 -m fmpy simulate --output-file ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP_res.csv --start-time 0 --stop-time 5 --timeout 50 --relative-tolerance 1e-06 --interface-type ModelExchange --solver CVode --output-interval 0.0009996 ModelicaTest_trunk_ModelicaTest_MultiBody_FourbarVariants_JointUSP.fmu > ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.pipe 2>&1) [Timeout 52.5] diffSimulationResults("ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP_res.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/Reference-modelica.org/ReferenceResults/MAP-LIB_ReferenceResults/v4.1.0/ModelicaTest/MultiBody/FourbarVariants/JointUSP/JointUSP.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 660] "Error: Could not read variable revolute.phi in file ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP_res.csv. Warning: Get data of variable revolute.phi from file ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP_res.csv failed! Error: Could not read variable revolute.w in file ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP_res.csv. Warning: Get data of variable revolute.w from file ModelicaTest_trunk_ModelicaTest.MultiBody.FourbarVariants.JointUSP_res.csv failed! " [Timeout remaining time 660] Reference file matches [Calling sys.exit(0), Time elapsed: 48.63071915299952]