Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.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 0.0008635/0.0008635, allocations: 80.44 kB / 19.17 MB, free: 0.7383 MB / 13.93 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 0.0009665/0.0009665, allocations: 169.9 kB / 22.46 MB, free: 2.102 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 0.8576/0.8576, allocations: 177.1 MB / 202.8 MB, free: 5.734 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/package.mo): time 1.646/1.646, allocations: 377.9 MB / 0.6221 GB, free: 8.648 MB / 0.5886 GB " [Timeout remaining time 178] Using package Buildings with version 12.1.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 12.1.2-maint.12.x/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(Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck,fileNamePrefix="Buildings_12_Buildings_Media_Examples_PropyleneGlycolWaterDerivativeCheck",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck,fileNamePrefix="Buildings_12_Buildings_Media_Examples_PropyleneGlycolWaterDerivativeCheck",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.222e-06/1.222e-06, allocations: 0 / 0.9809 GB, free: 2.633 MB / 0.9323 GB Notification: Performance of FrontEnd - Absyn->SCode: time 1.691e-05/1.813e-05, allocations: 6.219 kB / 0.9809 GB, free: 2.625 MB / 0.9323 GB Notification: Performance of NFInst.instantiate(Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck): time 0.001783/0.001801, allocations: 1.274 MB / 0.9822 GB, free: 1.34 MB / 0.9323 GB Notification: Performance of NFInst.instExpressions: time 0.002335/0.004136, allocations: 2.759 MB / 0.9849 GB, free: 14.57 MB / 0.948 GB Notification: Performance of NFInst.updateImplicitVariability: time 2.333e-05/0.00416, allocations: 0 / 0.9849 GB, free: 14.57 MB / 0.948 GB Notification: Performance of NFTyping.typeComponents: time 1.686e-05/0.004177, allocations: 4 kB / 0.9849 GB, free: 14.57 MB / 0.948 GB Notification: Performance of NFTyping.typeBindings: time 4.191e-05/0.004219, allocations: 3.938 kB / 0.9849 GB, free: 14.56 MB / 0.948 GB Notification: Performance of NFTyping.typeClassSections: time 0.0004227/0.004641, allocations: 111.4 kB / 0.985 GB, free: 14.45 MB / 0.948 GB Notification: Performance of NFFlatten.flatten: time 6.838e-05/0.00471, allocations: 39.86 kB / 0.985 GB, free: 14.41 MB / 0.948 GB Notification: Performance of NFFlatten.resolveConnections: time 3.148e-05/0.004741, allocations: 3.984 kB / 0.985 GB, free: 14.41 MB / 0.948 GB Notification: Performance of NFEvalConstants.evaluate: time 0.0003719/0.005113, allocations: 191.4 kB / 0.9852 GB, free: 14.22 MB / 0.948 GB Notification: Performance of NFSimplifyModel.simplify: time 3.181e-05/0.005145, allocations: 11.97 kB / 0.9852 GB, free: 14.21 MB / 0.948 GB Notification: Performance of NFPackage.collectConstants: time 1.164e-05/0.005156, allocations: 4 kB / 0.9852 GB, free: 14.21 MB / 0.948 GB Notification: Performance of NFFlatten.collectFunctions: time 9.326e-05/0.00525, allocations: 55.77 kB / 0.9853 GB, free: 14.15 MB / 0.948 GB Notification: Performance of NFScalarize.scalarize: time 1.43e-05/0.005264, allocations: 15.92 kB / 0.9853 GB, free: 14.14 MB / 0.948 GB Notification: Performance of NFVerifyModel.verify: time 1.951e-05/0.005283, allocations: 8 kB / 0.9853 GB, free: 14.13 MB / 0.948 GB Notification: Performance of NFConvertDAE.convert: time 0.0001329/0.005416, allocations: 67.84 kB / 0.9854 GB, free: 14.06 MB / 0.948 GB Notification: Performance of FrontEnd - DAE generated: time 2.334e-06/0.005419, allocations: 0 / 0.9854 GB, free: 14.06 MB / 0.948 GB Notification: Performance of FrontEnd: time 1.112e-06/0.00542, allocations: 0 / 0.9854 GB, free: 14.06 MB / 0.948 GB Notification: Performance of Transformations before backend: time 4.148e-06/0.005424, allocations: 0 / 0.9854 GB, free: 14.06 MB / 0.948 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 7 * Number of variables: 7 Notification: Performance of Generate backend data structure: time 0.0003045/0.005728, allocations: 270.3 kB / 0.9856 GB, free: 13.77 MB / 0.948 GB Notification: Performance of prepare preOptimizeDAE: time 3.4e-05/0.005763, allocations: 12.03 kB / 0.9856 GB, free: 13.76 MB / 0.948 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 2.793e-05/0.00579, allocations: 34.75 kB / 0.9857 GB, free: 13.71 MB / 0.948 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 2.764e-05/0.005818, allocations: 8.891 kB / 0.9857 GB, free: 13.71 MB / 0.948 GB Notification: Performance of preOpt evaluateParameters (simulation): time 6.478e-05/0.005883, allocations: 109.7 kB / 0.9858 GB, free: 13.57 MB / 0.948 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 1.047e-05/0.005893, allocations: 4.375 kB / 0.9858 GB, free: 13.57 MB / 0.948 GB Notification: Performance of preOpt expandDerOperator (simulation): time 2.005e-05/0.005913, allocations: 8.375 kB / 0.9858 GB, free: 13.56 MB / 0.948 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.0001229/0.006036, allocations: 131.3 kB / 0.9859 GB, free: 13.41 MB / 0.948 GB Notification: Performance of preOpt findStateOrder (simulation): time 6.723e-06/0.006043, allocations: 4.125 kB / 0.9859 GB, free: 13.41 MB / 0.948 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.926e-06/0.006052, allocations: 3.938 kB / 0.9859 GB, free: 13.4 MB / 0.948 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 3.927e-06/0.006056, allocations: 0 / 0.9859 GB, free: 13.4 MB / 0.948 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 4.359e-05/0.006099, allocations: 23.97 kB / 0.9859 GB, free: 13.38 MB / 0.948 GB Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.0001224/0.006222, allocations: 136.7 kB / 0.9861 GB, free: 13.2 MB / 0.948 GB Notification: Performance of preOpt comSubExp (simulation): time 7.048e-05/0.006292, allocations: 46.55 kB / 0.9861 GB, free: 13.15 MB / 0.948 GB Notification: Performance of preOpt resolveLoops (simulation): time 2.063e-05/0.006313, allocations: 12.86 kB / 0.9861 GB, free: 13.13 MB / 0.948 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0004116/0.006725, allocations: 245.8 kB / 0.9864 GB, free: 12.87 MB / 0.948 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 1.835e-05/0.006743, allocations: 42.55 kB / 0.9864 GB, free: 12.82 MB / 0.948 GB Notification: Performance of pre-optimization done (n=5): time 9.21e-07/0.006744, allocations: 0 / 0.9864 GB, free: 12.82 MB / 0.948 GB Notification: Performance of matching and sorting (n=7): time 0.0004068/0.007151, allocations: 229.4 kB / 0.9866 GB, free: 12.56 MB / 0.948 GB Notification: Performance of inlineWhenForInitialization (initialization): time 2.611e-05/0.007177, allocations: 55.41 kB / 0.9867 GB, free: 12.5 MB / 0.948 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 5.066e-05/0.007227, allocations: 97.86 kB / 0.9868 GB, free: 12.39 MB / 0.948 GB Notification: Performance of collectPreVariables (initialization): time 9.648e-06/0.007237, allocations: 25.7 kB / 0.9868 GB, free: 12.36 MB / 0.948 GB Notification: Performance of collectInitialEqns (initialization): time 3.264e-05/0.00727, allocations: 92.08 kB / 0.9869 GB, free: 12.27 MB / 0.948 GB Notification: Performance of collectInitialBindings (initialization): time 1.324e-05/0.007283, allocations: 27.75 kB / 0.9869 GB, free: 12.24 MB / 0.948 GB Notification: Performance of simplifyInitialFunctions (initialization): time 2.918e-05/0.007312, allocations: 25.7 kB / 0.9869 GB, free: 12.21 MB / 0.948 GB Notification: Performance of setup shared object (initialization): time 6.968e-05/0.007382, allocations: 322.8 kB / 0.9872 GB, free: 11.88 MB / 0.948 GB Notification: Performance of preBalanceInitialSystem (initialization): time 1.837e-05/0.0074, allocations: 15.94 kB / 0.9872 GB, free: 11.87 MB / 0.948 GB Notification: Performance of partitionIndependentBlocks (initialization): time 3.864e-05/0.007439, allocations: 53.14 kB / 0.9873 GB, free: 11.8 MB / 0.948 GB Notification: Performance of analyzeInitialSystem (initialization): time 5.898e-05/0.007498, allocations: 73.02 kB / 0.9874 GB, free: 11.71 MB / 0.948 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.853e-06/0.0075, allocations: 4 kB / 0.9874 GB, free: 11.7 MB / 0.948 GB Notification: Performance of matching and sorting (n=12) (initialization): time 8.883e-05/0.007588, allocations: 97.59 kB / 0.9875 GB, free: 11.6 MB / 0.948 GB Notification: Performance of prepare postOptimizeDAE: time 1.083e-05/0.007599, allocations: 8.031 kB / 0.9875 GB, free: 11.59 MB / 0.948 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 5.24e-06/0.007605, allocations: 4 kB / 0.9875 GB, free: 11.59 MB / 0.948 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.013e-05/0.007615, allocations: 0 / 0.9875 GB, free: 11.59 MB / 0.948 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 4.675e-05/0.007661, allocations: 19.98 kB / 0.9875 GB, free: 11.57 MB / 0.948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 6.753e-06/0.007668, allocations: 7.938 kB / 0.9875 GB, free: 11.56 MB / 0.948 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 1.95e-05/0.007688, allocations: 448 / 0.9875 GB, free: 11.56 MB / 0.948 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 5.059e-06/0.007693, allocations: 4 kB / 0.9875 GB, free: 11.56 MB / 0.948 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 6 * 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 (12): * Single equations (assignments): 12 * Array equations: 0 * 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 5.162e-05/0.007744, allocations: 117.8 kB / 0.9876 GB, free: 11.43 MB / 0.948 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 1.372e-05/0.007758, allocations: 4 kB / 0.9876 GB, free: 11.43 MB / 0.948 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 2.051e-05/0.007779, allocations: 8.125 kB / 0.9876 GB, free: 11.42 MB / 0.948 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.463e-06/0.00778, allocations: 4 kB / 0.9876 GB, free: 11.41 MB / 0.948 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 4.368e-06/0.007784, allocations: 4 kB / 0.9876 GB, free: 11.41 MB / 0.948 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 3.096e-06/0.007787, allocations: 4 kB / 0.9876 GB, free: 11.41 MB / 0.948 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.0001396/0.007927, allocations: 148.7 kB / 0.9878 GB, free: 11.22 MB / 0.948 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.71e-07/0.007928, allocations: 0 / 0.9878 GB, free: 11.22 MB / 0.948 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 4.508e-05/0.007973, allocations: 12 kB / 0.9878 GB, free: 11.21 MB / 0.948 GB Notification: Performance of postOpt tearingSystem (simulation): time 1.353e-06/0.007974, allocations: 0 / 0.9878 GB, free: 11.21 MB / 0.948 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 7.544e-06/0.007982, allocations: 3.984 kB / 0.9878 GB, free: 11.2 MB / 0.948 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 1.623e-06/0.007983, allocations: 3.938 kB / 0.9878 GB, free: 11.2 MB / 0.948 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 9.11e-07/0.007984, allocations: 4 kB / 0.9878 GB, free: 11.2 MB / 0.948 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0001223/0.008107, allocations: 179.4 kB / 0.988 GB, free: 11 MB / 0.948 GB Notification: Performance of postOpt removeConstants (simulation): time 1.95e-05/0.008126, allocations: 8.031 kB / 0.988 GB, free: 11 MB / 0.948 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.477e-06/0.008136, allocations: 4 kB / 0.988 GB, free: 10.99 MB / 0.948 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 5.433e-05/0.00819, allocations: 4 kB / 0.988 GB, free: 10.99 MB / 0.948 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 1.436e-05/0.008204, allocations: 3.984 kB / 0.988 GB, free: 10.98 MB / 0.948 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.08e-06/0.008209, allocations: 4 kB / 0.988 GB, free: 10.98 MB / 0.948 GB Notification: Performance of sorting global known variables: time 2.3e-05/0.008232, allocations: 83.64 kB / 0.9881 GB, free: 10.9 MB / 0.948 GB Notification: Performance of sort global known variables: time 7e-08/0.008232, allocations: 3.938 kB / 0.9881 GB, free: 10.89 MB / 0.948 GB Notification: Performance of remove unused functions: time 0.0001564/0.008389, allocations: 12 kB / 0.9881 GB, free: 10.88 MB / 0.948 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 3 (hLiqSym,cpSym,cvSym) * 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 (7): * Single equations (assignments): 7 * Array equations: 0 * 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 0.0005377/0.008927, allocations: 0.7123 MB / 0.9888 GB, free: 10.14 MB / 0.948 GB Notification: Performance of simCode: created initialization part: time 8.047e-05/0.009007, allocations: 43.95 kB / 0.9888 GB, free: 10.1 MB / 0.948 GB Notification: Performance of simCode: created event and clocks part: time 1.373e-06/0.009008, allocations: 0 / 0.9888 GB, free: 10.1 MB / 0.948 GB Notification: Performance of simCode: created simulation system equations: time 1.591e-05/0.009024, allocations: 19.92 kB / 0.9889 GB, free: 10.08 MB / 0.948 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0002136/0.009238, allocations: 6.578 kB / 0.9889 GB, free: 10.08 MB / 0.948 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.0008672/0.01011, allocations: 1.477 MB / 0.9903 GB, free: 8.488 MB / 0.948 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 4.085e-05/0.01015, allocations: 71.3 kB / 0.9904 GB, free: 8.398 MB / 0.948 GB Notification: Performance of simCode: alias equations: time 3.122e-05/0.01018, allocations: 4.062 kB / 0.9904 GB, free: 8.395 MB / 0.948 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 3.25e-05/0.01021, allocations: 16.5 kB / 0.9904 GB, free: 8.379 MB / 0.948 GB Notification: Performance of SimCode: time 6.21e-07/0.01021, allocations: 0 / 0.9904 GB, free: 8.379 MB / 0.948 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.01619/0.0264, allocations: 2.347 MB / 0.9927 GB, free: 6.176 MB / 0.948 GB Notification: Performance of buildModelFMU: Generate platform static: time 6.513/6.539, allocations: 6.672 kB / 0.9927 GB, free: 6.176 MB / 0.948 GB " [Timeout remaining time 293] (rm -f Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.pipe ; mkfifo Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.pipe ; head -c 1048576 < Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.pipe >> ../files/Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.sim & python3 -m fmpy simulate --output-file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv --start-time 0 --stop-time 1 --timeout 400 --relative-tolerance 1e-08 --interface-type ModelExchange --solver CVode --output-interval 0.0004 Buildings_12_Buildings_Media_Examples_PropyleneGlycolWaterDerivativeCheck.fmu > Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv","/mnt/ReferenceFiles/Buildings/csv/maint_12.x/Buildings_Media_Examples_PropyleneGlycolWaterDerivativeCheck.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "Error: Could not read variable der(hLiqSym) in file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv. Warning: Get data of variable der(hLiqSym) from file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv failed! Error: Could not read variable der(hLiqCod) in file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv. Warning: Get data of variable der(hLiqCod) from file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv failed! Error: Could not read variable der(cpSym) in file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv. Warning: Get data of variable der(cpSym) from file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv failed! Error: Could not read variable der(cpCod) in file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv. Warning: Get data of variable der(cpCod) from file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv failed! Error: Could not read variable der(cvSym) in file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv. Warning: Get data of variable der(cvSym) from file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv failed! Error: Could not read variable der(cvCod) in file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv. Warning: Get data of variable der(cvCod) from file Buildings_12_Buildings.Media.Examples.PropyleneGlycolWaterDerivativeCheck_res.csv failed! " [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 10.481787083670497]