Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.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 0.0009243/0.0009243, allocations: 91.67 kB / 20.94 MB, free: 3.305 MB / 18.57 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 0.003906/0.003906, allocations: 162.3 kB / 24.38 MB, free: 8.598 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 0.9009/0.9009, allocations: 177.1 MB / 204.8 MB, free: 4.84 MB / 186.7 MB " [Timeout remaining time 179] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.x/package.mo): time 1.834/1.834, allocations: 389.6 MB / 0.6356 GB, free: 12.23 MB / 0.6042 GB " [Timeout remaining time 178] Using package Buildings with version 13.0.2 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 13.0.2-maint.13.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: translateModel(Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation") translateModel(Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 1.733e-06/1.733e-06, allocations: 0 / 0.7756 GB, free: 5.145 MB / 0.7292 GB Notification: Performance of FrontEnd - Absyn->SCode: time 2.576e-05/2.749e-05, allocations: 3.219 kB / 0.7756 GB, free: 5.141 MB / 0.7292 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation): time 0.1433/0.1434, allocations: 152.9 MB / 0.9248 GB, free: 11.91 MB / 0.8855 GB Notification: Performance of NFInst.instExpressions: time 0.006989/0.1504, allocations: 4.848 MB / 0.9296 GB, free: 7.051 MB / 0.8855 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.0009378/0.1513, allocations: 59.44 kB / 0.9296 GB, free: 6.992 MB / 0.8855 GB Notification: Performance of NFTyping.typeComponents: time 0.0008156/0.1521, allocations: 412.9 kB / 0.93 GB, free: 6.586 MB / 0.8855 GB Notification: Performance of NFTyping.typeBindings: time 0.001916/0.154, allocations: 1.247 MB / 0.9312 GB, free: 5.332 MB / 0.8855 GB Notification: Performance of NFTyping.typeClassSections: time 0.002081/0.1561, allocations: 1.452 MB / 0.9327 GB, free: 3.883 MB / 0.8855 GB Notification: Performance of NFFlatten.flatten: time 0.002804/0.1589, allocations: 2.849 MB / 0.9354 GB, free: 1.027 MB / 0.8855 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001287/0.1602, allocations: 0.7924 MB / 0.9362 GB, free: 264 kB / 0.8855 GB Notification: Performance of NFEvalConstants.evaluate: time 0.00207/0.1623, allocations: 1.488 MB / 0.9377 GB, free: 14.82 MB / 0.9011 GB Notification: Performance of NFSimplifyModel.simplify: time 0.0008303/0.1631, allocations: 0.6347 MB / 0.9383 GB, free: 14.18 MB / 0.9011 GB Notification: Performance of NFPackage.collectConstants: time 0.0001462/0.1632, allocations: 96 kB / 0.9384 GB, free: 14.09 MB / 0.9011 GB Notification: Performance of NFFlatten.collectFunctions: time 0.00124/0.1645, allocations: 0.7445 MB / 0.9391 GB, free: 13.34 MB / 0.9011 GB Notification: Performance of NFScalarize.scalarize: time 0.0003082/0.1648, allocations: 390.7 kB / 0.9395 GB, free: 12.96 MB / 0.9011 GB Notification: Performance of NFVerifyModel.verify: time 0.000408/0.1652, allocations: 387 kB / 0.9399 GB, free: 12.58 MB / 0.9011 GB Notification: Performance of NFConvertDAE.convert: time 0.001678/0.1669, allocations: 1.367 MB / 0.9412 GB, free: 11.21 MB / 0.9011 GB Notification: Performance of FrontEnd - DAE generated: time 3.917e-06/0.1669, allocations: 0 / 0.9412 GB, free: 11.21 MB / 0.9011 GB Notification: Performance of FrontEnd: time 8.42e-07/0.1669, allocations: 0 / 0.9412 GB, free: 11.21 MB / 0.9011 GB Notification: Performance of Transformations before backend: time 1.569e-05/0.1669, allocations: 0 / 0.9412 GB, free: 11.21 MB / 0.9011 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 170 * Number of variables: 170 Notification: Performance of Generate backend data structure: time 0.002128/0.169, allocations: 1.418 MB / 0.9426 GB, free: 9.758 MB / 0.9011 GB Notification: Performance of prepare preOptimizeDAE: time 3.245e-05/0.1691, allocations: 9.344 kB / 0.9426 GB, free: 9.75 MB / 0.9011 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001377/0.1704, allocations: 476.1 kB / 0.943 GB, free: 9.285 MB / 0.9011 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.0009637/0.1714, allocations: 0.6771 MB / 0.9437 GB, free: 8.578 MB / 0.9011 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001155/0.1715, allocations: 57.44 kB / 0.9438 GB, free: 8.52 MB / 0.9011 GB Notification: Performance of preOpt expandDerOperator (simulation): time 9.944e-05/0.1716, allocations: 75.94 kB / 0.9438 GB, free: 8.445 MB / 0.9011 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001034/0.1726, allocations: 0.7923 MB / 0.9446 GB, free: 7.59 MB / 0.9011 GB Notification: Performance of preOpt findStateOrder (simulation): time 1.572e-05/0.1727, allocations: 0 / 0.9446 GB, free: 7.59 MB / 0.9011 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 6.374e-05/0.1727, allocations: 28 kB / 0.9446 GB, free: 7.562 MB / 0.9011 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.435e-05/0.1728, allocations: 33.31 kB / 0.9447 GB, free: 7.531 MB / 0.9011 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.0005451/0.1733, allocations: 321.5 kB / 0.945 GB, free: 7.207 MB / 0.9011 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.002868/0.1762, allocations: 1.928 MB / 0.9468 GB, free: 5.234 MB / 0.9011 GB Notification: Performance of preOpt comSubExp (simulation): time 0.0007421/0.1769, allocations: 358.4 kB / 0.9472 GB, free: 4.863 MB / 0.9011 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0001928/0.1771, allocations: 154.8 kB / 0.9473 GB, free: 4.703 MB / 0.9011 GB Notification: Performance of preOpt evalFunc (simulation): time 0.000121/0.1772, allocations: 48.47 kB / 0.9474 GB, free: 4.656 MB / 0.9011 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0003982/0.1776, allocations: 410.1 kB / 0.9478 GB, free: 4.199 MB / 0.9011 GB Notification: Performance of pre-optimization done (n=57): time 2.174e-06/0.1776, allocations: 0 / 0.9478 GB, free: 4.199 MB / 0.9011 GB Notification: Performance of matching and sorting (n=57): time 0.0008535/0.1785, allocations: 0.4906 MB / 0.9483 GB, free: 3.68 MB / 0.9011 GB Notification: Performance of inlineWhenForInitialization (initialization): time 5.953e-05/0.1786, allocations: 144.8 kB / 0.9484 GB, free: 3.508 MB / 0.9011 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.0006598/0.1792, allocations: 0.6755 MB / 0.949 GB, free: 2.816 MB / 0.9011 GB Notification: Performance of collectPreVariables (initialization): time 5.004e-05/0.1793, allocations: 37.7 kB / 0.9491 GB, free: 2.773 MB / 0.9011 GB Notification: Performance of collectInitialEqns (initialization): time 0.0001969/0.1795, allocations: 346.4 kB / 0.9494 GB, free: 2.43 MB / 0.9011 GB Notification: Performance of collectInitialBindings (initialization): time 0.0001288/0.1796, allocations: 194.2 kB / 0.9496 GB, free: 2.238 MB / 0.9011 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001981/0.1798, allocations: 130.2 kB / 0.9497 GB, free: 2.105 MB / 0.9011 GB Notification: Performance of setup shared object (initialization): time 8.69e-05/0.1799, allocations: 329.9 kB / 0.95 GB, free: 1.777 MB / 0.9011 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0001893/0.1801, allocations: 105.8 kB / 0.9501 GB, free: 1.668 MB / 0.9011 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0003481/0.1804, allocations: 0.5323 MB / 0.9507 GB, free: 1.016 MB / 0.9011 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.0004393/0.1809, allocations: 387.3 kB / 0.951 GB, free: 0.5781 MB / 0.9011 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.047e-06/0.1809, allocations: 0 / 0.951 GB, free: 0.5781 MB / 0.9011 GB Notification: Performance of matching and sorting (n=72) (initialization): time 0.000603/0.1815, allocations: 418 kB / 0.9514 GB, free: 152 kB / 0.9011 GB Notification: Performance of prepare postOptimizeDAE: time 4.029e-05/0.1815, allocations: 41.69 kB / 0.9515 GB, free: 104 kB / 0.9011 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 7.153e-06/0.1815, allocations: 4 kB / 0.9515 GB, free: 100 kB / 0.9011 GB Notification: Performance of postOpt tearingSystem (initialization): time 1.338e-05/0.1815, allocations: 16.28 kB / 0.9515 GB, free: 84 kB / 0.9011 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0005119/0.182, allocations: 159.8 kB / 0.9516 GB, free: 15.93 MB / 0.9167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 8.116e-06/0.182, allocations: 7.938 kB / 0.9516 GB, free: 15.92 MB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.0005371/0.1826, allocations: 148 kB / 0.9518 GB, free: 15.77 MB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 6.371e-05/0.1826, allocations: 27.97 kB / 0.9518 GB, free: 15.75 MB / 0.9167 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 14 * Number of states: 0 () * Number of discrete variables: 7 (QSen_flow.nextEventScaled,QSen_flow.nextEvent,$PRE.QSen_flow.nextEvent,QSen_flow.last,QSen_flow.b,QSen_flow.a,$whenCondition1) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (67): * Single equations (assignments): 66 * Array equations: 0 * Algorithm blocks: 1 * 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 0.0002194/0.1829, allocations: 182.2 kB / 0.952 GB, free: 15.55 MB / 0.9167 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0001106/0.183, allocations: 75.92 kB / 0.9521 GB, free: 15.48 MB / 0.9167 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.0006427/0.1836, allocations: 471.7 kB / 0.9525 GB, free: 15 MB / 0.9167 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 8.777e-06/0.1836, allocations: 8 kB / 0.9525 GB, free: 14.99 MB / 0.9167 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 3.897e-06/0.1836, allocations: 3.938 kB / 0.9525 GB, free: 14.99 MB / 0.9167 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 6.963e-06/0.1836, allocations: 7.984 kB / 0.9525 GB, free: 14.98 MB / 0.9167 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002099/0.1857, allocations: 1.645 MB / 0.9541 GB, free: 13.17 MB / 0.9167 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 7.955e-06/0.1857, allocations: 12.19 kB / 0.9541 GB, free: 13.16 MB / 0.9167 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0003405/0.1861, allocations: 115.8 kB / 0.9543 GB, free: 13.05 MB / 0.9167 GB Notification: Performance of postOpt tearingSystem (simulation): time 8.816e-06/0.1861, allocations: 8 kB / 0.9543 GB, free: 13.04 MB / 0.9167 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 4.182e-05/0.1861, allocations: 27.98 kB / 0.9543 GB, free: 13.01 MB / 0.9167 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 8.887e-06/0.1861, allocations: 11.94 kB / 0.9543 GB, free: 13 MB / 0.9167 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 8.245e-06/0.1861, allocations: 11.94 kB / 0.9543 GB, free: 12.99 MB / 0.9167 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.0007529/0.1869, allocations: 0.9274 MB / 0.9552 GB, free: 11.89 MB / 0.9167 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0002838/0.1872, allocations: 159.2 kB / 0.9554 GB, free: 11.74 MB / 0.9167 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 9.588e-05/0.1873, allocations: 28 kB / 0.9554 GB, free: 11.71 MB / 0.9167 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0004896/0.1878, allocations: 67.94 kB / 0.9555 GB, free: 11.64 MB / 0.9167 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 8.59e-05/0.1879, allocations: 59.75 kB / 0.9555 GB, free: 11.59 MB / 0.9167 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 5.864e-05/0.1879, allocations: 31.97 kB / 0.9556 GB, free: 11.55 MB / 0.9167 GB Notification: Performance of sorting global known variables: time 0.0002959/0.1882, allocations: 316.5 kB / 0.9559 GB, free: 11.25 MB / 0.9167 GB Notification: Performance of sort global known variables: time 1.1e-07/0.1882, allocations: 4 kB / 0.9559 GB, free: 11.25 MB / 0.9167 GB Notification: Performance of remove unused functions: time 0.0007449/0.189, allocations: 295.4 kB / 0.9561 GB, free: 10.96 MB / 0.9167 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 32 * Number of states: 0 () * Number of discrete variables: 6 ($whenCondition1,QSen_flow.a,QSen_flow.b,QSen_flow.last,QSen_flow.nextEvent,QSen_flow.nextEventScaled) * Number of discrete states: 6 (QSen_flow.nextEvent,QSen_flow.last,QSen_flow.nextEventScaled,QSen_flow.b,QSen_flow.a,$whenCondition1) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (56): * Single equations (assignments): 51 * Array equations: 0 * Algorithm blocks: 1 * Record equations: 4 * 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 0.0003386/0.1893, allocations: 212.6 kB / 0.9563 GB, free: 10.74 MB / 0.9167 GB Notification: Performance of simCode: created initialization part: time 0.0005953/0.1899, allocations: 439.2 kB / 0.9568 GB, free: 10.29 MB / 0.9167 GB Notification: Performance of simCode: created event and clocks part: time 1.249e-05/0.1899, allocations: 8.688 kB / 0.9568 GB, free: 10.28 MB / 0.9167 GB Notification: Performance of simCode: created simulation system equations: time 0.0002963/0.1902, allocations: 268.7 kB / 0.957 GB, free: 9.996 MB / 0.9167 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001215/0.1914, allocations: 368.2 kB / 0.9574 GB, free: 9.637 MB / 0.9167 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.002405/0.1938, allocations: 1.744 MB / 0.9591 GB, free: 7.742 MB / 0.9167 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0001974/0.194, allocations: 216.2 kB / 0.9593 GB, free: 7.512 MB / 0.9167 GB Notification: Performance of simCode: alias equations: time 0.0005743/0.1946, allocations: 148.9 kB / 0.9594 GB, free: 7.367 MB / 0.9167 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0007801/0.1954, allocations: 323 kB / 0.9597 GB, free: 7.051 MB / 0.9167 GB Notification: Performance of SimCode: time 1.333e-06/0.1954, allocations: 4 kB / 0.9597 GB, free: 7.047 MB / 0.9167 GB Notification: Performance of Templates: time 0.02329/0.2187, allocations: 17.19 MB / 0.9765 GB, free: 6.207 MB / 0.9323 GB " [Timeout remaining time 300] make -j1 -f Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.makefile [Timeout 300] (rm -f Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.pipe ; mkfifo Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.pipe >> ../files/Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.sim & (cd run_cvode && ../Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation -abortSlowSimulation -alarm=240 -lv LOG_STATS -inputPath=.. -s cvode) > Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation.pipe 2>&1) [Timeout 240] (rm -f Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_gbode.pipe ; mkfifo Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_gbode.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_gbode.pipe >> /var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_gbode.sim & (cd run_gbode && ../Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation -abortSlowSimulation -alarm=240 -lv LOG_STATS -inputPath=.. -s gbode -gbm=radauIIA3) > Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_gbode.pipe 2>&1) [Timeout 240] (rm -f Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_ida.pipe ; mkfifo Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_ida.pipe ; head -c 1048576 < Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_ida.pipe >> /var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_ida.sim & (cd run_ida && ../Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation -abortSlowSimulation -alarm=240 -lv LOG_STATS -inputPath=.. -s ida) > Buildings_13_Buildings.Fluid.Interfaces.Examples.StaticTwoPortConservationEquation_ida.pipe 2>&1) [Timeout 240] [Calling sys.exit(0), Time elapsed: 5.512978159822524]