Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.001836/0.001836, allocations: 113.8 kB / 17.61 MB, free: 4.703 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.002202/0.002202, allocations: 186 kB / 20.78 MB, free: 1.547 MB / 14.72 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo): time 1.505/1.505, allocations: 225.6 MB / 249.4 MB, free: 3.156 MB / 190.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo): time 2.785/2.785, allocations: 476.7 MB / 0.7629 GB, free: 15.2 MB / 0.6075 GB " [Timeout remaining time 176] Using package Buildings with version 11.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.0-maint.11.x/package.mo) Using package Modelica with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 4.0.0+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Fluid.Examples.Performance.Example1v1,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|pump.m_flow",fileNamePrefix="Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1") translateModel(Buildings.Fluid.Examples.Performance.Example1v1,tolerance=1e-06,outputFormat="mat",numberOfIntervals=2500,variableFilter="time|pump.m_flow",fileNamePrefix="Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1") [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.001992/0.001992, allocations: 63.91 kB / 1.107 GB, free: 4.613 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.9704/0.9724, allocations: 168.7 MB / 1.272 GB, free: 7.938 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.Examples.Performance.Example1v1): time 0.08249/1.055, allocations: 74.07 MB / 1.344 GB, free: 3.34 MB / 1.045 GB Notification: Performance of NFInst.instExpressions: time 0.03358/1.088, allocations: 18.95 MB / 1.363 GB, free: 5.969 MB / 1.061 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005197/1.094, allocations: 91.16 kB / 1.363 GB, free: 5.938 MB / 1.061 GB Notification: Performance of NFTyping.typeComponents: time 0.007359/1.101, allocations: 1.822 MB / 1.365 GB, free: 5.102 MB / 1.061 GB Notification: Performance of NFTyping.typeBindings: time 0.009828/1.111, allocations: 2.598 MB / 1.367 GB, free: 3.574 MB / 1.061 GB Notification: Performance of NFTyping.typeClassSections: time 0.007284/1.118, allocations: 2.183 MB / 1.369 GB, free: 2.426 MB / 1.061 GB Notification: Performance of NFFlatten.flatten: time 0.01746/1.136, allocations: 11 MB / 1.38 GB, free: 12.37 MB / 1.076 GB Notification: Performance of NFFlatten.resolveConnections: time 0.007615/1.143, allocations: 4.898 MB / 1.385 GB, free: 8.727 MB / 1.076 GB Notification: Performance of NFEvalConstants.evaluate: time 0.009526/1.153, allocations: 3.381 MB / 1.388 GB, free: 6.809 MB / 1.076 GB Notification: Performance of NFSimplifyModel.simplify: time 0.006916/1.16, allocations: 2.674 MB / 1.391 GB, free: 5.195 MB / 1.076 GB Notification: Performance of NFPackage.collectConstants: time 0.00158/1.161, allocations: 266.4 kB / 1.391 GB, free: 5.195 MB / 1.076 GB Notification: Performance of NFFlatten.collectFunctions: time 0.006525/1.168, allocations: 1.591 MB / 1.393 GB, free: 4.473 MB / 1.076 GB Notification: Performance of NFScalarize.scalarize: time 0.001874/1.17, allocations: 0.9385 MB / 1.394 GB, free: 3.766 MB / 1.076 GB Notification: Performance of NFVerifyModel.verify: time 0.004534/1.174, allocations: 1.957 MB / 1.395 GB, free: 2.473 MB / 1.076 GB Notification: Performance of NFConvertDAE.convert: time 0.01095/1.185, allocations: 5.387 MB / 1.401 GB, free: 14.9 MB / 1.092 GB Notification: Performance of FrontEnd - DAE generated: time 4.759e-06/1.185, allocations: 0 / 1.401 GB, free: 14.9 MB / 1.092 GB Notification: Performance of FrontEnd: time 1.402e-06/1.185, allocations: 0 / 1.401 GB, free: 14.9 MB / 1.092 GB Notification: Performance of Transformations before backend: time 0.0001667/1.185, allocations: 0 / 1.401 GB, free: 14.9 MB / 1.092 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 402 * Number of variables: 402 Notification: Performance of Generate backend data structure: time 0.01198/1.197, allocations: 4.389 MB / 1.405 GB, free: 11.7 MB / 1.092 GB Notification: Performance of prepare preOptimizeDAE: time 5.244e-05/1.197, allocations: 14.16 kB / 1.405 GB, free: 11.7 MB / 1.092 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.00353/1.201, allocations: 0.694 MB / 1.406 GB, free: 11.36 MB / 1.092 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.008723/1.21, allocations: 3.852 MB / 1.409 GB, free: 7.98 MB / 1.092 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001476/1.21, allocations: 135.2 kB / 1.41 GB, free: 7.848 MB / 1.092 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003532/1.21, allocations: 188 kB / 1.41 GB, free: 7.664 MB / 1.092 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.004514/1.215, allocations: 2.344 MB / 1.412 GB, free: 5.172 MB / 1.092 GB Notification: Performance of preOpt findStateOrder (simulation): time 4.447e-05/1.215, allocations: 7.938 kB / 1.412 GB, free: 5.164 MB / 1.092 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.000191/1.215, allocations: 68 kB / 1.412 GB, free: 5.098 MB / 1.092 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.137e-05/1.215, allocations: 40 kB / 1.412 GB, free: 5.059 MB / 1.092 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.004235/1.219, allocations: 1.955 MB / 1.414 GB, free: 3.098 MB / 1.092 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 0.02077/1.24, allocations: 11.7 MB / 1.425 GB, free: 6.922 MB / 1.107 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002971/1.243, allocations: 1.34 MB / 1.427 GB, free: 5.574 MB / 1.107 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.001864/1.245, allocations: 1.003 MB / 1.428 GB, free: 4.566 MB / 1.107 GB Notification: Performance of preOpt evalFunc (simulation): time 0.007983/1.253, allocations: 4.095 MB / 1.432 GB, free: 204 kB / 1.107 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001791/1.255, allocations: 0.8912 MB / 1.433 GB, free: 15.29 MB / 1.123 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.002443/1.257, allocations: 494.7 kB / 1.433 GB, free: 14.81 MB / 1.123 GB Notification: Performance of pre-optimization done (n=95): time 6.342e-06/1.257, allocations: 0 / 1.433 GB, free: 14.81 MB / 1.123 GB Notification: Performance of matching and sorting (n=95): time 0.01407/1.271, allocations: 4.517 MB / 1.437 GB, free: 10.25 MB / 1.123 GB Notification: Performance of inlineWhenForInitialization (initialization): time 6.573e-05/1.271, allocations: 68.34 kB / 1.438 GB, free: 10.16 MB / 1.123 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.007673/1.279, allocations: 3.479 MB / 1.441 GB, free: 6.66 MB / 1.123 GB Notification: Performance of collectPreVariables (initialization): time 0.0004448/1.279, allocations: 53.7 kB / 1.441 GB, free: 6.602 MB / 1.123 GB Notification: Performance of collectInitialEqns (initialization): time 0.002244/1.281, allocations: 1.582 MB / 1.443 GB, free: 5.008 MB / 1.123 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006518/1.282, allocations: 357 kB / 1.443 GB, free: 4.656 MB / 1.123 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.001419/1.284, allocations: 483.6 kB / 1.443 GB, free: 4.18 MB / 1.123 GB Notification: Performance of setup shared object (initialization): time 0.0001248/1.284, allocations: 305.1 kB / 1.444 GB, free: 3.879 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.002072/1.286, allocations: 0.9581 MB / 1.445 GB, free: 2.918 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.002854/1.289, allocations: 1.776 MB / 1.446 GB, free: 0.7734 MB / 1.123 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.004504/1.293, allocations: 2.462 MB / 1.449 GB, free: 14.09 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.713e-05/1.293, allocations: 8 kB / 1.449 GB, free: 14.08 MB / 1.139 GB Notification: Performance of matching and sorting (n=250) (initialization): time 0.00851/1.302, allocations: 3.542 MB / 1.452 GB, free: 10.52 MB / 1.139 GB Notification: Performance of prepare postOptimizeDAE: time 7.101e-05/1.302, allocations: 45.7 kB / 1.452 GB, free: 10.46 MB / 1.139 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.299e-05/1.302, allocations: 12 kB / 1.452 GB, free: 10.45 MB / 1.139 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.002707/1.304, allocations: 0.6926 MB / 1.453 GB, free: 9.754 MB / 1.139 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001868/1.306, allocations: 369.2 kB / 1.453 GB, free: 9.395 MB / 1.139 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002614/1.309, allocations: 1.901 MB / 1.455 GB, free: 7.441 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003792/1.313, allocations: 124.4 kB / 1.455 GB, free: 7.32 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004782/1.313, allocations: 103.9 kB / 1.455 GB, free: 7.219 MB / 1.139 GB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.004048/1.317, allocations: 1.683 MB / 1.457 GB, free: 5.531 MB / 1.139 GB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.00283/1.32, allocations: 1.735 MB / 1.459 GB, free: 3.434 MB / 1.139 GB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.00423/1.324, allocations: 2.406 MB / 1.461 GB, free: 0.8047 MB / 1.139 GB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 2.037e-05/1.324, allocations: 4 kB / 1.461 GB, free: 0.8008 MB / 1.139 GB Notification: Performance of matching and sorting (n=250) (initialization_lambda0): time 0.007415/1.332, allocations: 3.422 MB / 1.464 GB, free: 13.33 MB / 1.154 GB Notification: Performance of prepare postOptimizeDAE: time 6.045e-05/1.332, allocations: 41.69 kB / 1.464 GB, free: 13.29 MB / 1.154 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 3.011e-05/1.332, allocations: 19.94 kB / 1.464 GB, free: 13.27 MB / 1.154 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.001073/1.333, allocations: 477.8 kB / 1.465 GB, free: 12.79 MB / 1.154 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00153/1.334, allocations: 365.2 kB / 1.465 GB, free: 12.43 MB / 1.154 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.008209/1.343, allocations: 6.335 MB / 1.471 GB, free: 5.809 MB / 1.154 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.003234/1.346, allocations: 140.9 kB / 1.472 GB, free: 5.672 MB / 1.154 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0004349/1.346, allocations: 95.95 kB / 1.472 GB, free: 5.578 MB / 1.154 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 70 * Number of states: 0 () * Number of discrete variables: 8 (pulse.count,$PRE.pulse.count,pulse.T_start,$PRE.pulse.T_start,$whenCondition1,from_dp.y,nRes.y,allowFlowReversal.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (170): * Single equations (assignments): 165 * Array equations: 1 * Algorithm blocks: 1 * Record equations: 1 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(1,40), (2,5)} Notification: Performance of prepare postOptimizeDAE: time 0.0008402/1.347, allocations: 305.4 kB / 1.472 GB, free: 5.273 MB / 1.154 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.001241/1.348, allocations: 349.7 kB / 1.472 GB, free: 4.93 MB / 1.154 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.006731/1.355, allocations: 2.615 MB / 1.475 GB, free: 2.293 MB / 1.154 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.609e-05/1.355, allocations: 16 kB / 1.475 GB, free: 2.277 MB / 1.154 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.645e-06/1.355, allocations: 3.938 kB / 1.475 GB, free: 2.273 MB / 1.154 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.004125/1.359, allocations: 2.179 MB / 1.477 GB, free: 16 kB / 1.154 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.01141/1.371, allocations: 4.811 MB / 1.482 GB, free: 11.13 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.476e-06/1.371, allocations: 0 / 1.482 GB, free: 11.13 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.001019/1.372, allocations: 173.6 kB / 1.482 GB, free: 10.96 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.001198/1.373, allocations: 485.3 kB / 1.482 GB, free: 10.48 MB / 1.17 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001149/1.373, allocations: 31.98 kB / 1.482 GB, free: 10.45 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001954/1.375, allocations: 1.85 MB / 1.484 GB, free: 8.543 MB / 1.17 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 6.773e-06/1.375, allocations: 8.016 kB / 1.484 GB, free: 8.535 MB / 1.17 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.007137/1.382, allocations: 3.381 MB / 1.487 GB, free: 5.121 MB / 1.17 GB Notification: Performance of postOpt removeConstants (simulation): time 0.001999/1.384, allocations: 0.5532 MB / 1.488 GB, free: 4.547 MB / 1.17 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0011/1.385, allocations: 24 kB / 1.488 GB, free: 4.523 MB / 1.17 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002077/1.387, allocations: 87.81 kB / 1.488 GB, free: 4.438 MB / 1.17 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0002195/1.387, allocations: 80.89 kB / 1.488 GB, free: 4.359 MB / 1.17 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0001408/1.388, allocations: 43.97 kB / 1.488 GB, free: 4.316 MB / 1.17 GB Notification: Performance of sorting global known variables: time 0.005425/1.393, allocations: 2.355 MB / 1.491 GB, free: 1.949 MB / 1.17 GB Notification: Performance of sort global known variables: time 1e-07/1.393, allocations: 0 / 1.491 GB, free: 1.949 MB / 1.17 GB Notification: Performance of remove unused functions: time 0.00711/1.4, allocations: 1.537 MB / 1.492 GB, free: 420 kB / 1.17 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 2 (pump.vol.dynBal.U,hea.outCon.T) * Number of discrete variables: 3 ($whenCondition1,pulse.T_start,pulse.count) * Number of discrete states: 1 (pulse.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (79): * Single equations (assignments): 71 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 4 * When equations: 2 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 2 systems {(2,5), (1,40)} Notification: Performance of Backend phase and start with SimCode phase: time 0.002107/1.402, allocations: 0.6056 MB / 1.493 GB, free: 15.8 MB / 1.186 GB Notification: Performance of simCode: created initialization part: time 0.008807/1.411, allocations: 3.755 MB / 1.496 GB, free: 12 MB / 1.186 GB Notification: Performance of simCode: created event and clocks part: time 1.022e-05/1.411, allocations: 4.062 kB / 1.496 GB, free: 11.99 MB / 1.186 GB Notification: Performance of simCode: created simulation system equations: time 0.002203/1.413, allocations: 0.7838 MB / 1.497 GB, free: 11.21 MB / 1.186 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.01135/1.425, allocations: 1.465 MB / 1.498 GB, free: 9.766 MB / 1.186 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.01607/1.441, allocations: 6.127 MB / 1.504 GB, free: 3.602 MB / 1.186 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.003473/1.444, allocations: 2.241 MB / 1.507 GB, free: 1.328 MB / 1.186 GB Notification: Performance of simCode: alias equations: time 0.004022/1.448, allocations: 0.8618 MB / 1.507 GB, free: 472 kB / 1.186 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001031/1.449, allocations: 247.3 kB / 1.508 GB, free: 224 kB / 1.186 GB Notification: Performance of SimCode: time 1.333e-06/1.449, allocations: 0 / 1.508 GB, free: 224 kB / 1.186 GB Notification: Performance of Templates: time 0.1185/1.568, allocations: 63.5 MB / 1.57 GB, free: 1.547 MB / 1.248 GB " [Timeout remaining time 298] make -j1 -f Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.makefile [Timeout 300] (rm -f Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.pipe ; mkfifo Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.pipe >> ../files/Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.sim & ./Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1 -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.pipe 2>&1) [Timeout 400] diffSimulationResults("Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_Examples_Performance_Example1v1.csv","/var/lib/jenkins/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.Examples.Performance.Example1v1.diff",relTol=0.003,relTolDiffMinMax=0.003,rangeDelta=0.001) [Timeout 300] "" [Timeout remaining time 300] Reference file matches [Calling sys.exit(0), Time elapsed: 11.6362832672894]