Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.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 0.00173/0.00173, allocations: 100.3 kB / 19.7 MB, free: 2.012 MB / 14.72 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 0.002114/0.002114, allocations: 220.6 kB / 23 MB, free: 4.918 MB / 14.72 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 1.474/1.474, allocations: 230.6 MB / 256.8 MB, free: 7.816 MB / 206.1 MB " [Timeout remaining time 178] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/package.mo): time 2.731/2.731, allocations: 476 MB / 0.7707 GB, free: 4.738 MB / 0.6231 GB " [Timeout remaining time 177] Using package Buildings with version 11.1.1 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.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.HeatPumps.ModularReversible.Validation.TableData2D,tolerance=1e-06,outputFormat="mat",numberOfIntervals=29232,variableFilter="time|TConOutMea|TConOutSim|PEleMea|PEleSim|TEvaOutMea|TEvaOutSim",fileNamePrefix="Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D") translateModel(Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D,tolerance=1e-06,outputFormat="mat",numberOfIntervals=29232,variableFilter="time|TConOutMea|TConOutSim|PEleMea|PEleSim|TEvaOutMea|TEvaOutSim",fileNamePrefix="Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D") [Timeout 300] "Notification: Buildings requested package Modelica of version 4.0.0. Modelica 4.1.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.002089/0.002089, allocations: 65.45 kB / 1.118 GB, free: 41.05 MB / 0.9044 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3419/0.3439, allocations: 170 MB / 1.284 GB, free: 11.89 MB / 0.9825 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D): time 0.08994/0.4339, allocations: 74.61 MB / 1.357 GB, free: 1.039 MB / 1.045 GB Notification: Performance of NFInst.instExpressions: time 0.03067/0.4645, allocations: 18.49 MB / 1.375 GB, free: 14.5 MB / 1.076 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.005099/0.4696, allocations: 134.9 kB / 1.375 GB, free: 14.36 MB / 1.076 GB Notification: Performance of NFTyping.typeComponents: time 0.004339/0.474, allocations: 1.309 MB / 1.376 GB, free: 13.05 MB / 1.076 GB Notification: Performance of NFTyping.typeBindings: time 0.009325/0.4833, allocations: 3.078 MB / 1.379 GB, free: 9.957 MB / 1.076 GB Notification: Performance of NFTyping.typeClassSections: time 0.00626/0.4896, allocations: 2.237 MB / 1.381 GB, free: 7.738 MB / 1.076 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/Fluid/HeatPumps/ModularReversible/Modular.mo:59:3-61:76:writable] Warning: Parameter heaPum.TConCoo_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=288.15) as default value. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/Fluid/HeatPumps/ModularReversible/Modular.mo:62:3-64:76:writable] Warning: Parameter heaPum.TEvaCoo_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=288.15) as default value. Notification: Performance of NFFlatten.flatten: time 0.009272/0.4988, allocations: 5.841 MB / 1.387 GB, free: 1.879 MB / 1.076 GB Notification: Performance of NFFlatten.resolveConnections: time 0.003815/0.5027, allocations: 2.039 MB / 1.389 GB, free: 15.78 MB / 1.092 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005501/0.5082, allocations: 2.317 MB / 1.391 GB, free: 13.46 MB / 1.092 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003182/0.5113, allocations: 1.689 MB / 1.393 GB, free: 11.77 MB / 1.092 GB Notification: Performance of NFPackage.collectConstants: time 0.0005575/0.5119, allocations: 311.9 kB / 1.393 GB, free: 11.46 MB / 1.092 GB Notification: Performance of NFFlatten.collectFunctions: time 0.003787/0.5157, allocations: 1.482 MB / 1.395 GB, free: 9.977 MB / 1.092 GB Notification: Performance of NFScalarize.scalarize: time 0.001027/0.5167, allocations: 0.8019 MB / 1.395 GB, free: 9.172 MB / 1.092 GB Notification: Performance of NFVerifyModel.verify: time 0.001919/0.5186, allocations: 1.197 MB / 1.397 GB, free: 7.969 MB / 1.092 GB Notification: Performance of NFConvertDAE.convert: time 0.008575/0.5272, allocations: 5.22 MB / 1.402 GB, free: 2.73 MB / 1.092 GB Notification: Performance of FrontEnd - DAE generated: time 7.283e-06/0.5272, allocations: 0 / 1.402 GB, free: 2.73 MB / 1.092 GB Notification: Performance of FrontEnd: time 2.184e-06/0.5272, allocations: 4 kB / 1.402 GB, free: 2.727 MB / 1.092 GB Notification: Performance of Transformations before backend: time 0.0001046/0.5273, allocations: 0 / 1.402 GB, free: 2.727 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: 441 * Number of variables: 441 Notification: Performance of Generate backend data structure: time 0.006607/0.5339, allocations: 3.362 MB / 1.405 GB, free: 15.29 MB / 1.107 GB Notification: Performance of prepare preOptimizeDAE: time 4.313e-05/0.534, allocations: 8.031 kB / 1.405 GB, free: 15.28 MB / 1.107 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001202/0.5352, allocations: 409.8 kB / 1.405 GB, free: 14.88 MB / 1.107 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.004961/0.5401, allocations: 2.594 MB / 1.408 GB, free: 12.2 MB / 1.107 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001443/0.5403, allocations: 135.5 kB / 1.408 GB, free: 12.07 MB / 1.107 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003088/0.5406, allocations: 187.9 kB / 1.408 GB, free: 11.89 MB / 1.107 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.003817/0.5444, allocations: 2.096 MB / 1.41 GB, free: 9.664 MB / 1.107 GB Notification: Performance of preOpt findStateOrder (simulation): time 5.014e-05/0.5445, allocations: 7.922 kB / 1.41 GB, free: 9.656 MB / 1.107 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001484/0.5446, allocations: 72 kB / 1.41 GB, free: 9.586 MB / 1.107 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 5.578e-05/0.5447, allocations: 48 kB / 1.41 GB, free: 9.539 MB / 1.107 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002673/0.5473, allocations: 1.391 MB / 1.412 GB, free: 8.145 MB / 1.107 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 0.01001/0.5573, allocations: 6.075 MB / 1.418 GB, free: 1.898 MB / 1.107 GB Notification: Performance of preOpt comSubExp (simulation): time 0.00211/0.5594, allocations: 0.8238 MB / 1.419 GB, free: 1.062 MB / 1.107 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0006381/0.5601, allocations: 324 kB / 1.419 GB, free: 0.7461 MB / 1.107 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0003912/0.5605, allocations: 108.6 kB / 1.419 GB, free: 0.6406 MB / 1.107 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001035/0.5615, allocations: 0.561 MB / 1.419 GB, free: 28 kB / 1.107 GB Notification: Performance of pre-optimization done (n=66): time 3.597e-06/0.5615, allocations: 0 / 1.419 GB, free: 28 kB / 1.107 GB Notification: Performance of matching and sorting (n=66): time 0.002675/0.5642, allocations: 1.117 MB / 1.421 GB, free: 14.9 MB / 1.123 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001111/0.5643, allocations: 141.2 kB / 1.421 GB, free: 14.73 MB / 1.123 GB [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/Fluid/HeatPumps/ModularReversible/Modular.mo:62:3-64:76:writable] Warning: Parameter heaPum.TEvaCoo_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=288.15) as default value. [/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 11.1.1-maint.11.x/Fluid/HeatPumps/ModularReversible/Modular.mo:59:3-61:76:writable] Warning: Parameter heaPum.TConCoo_nominal has no value, and is fixed during initialization (fixed=true), using available start value (start=288.15) as default value. Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.003109/0.5674, allocations: 1.992 MB / 1.423 GB, free: 12.7 MB / 1.123 GB Notification: Performance of collectPreVariables (initialization): time 0.0001229/0.5675, allocations: 49.69 kB / 1.423 GB, free: 12.65 MB / 1.123 GB Notification: Performance of collectInitialEqns (initialization): time 0.001305/0.5688, allocations: 1.2 MB / 1.424 GB, free: 11.44 MB / 1.123 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002929/0.5691, allocations: 247.4 kB / 1.424 GB, free: 11.2 MB / 1.123 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004047/0.5695, allocations: 218.5 kB / 1.424 GB, free: 10.98 MB / 1.123 GB Notification: Performance of setup shared object (initialization): time 0.0001915/0.5697, allocations: 349.9 kB / 1.425 GB, free: 10.63 MB / 1.123 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0007168/0.5704, allocations: 353.8 kB / 1.425 GB, free: 10.28 MB / 1.123 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001329/0.5718, allocations: 1.086 MB / 1.426 GB, free: 8.965 MB / 1.123 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.001673/0.5734, allocations: 0.9599 MB / 1.427 GB, free: 7.906 MB / 1.123 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 9.297e-06/0.5735, allocations: 4 kB / 1.427 GB, free: 7.902 MB / 1.123 GB Notification: Performance of matching and sorting (n=118) (initialization): time 0.00253/0.576, allocations: 1.215 MB / 1.428 GB, free: 6.676 MB / 1.123 GB Notification: Performance of prepare postOptimizeDAE: time 2.622e-05/0.576, allocations: 10.34 kB / 1.428 GB, free: 6.668 MB / 1.123 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.446e-05/0.576, allocations: 11.94 kB / 1.428 GB, free: 6.656 MB / 1.123 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.937e-05/0.5761, allocations: 12 kB / 1.428 GB, free: 6.645 MB / 1.123 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0007316/0.5768, allocations: 220.2 kB / 1.428 GB, free: 6.43 MB / 1.123 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.379e-05/0.5768, allocations: 19.92 kB / 1.428 GB, free: 6.41 MB / 1.123 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001123/0.5779, allocations: 119.3 kB / 1.429 GB, free: 6.293 MB / 1.123 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 8.877e-05/0.578, allocations: 47.98 kB / 1.429 GB, free: 6.246 MB / 1.123 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 34 * Number of states: 0 () * Number of discrete variables: 10 ($PRE.tabMea.nextTimeEvent,$whenCondition1,heaPum.conHea.y,tabMea.nextTimeEventScaled,$PRE.tabMea.nextTimeEventScaled,tabMea.nextTimeEvent,heaPum.eff.hys.y,$PRE.heaPum.eff.hys.y,heaPum.hys.y,$PRE.heaPum.hys.y) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (118): * Single equations (assignments): 118 * 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 0.001202/0.5792, allocations: 0.5883 MB / 1.429 GB, free: 5.648 MB / 1.123 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003748/0.5796, allocations: 210.6 kB / 1.429 GB, free: 5.441 MB / 1.123 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002294/0.5819, allocations: 1.116 MB / 1.43 GB, free: 4.324 MB / 1.123 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.774e-05/0.5819, allocations: 8 kB / 1.43 GB, free: 4.316 MB / 1.123 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 6.462e-06/0.5819, allocations: 0 / 1.43 GB, free: 4.316 MB / 1.123 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.001601/0.5835, allocations: 0.8925 MB / 1.431 GB, free: 3.395 MB / 1.123 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.004859/0.5884, allocations: 2.551 MB / 1.434 GB, free: 0.7891 MB / 1.123 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.225e-06/0.5884, allocations: 4 kB / 1.434 GB, free: 0.7852 MB / 1.123 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0006272/0.589, allocations: 147.8 kB / 1.434 GB, free: 0.6406 MB / 1.123 GB Notification: Performance of postOpt tearingSystem (simulation): time 9.237e-06/0.589, allocations: 4 kB / 1.434 GB, free: 0.6367 MB / 1.123 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 6.543e-05/0.5891, allocations: 31.92 kB / 1.434 GB, free: 0.6055 MB / 1.123 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 7.624e-06/0.5891, allocations: 4 kB / 1.434 GB, free: 0.6016 MB / 1.123 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.617e-06/0.5891, allocations: 4 kB / 1.434 GB, free: 0.5977 MB / 1.123 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.002917/0.592, allocations: 1.594 MB / 1.436 GB, free: 14.96 MB / 1.139 GB Notification: Performance of postOpt removeConstants (simulation): time 0.000751/0.5928, allocations: 314.4 kB / 1.436 GB, free: 14.65 MB / 1.139 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0003041/0.5931, allocations: 31.92 kB / 1.436 GB, free: 14.62 MB / 1.139 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.000743/0.5938, allocations: 47.95 kB / 1.436 GB, free: 14.57 MB / 1.139 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001626/0.594, allocations: 64.53 kB / 1.436 GB, free: 14.51 MB / 1.139 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.185e-05/0.5941, allocations: 44.09 kB / 1.436 GB, free: 14.47 MB / 1.139 GB Notification: Performance of sorting global known variables: time 0.002157/0.5962, allocations: 1.342 MB / 1.437 GB, free: 13.11 MB / 1.139 GB Notification: Performance of sort global known variables: time 8e-08/0.5962, allocations: 0 / 1.437 GB, free: 13.11 MB / 1.139 GB Notification: Performance of remove unused functions: time 0.002019/0.5982, allocations: 0.697 MB / 1.438 GB, free: 12.41 MB / 1.139 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 7 * Number of states: 6 (heaPum.con.vol.dynBal.U,heaPum.eva.vol.dynBal.U,heaPum.refCycIneCon.criDam.x[1],heaPum.refCycIneCon.criDam.x[2],heaPum.refCycIneEva.criDam.x[1],heaPum.refCycIneEva.criDam.x[2]) * Number of discrete variables: 5 ($whenCondition1,heaPum.hys.y,heaPum.eff.hys.y,tabMea.nextTimeEvent,tabMea.nextTimeEventScaled) * Number of discrete states: 4 (tabMea.nextTimeEvent,tabMea.nextTimeEventScaled,heaPum.hys.y,heaPum.eff.hys.y) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (81): * Single equations (assignments): 73 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 6 * When equations: 2 * 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 0.003934/0.6022, allocations: 1.229 MB / 1.439 GB, free: 11.55 MB / 1.139 GB Notification: Performance of simCode: created initialization part: time 0.00194/0.6041, allocations: 0.8452 MB / 1.44 GB, free: 10.71 MB / 1.139 GB Notification: Performance of simCode: created event and clocks part: time 3.988e-06/0.6041, allocations: 0 / 1.44 GB, free: 10.71 MB / 1.139 GB Notification: Performance of simCode: created simulation system equations: time 0.0008165/0.6049, allocations: 416.4 kB / 1.44 GB, free: 10.3 MB / 1.139 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.003447/0.6084, allocations: 0.7839 MB / 1.441 GB, free: 9.539 MB / 1.139 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.007589/0.616, allocations: 4.089 MB / 1.445 GB, free: 5.383 MB / 1.139 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001277/0.6173, allocations: 1.03 MB / 1.446 GB, free: 4.316 MB / 1.139 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005961/0.6178, allocations: 183.3 kB / 1.446 GB, free: 4.137 MB / 1.139 GB Notification: Performance of SimCode: time 1.082e-06/0.6179, allocations: 0 / 1.446 GB, free: 4.137 MB / 1.139 GB Notification: Performance of Templates: time 0.06319/0.681, allocations: 37.45 MB / 1.483 GB, free: 14.86 MB / 1.186 GB " [Timeout remaining time 299] make -j1 -f Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.makefile [Timeout 300] (rm -f Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.pipe ; mkfifo Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.pipe ; head -c 1048576 < Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.pipe >> ../files/Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.sim & ./Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D -abortSlowSimulation -alarm=400 -emit_protected -lv LOG_STATS > Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.pipe 2>&1) [Timeout 400] diffSimulationResults("Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_Fluid_HeatPumps_ModularReversible_Validation_TableData2D.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.Fluid.HeatPumps.ModularReversible.Validation.TableData2D.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: 17.676156400237232]