Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.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 0.001166/0.001166, allocations: 109 kB / 17.54 MB, free: 4.746 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 0.00113/0.00113, allocations: 185.9 kB / 20.71 MB, free: 1.586 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 1.281/1.281, allocations: 225.6 MB / 249.3 MB, free: 3.16 MB / 190.1 MB " [Timeout remaining time 179] 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 2.483/2.483, allocations: 476.7 MB / 0.7628 GB, free: 15.31 MB / 0.6075 GB " [Timeout remaining time 177] 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: "" <> buildModelFMU(Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez,fileNamePrefix="Buildings_11_Buildings_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez",fmuType="me",version="2.0",platforms={"static"}) "" <> buildModelFMU(Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez,fileNamePrefix="Buildings_11_Buildings_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez",fmuType="me",version="2.0",platforms={"static"}) [Timeout 300] "Notification: Performance of FrontEnd - loaded program: time 0.001771/0.001771, allocations: 67.88 kB / 1.107 GB, free: 5.195 MB / 0.8419 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.7336/0.7354, allocations: 168.7 MB / 1.271 GB, free: 7.715 MB / 0.9981 GB Notification: Performance of NFInst.instantiate(Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez): time 0.007507/0.7429, allocations: 8.473 MB / 1.28 GB, free: 1.605 MB / 0.9981 GB Notification: Performance of NFInst.instExpressions: time 0.1676/0.9105, allocations: 152.4 MB / 1.428 GB, free: 15.88 MB / 1.123 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.001515/0.912, allocations: 24.22 kB / 1.428 GB, free: 15.87 MB / 1.123 GB Notification: Performance of NFTyping.typeComponents: time 0.0009114/0.9129, allocations: 326.3 kB / 1.429 GB, free: 15.58 MB / 1.123 GB Notification: Performance of NFTyping.typeBindings: time 0.002697/0.9156, allocations: 0.8577 MB / 1.43 GB, free: 14.89 MB / 1.123 GB Notification: Performance of NFTyping.typeClassSections: time 0.002988/0.9186, allocations: 1.411 MB / 1.431 GB, free: 13.76 MB / 1.123 GB Notification: Performance of NFFlatten.flatten: time 0.003533/0.9222, allocations: 2.993 MB / 1.434 GB, free: 11.91 MB / 1.123 GB Notification: Performance of NFFlatten.resolveConnections: time 0.001543/0.9237, allocations: 0.9996 MB / 1.435 GB, free: 11.17 MB / 1.123 GB Notification: Performance of NFEvalConstants.evaluate: time 0.001859/0.9256, allocations: 1.204 MB / 1.436 GB, free: 10.43 MB / 1.123 GB Notification: Performance of NFSimplifyModel.simplify: time 0.00174/0.9273, allocations: 1.354 MB / 1.437 GB, free: 9.445 MB / 1.123 GB Notification: Performance of NFPackage.collectConstants: time 0.0003958/0.9277, allocations: 324.8 kB / 1.438 GB, free: 9.445 MB / 1.123 GB Notification: Performance of NFFlatten.collectFunctions: time 0.001283/0.929, allocations: 0.7037 MB / 1.438 GB, free: 9.25 MB / 1.123 GB Notification: Performance of NFScalarize.scalarize: time 0.0005939/0.9296, allocations: 0.6947 MB / 1.439 GB, free: 8.656 MB / 1.123 GB Notification: Performance of NFVerifyModel.verify: time 0.001241/0.9308, allocations: 1.344 MB / 1.44 GB, free: 7.5 MB / 1.123 GB Notification: Performance of NFConvertDAE.convert: time 0.003784/0.9346, allocations: 3.682 MB / 1.444 GB, free: 3.805 MB / 1.123 GB Notification: Performance of FrontEnd - DAE generated: time 3.476e-06/0.9346, allocations: 0 / 1.444 GB, free: 3.805 MB / 1.123 GB Notification: Performance of FrontEnd: time 1.412e-06/0.9346, allocations: 0 / 1.444 GB, free: 3.805 MB / 1.123 GB Notification: Performance of Transformations before backend: time 3.574e-05/0.9346, allocations: 4 kB / 1.444 GB, free: 3.801 MB / 1.123 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 578 * Number of variables: 578 Notification: Performance of Generate backend data structure: time 0.005634/0.9403, allocations: 2.893 MB / 1.447 GB, free: 0.8281 MB / 1.123 GB Notification: Performance of prepare preOptimizeDAE: time 3.587e-05/0.9403, allocations: 8.031 kB / 1.447 GB, free: 0.8203 MB / 1.123 GB Notification: Performance of preOpt introduceOutputAliases (simulation): time 0.0003604/0.9407, allocations: 320.8 kB / 1.447 GB, free: 0.4961 MB / 1.123 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.01473/0.9554, allocations: 2.125 MB / 1.449 GB, free: 14.37 MB / 1.139 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.00236/0.9578, allocations: 1.302 MB / 1.45 GB, free: 13.02 MB / 1.139 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0001342/0.9579, allocations: 168.5 kB / 1.451 GB, free: 12.85 MB / 1.139 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0003752/0.9583, allocations: 216 kB / 1.451 GB, free: 12.64 MB / 1.139 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.007954/0.9662, allocations: 3.278 MB / 1.454 GB, free: 9.266 MB / 1.139 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.337e-05/0.9663, allocations: 4 kB / 1.454 GB, free: 9.262 MB / 1.139 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0002727/0.9665, allocations: 92 kB / 1.454 GB, free: 9.172 MB / 1.139 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.295e-05/0.9666, allocations: 56 kB / 1.454 GB, free: 9.117 MB / 1.139 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.01212/0.9787, allocations: 4.205 MB / 1.458 GB, free: 4.895 MB / 1.139 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 0.01559/0.9943, allocations: 8.052 MB / 1.466 GB, free: 12.57 MB / 1.154 GB Notification: Performance of preOpt comSubExp (simulation): time 0.008627/1.003, allocations: 2.696 MB / 1.469 GB, free: 9.863 MB / 1.154 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.004248/1.007, allocations: 1.356 MB / 1.47 GB, free: 8.504 MB / 1.154 GB Notification: Performance of preOpt evalFunc (simulation): time 0.0007514/1.008, allocations: 0.5035 MB / 1.471 GB, free: 7.91 MB / 1.154 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.00495/1.013, allocations: 1.851 MB / 1.472 GB, free: 6.039 MB / 1.154 GB Notification: Performance of pre-optimization done (n=213): time 3.647e-06/1.013, allocations: 0 / 1.472 GB, free: 6.039 MB / 1.154 GB Notification: Performance of matching and sorting (n=213): time 0.01482/1.028, allocations: 4.475 MB / 1.477 GB, free: 1.539 MB / 1.154 GB Notification: Performance of inlineWhenForInitialization (initialization): time 0.0001294/1.028, allocations: 205.9 kB / 1.477 GB, free: 1.293 MB / 1.154 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001316/1.029, allocations: 0.9452 MB / 1.478 GB, free: 336 kB / 1.154 GB Notification: Performance of collectPreVariables (initialization): time 0.0002382/1.029, allocations: 61.7 kB / 1.478 GB, free: 268 kB / 1.154 GB Notification: Performance of collectInitialEqns (initialization): time 0.0006274/1.03, allocations: 0.7679 MB / 1.479 GB, free: 15.48 MB / 1.17 GB Notification: Performance of collectInitialBindings (initialization): time 0.0006611/1.031, allocations: 0.7088 MB / 1.479 GB, free: 14.77 MB / 1.17 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.000713/1.031, allocations: 391.2 kB / 1.48 GB, free: 14.38 MB / 1.17 GB Notification: Performance of setup shared object (initialization): time 0.0001101/1.031, allocations: 305.1 kB / 1.48 GB, free: 14.08 MB / 1.17 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.00406/1.036, allocations: 1.237 MB / 1.481 GB, free: 12.84 MB / 1.17 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.004184/1.04, allocations: 1.437 MB / 1.483 GB, free: 11.37 MB / 1.17 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.008027/1.048, allocations: 2.587 MB / 1.485 GB, free: 8.762 MB / 1.17 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 4.508e-06/1.048, allocations: 0 / 1.485 GB, free: 8.762 MB / 1.17 GB Notification: Performance of matching and sorting (n=233) (initialization): time 0.00962/1.057, allocations: 3.086 MB / 1.488 GB, free: 5.664 MB / 1.17 GB Notification: Performance of prepare postOptimizeDAE: time 2.125e-05/1.057, allocations: 4 kB / 1.488 GB, free: 5.66 MB / 1.17 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.206e-05/1.057, allocations: 7.984 kB / 1.488 GB, free: 5.652 MB / 1.17 GB Notification: Performance of postOpt tearingSystem (initialization): time 0.0005579/1.058, allocations: 84.83 kB / 1.488 GB, free: 5.566 MB / 1.17 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.003502/1.061, allocations: 0.589 MB / 1.489 GB, free: 4.977 MB / 1.17 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002097/1.064, allocations: 1.643 MB / 1.491 GB, free: 3.188 MB / 1.17 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.002861/1.066, allocations: 366.5 kB / 1.491 GB, free: 2.828 MB / 1.17 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0002115/1.067, allocations: 95.89 kB / 1.491 GB, free: 2.734 MB / 1.17 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 7 * Number of states: 0 () * Number of discrete variables: 24 (HDifWal.incAng.decAng.tNext,$PRE.HDifWal.incAng.decAng.tNext,HDifFlo.incAng.decAng.tNext,$PRE.HDifFlo.incAng.decAng.tNext,HDifRoo.incAng.decAng.tNext,$PRE.HDifRoo.incAng.decAng.tNext,weaDat.decAng.tNext,$PRE.weaDat.decAng.tNext,weaDat.eqnTim.tNext,$PRE.weaDat.eqnTim.tNext,weaDat.conTim.tNext,$PRE.weaDat.conTim.tNext,weaDat.conTimMin.tNext,$PRE.weaDat.conTimMin.tNext,weaDat.locTim.tNext,$PRE.weaDat.locTim.tNext,$whenCondition1,$whenCondition2,$whenCondition3,$whenCondition4,$whenCondition5,$whenCondition6,$whenCondition7,$whenCondition8) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (231): * Single equations (assignments): 230 * Array equations: 0 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,2)} Notification: Performance of prepare postOptimizeDAE: time 0.000923/1.068, allocations: 439.8 kB / 1.491 GB, free: 2.297 MB / 1.17 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0004061/1.068, allocations: 163 kB / 1.492 GB, free: 2.137 MB / 1.17 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.01096/1.079, allocations: 3.716 MB / 1.495 GB, free: 14.4 MB / 1.186 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.811e-05/1.079, allocations: 20 kB / 1.495 GB, free: 14.38 MB / 1.186 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 7.064e-06/1.079, allocations: 3.984 kB / 1.495 GB, free: 14.38 MB / 1.186 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 2.019e-05/1.079, allocations: 15.95 kB / 1.495 GB, free: 14.36 MB / 1.186 GB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.002995/1.082, allocations: 2.464 MB / 1.498 GB, free: 11.86 MB / 1.186 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.911e-06/1.082, allocations: 0 / 1.498 GB, free: 11.86 MB / 1.186 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.00332/1.085, allocations: 0.5578 MB / 1.498 GB, free: 11.3 MB / 1.186 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.000432/1.086, allocations: 80.78 kB / 1.498 GB, free: 11.21 MB / 1.186 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0002006/1.086, allocations: 75.91 kB / 1.498 GB, free: 11.14 MB / 1.186 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001884/1.088, allocations: 1.658 MB / 1.5 GB, free: 9.336 MB / 1.186 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.817e-06/1.088, allocations: 11.94 kB / 1.5 GB, free: 9.324 MB / 1.186 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.009783/1.098, allocations: 3.208 MB / 1.503 GB, free: 6.09 MB / 1.186 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0009625/1.099, allocations: 0.5616 MB / 1.504 GB, free: 5.508 MB / 1.186 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0002969/1.099, allocations: 55.89 kB / 1.504 GB, free: 5.453 MB / 1.186 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.002676/1.102, allocations: 264.4 kB / 1.504 GB, free: 5.195 MB / 1.186 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.000284/1.102, allocations: 153.7 kB / 1.504 GB, free: 5.047 MB / 1.186 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 0.0002068/1.102, allocations: 99.91 kB / 1.504 GB, free: 4.949 MB / 1.186 GB Notification: Performance of sorting global known variables: time 0.0009545/1.103, allocations: 0.6997 MB / 1.505 GB, free: 4.242 MB / 1.186 GB Notification: Performance of sort global known variables: time 8e-08/1.103, allocations: 0 / 1.505 GB, free: 4.242 MB / 1.186 GB Notification: Performance of remove unused functions: time 0.001638/1.105, allocations: 0.678 MB / 1.505 GB, free: 3.562 MB / 1.186 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 1 * Number of states: 0 () * Number of discrete variables: 16 ($whenCondition8,$whenCondition7,$whenCondition6,$whenCondition5,$whenCondition4,$whenCondition3,$whenCondition2,$whenCondition1,weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifRoo.incAng.decAng.tNext,HDifFlo.incAng.decAng.tNext,HDifWal.incAng.decAng.tNext) * Number of discrete states: 8 (weaDat.locTim.tNext,weaDat.conTimMin.tNext,weaDat.conTim.tNext,weaDat.eqnTim.tNext,weaDat.decAng.tNext,HDifRoo.incAng.decAng.tNext,HDifFlo.incAng.decAng.tNext,HDifWal.incAng.decAng.tNext) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (231): * Single equations (assignments): 222 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 0 * When equations: 8 * 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): 0 systems * Non-linear torn systems (#iteration vars, #inner vars): 1 system {(1,3)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0118/1.116, allocations: 4.333 MB / 1.51 GB, free: 15.38 MB / 1.201 GB Notification: Performance of simCode: created initialization part: time 0.0095/1.126, allocations: 3.01 MB / 1.513 GB, free: 12.36 MB / 1.201 GB Notification: Performance of simCode: created event and clocks part: time 4.829e-06/1.126, allocations: 0 / 1.513 GB, free: 12.36 MB / 1.201 GB Notification: Performance of simCode: created simulation system equations: time 0.004738/1.131, allocations: 1.622 MB / 1.514 GB, free: 10.73 MB / 1.201 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.001677/1.132, allocations: 397.2 kB / 1.515 GB, free: 10.36 MB / 1.201 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.03629/1.169, allocations: 15.9 MB / 1.53 GB, free: 10.25 MB / 1.217 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.00101/1.17, allocations: 1.425 MB / 1.532 GB, free: 8.785 MB / 1.217 GB Notification: Performance of simCode: alias equations: time 0.002394/1.172, allocations: 0.5835 MB / 1.532 GB, free: 8.195 MB / 1.217 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.001611/1.174, allocations: 0.8779 MB / 1.533 GB, free: 7.316 MB / 1.217 GB Notification: Performance of SimCode: time 8.92e-07/1.174, allocations: 0 / 1.533 GB, free: 7.316 MB / 1.217 GB Notification: Performance of buildModelFMU: Generate the FMI files: time 0.08235/1.256, allocations: 43.33 MB / 1.575 GB, free: 12.27 MB / 1.264 GB Notification: Performance of buildModelFMU: Generate platform static: time 13.17/14.43, allocations: 5.312 kB / 1.575 GB, free: 12.27 MB / 1.264 GB " [Timeout remaining time 285] (rm -f Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe ; mkfifo Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe ; head -c 1048576 < Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe >> ../files/Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.sim & /home/hudson/saved_omc/OMSimulator/install/bin/OMSimulator -r=Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez_res.mat --tempDir=temp_Buildings_11_Buildings_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez_fmu --startTime=1.82304e+07 --stopTime=1.83168e+07 --timeout=400 --tolerance=1e-06 Buildings_11_Buildings_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez.fmu > Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.pipe 2>&1) [Timeout 420.0] diffSimulationResults("Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez_res.mat","/mnt/ReferenceFiles/Buildings/csv/maint_11.x/Buildings_BoundaryConditions_SolarIrradiation_Examples_DiffusePerez.csv","/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelicaLibraryTesting/files/Buildings_11_Buildings.BoundaryConditions.SolarIrradiation.Examples.DiffusePerez.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: 19.913860290999764]