Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries --ompython_omhome=/usr OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.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 0.001095/0.001095, allocations: 93.06 kB / 19.65 MB, free: 280 kB / 13.93 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 0.9478/0.9478, allocations: 177.2 MB / 200 MB, free: 5.547 MB / 186.7 MB " [Timeout remaining time 179] 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 0.001882/0.001882, allocations: 168.6 kB / 256.6 MB, free: 13.01 MB / 250.7 MB " [Timeout remaining time 180] loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0/package.mo", uses=false) [Timeout 180] "Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0/package.mo): time 0.3184/0.3184, allocations: 80.24 MB / 393.4 MB, free: 3.344 MB / 362.7 MB " [Timeout remaining time 179] Using package OpenIPSL with version 3.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/OpenIPSL 3.1.0/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 Modelica with version 4.1.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 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(OpenIPSL.Tests.Banks.PSSE.CSVGN1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1") translateModel(OpenIPSL.Tests.Banks.PSSE.CSVGN1,tolerance=1e-06,outputFormat="empty",numberOfIntervals=2500,variableFilter="",fileNamePrefix="OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1") [Timeout 660] "Notification: Performance of FrontEnd - loaded program: time 2.013e-06/2.013e-06, allocations: 0 / 489.8 MB, free: 63.21 MB / 410.7 MB Notification: Performance of FrontEnd - Absyn->SCode: time 2.992e-05/3.193e-05, allocations: 4.703 kB / 489.8 MB, free: 63.2 MB / 410.7 MB Notification: Performance of NFInst.instantiate(OpenIPSL.Tests.Banks.PSSE.CSVGN1): time 0.008872/0.008904, allocations: 8.194 MB / 498 MB, free: 54.98 MB / 410.7 MB Notification: Performance of NFInst.instExpressions: time 0.004922/0.01383, allocations: 2.694 MB / 0.4889 GB, free: 52.3 MB / 410.7 MB Notification: Performance of NFInst.updateImplicitVariability: time 0.001279/0.01511, allocations: 15.94 kB / 0.489 GB, free: 52.29 MB / 410.7 MB Notification: Performance of NFTyping.typeComponents: time 0.0009995/0.0161, allocations: 345 kB / 0.4893 GB, free: 51.95 MB / 410.7 MB Notification: Performance of NFTyping.typeBindings: time 0.00242/0.01853, allocations: 1.137 MB / 0.4904 GB, free: 50.81 MB / 410.7 MB Notification: Performance of NFTyping.typeClassSections: time 0.001442/0.01997, allocations: 0.9182 MB / 0.4913 GB, free: 49.91 MB / 410.7 MB Notification: Performance of NFFlatten.flatten: time 0.002186/0.02215, allocations: 2.399 MB / 0.4936 GB, free: 47.5 MB / 410.7 MB Notification: Performance of NFFlatten.resolveConnections: time 0.0004378/0.02259, allocations: 301.8 kB / 0.4939 GB, free: 47.17 MB / 410.7 MB Notification: Performance of NFEvalConstants.evaluate: time 0.00147/0.02406, allocations: 1.341 MB / 0.4952 GB, free: 45.83 MB / 410.7 MB Notification: Performance of NFSimplifyModel.simplify: time 0.0009804/0.02504, allocations: 0.9903 MB / 0.4962 GB, free: 44.84 MB / 410.7 MB Notification: Performance of NFPackage.collectConstants: time 0.0003113/0.02535, allocations: 196 kB / 0.4964 GB, free: 44.64 MB / 410.7 MB Notification: Performance of NFFlatten.collectFunctions: time 0.0006964/0.02605, allocations: 373.4 kB / 0.4967 GB, free: 44.28 MB / 410.7 MB Notification: Performance of NFScalarize.scalarize: time 0.0002464/0.0263, allocations: 0.4941 MB / 0.4972 GB, free: 43.79 MB / 410.7 MB Notification: Performance of NFVerifyModel.verify: time 0.0004396/0.02674, allocations: 0.662 MB / 0.4979 GB, free: 43.12 MB / 410.7 MB Notification: Performance of NFConvertDAE.convert: time 0.001712/0.02845, allocations: 1.743 MB / 0.4996 GB, free: 41.37 MB / 410.7 MB Notification: Performance of FrontEnd - DAE generated: time 7.734e-06/0.02845, allocations: 0.875 kB / 0.4996 GB, free: 41.37 MB / 410.7 MB Notification: Performance of FrontEnd: time 2.796e-06/0.02846, allocations: 0 / 0.4996 GB, free: 41.37 MB / 410.7 MB Notification: Performance of Transformations before backend: time 4.007e-05/0.0285, allocations: 0 / 0.4996 GB, free: 41.37 MB / 410.7 MB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 262 * Number of variables: 262 Notification: Performance of Generate backend data structure: time 0.006778/0.03528, allocations: 4.068 MB / 0.5036 GB, free: 37.3 MB / 410.7 MB Notification: Performance of prepare preOptimizeDAE: time 4.144e-05/0.03532, allocations: 8.031 kB / 0.5036 GB, free: 37.29 MB / 410.7 MB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.002514/0.03783, allocations: 0.9323 MB / 0.5045 GB, free: 36.37 MB / 410.7 MB Notification: Performance of preOpt evaluateParameters (simulation): time 0.001513/0.03934, allocations: 1.101 MB / 0.5055 GB, free: 35.23 MB / 410.7 MB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.000291/0.03963, allocations: 0.575 MB / 0.5061 GB, free: 34.55 MB / 410.7 MB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0001664/0.0398, allocations: 116 kB / 0.5062 GB, free: 34.44 MB / 410.7 MB Notification: Performance of preOpt clockPartitioning (simulation): time 0.001459/0.04126, allocations: 1.037 MB / 0.5072 GB, free: 33.34 MB / 410.7 MB Notification: Performance of preOpt findStateOrder (simulation): time 2.117e-05/0.04128, allocations: 7.938 kB / 0.5072 GB, free: 33.33 MB / 410.7 MB Notification: Performance of preOpt replaceEdgeChange (simulation): time 8.771e-05/0.04137, allocations: 44.84 kB / 0.5073 GB, free: 33.29 MB / 410.7 MB Notification: Performance of preOpt inlineArrayEqn (simulation): time 1.745e-05/0.04139, allocations: 24 kB / 0.5073 GB, free: 33.27 MB / 410.7 MB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.001088/0.04247, allocations: 0.6611 MB / 0.5079 GB, free: 32.59 MB / 410.7 MB 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 0.004533/0.04701, allocations: 3.67 MB / 0.5115 GB, free: 28.87 MB / 410.7 MB Notification: Performance of preOpt comSubExp (simulation): time 0.002677/0.04968, allocations: 1.523 MB / 0.513 GB, free: 27.34 MB / 410.7 MB Notification: Performance of preOpt resolveLoops (simulation): time 0.0005445/0.05023, allocations: 443.1 kB / 0.5134 GB, free: 26.9 MB / 410.7 MB Notification: Performance of preOpt evalFunc (simulation): time 9.779e-05/0.05033, allocations: 29.28 kB / 0.5135 GB, free: 26.87 MB / 410.7 MB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.0007643/0.05109, allocations: 0.6703 MB / 0.5141 GB, free: 26.18 MB / 410.7 MB Notification: Performance of pre-optimization done (n=138): time 3.847e-06/0.0511, allocations: 0 / 0.5141 GB, free: 26.18 MB / 410.7 MB Notification: Performance of matching and sorting (n=138): time 0.02198/0.07308, allocations: 9.558 MB / 0.5235 GB, free: 16.59 MB / 410.7 MB Notification: Performance of inlineWhenForInitialization (initialization): time 4.895e-05/0.07313, allocations: 116.1 kB / 0.5236 GB, free: 16.46 MB / 410.7 MB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.001323/0.07445, allocations: 1.307 MB / 0.5248 GB, free: 15.12 MB / 410.7 MB Notification: Performance of collectPreVariables (initialization): time 0.0001968/0.07465, allocations: 53.7 kB / 0.5249 GB, free: 15.07 MB / 410.7 MB Notification: Performance of collectInitialEqns (initialization): time 0.0003571/0.075, allocations: 0.7066 MB / 0.5256 GB, free: 14.36 MB / 410.7 MB Notification: Performance of collectInitialBindings (initialization): time 0.0004148/0.07542, allocations: 0.5035 MB / 0.5261 GB, free: 13.85 MB / 410.7 MB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0004198/0.07584, allocations: 349.1 kB / 0.5264 GB, free: 13.5 MB / 410.7 MB Notification: Performance of setup shared object (initialization): time 5.691e-05/0.07589, allocations: 484.7 kB / 0.5269 GB, free: 13.02 MB / 410.7 MB Notification: Performance of preBalanceInitialSystem (initialization): time 0.000703/0.0766, allocations: 463.4 kB / 0.5273 GB, free: 12.56 MB / 410.7 MB Notification: Performance of partitionIndependentBlocks (initialization): time 0.0007564/0.07735, allocations: 0.7321 MB / 0.528 GB, free: 11.75 MB / 410.7 MB Notification: Performance of analyzeInitialSystem (initialization): time 0.001419/0.07877, allocations: 1.263 MB / 0.5293 GB, free: 10.42 MB / 410.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization): time 1.083e-05/0.07878, allocations: 4 kB / 0.5293 GB, free: 10.41 MB / 410.7 MB Notification: Performance of matching and sorting (n=237) (initialization): time 0.003821/0.0826, allocations: 2.43 MB / 0.5316 GB, free: 7.969 MB / 410.7 MB Notification: Performance of prepare postOptimizeDAE: time 2.578e-05/0.08263, allocations: 8 kB / 0.5316 GB, free: 7.961 MB / 410.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 1.302e-05/0.08264, allocations: 4 kB / 0.5317 GB, free: 7.957 MB / 410.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.003867/0.08651, allocations: 2.076 MB / 0.5337 GB, free: 5.875 MB / 410.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006699/0.08718, allocations: 279.6 kB / 0.5339 GB, free: 5.602 MB / 410.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002373/0.08955, allocations: 1.967 MB / 0.5359 GB, free: 3.605 MB / 410.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001127/0.09068, allocations: 226.7 kB / 0.5361 GB, free: 3.383 MB / 410.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001/0.09078, allocations: 63.97 kB / 0.5361 GB, free: 3.32 MB / 410.7 MB Notification: Performance of preBalanceInitialSystem (initialization_lambda0): time 0.0009213/0.0917, allocations: 0.5924 MB / 0.5367 GB, free: 2.723 MB / 410.7 MB Notification: Performance of partitionIndependentBlocks (initialization_lambda0): time 0.000721/0.09242, allocations: 0.7321 MB / 0.5374 GB, free: 1.91 MB / 410.7 MB Notification: Performance of analyzeInitialSystem (initialization_lambda0): time 0.001338/0.09376, allocations: 1.259 MB / 0.5387 GB, free: 0.5781 MB / 410.7 MB Notification: Performance of solveInitialSystemEqSystem (initialization_lambda0): time 5.671e-06/0.09377, allocations: 0 / 0.5387 GB, free: 0.5781 MB / 410.7 MB Notification: Performance of matching and sorting (n=237) (initialization_lambda0): time 0.004004/0.09777, allocations: 2.422 MB / 0.541 GB, free: 14.14 MB / 426.7 MB Notification: Performance of prepare postOptimizeDAE: time 2.052e-05/0.09779, allocations: 4 kB / 0.541 GB, free: 14.14 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 8.506e-06/0.0978, allocations: 7.984 kB / 0.541 GB, free: 14.13 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (initialization): time 0.004095/0.1019, allocations: 2.076 MB / 0.5431 GB, free: 12.05 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.0006839/0.1026, allocations: 271.6 kB / 0.5433 GB, free: 11.78 MB / 426.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 0.002683/0.1053, allocations: 1.951 MB / 0.5452 GB, free: 9.793 MB / 426.7 MB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001284/0.1065, allocations: 199 kB / 0.5454 GB, free: 9.598 MB / 426.7 MB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001051/0.1066, allocations: 63.98 kB / 0.5455 GB, free: 9.535 MB / 426.7 MB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 17 * Number of states: 0 () * Number of discrete variables: 3 ($whenCondition2,$whenCondition1,cSVGN1.leadLagLim.integrator.local_reset) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (163): * Single equations (assignments): 162 * 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 {(30,45)} Notification: Performance of prepare postOptimizeDAE: time 0.0003973/0.107, allocations: 347.8 kB / 0.5458 GB, free: 9.188 MB / 426.7 MB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0003164/0.1074, allocations: 222.9 kB / 0.546 GB, free: 8.969 MB / 426.7 MB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.007025/0.1144, allocations: 3.418 MB / 0.5494 GB, free: 5.523 MB / 426.7 MB Notification: Performance of postOpt inlineArrayEqn (simulation): time 1.647e-05/0.1144, allocations: 20 kB / 0.5494 GB, free: 5.504 MB / 426.7 MB Notification: Performance of postOpt constantLinearSystem (simulation): time 8.176e-06/0.1144, allocations: 0 / 0.5494 GB, free: 5.504 MB / 426.7 MB Notification: Performance of postOpt simplifysemiLinear (simulation): time 1.38e-05/0.1144, allocations: 7.969 kB / 0.5494 GB, free: 5.496 MB / 426.7 MB Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.008398/0.1228, allocations: 4.626 MB / 0.5539 GB, free: 0.8086 MB / 426.7 MB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 8.175e-06/0.1228, allocations: 4 kB / 0.5539 GB, free: 0.8047 MB / 426.7 MB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0004121/0.1232, allocations: 131.8 kB / 0.554 GB, free: 0.6758 MB / 426.7 MB Notification: Performance of postOpt tearingSystem (simulation): time 0.007365/0.1306, allocations: 2.627 MB / 0.5566 GB, free: 14.04 MB / 442.7 MB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 0.0001836/0.1308, allocations: 23.98 kB / 0.5566 GB, free: 14.02 MB / 442.7 MB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.01106/0.1419, allocations: 6.422 MB / 0.5629 GB, free: 7.461 MB / 442.7 MB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.406e-06/0.1419, allocations: 7.969 kB / 0.5629 GB, free: 7.453 MB / 442.7 MB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.008046/0.1499, allocations: 3.945 MB / 0.5668 GB, free: 3.469 MB / 442.7 MB Notification: Performance of postOpt removeConstants (simulation): time 0.00052/0.1504, allocations: 210.4 kB / 0.567 GB, free: 3.262 MB / 442.7 MB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001993/0.1506, allocations: 39.86 kB / 0.567 GB, free: 3.223 MB / 442.7 MB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.0007155/0.1513, allocations: 103.9 kB / 0.5671 GB, free: 3.121 MB / 442.7 MB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0006016/0.1519, allocations: 269.4 kB / 0.5674 GB, free: 2.859 MB / 442.7 MB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 7.7e-05/0.152, allocations: 43.98 kB / 0.5674 GB, free: 2.816 MB / 442.7 MB Notification: Performance of sorting global known variables: time 0.00087/0.1529, allocations: 0.8148 MB / 0.5682 GB, free: 2.004 MB / 442.7 MB Notification: Performance of sort global known variables: time 6e-08/0.1529, allocations: 4 kB / 0.5682 GB, free: 2 MB / 442.7 MB Notification: Performance of remove unused functions: time 0.001735/0.1546, allocations: 0.8935 MB / 0.5691 GB, free: 1.105 MB / 442.7 MB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 2 * Number of states: 11 (gENCLS.omega,gENCLS.delta,gENCLS.eq,gENSAL.w,gENSAL.delta,gENSAL.Epq,gENSAL.PSIkd,gENSAL.PSIppq,cSVGN1.LagLim.state,cSVGN1.leadLag.TF.x_scaled[1],cSVGN1.leadLagLim.integrator.y) * Number of discrete variables: 2 ($whenCondition1,$whenCondition2) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (76): * Single equations (assignments): 75 * 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 {(28,40)} Notification: Performance of Backend phase and start with SimCode phase: time 0.0003494/0.155, allocations: 155 kB / 0.5692 GB, free: 0.9414 MB / 442.7 MB Notification: Performance of simCode: created initialization part: time 0.006777/0.1617, allocations: 3.184 MB / 0.5723 GB, free: 13.75 MB / 458.7 MB Notification: Performance of simCode: created event and clocks part: time 4.95e-06/0.1618, allocations: 0 / 0.5723 GB, free: 13.75 MB / 458.7 MB Notification: Performance of simCode: created simulation system equations: time 0.002987/0.1647, allocations: 1.586 MB / 0.5739 GB, free: 12.14 MB / 458.7 MB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.0009662/0.1657, allocations: 191.2 kB / 0.5741 GB, free: 11.96 MB / 458.7 MB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.004194/0.1699, allocations: 2.782 MB / 0.5768 GB, free: 9.133 MB / 458.7 MB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.0005144/0.1704, allocations: 305.6 kB / 0.5771 GB, free: 8.812 MB / 458.7 MB Notification: Performance of simCode: alias equations: time 0.0004438/0.1709, allocations: 162.5 kB / 0.5772 GB, free: 8.648 MB / 458.7 MB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0002368/0.1711, allocations: 96.48 kB / 0.5773 GB, free: 8.555 MB / 458.7 MB Notification: Performance of SimCode: time 2.274e-06/0.1711, allocations: 0 / 0.5773 GB, free: 8.555 MB / 458.7 MB Notification: Performance of Templates: time 0.2165/0.3876, allocations: 41.55 MB / 0.6179 GB, free: 131.7 MB / 490.7 MB " [Timeout remaining time 660] make -j1 -f OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.makefile [Timeout 660] (rm -f OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.pipe ; mkfifo OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.pipe ; head -c 1048576 < OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.pipe >> ../files/OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.sim & ./OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1 -abortSlowSimulation -alarm=240 -lv LOG_STATS > OpenIPSL_OpenIPSL.Tests.Banks.PSSE.CSVGN1.pipe 2>&1) [Timeout 240] [Calling os._exit(0), Time elapsed: 4.521039113868028]