
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:07:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7265.44.log"
Using license file /Users/sara/gurobi.lic
Academic license - for non-commercial use only - expires 2025-05-12

Gurobi Optimizer version 11.0.1 build v11.0.1rc0 (mac64[x86] - Darwin 21.6.0 21G651)
Copyright (c) 2024, Gurobi Optimization, LLC

Read LP format model from file ./lp_problems/grafo7265.44.lp
Reading time = 0.35 seconds
: 161584 rows, 2619 columns, 487008 nonzeros

CPU model: Intel(R) Core(TM) i5-1038NG7 CPU @ 2.00GHz
Thread count: 4 physical cores, 8 logical processors, using up to 8 threads

Optimize a model with 161584 rows, 2619 columns and 487008 nonzeros
Model fingerprint: 0xb9684eab
Variable types: 49 continuous, 2570 integer (2570 binary)
Coefficient statistics:
  Matrix range     [5e-01, 5e+01]
  Objective range  [1e+00, 1e+00]
  Bounds range     [1e+00, 1e+00]
  RHS range        [1e+00, 5e+01]
Presolve removed 54908 rows and 12 columns
Presolve time: 1.34s
Presolved: 106676 rows, 2607 columns, 322821 nonzeros
Variable types: 0 continuous, 2607 integer (2558 binary)
Root relaxation presolved: 2596 rows, 109272 columns, 325428 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13803    4.9687502e+01   0.000000e+00   9.382378e+04      5s
   31046    4.9636748e+01   0.000000e+00   6.086955e+04     10s
   47747    4.9625675e+01   0.000000e+00   6.565839e+03     15s
   64595    4.9622118e+01   0.000000e+00   2.741771e+02     20s
   70417    5.0000000e+01   0.000000e+00   0.000000e+00     22s
   70417    5.0000000e+01   0.000000e+00   0.000000e+00     22s
   70417    5.0000000e+01   0.000000e+00   0.000000e+00     22s

Root relaxation: objective 5.000000e+01, 70417 iterations, 20.22 seconds (13.61 work units)
Total elapsed time = 43.36s (DegenMoves)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   50.00000    0  813          -   50.00000      -     -   50s
H    0     0                       6.0000000   50.00000   733%     -   50s

Explored 1 nodes (87972 simplex iterations) in 50.06 seconds (43.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.000000000000e+01, gap 733.3333%

Wrote result file './lp_solutions/grafo7265.44.sol'

