
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:26:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo249.22.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/grafo249.22.lp
Reading time = 0.31 seconds
: 178906 rows, 894 columns, 537369 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 178906 rows, 894 columns and 537369 nonzeros
Model fingerprint: 0x61b3432d
Variable types: 27 continuous, 867 integer (867 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]
Found heuristic solution: objective -0.0000000
Presolve removed 90868 rows and 2 columns
Presolve time: 1.34s
Presolved: 88038 rows, 892 columns, 264958 nonzeros
Variable types: 0 continuous, 892 integer (865 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 885 rows, 88923 columns, 265850 nonzeros


Root relaxation: objective 2.900000e+01, 1382 iterations, 0.73 seconds (0.99 work units)
Total elapsed time = 5.09s (DegenMoves)

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

     0     0   29.00000    0  313    8.00000   29.00000   262%     -    7s
     0     0   29.00000    0  431    8.00000   29.00000   262%     -   13s
     0     0   29.00000    0  377    8.00000   29.00000   262%     -   14s
     0     0   29.00000    0  414    8.00000   29.00000   262%     -   27s
     0     0   29.00000    0  377    8.00000   29.00000   262%     -   28s
     0     0   29.00000    0  274    8.00000   29.00000   262%     -   36s
     0     0   29.00000    0  267    8.00000   29.00000   262%     -   37s
     0     0   29.00000    0  282    8.00000   29.00000   262%     -   48s
     0     0   29.00000    0  246    8.00000   29.00000   262%     -   49s

Cutting planes:
  Cover: 40
  Clique: 32
  MIR: 63
  StrongCG: 1
  GUB cover: 1
  Zero half: 1
  RLT: 14
  BQP: 4

Explored 1 nodes (26004 simplex iterations) in 50.04 seconds (59.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 2.900000000000e+01, gap 262.5000%

Wrote result file './lp_solutions/grafo249.22.sol'

