
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:52:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6589.37.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/grafo6589.37.lp
Reading time = 0.10 seconds
: 58069 rows, 1779 columns, 175582 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 58069 rows, 1779 columns and 175582 nonzeros
Model fingerprint: 0x06c62fc6
Variable types: 41 continuous, 1738 integer (1738 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 3.0000000
Presolve removed 12498 rows and 29 columns
Presolve time: 0.40s
Presolved: 45571 rows, 1750 columns, 138505 nonzeros
Variable types: 0 continuous, 1750 integer (1709 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 27141 rows, 20180 columns, 101645 nonzeros


Root relaxation: objective 4.100000e+01, 1634 iterations, 0.50 seconds (0.45 work units)

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

     0     0   41.00000    0  354    7.00000   41.00000   486%     -    2s
H    0     0                       8.0000000   41.00000   412%     -    2s
H    0     0                      10.0000000   41.00000   310%     -    3s
H    0     0                      12.0000000   41.00000   242%     -    3s
     0     0   41.00000    0  556   12.00000   41.00000   242%     -    5s
H    0     0                      13.0000000   41.00000   215%     -    5s
     0     0   41.00000    0  519   13.00000   41.00000   215%     -    6s
H    0     0                      14.0000000   41.00000   193%     -   24s
H    0     0                      15.0000000   41.00000   173%     -   24s
H    0     0                      16.0000000   41.00000   156%     -   24s
     0     0   41.00000    0  538   16.00000   41.00000   156%     -   24s
     0     0   41.00000    0  464   16.00000   41.00000   156%     -   26s
H    0     0                      17.0000000   41.00000   141%     -   50s
     0     0   41.00000    0  544   17.00000   41.00000   141%     -   50s

Cutting planes:
  Cover: 1
  Clique: 2
  MIR: 22
  Zero half: 1
  RLT: 12

Explored 1 nodes (52669 simplex iterations) in 50.09 seconds (48.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 17 16 15 ... 3

Time limit reached
Best objective 1.700000000000e+01, best bound 4.100000000000e+01, gap 141.1765%

Wrote result file './lp_solutions/grafo6589.37.sol'

