
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:09:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6572.38.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/grafo6572.38.lp
Reading time = 0.08 seconds
: 50297 rows, 1576 columns, 151960 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 50297 rows, 1576 columns and 151960 nonzeros
Model fingerprint: 0x762a48d0
Variable types: 35 continuous, 1541 integer (1541 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 12510 rows and 45 columns
Presolve time: 0.32s
Presolved: 37787 rows, 1531 columns, 114736 nonzeros
Variable types: 0 continuous, 1531 integer (1496 binary)
Root relaxation presolved: 22806 rows, 16512 columns, 84774 nonzeros


Root relaxation: objective 2.900000e+01, 2339 iterations, 0.86 seconds (0.83 work units)

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

     0     0   29.00000    0  363          -   29.00000      -     -    2s
H    0     0                       6.0000000   29.00000   383%     -    3s
     0     0   29.00000    0  481    6.00000   29.00000   383%     -    5s
H    0     0                       8.0000000   29.00000   262%     -    5s
     0     0   29.00000    0  445    8.00000   29.00000   262%     -    5s
     0     0   29.00000    0  406    8.00000   29.00000   262%     -   22s
H    0     0                      10.0000000   29.00000   190%     -   22s
     0     0   29.00000    0  385   10.00000   29.00000   190%     -   22s
     0     0   29.00000    0  335   10.00000   29.00000   190%     -   27s
     0     0   29.00000    0  373   10.00000   29.00000   190%     -   28s
     0     0   29.00000    0  369   10.00000   29.00000   190%     -   39s
     0     0   29.00000    0  383   10.00000   29.00000   190%     -   40s
H    0     0                      11.0000000   29.00000   164%     -   45s
     0     0   29.00000    0  333   11.00000   29.00000   164%     -   45s
     0     0   29.00000    0  275   11.00000   29.00000   164%     -   45s
     0     0   29.00000    0  370   11.00000   29.00000   164%     -   50s

Cutting planes:
  Cover: 26
  Clique: 10
  MIR: 51
  StrongCG: 2
  GUB cover: 3
  Inf proof: 3
  Zero half: 36
  RLT: 40
  BQP: 2

Explored 1 nodes (78301 simplex iterations) in 50.06 seconds (50.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 11 10 8 6 

Time limit reached
Best objective 1.100000000000e+01, best bound 2.900000000000e+01, gap 163.6364%

Wrote result file './lp_solutions/grafo6572.38.sol'

