
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:43:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10940.39.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/grafo10940.39.lp
Reading time = 0.11 seconds
: 63990 rows, 1790 columns, 193248 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 63990 rows, 1790 columns and 193248 nonzeros
Model fingerprint: 0x266a48ea
Variable types: 40 continuous, 1750 integer (1750 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 1.0000000
Presolve removed 14880 rows and 42 columns
Presolve time: 0.45s
Presolved: 49110 rows, 1748 columns, 149062 nonzeros
Variable types: 0 continuous, 1748 integer (1708 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1748 rows, 50858 columns, 150810 nonzeros


Root relaxation: objective 3.100000e+01, 1478 iterations, 0.28 seconds (0.27 work units)

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

     0     0   31.00000    0  328    5.00000   31.00000   520%     -    2s
H    0     0                       7.0000000   31.00000   343%     -    2s
H    0     0                       8.0000000   31.00000   288%     -    2s
H    0     0                       9.0000000   31.00000   244%     -    3s
     0     0   31.00000    0  617    9.00000   31.00000   244%     -    8s
H    0     0                      11.0000000   31.00000   182%     -    8s
     0     0   31.00000    0  570   11.00000   31.00000   182%     -    8s
     0     0   31.00000    0  357   11.00000   31.00000   182%     -   17s
H    0     0                      12.0000000   31.00000   158%     -   17s
     0     0   31.00000    0  258   12.00000   31.00000   158%     -   17s
     0     0   31.00000    0  396   12.00000   31.00000   158%     -   30s
     0     0   31.00000    0  390   12.00000   31.00000   158%     -   30s
H    0     0                      13.0000000   31.00000   138%     -   40s
     0     0   31.00000    0  465   13.00000   31.00000   138%     -   40s
     0     0   31.00000    0  394   13.00000   31.00000   138%     -   40s
     0     0   31.00000    0  292   13.00000   31.00000   138%     -   48s
     0     0   31.00000    0  323   13.00000   31.00000   138%     -   48s
     0     0          -    0        13.00000   31.00000   138%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  Clique: 16
  MIR: 98
  StrongCG: 2
  GUB cover: 4
  Zero half: 44
  RLT: 50
  Relax-and-lift: 1

Explored 1 nodes (59906 simplex iterations) in 50.06 seconds (48.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 13 12 11 ... 1

Time limit reached
Best objective 1.300000000000e+01, best bound 3.100000000000e+01, gap 138.4615%

Wrote result file './lp_solutions/grafo10940.39.sol'

