
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:37:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11672.35.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/grafo11672.35.lp
Reading time = 0.13 seconds
: 77421 rows, 1822 columns, 233852 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 77421 rows, 1822 columns and 233852 nonzeros
Model fingerprint: 0xd5e46419
Variable types: 43 continuous, 1779 integer (1779 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 22370 rows and 18 columns
Presolve time: 0.57s
Presolved: 55051 rows, 1804 columns, 167104 nonzeros
Variable types: 0 continuous, 1804 integer (1761 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1804 rows, 56855 columns, 168908 nonzeros


Root relaxation: objective 4.100000e+01, 1265 iterations, 0.26 seconds (0.25 work units)

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

     0     0   41.00000    0  237    8.00000   41.00000   412%     -    2s
H    0     0                       9.0000000   41.00000   356%     -    2s
H    0     0                      12.0000000   41.00000   242%     -    2s
     0     0   41.00000    0  485   12.00000   41.00000   242%     -    4s
H    0     0                      13.0000000   41.00000   215%     -    5s
     0     0   41.00000    0  511   13.00000   41.00000   215%     -    5s
     0     0   41.00000    0  552   13.00000   41.00000   215%     -   17s
     0     0   41.00000    0  518   13.00000   41.00000   215%     -   18s
H    0     0                      14.0000000   41.00000   193%     -   25s
H    0     0                      15.0000000   41.00000   173%     -   25s
     0     0   41.00000    0  530   15.00000   41.00000   173%     -   25s
H    0     0                      16.0000000   41.00000   156%     -   26s
     0     0   41.00000    0  549   16.00000   41.00000   156%     -   26s
     0     0   40.85714    0  429   16.00000   40.85714   155%     -   40s
     0     0   40.85714    0  470   16.00000   40.85714   155%     -   42s
     0     0   40.85714    0  429   16.00000   40.85714   155%     -   50s

Cutting planes:
  Cover: 19
  Clique: 9
  MIR: 119
  Zero half: 67
  RLT: 67
  Relax-and-lift: 1

Explored 1 nodes (48302 simplex iterations) in 50.06 seconds (44.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 8: 16 15 14 ... 3

Time limit reached
Best objective 1.600000000000e+01, best bound 4.000000000000e+01, gap 150.0000%

Wrote result file './lp_solutions/grafo11672.35.sol'

