
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:59:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2777.37.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/grafo2777.37.lp
Reading time = 0.10 seconds
: 60181 rows, 1883 columns, 182118 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 60181 rows, 1883 columns and 182118 nonzeros
Model fingerprint: 0x81aed8d4
Variable types: 43 continuous, 1840 integer (1840 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 11581 rows and 17 columns
Presolve time: 0.38s
Presolved: 48600 rows, 1866 columns, 147742 nonzeros
Variable types: 0 continuous, 1866 integer (1823 binary)
Root relaxation presolved: 28489 rows, 21977 columns, 107520 nonzeros


Root relaxation: objective 4.300000e+01, 1912 iterations, 0.60 seconds (0.54 work units)

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

     0     0   43.00000    0  382          -   43.00000      -     -    2s
H    0     0                       9.0000000   43.00000   378%     -    2s
H    0     0                      11.0000000   43.00000   291%     -    2s
H    0     0                      12.0000000   43.00000   258%     -    3s
H    0     0                      15.0000000   43.00000   187%     -    9s
     0     0   43.00000    0  749   15.00000   43.00000   187%     -   10s
H    0     0                      16.0000000   43.00000   169%     -   10s
     0     0   43.00000    0  669   16.00000   43.00000   169%     -   10s
H    0     0                      17.0000000   43.00000   153%     -   38s
H    0     0                      18.0000000   43.00000   139%     -   38s
     0     0   42.66667    0  585   18.00000   42.66667   137%     -   38s
     0     0   42.66667    0  609   18.00000   42.66667   137%     -   40s
     0     0   42.66667    0  409   18.00000   42.66667   137%     -   49s
     0     0          -    0        18.00000   42.66667   137%     -   50s

Cutting planes:
  Clique: 5
  MIR: 27
  RLT: 18

Explored 1 nodes (47941 simplex iterations) in 50.05 seconds (42.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 18 17 16 ... 9

Time limit reached
Best objective 1.800000000000e+01, best bound 4.200000000000e+01, gap 133.3333%

Wrote result file './lp_solutions/grafo2777.37.sol'

