
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:46:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5356.39.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/grafo5356.39.lp
Reading time = 0.17 seconds
: 103156 rows, 1979 columns, 311121 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 103156 rows, 1979 columns and 311121 nonzeros
Model fingerprint: 0xc319373d
Variable types: 43 continuous, 1936 integer (1936 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 32784 rows and 21 columns
Presolve time: 0.76s
Presolved: 70372 rows, 1958 columns, 213007 nonzeros
Variable types: 0 continuous, 1958 integer (1915 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1958 rows, 72330 columns, 214965 nonzeros


Root relaxation: objective 3.700000e+01, 1911 iterations, 0.41 seconds (0.42 work units)

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

     0     0   37.00000    0  366    6.00000   37.00000   517%     -    4s
H    0     0                       8.0000000   37.00000   362%     -    4s
H    0     0                       9.0000000   37.00000   311%     -    5s
     0     0   37.00000    0  723    9.00000   37.00000   311%     -   14s
     0     0   37.00000    0  652    9.00000   37.00000   311%     -   15s
H    0     0                      10.0000000   37.00000   270%     -   34s
     0     0   37.00000    0  530   10.00000   37.00000   270%     -   34s
     0     0   37.00000    0  460   10.00000   37.00000   270%     -   34s
     0     0   37.00000    0  522   10.00000   37.00000   270%     -   50s

Cutting planes:
  Cover: 32
  Clique: 20
  MIR: 127
  StrongCG: 2
  GUB cover: 6
  Zero half: 71
  RLT: 72
  BQP: 6

Explored 1 nodes (36723 simplex iterations) in 50.06 seconds (45.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 10 9 8 6 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.700000000000e+01, gap 270.0000%

Wrote result file './lp_solutions/grafo5356.39.sol'

