
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:31:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7307.37.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/grafo7307.37.lp
Reading time = 0.11 seconds
: 73958 rows, 1697 columns, 223156 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 73958 rows, 1697 columns and 223156 nonzeros
Model fingerprint: 0xfdb9c85f
Variable types: 39 continuous, 1658 integer (1658 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 22306 rows and 25 columns
Presolve time: 0.45s
Presolved: 51652 rows, 1672 columns, 156573 nonzeros
Variable types: 0 continuous, 1672 integer (1633 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1672 rows, 53324 columns, 158245 nonzeros


Root relaxation: objective 3.400000e+01, 1726 iterations, 0.28 seconds (0.38 work units)

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

     0     0   34.00000    0  302    5.00000   34.00000   580%     -    3s
H    0     0                       8.0000000   34.00000   325%     -    3s
H    0     0                       9.0000000   34.00000   278%     -    4s
     0     0   34.00000    0  578    9.00000   34.00000   278%     -    7s
     0     0   34.00000    0  548    9.00000   34.00000   278%     -    8s
H    0     0                      11.0000000   34.00000   209%     -   24s
     0     0   34.00000    0  454   11.00000   34.00000   209%     -   24s
     0     0   34.00000    0  443   11.00000   34.00000   209%     -   24s
H    0     0                      13.0000000   34.00000   162%     -   36s
     0     0   34.00000    0  539   13.00000   34.00000   162%     -   36s
H    0     0                      14.0000000   34.00000   143%     -   37s
     0     0   34.00000    0  486   14.00000   34.00000   143%     -   37s
     0     0   34.00000    0  380   14.00000   34.00000   143%     -   50s

Cutting planes:
  Cover: 1
  Clique: 4
  MIR: 32
  Zero half: 1
  RLT: 21

Explored 1 nodes (60254 simplex iterations) in 50.09 seconds (60.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 14 13 11 ... 5

Time limit reached
Best objective 1.400000000000e+01, best bound 3.400000000000e+01, gap 142.8571%

Wrote result file './lp_solutions/grafo7307.37.sol'

