
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:38:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1231.35.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/grafo1231.35.lp
Reading time = 0.10 seconds
: 62245 rows, 1634 columns, 187983 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 62245 rows, 1634 columns and 187983 nonzeros
Model fingerprint: 0x3513a711
Variable types: 38 continuous, 1596 integer (1596 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 22886 rows and 47 columns
Presolve time: 0.39s
Presolved: 39359 rows, 1587 columns, 119738 nonzeros
Variable types: 0 continuous, 1587 integer (1549 binary)
Root relaxation presolved: 24378 rows, 16568 columns, 89776 nonzeros


Root relaxation: objective 3.800000e+01, 1939 iterations, 0.66 seconds (0.66 work units)

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

     0     0   38.00000    0  424          -   38.00000      -     -    2s
H    0     0                      10.0000000   38.00000   280%     -    2s
H    0     0                      11.0000000   38.00000   245%     -    2s
H    0     0                      13.0000000   38.00000   192%     -    3s
     0     0   38.00000    0  593   13.00000   38.00000   192%     -    6s
     0     0   38.00000    0  542   13.00000   38.00000   192%     -    7s
H    0     0                      14.0000000   38.00000   171%     -    9s
H    0     0                      15.0000000   38.00000   153%     -   22s
H    0     0                      16.0000000   38.00000   138%     -   22s
H    0     0                      17.0000000   38.00000   124%     -   22s
     0     0   38.00000    0  475   17.00000   38.00000   124%     -   22s
     0     0   38.00000    0  472   17.00000   38.00000   124%     -   23s
     0     0   38.00000    0  603   17.00000   38.00000   124%     -   39s
     0     0   38.00000    0  600   17.00000   38.00000   124%     -   39s
     0     0   38.00000    0  520   17.00000   38.00000   124%     -   50s

Cutting planes:
  Cover: 4
  Clique: 9
  MIR: 109
  GUB cover: 1
  Zero half: 85
  RLT: 54
  BQP: 2

Explored 1 nodes (55465 simplex iterations) in 50.05 seconds (42.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 17 16 15 ... 10

Time limit reached
Best objective 1.700000000000e+01, best bound 3.800000000000e+01, gap 123.5294%

Wrote result file './lp_solutions/grafo1231.35.sol'

