
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:24:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10747.38.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/grafo10747.38.lp
Reading time = 0.09 seconds
: 54065 rows, 1564 columns, 163247 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 54065 rows, 1564 columns and 163247 nonzeros
Model fingerprint: 0xf458313a
Variable types: 34 continuous, 1530 integer (1530 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 15477 rows and 23 columns
Presolve time: 0.35s
Presolved: 38588 rows, 1541 columns, 117228 nonzeros
Variable types: 0 continuous, 1541 integer (1507 binary)
Root relaxation presolved: 24168 rows, 15961 columns, 88388 nonzeros


Root relaxation: objective 2.800000e+01, 1017 iterations, 0.26 seconds (0.24 work units)

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

     0     0   28.00000    0  253          -   28.00000      -     -    1s
H    0     0                      12.0000000   28.00000   133%     -    1s
H    0     0                      13.0000000   28.00000   115%     -    1s
     0     0   28.00000    0  436   13.00000   28.00000   115%     -    3s
     0     0   28.00000    0  444   13.00000   28.00000   115%     -    4s
H    0     0                      15.0000000   28.00000  86.7%     -   14s
H    0     0                      16.0000000   28.00000  75.0%     -   14s
     0     0   28.00000    0  413   16.00000   28.00000  75.0%     -   14s
     0     0   28.00000    0  381   16.00000   28.00000  75.0%     -   14s
     0     0   28.00000    0  391   16.00000   28.00000  75.0%     -   23s
     0     0   28.00000    0  428   16.00000   28.00000  75.0%     -   24s
H    0     0                      17.0000000   28.00000  64.7%     -   29s
     0     0   28.00000    0  365   17.00000   28.00000  64.7%     -   29s
     0     0   28.00000    0  375   17.00000   28.00000  64.7%     -   29s
     0     0   28.00000    0  340   17.00000   28.00000  64.7%     -   39s
     0     0   28.00000    0  344   17.00000   28.00000  64.7%     -   40s
     0     0   28.00000    0  379   17.00000   28.00000  64.7%     -   45s
     0     0   28.00000    0  324   17.00000   28.00000  64.7%     -   46s

Cutting planes:
  Cover: 1
  Clique: 9
  MIR: 25
  Zero half: 4
  RLT: 18
  BQP: 1

Explored 1 nodes (62891 simplex iterations) in 50.01 seconds (48.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 16 15 ... 12

Time limit reached
Best objective 1.700000000000e+01, best bound 2.800000000000e+01, gap 64.7059%

Wrote result file './lp_solutions/grafo10747.38.sol'

