
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:50:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6342.37.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/grafo6342.37.lp
Reading time = 0.07 seconds
: 39120 rows, 1618 columns, 118571 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 39120 rows, 1618 columns and 118571 nonzeros
Model fingerprint: 0xbae6e26f
Variable types: 39 continuous, 1579 integer (1579 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]
Found heuristic solution: objective 6.0000000
Presolve removed 3257 rows and 32 columns
Presolve time: 0.26s
Presolved: 35863 rows, 1586 columns, 109095 nonzeros
Variable types: 0 continuous, 1586 integer (1547 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 18954 rows, 18495 columns, 75277 nonzeros


Root relaxation: objective 3.100000e+01, 1683 iterations, 0.46 seconds (0.38 work units)

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

     0     0   31.00000    0  392   11.00000   31.00000   182%     -    1s
H    0     0                      13.0000000   31.00000   138%     -    2s
     0     0   31.00000    0  578   13.00000   31.00000   138%     -    4s
H    0     0                      14.0000000   31.00000   121%     -    4s
     0     0   31.00000    0  567   14.00000   31.00000   121%     -    4s
     0     0   31.00000    0  370   14.00000   31.00000   121%     -   10s
     0     0   31.00000    0  361   14.00000   31.00000   121%     -   10s
     0     0   31.00000    0  398   14.00000   31.00000   121%     -   16s
     0     0   31.00000    0  455   14.00000   31.00000   121%     -   17s
     0     0   31.00000    0  381   14.00000   31.00000   121%     -   27s
     0     0   31.00000    0  334   14.00000   31.00000   121%     -   27s
H    0     0                      15.0000000   31.00000   107%     -   32s
     0     0   31.00000    0  277   15.00000   31.00000   107%     -   32s
     0     0   31.00000    0  257   15.00000   31.00000   107%     -   33s
     0     0   31.00000    0  387   15.00000   31.00000   107%     -   41s
     0     0   31.00000    0  373   15.00000   31.00000   107%     -   42s
     0     0   31.00000    0  290   15.00000   31.00000   107%     -   45s
     0     0   31.00000    0  237   15.00000   31.00000   107%     -   46s

Cutting planes:
  Clique: 1
  MIR: 21
  Zero half: 3
  RLT: 22
  BQP: 1

Explored 1 nodes (79400 simplex iterations) in 50.02 seconds (46.81 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 6

Time limit reached
Best objective 1.500000000000e+01, best bound 3.100000000000e+01, gap 106.6667%

Wrote result file './lp_solutions/grafo6342.37.sol'

