
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 19:18:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6156.34.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/grafo6156.34.lp
Reading time = 0.09 seconds
: 56273 rows, 1679 columns, 170217 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 56273 rows, 1679 columns and 170217 nonzeros
Model fingerprint: 0x6716c9d0
Variable types: 40 continuous, 1639 integer (1639 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 14936 rows and 46 columns
Presolve time: 0.40s
Presolved: 41337 rows, 1633 columns, 125751 nonzeros
Variable types: 0 continuous, 1633 integer (1593 binary)
Root relaxation presolved: 25473 rows, 17497 columns, 94023 nonzeros


Root relaxation: objective 3.800000e+01, 2883 iterations, 1.36 seconds (1.21 work units)

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

     0     0   38.00000    0  489          -   38.00000      -     -    4s
H    0     0                       5.0000000   38.00000   660%     -    6s
     0     0   38.00000    0  777    5.00000   38.00000   660%     -   11s
H    0     0                      11.0000000   38.00000   245%     -   11s
     0     0   38.00000    0  740   11.00000   38.00000   245%     -   12s
     0     0   38.00000    0  444   11.00000   38.00000   245%     -   29s
H    0     0                      12.0000000   38.00000   217%     -   29s
     0     0   38.00000    0  430   12.00000   38.00000   217%     -   30s
     0     0   38.00000    0  363   12.00000   38.00000   217%     -   43s
     0     0   38.00000    0  395   12.00000   38.00000   217%     -   44s
     0     0   38.00000    0  615   12.00000   38.00000   217%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 27
  Clique: 7
  MIR: 128
  StrongCG: 1
  GUB cover: 3
  Inf proof: 2
  Zero half: 47
  RLT: 63
  BQP: 3

Explored 1 nodes (62057 simplex iterations) in 50.04 seconds (45.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 5 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.800000000000e+01, gap 216.6667%

Wrote result file './lp_solutions/grafo6156.34.sol'

