
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 00:11:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1152.18.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/grafo1152.18.lp
Reading time = 0.09 seconds
: 50549 rows, 633 columns, 152116 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 50549 rows, 633 columns and 152116 nonzeros
Model fingerprint: 0x013e0dab
Variable types: 23 continuous, 610 integer (610 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 37192 rows and 53 columns
Presolve time: 0.29s
Presolved: 13357 rows, 580 columns, 40714 nonzeros
Variable types: 0 continuous, 580 integer (557 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 10770 rows, 3167 columns, 35540 nonzeros


Root relaxation: objective 2.300000e+01, 523 iterations, 0.10 seconds (0.09 work units)

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

     0     0   23.00000    0  175    4.00000   23.00000   475%     -    0s
H    0     0                       5.0000000   23.00000   360%     -    0s
H    0     0                       7.0000000   23.00000   229%     -    1s
     0     0   23.00000    0  259    7.00000   23.00000   229%     -    1s
     0     0   23.00000    0  239    7.00000   23.00000   229%     -    1s
     0     0   23.00000    0  187    7.00000   23.00000   229%     -    2s
     0     0   23.00000    0  226    7.00000   23.00000   229%     -    2s
     0     0   23.00000    0  228    7.00000   23.00000   229%     -    3s
     0     0   23.00000    0  211    7.00000   23.00000   229%     -    4s
H    0     0                       8.0000000   23.00000   187%     -    4s
     0     0   23.00000    0  190    8.00000   23.00000   187%     -    5s
     0     0   23.00000    0  189    8.00000   23.00000   187%     -    5s
     0     0   23.00000    0  206    8.00000   23.00000   187%     -    6s
     0     0   23.00000    0  197    8.00000   23.00000   187%     -    7s
     0     0   23.00000    0  192    8.00000   23.00000   187%     -    7s
     0     0   23.00000    0  192    8.00000   23.00000   187%     -    8s
     0     2   23.00000    0  121    8.00000   23.00000   187%     -    9s
     3     8   23.00000    2  199    8.00000   23.00000   187%   626   10s
H  112   121                       9.0000000   23.00000   156%   140   11s

Cutting planes:
  Cover: 6
  Clique: 18
  MIR: 48
  StrongCG: 1
  GUB cover: 2
  Zero half: 11
  RLT: 34
  BQP: 1

Explored 276 nodes (58461 simplex iterations) in 13.88 seconds (12.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 7 ... 4

Solve interrupted
Best objective 9.000000000000e+00, best bound 2.300000000000e+01, gap 155.5556%

Wrote result file './lp_solutions/grafo1152.18.sol'

