
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 02:42:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo932.28.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/grafo932.28.lp
Reading time = 0.11 seconds
: 67801 rows, 1146 columns, 204283 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 67801 rows, 1146 columns and 204283 nonzeros
Model fingerprint: 0x9742a25a
Variable types: 32 continuous, 1114 integer (1114 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 3.0000000
Presolve removed 31611 rows and 18 columns
Presolve time: 0.46s
Presolved: 36190 rows, 1128 columns, 109760 nonzeros
Variable types: 0 continuous, 1128 integer (1096 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1128 rows, 37318 columns, 110888 nonzeros


Root relaxation: objective 3.000000e+01, 1058 iterations, 0.20 seconds (0.22 work units)

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

     0     0   30.00000    0  293    8.00000   30.00000   275%     -    1s
H    0     0                       9.0000000   30.00000   233%     -    2s
     0     0   30.00000    0  507    9.00000   30.00000   233%     -    4s
     0     0   30.00000    0  499    9.00000   30.00000   233%     -    5s
H    0     0                      11.0000000   30.00000   173%     -   13s
     0     0   30.00000    0  239   11.00000   30.00000   173%     -   13s
     0     0   30.00000    0  273   11.00000   30.00000   173%     -   13s
     0     0   30.00000    0  238   11.00000   30.00000   173%     -   18s
     0     0   30.00000    0  274   11.00000   30.00000   173%     -   18s
     0     0   30.00000    0  380   11.00000   30.00000   173%     -   23s
     0     0   30.00000    0  372   11.00000   30.00000   173%     -   23s
H    0     0                      12.0000000   30.00000   150%     -   29s
     0     0   30.00000    0  328   12.00000   30.00000   150%     -   29s
     0     0   30.00000    0  323   12.00000   30.00000   150%     -   30s
     0     0   30.00000    0  338   12.00000   30.00000   150%     -   34s
     0     0   30.00000    0  382   12.00000   30.00000   150%     -   35s
     0     0   30.00000    0  455   12.00000   30.00000   150%     -   42s
     0     0   30.00000    0  296   12.00000   30.00000   150%     -   46s
H    0     0                      13.0000000   30.00000   131%     -   49s

Cutting planes:
  Cover: 1
  Clique: 9
  MIR: 16
  GUB cover: 1
  RLT: 14

Explored 1 nodes (55710 simplex iterations) in 50.02 seconds (47.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 13 12 11 ... 3

Time limit reached
Best objective 1.300000000000e+01, best bound 3.000000000000e+01, gap 130.7692%

Wrote result file './lp_solutions/grafo932.28.sol'

