
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 02:13:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3044.26.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/grafo3044.26.lp
Reading time = 0.14 seconds
: 83481 rows, 1016 columns, 251181 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 83481 rows, 1016 columns and 251181 nonzeros
Model fingerprint: 0x766c0680
Variable types: 29 continuous, 987 integer (987 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 42735 rows and 14 columns
Presolve time: 0.60s
Presolved: 40746 rows, 1002 columns, 123307 nonzeros
Variable types: 0 continuous, 1002 integer (973 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1002 rows, 41748 columns, 124309 nonzeros


Root relaxation: objective 3.000000e+01, 1046 iterations, 0.21 seconds (0.24 work units)

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

     0     0   30.00000    0  244    8.00000   30.00000   275%     -    2s
     0     0   30.00000    0  302    8.00000   30.00000   275%     -    3s
     0     0   30.00000    0  311    8.00000   30.00000   275%     -    7s
     0     0   30.00000    0  337    8.00000   30.00000   275%     -    7s
H    0     0                       9.0000000   30.00000   233%     -   16s
     0     0   30.00000    0  271    9.00000   30.00000   233%     -   16s
     0     0   30.00000    0  253    9.00000   30.00000   233%     -   16s
H    0     0                      10.0000000   30.00000   200%     -   28s
H    0     0                      11.0000000   30.00000   173%     -   28s
     0     0   30.00000    0  280   11.00000   30.00000   173%     -   28s
     0     0   30.00000    0  256   11.00000   30.00000   173%     -   28s
H    0     0                      12.0000000   30.00000   150%     -   36s
     0     0   30.00000    0  216   12.00000   30.00000   150%     -   36s
     0     0   30.00000    0  246   12.00000   30.00000   150%     -   36s
     0     0   30.00000    0  273   12.00000   30.00000   150%     -   40s
     0     0   30.00000    0  268   12.00000   30.00000   150%     -   41s
     0     0   30.00000    0  266   12.00000   30.00000   150%     -   45s
     0     0   30.00000    0  228   12.00000   30.00000   150%     -   46s
     0     2   30.00000    0  228   12.00000   30.00000   150%     -   49s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 2
  Clique: 5
  MIR: 49
  StrongCG: 1
  GUB cover: 1
  Zero half: 2
  RLT: 36
  BQP: 1

Explored 3 nodes (53469 simplex iterations) in 50.04 seconds (49.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 11 10 ... 8

Time limit reached
Best objective 1.200000000000e+01, best bound 3.000000000000e+01, gap 150.0000%

Wrote result file './lp_solutions/grafo3044.26.sol'

