
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:24:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3015.35.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/grafo3015.35.lp
Reading time = 0.10 seconds
: 60184 rows, 1351 columns, 181429 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 60184 rows, 1351 columns and 181429 nonzeros
Model fingerprint: 0x2947798d
Variable types: 32 continuous, 1319 integer (1319 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 22993 rows and 16 columns
Presolve time: 0.40s
Presolved: 37191 rows, 1335 columns, 112797 nonzeros
Variable types: 0 continuous, 1335 integer (1303 binary)
Root relaxation presolved: 25686 rows, 12840 columns, 89787 nonzeros


Root relaxation: objective 2.700000e+01, 1476 iterations, 0.52 seconds (0.53 work units)

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

     0     0   27.00000    0  296          -   27.00000      -     -    2s
H    0     0                       3.0000000   27.00000   800%     -    3s
     0     0   27.00000    0  455    3.00000   27.00000   800%     -    4s
H    0     0                       9.0000000   27.00000   200%     -    4s
     0     0   27.00000    0  450    9.00000   27.00000   200%     -    5s
H    0     0                      11.0000000   27.00000   145%     -   20s
     0     0   27.00000    0  304   11.00000   27.00000   145%     -   20s
     0     0   27.00000    0  307   11.00000   27.00000   145%     -   20s
H    0     0                      12.0000000   27.00000   125%     -   26s
     0     0   27.00000    0  341   12.00000   27.00000   125%     -   26s
     0     0   27.00000    0  332   12.00000   27.00000   125%     -   27s
     0     0   27.00000    0  330   12.00000   27.00000   125%     -   30s
     0     0   27.00000    0  352   12.00000   27.00000   125%     -   30s
H    0     0                      13.0000000   27.00000   108%     -   33s
     0     0   27.00000    0  238   13.00000   27.00000   108%     -   33s
     0     0   27.00000    0  293   13.00000   27.00000   108%     -   34s
     0     0   27.00000    0  365   13.00000   27.00000   108%     -   41s
     0     0   27.00000    0  340   13.00000   27.00000   108%     -   41s
     0     0   27.00000    0  298   13.00000   27.00000   108%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 19
  Clique: 16
  MIR: 95
  GUB cover: 3
  Zero half: 56
  RLT: 51
  BQP: 2

Explored 1 nodes (64794 simplex iterations) in 50.04 seconds (45.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 3

Time limit reached
Best objective 1.300000000000e+01, best bound 2.700000000000e+01, gap 107.6923%

Wrote result file './lp_solutions/grafo3015.35.sol'

