
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:46:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo739.15.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/grafo739.15.lp
Reading time = 0.01 seconds
: 3026 rows, 285 columns, 9174 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 3026 rows, 285 columns and 9174 nonzeros
Model fingerprint: 0x0f654ec6
Variable types: 15 continuous, 270 integer (270 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 1.0000000
Presolve removed 793 rows and 13 columns
Presolve time: 0.02s
Presolved: 2233 rows, 272 columns, 6903 nonzeros
Variable types: 0 continuous, 272 integer (257 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 1.200000e+01, 269 iterations, 0.02 seconds (0.01 work units)

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

     0     0   12.00000    0   55    2.00000   12.00000   500%     -    0s
H    0     0                       3.0000000   12.00000   300%     -    0s
     0     0   12.00000    0   90    3.00000   12.00000   300%     -    0s
H    0     0                       4.0000000   12.00000   200%     -    0s
     0     0   12.00000    0   90    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   61    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   61    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   67    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   68    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   70    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   64    4.00000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0   80    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   95    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   76    5.00000   12.00000   140%     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     2   12.00000    0   60    7.00000   12.00000  71.4%     -    0s
H  117   122                       8.0000000   12.00000  50.0%  37.2    1s

Cutting planes:
  Cover: 22
  MIR: 93
  StrongCG: 5
  GUB cover: 2
  Inf proof: 26
  Zero half: 5
  RLT: 26

Explored 3333 nodes (64731 simplex iterations) in 3.77 seconds (2.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 8 7 5 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo739.15.sol'

