
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 19:10:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2783.15.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/grafo2783.15.lp
Reading time = 0.01 seconds
: 4804 rows, 289 columns, 14539 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 4804 rows, 289 columns and 14539 nonzeros
Model fingerprint: 0x6e7135d2
Variable types: 13 continuous, 276 integer (276 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 2887 rows and 33 columns
Presolve time: 0.03s
Presolved: 1917 rows, 256 columns, 5977 nonzeros
Variable types: 0 continuous, 256 integer (243 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 145 iterations, 0.01 seconds (0.00 work units)

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

     0     0    9.00000    0   28    4.00000    9.00000   125%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   95    6.00000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   30    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   37    7.00000    9.00000  28.6%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   38    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   36    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   16    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   37    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   54    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   70    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   35    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   35    7.00000    8.00000  14.3%     -    0s
     0     2    8.00000    0   35    7.00000    8.00000  14.3%     -    0s

Cutting planes:
  Cover: 40
  Clique: 1
  MIR: 47
  StrongCG: 3
  GUB cover: 1
  Inf proof: 49
  Zero half: 3
  RLT: 27
  Relax-and-lift: 1

Explored 1557 nodes (82190 simplex iterations) in 1.88 seconds (1.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 6 4 

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2783.15.sol'

