
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:21:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2928.15.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/grafo2928.15.lp
Reading time = 0.01 seconds
: 2871 rows, 289 columns, 8734 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 2871 rows, 289 columns and 8734 nonzeros
Model fingerprint: 0x50653a53
Variable types: 16 continuous, 273 integer (273 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 2.0000000
Presolve removed 540 rows and 12 columns
Presolve time: 0.04s
Presolved: 2331 rows, 277 columns, 7213 nonzeros
Variable types: 0 continuous, 277 integer (261 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 98 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   43    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   76    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   77    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   71    5.00000    9.00000  80.0%     -    0s
     0     0    8.66667    0   70    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   39    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   47    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   30    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   38    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   48    5.00000    8.66667  73.3%     -    0s
     0     0    8.50000    0   32    5.00000    8.50000  70.0%     -    0s
     0     0    8.50000    0   59    5.00000    8.50000  70.0%     -    0s
     0     0    8.50000    0   49    5.00000    8.50000  70.0%     -    0s
     0     2    8.50000    0   48    5.00000    8.50000  70.0%     -    0s
*   62    62              11       7.0000000    8.50000  21.4%  34.3    1s

Cutting planes:
  Cover: 9
  Clique: 3
  MIR: 48
  StrongCG: 4
  GUB cover: 1
  Zero half: 4
  RLT: 15
  BQP: 1

Explored 159 nodes (6970 simplex iterations) in 1.21 seconds (0.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 5 4 2 

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/grafo2928.15.sol'

