
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:20:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2164.16.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/grafo2164.16.lp
Reading time = 0.01 seconds
: 4159 rows, 275 columns, 12552 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 4159 rows, 275 columns and 12552 nonzeros
Model fingerprint: 0x98097e63
Variable types: 13 continuous, 262 integer (262 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 1452 rows and 6 columns
Presolve time: 0.03s
Presolved: 2707 rows, 269 columns, 8311 nonzeros
Variable types: 0 continuous, 269 integer (256 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 179 iterations, 0.01 seconds (0.01 work units)

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

     0     0    9.00000    0   42    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   74    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   59    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   42    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   36    5.00000    9.00000  80.0%     -    0s
     0     0    8.83333    0   56    5.00000    8.83333  76.7%     -    0s
     0     0    8.83333    0   55    5.00000    8.83333  76.7%     -    0s
     0     0    8.80000    0   54    5.00000    8.80000  76.0%     -    0s
     0     0    8.75000    0   55    5.00000    8.75000  75.0%     -    0s
     0     0    8.66667    0   67    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   28    5.00000    8.66667  73.3%     -    0s
     0     2    8.66667    0   28    5.00000    8.66667  73.3%     -    0s
*  305   246              40       6.0000000    8.66667  44.4%  68.6    1s
  2600   936    8.00000   24   65    6.00000    8.50000  41.7%  59.6    5s
  5433  1059    7.66667   28   93    6.00000    8.00000  33.3%  65.3   10s
 11106  1318 infeasible   43         6.00000    7.00000  16.7%  69.6   15s
 15312  1004    7.00000   32  146    6.00000    7.00000  16.7%  73.9   20s
 20829   438 infeasible   36         6.00000    7.00000  16.7%  75.1   25s

Cutting planes:
  Clique: 1
  Inf proof: 1
  Zero half: 1

Explored 24993 nodes (1858405 simplex iterations) in 27.59 seconds (24.27 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 6 6 6 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2164.16.sol'

