
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:16:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo631.16.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/grafo631.16.lp
Reading time = 0.01 seconds
: 3219 rows, 310 columns, 9763 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 3219 rows, 310 columns and 9763 nonzeros
Model fingerprint: 0xb2750543
Variable types: 16 continuous, 294 integer (294 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 665 rows and 15 columns
Presolve time: 0.03s
Presolved: 2554 rows, 295 columns, 7894 nonzeros
Variable types: 0 continuous, 295 integer (279 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 1.000000e+01, 128 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   10.00000    0   45    2.00000   10.00000   400%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0   64    5.00000   10.00000   100%     -    0s
     0     0    9.50000    0   58    5.00000    9.50000  90.0%     -    0s
     0     0    9.00000    0   57    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   54    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   68    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   46    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   76    5.00000    9.00000  80.0%     -    0s
     0     0    8.66667    0   72    5.00000    8.66667  73.3%     -    0s
     0     0    8.66667    0   70    5.00000    8.66667  73.3%     -    0s
     0     2    8.66667    0   70    5.00000    8.66667  73.3%     -    0s
H   31    39                       6.0000000    8.66667  44.4%  43.6    0s
* 1122   254              32       7.0000000    8.00000  14.3%  70.8    4s
  1363   219    8.00000   21   74    7.00000    8.00000  14.3%  80.6    5s
  2532   198    8.00000   19   67    7.00000    8.00000  14.3%   114   10s
  3490   123 infeasible   24         7.00000    8.00000  14.3%   128   15s

Cutting planes:
  Gomory: 4
  Cover: 180
  MIR: 94
  StrongCG: 14
  GUB cover: 4
  Inf proof: 65
  Zero half: 10
  RLT: 24

Explored 4543 nodes (611589 simplex iterations) in 18.67 seconds (15.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 7 6 5 ... 1

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/grafo631.16.sol'

