
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:40:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1790.16.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/grafo1790.16.lp
Reading time = 0.02 seconds
: 4582 rows, 285 columns, 13816 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 4582 rows, 285 columns and 13816 nonzeros
Model fingerprint: 0x3888c97b
Variable types: 14 continuous, 271 integer (271 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 -0.0000000
Presolve removed 1748 rows and 12 columns
Presolve time: 0.04s
Presolved: 2834 rows, 273 columns, 8668 nonzeros
Variable types: 0 continuous, 273 integer (259 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.200000e+01, 206 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   56    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   85    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   80    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   90    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   91    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   92    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   86    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0  116    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0  106    4.00000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    1s
     0     0   11.66667    0  108    5.00000   11.66667   133%     -    1s
     0     0   11.66667    0  107    5.00000   11.66667   133%     -    1s
     0     2   11.66667    0   81    5.00000   11.66667   133%     -    1s
H   31    40                       7.0000000   11.66667  66.7%  52.5    1s

Cutting planes:
  Cover: 14
  Clique: 3
  MIR: 101
  StrongCG: 1
  GUB cover: 2
  Inf proof: 5
  Zero half: 16
  RLT: 36

Explored 1289 nodes (40752 simplex iterations) in 3.32 seconds (1.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 5 4 -0 

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/grafo1790.16.sol'

