
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:57:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo839.14.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/grafo839.14.lp
Reading time = 0.01 seconds
: 3870 rows, 271 columns, 11706 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 3870 rows, 271 columns and 11706 nonzeros
Model fingerprint: 0x1dbde47e
Variable types: 15 continuous, 256 integer (256 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 1407 rows and 9 columns
Presolve time: 0.04s
Presolved: 2463 rows, 262 columns, 7581 nonzeros
Variable types: 0 continuous, 262 integer (247 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 1.200000e+01, 243 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    2.00000   12.00000   500%     -    0s
H    0     0                       3.0000000   12.00000   300%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0  108    5.00000   12.00000   140%     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
     0     0   12.00000    0  102    6.00000   12.00000   100%     -    0s
H    0     0                       7.0000000   11.66667  66.7%     -    0s
     0     0   11.66667    0   51    7.00000   11.66667  66.7%     -    0s
     0     0   11.66667    0   59    7.00000   11.66667  66.7%     -    0s
     0     0   11.00000    0   67    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   70    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0  104    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   87    7.00000   11.00000  57.1%     -    0s
     0     0   10.50000    0   67    7.00000   10.50000  50.0%     -    0s
     0     0   10.50000    0   66    7.00000   10.50000  50.0%     -    0s
     0     0   10.00000    0   48    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   51    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   55    7.00000   10.00000  42.9%     -    1s
     0     0   10.00000    0   53    7.00000   10.00000  42.9%     -    1s
     0     2   10.00000    0   53    7.00000   10.00000  42.9%     -    1s

Cutting planes:
  Cover: 18
  Clique: 3
  MIR: 66
  StrongCG: 3
  GUB cover: 1
  Inf proof: 52
  Zero half: 5
  RLT: 42
  BQP: 1
  PSD: 2

Explored 2166 nodes (70309 simplex iterations) in 3.80 seconds (2.09 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/grafo839.14.sol'

