
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:38:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2300.17.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/grafo2300.17.lp
Reading time = 0.01 seconds
: 4011 rows, 332 columns, 12161 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 4011 rows, 332 columns and 12161 nonzeros
Model fingerprint: 0x0ba0f7e0
Variable types: 15 continuous, 317 integer (317 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 4.0000000
Presolve removed 1191 rows and 7 columns
Presolve time: 0.03s
Presolved: 2820 rows, 325 columns, 8692 nonzeros
Variable types: 0 continuous, 325 integer (310 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.200000e+01, 171 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   12.00000    0   84    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   89    5.00000   12.00000   140%     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     0   12.00000    0   88    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   54    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   53    7.00000   12.00000  71.4%     -    0s
     0     0   11.00000    0   54    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   53    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   63    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   59    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   53    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   66    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   59    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   59    7.00000   11.00000  57.1%     -    0s
     0     2   11.00000    0   59    7.00000   11.00000  57.1%     -    0s
H 1166   412                       8.0000000   11.00000  37.5%  38.7    1s

Cutting planes:
  Gomory: 5
  Cover: 40
  Clique: 2
  MIR: 92
  GUB cover: 1
  Inf proof: 65
  Zero half: 15
  RLT: 27

Explored 3124 nodes (112725 simplex iterations) in 3.06 seconds (3.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 5 4 

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2300.17.sol'

