
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:27:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2287.13.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/grafo2287.13.lp
Reading time = 0.01 seconds
: 1812 rows, 204 columns, 5490 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 1812 rows, 204 columns and 5490 nonzeros
Model fingerprint: 0x5ff106bb
Variable types: 12 continuous, 192 integer (192 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 2.0000000
Presolve removed 498 rows and 8 columns
Presolve time: 0.02s
Presolved: 1314 rows, 196 columns, 4062 nonzeros
Variable types: 0 continuous, 196 integer (184 binary)

Root relaxation: objective 1.000000e+01, 173 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   56    2.00000   10.00000   400%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
     0     0   10.00000    0   62    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   69    4.00000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0    9.66667    0   72    5.00000    9.66667  93.3%     -    0s
H    0     0                       6.0000000    9.66667  61.1%     -    0s
     0     0    9.50000    0   63    6.00000    9.50000  58.3%     -    0s
     0     0    9.00000    0   39    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   35    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   60    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   58    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   33    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   49    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   50    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   50    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   61    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   61    6.00000    9.00000  50.0%     -    0s
     0     2    9.00000    0   58    6.00000    9.00000  50.0%     -    0s

Cutting planes:
  Cover: 9
  MIR: 53
  GUB cover: 1
  Inf proof: 55
  Zero half: 13
  RLT: 29

Explored 2089 nodes (36548 simplex iterations) in 1.67 seconds (0.81 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 6 5 4 2 

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/grafo2287.13.sol'

