
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:07:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo276.17.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/grafo276.17.lp
Reading time = 0.01 seconds
: 3692 rows, 326 columns, 11182 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 3692 rows, 326 columns and 11182 nonzeros
Model fingerprint: 0x34f0d4d7
Variable types: 16 continuous, 310 integer (310 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 823 rows and 18 columns
Presolve time: 0.05s
Presolved: 2869 rows, 308 columns, 8851 nonzeros
Variable types: 0 continuous, 308 integer (292 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.000000e+01, 221 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   10.00000    0   89    3.00000   10.00000   233%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
     0     0   10.00000    0  100    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   98    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   65    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   65    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   34    4.00000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
H    0     0                       6.0000000   10.00000  66.7%     -    0s
     0     0   10.00000    0   33    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   54    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   53    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   64    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   64    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   68    6.00000   10.00000  66.7%     -    1s
     0     0   10.00000    0   67    6.00000   10.00000  66.7%     -    1s
     0     0   10.00000    0   62    6.00000   10.00000  66.7%     -    1s
     0     0   10.00000    0   54    6.00000   10.00000  66.7%     -    1s
     0     2   10.00000    0   53    6.00000   10.00000  66.7%     -    1s
H  106    89                       7.0000000   10.00000  42.9%  38.0    1s

Cutting planes:
  Cover: 14
  MIR: 64
  StrongCG: 7
  GUB cover: 4
  Inf proof: 5
  Zero half: 4
  RLT: 20
  BQP: 1

Explored 433 nodes (13921 simplex iterations) in 2.18 seconds (1.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 7 6 5 ... -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/grafo276.17.sol'

