
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 15:58:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2806.15.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/grafo2806.15.lp
Reading time = 0.01 seconds
: 4071 rows, 274 columns, 12312 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 4071 rows, 274 columns and 12312 nonzeros
Model fingerprint: 0xef0b2d28
Variable types: 14 continuous, 260 integer (260 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 1411 rows and 3 columns
Presolve time: 0.02s
Presolved: 2660 rows, 271 columns, 8182 nonzeros
Variable types: 0 continuous, 271 integer (257 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 146 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    9.00000    0   36    4.00000    9.00000   125%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   60    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   57    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   57    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   64    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   21    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   21    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   24    6.00000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   24    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   37    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   45    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   24    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   24    7.00000    9.00000  28.6%     -    0s
     0     2    9.00000    0   24    7.00000    9.00000  28.6%     -    0s

Cutting planes:
  Cover: 14
  Clique: 8
  MIR: 39
  StrongCG: 3
  Zero half: 5
  RLT: 27
  BQP: 2

Explored 922 nodes (30941 simplex iterations) in 1.47 seconds (1.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 4 2 

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/grafo2806.15.sol'

