
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 00:12:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1615.12.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/grafo1615.12.lp
Reading time = 0.02 seconds
: 7820 rows, 282 columns, 23649 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 7820 rows, 282 columns and 23649 nonzeros
Model fingerprint: 0x4d6bdf4a
Variable types: 12 continuous, 270 integer (270 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]
Presolve removed 6390 rows and 64 columns
Presolve time: 0.03s
Presolved: 1430 rows, 218 columns, 4505 nonzeros
Variable types: 0 continuous, 218 integer (206 binary)

Root relaxation: objective 9.000000e+00, 168 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   53          -    9.00000      -     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0  102    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   90    5.00000    9.00000  80.0%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   60    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   52    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   52    7.00000    9.00000  28.6%     -    0s
     0     0    8.85714    0   62    7.00000    8.85714  26.5%     -    0s
     0     0    8.50000    0   42    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   53    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   55    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   75    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   45    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   45    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   40    7.00000    8.50000  21.4%     -    0s
     0     0    8.50000    0   40    7.00000    8.50000  21.4%     -    0s
     0     2    8.50000    0   32    7.00000    8.50000  21.4%     -    0s
  5109    10    8.00000   21   51    7.00000    8.00000  14.3%  60.3    5s

Cutting planes:
  Cover: 98
  Clique: 3
  MIR: 42
  StrongCG: 2
  Inf proof: 140
  Zero half: 10
  RLT: 39
  Relax-and-lift: 1
  BQP: 1

Explored 5341 nodes (329228 simplex iterations) in 5.05 seconds (5.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 6 5 

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/grafo1615.12.sol'

