
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:08:09 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1080.16.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/grafo1080.16.lp
Reading time = 0.01 seconds
: 2717 rows, 279 columns, 8236 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 2717 rows, 279 columns and 8236 nonzeros
Model fingerprint: 0xc9c84ffa
Variable types: 14 continuous, 265 integer (265 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 552 rows and 11 columns
Presolve time: 0.06s
Presolved: 2165 rows, 268 columns, 6667 nonzeros
Variable types: 0 continuous, 268 integer (254 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.100000e+01, 156 iterations, 0.09 seconds (0.01 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   11.00000    0   52    3.00000   11.00000   267%     -    0s
H    0     0                       6.0000000   11.00000  83.3%     -    0s
     0     0   11.00000    0   73    6.00000   11.00000  83.3%     -    0s
     0     0   10.66667    0   79    6.00000   10.66667  77.8%     -    0s
     0     0   10.66667    0   77    6.00000   10.66667  77.8%     -    0s
     0     0   10.50000    0   75    6.00000   10.50000  75.0%     -    1s
     0     0   10.33333    0   74    6.00000   10.33333  72.2%     -    1s
     0     0   10.00000    0   66    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   60    6.00000   10.00000  66.7%     -    1s
     0     0   10.00000    0   60    6.00000   10.00000  66.7%     -    1s
     0     2   10.00000    0   60    6.00000   10.00000  66.7%     -    1s
H   79    65                       7.0000000   10.00000  42.9%  23.0    2s

Cutting planes:
  Gomory: 4
  Cover: 18
  MIR: 52
  Inf proof: 46
  Zero half: 7
  RLT: 20

Explored 2071 nodes (50046 simplex iterations) in 4.14 seconds (1.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 3 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/grafo1080.16.sol'

