
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov  1 21:50:44 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1021.14.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/grafo1021.14.lp
Reading time = 0.10 seconds
: 2412 rows, 204 columns, 7266 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 2412 rows, 204 columns and 7266 nonzeros
Model fingerprint: 0xa2162661
Variable types: 10 continuous, 194 integer (194 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 1037 rows and 9 columns
Presolve time: 0.31s
Presolved: 1375 rows, 195 columns, 4259 nonzeros
Variable types: 0 continuous, 195 integer (185 binary)

Root relaxation: objective 8.000000e+00, 137 iterations, 0.09 seconds (0.00 work units)

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

     0     0    8.00000    0   67    2.00000    8.00000   300%     -    0s
H    0     0                       4.0000000    8.00000   100%     -    0s
     0     0    8.00000    0   82    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   82    4.00000    8.00000   100%     -    1s
     0     0    8.00000    0   30    4.00000    8.00000   100%     -    2s
H    0     0                       5.0000000    7.00000  40.0%     -    3s
     0     0    7.00000    0   31    5.00000    7.00000  40.0%     -    3s
     0     0    7.00000    0   30    5.00000    7.00000  40.0%     -    3s
     0     0    7.00000    0   50    5.00000    7.00000  40.0%     -    3s
     0     0    7.00000    0   36    5.00000    7.00000  40.0%     -    4s
     0     0    7.00000    0   51    5.00000    7.00000  40.0%     -    4s
     0     0    7.00000    0   56    5.00000    7.00000  40.0%     -    4s
     0     0    7.00000    0   60    5.00000    7.00000  40.0%     -    4s
     0     0    7.00000    0   45    5.00000    7.00000  40.0%     -    5s
     0     2    7.00000    0   20    5.00000    7.00000  40.0%     -    6s
   393   214     cutoff   21         5.00000    7.00000  40.0%  32.6   10s
  3291    16    6.00000   32   42    5.00000    6.00000  20.0%  31.7   15s

Cutting planes:
  Cover: 87
  Clique: 6
  MIR: 47
  StrongCG: 3
  GUB cover: 2
  Inf proof: 89
  Zero half: 3
  RLT: 24
  PSD: 2

Explored 3484 nodes (113968 simplex iterations) in 15.33 seconds (1.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 5 4 2 

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1021.14.sol'

