
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:07:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2058.28.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/grafo2058.28.lp
Reading time = 0.02 seconds
: 9351 rows, 607 columns, 28239 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 9351 rows, 607 columns and 28239 nonzeros
Model fingerprint: 0xefc2723f
Variable types: 17 continuous, 590 integer (590 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 962 rows and 4 columns
Presolve time: 0.06s
Presolved: 8389 rows, 603 columns, 25443 nonzeros
Variable types: 0 continuous, 603 integer (586 binary)

Root relaxation: objective 1.200000e+01, 99 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   12.00000    0   39          -   12.00000      -     -    0s
     0     0   12.00000    0   82          -   12.00000      -     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     0   12.00000    0   54    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   33    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   32    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   48    7.00000   12.00000  71.4%     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
     0     0   12.00000    0   48    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   30    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   28    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   45    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   46    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   45    8.00000   12.00000  50.0%     -    1s
     0     0   12.00000    0   45    8.00000   12.00000  50.0%     -    1s
     0     2   12.00000    0   36    8.00000   12.00000  50.0%     -    1s
  1312   395 infeasible   20         8.00000   11.47143  43.4%  45.5    5s

Cutting planes:
  Gomory: 8
  Cover: 31
  Clique: 1
  MIR: 35
  StrongCG: 2
  Inf proof: 96
  Zero half: 5
  RLT: 20
  BQP: 2
  PSD: 1

Explored 2693 nodes (132114 simplex iterations) in 6.91 seconds (6.49 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 7 

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2058.28.sol'

