
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:36:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2282.20.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/grafo2282.20.lp
Reading time = 0.01 seconds
: 4697 rows, 468 columns, 14346 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 4697 rows, 468 columns and 14346 nonzeros
Model fingerprint: 0xeb28d2a3
Variable types: 19 continuous, 449 integer (449 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 235 rows and 18 columns
Presolve time: 0.03s
Presolved: 4462 rows, 450 columns, 13683 nonzeros
Variable types: 0 continuous, 450 integer (431 binary)

Root relaxation: objective 1.500000e+01, 243 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   15.00000    0   46          -   15.00000      -     -    0s
H    0     0                       9.0000000   15.00000  66.7%     -    0s
     0     0   15.00000    0  102    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   72    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   72    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   39    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   59    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   50    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   48    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   53    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   82    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   56    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   84    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   59    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   59    9.00000   15.00000  66.7%     -    0s
     0     2   15.00000    0   59    9.00000   15.00000  66.7%     -    1s
  1198   286 infeasible   18         9.00000   15.00000  66.7%  82.7    5s

Cutting planes:
  Gomory: 5
  Cover: 43
  Clique: 11
  MIR: 39
  StrongCG: 3
  Inf proof: 143
  Zero half: 8
  RLT: 47
  Relax-and-lift: 1
  BQP: 1
  PSD: 1

Explored 2920 nodes (221343 simplex iterations) in 7.27 seconds (8.31 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2282.20.sol'

