
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:50:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo771.19.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/grafo771.19.lp
Reading time = 0.01 seconds
: 2676 rows, 268 columns, 8059 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 2676 rows, 268 columns and 8059 nonzeros
Model fingerprint: 0x80362383
Variable types: 10 continuous, 258 integer (258 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 3.0000000
Presolve removed 285 rows and 4 columns
Presolve time: 0.02s
Presolved: 2391 rows, 264 columns, 7237 nonzeros
Variable types: 0 continuous, 264 integer (254 binary)

Root relaxation: objective 9.000000e+00, 75 iterations, 0.01 seconds (0.00 work units)

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

     0     0    9.00000    0   44    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   51    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   50    5.00000    9.00000  80.0%     -    0s
     0     0    8.66667    0   23    5.00000    8.66667  73.3%     -    0s
     0     0    8.50000    0   38    5.00000    8.50000  70.0%     -    0s
     0     0    8.00000    0   38    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   38    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   42    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   32    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   32    5.00000    8.00000  60.0%     -    0s
     0     0    8.00000    0   32    5.00000    8.00000  60.0%     -    0s
     0     2    8.00000    0   32    5.00000    8.00000  60.0%     -    0s
  6244    19     cutoff   19         5.00000    6.00000  20.0%  23.5    5s

Cutting planes:
  Gomory: 7
  Cover: 58
  Clique: 1
  MIR: 25
  StrongCG: 1
  Inf proof: 88
  Zero half: 9
  RLT: 17

Explored 6504 nodes (156349 simplex iterations) in 5.14 seconds (3.34 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 5 4 3 

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/grafo771.19.sol'

