
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 11:18:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1082.23.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/grafo1082.23.lp
Reading time = 0.01 seconds
: 4465 rows, 402 columns, 13488 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 4465 rows, 402 columns and 13488 nonzeros
Model fingerprint: 0x30bd95e3
Variable types: 13 continuous, 389 integer (389 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 209 rows and 17 columns
Presolve time: 0.04s
Presolved: 4256 rows, 385 columns, 12946 nonzeros
Variable types: 0 continuous, 385 integer (372 binary)

Root relaxation: objective 8.000000e+00, 82 iterations, 0.01 seconds (0.01 work units)

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

     0     0    8.00000    0   28          -    8.00000      -     -    0s
H    0     0                       5.0000000    8.00000  60.0%     -    0s
H    0     0                       6.0000000    8.00000  33.3%     -    0s
     0     0    8.00000    0   52    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   12    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   12    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0    7    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   13    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   14    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   12    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0    7    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0    7    6.00000    8.00000  33.3%     -    0s
     0     2    8.00000    0    7    6.00000    8.00000  33.3%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 5
  MIR: 17
  Inf proof: 18
  Zero half: 3
  Mod-K: 4
  RLT: 7

Explored 350 nodes (12855 simplex iterations) in 1.23 seconds (0.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 5 

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1082.23.sol'

