
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 02:18:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo817.18.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/grafo817.18.lp
Reading time = 0.01 seconds
: 2705 rows, 294 columns, 8179 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 2705 rows, 294 columns and 8179 nonzeros
Model fingerprint: 0xd4d8070b
Variable types: 14 continuous, 280 integer (280 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 1.0000000
Presolve removed 247 rows and 15 columns
Presolve time: 0.03s
Presolved: 2458 rows, 279 columns, 7552 nonzeros
Variable types: 0 continuous, 279 integer (265 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 6.000000e+00, 161 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    6.00000    0   39    3.00000    6.00000   100%     -    0s
H    0     0                       4.0000000    6.00000  50.0%     -    0s
H    0     0                       5.0000000    6.00000  20.0%     -    0s
     0     0    6.00000    0   42    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   42    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   48    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   39    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   39    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   44    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   42    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   24    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   35    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   42    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   25    5.00000    6.00000  20.0%     -    0s
     0     2    6.00000    0   25    5.00000    6.00000  20.0%     -    0s
   600   336    6.00000   33   44    5.00000    6.00000  20.0%  53.4    5s
  1942   601 infeasible   33         5.00000    6.00000  20.0%  74.3   11s
  2464   768    6.00000   22   67    5.00000    6.00000  20.0%  75.0   15s
  5611   886 infeasible   23         5.00000    6.00000  20.0%  73.0   20s
  6857   581 infeasible   23         5.00000    6.00000  20.0%  71.3   25s

Cutting planes:
  Gomory: 1
  Lift-and-project: 1
  Cover: 2
  MIR: 1
  Flow cover: 4
  GUB cover: 1
  RLT: 4

Explored 8705 nodes (599727 simplex iterations) in 28.27 seconds (12.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 5 4 3 1 

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/grafo817.18.sol'

