
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 18:55:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2432.15.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/grafo2432.15.lp
Reading time = 0.01 seconds
: 2771 rows, 346 columns, 8488 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 2771 rows, 346 columns and 8488 nonzeros
Model fingerprint: 0xad5c2903
Variable types: 16 continuous, 330 integer (330 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 4.0000000
Presolve removed 559 rows and 57 columns
Presolve time: 0.02s
Presolved: 2212 rows, 289 columns, 6886 nonzeros
Variable types: 0 continuous, 289 integer (273 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.100000e+01, 126 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   11.00000    0   54    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0  142    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0  142    6.00000   11.00000  83.3%     -    0s
H    0     0                       7.0000000   11.00000  57.1%     -    0s
     0     0   11.00000    0   62    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   58    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   66    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   62    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   61    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   77    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   62    7.00000   11.00000  57.1%     -    0s
     0     2   11.00000    0   43    7.00000   11.00000  57.1%     -    0s
H 1389   649                       8.0000000   11.00000  37.5%  65.3    2s
  1926   795    9.92857   19  129    8.00000   11.00000  37.5%  68.4    5s
  3652   889 infeasible   36         8.00000   11.00000  37.5%  72.6   10s
  6827  1436    9.97321   25  137    8.00000   11.00000  37.5%  77.4   15s
  9593  1387 infeasible   34         8.00000   10.00000  25.0%  80.4   20s
 14071    94 infeasible   26         8.00000    9.00000  12.5%  82.9   25s

Cutting planes:
  Gomory: 1
  Lift-and-project: 11
  Cover: 2
  Flow cover: 5
  Inf proof: 4
  Zero half: 4
  RLT: 9

Explored 15013 nodes (1248034 simplex iterations) in 25.35 seconds (22.07 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 8 8 8 ... 4

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/grafo2432.15.sol'

