
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:19:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6996.38.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/grafo6996.38.lp
Reading time = 0.12 seconds
: 73264 rows, 2045 columns, 221513 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 73264 rows, 2045 columns and 221513 nonzeros
Model fingerprint: 0x6fae7553
Variable types: 45 continuous, 2000 integer (2000 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 19722 rows and 49 columns
Presolve time: 0.48s
Presolved: 53542 rows, 1996 columns, 162695 nonzeros
Variable types: 0 continuous, 1996 integer (1951 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1996 rows, 55538 columns, 164691 nonzeros


Root relaxation: objective 5.100000e+01, 1812 iterations, 0.33 seconds (0.31 work units)

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

     0     0   51.00000    0  579    5.00000   51.00000   920%     -    5s
H    0     0                       9.0000000   51.00000   467%     -    5s
H    0     0                      11.0000000   51.00000   364%     -    5s
     0     0   51.00000    0  924   11.00000   51.00000   364%     -   18s
H    0     0                      12.0000000   51.00000   325%     -   18s
     0     0   51.00000    0  889   12.00000   51.00000   325%     -   19s
H    0     0                      14.0000000   51.00000   264%     -   22s
     0     0   51.00000    0  671   14.00000   51.00000   264%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 9
  Clique: 4
  MIR: 158
  StrongCG: 4
  GUB cover: 1
  Zero half: 35
  RLT: 76
  BQP: 1

Explored 1 nodes (44973 simplex iterations) in 50.08 seconds (47.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 12 11 ... 5

Time limit reached
Best objective 1.400000000000e+01, best bound 5.100000000000e+01, gap 264.2857%

Wrote result file './lp_solutions/grafo6996.38.sol'

