
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:55:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2457.37.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/grafo2457.37.lp
Reading time = 0.09 seconds
: 56518 rows, 1844 columns, 171046 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 56518 rows, 1844 columns and 171046 nonzeros
Model fingerprint: 0xccb82153
Variable types: 42 continuous, 1802 integer (1802 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 2.0000000
Presolve removed 10535 rows and 28 columns
Presolve time: 0.40s
Presolved: 45983 rows, 1816 columns, 139917 nonzeros
Variable types: 0 continuous, 1816 integer (1774 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 26733 rows, 21066 columns, 101417 nonzeros


Root relaxation: objective 3.900000e+01, 5037 iterations, 2.91 seconds (2.60 work units)
Total elapsed time = 7.27s (DegenMoves)

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

     0     0   39.00000    0  569    5.00000   39.00000   680%     -    8s
H    0     0                       8.0000000   39.00000   388%     -    8s
H    0     0                       9.0000000   39.00000   333%     -    8s
     0     0   39.00000    0  790    9.00000   39.00000   333%     -   18s
     0     0   39.00000    0  762    9.00000   39.00000   333%     -   18s
H    0     0                      10.0000000   39.00000   290%     -   42s
     0     0   39.00000    0  383   10.00000   39.00000   290%     -   42s
     0     0   39.00000    0  352   10.00000   39.00000   290%     -   42s
     0     0   39.00000    0  619   10.00000   39.00000   290%     -   50s

Cutting planes:
  Cover: 37
  Clique: 4
  MIR: 146
  StrongCG: 2
  GUB cover: 8
  Zero half: 89
  RLT: 51
  PSD: 1

Explored 1 nodes (53991 simplex iterations) in 50.04 seconds (43.26 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 10 9 8 ... 2

Time limit reached
Best objective 1.000000000000e+01, best bound 3.900000000000e+01, gap 290.0000%

Wrote result file './lp_solutions/grafo2457.37.sol'

