
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:40:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2713.37.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/grafo2713.37.lp
Reading time = 0.22 seconds
: 137691 rows, 2008 columns, 414814 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 137691 rows, 2008 columns and 414814 nonzeros
Model fingerprint: 0xa30ae8c7
Variable types: 43 continuous, 1965 integer (1965 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 59132 rows and 22 columns
Presolve time: 0.91s
Presolved: 78559 rows, 1986 columns, 237964 nonzeros
Variable types: 0 continuous, 1986 integer (1943 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1983 rows, 80542 columns, 239950 nonzeros


Root relaxation: objective 4.300000e+01, 1636 iterations, 0.49 seconds (0.53 work units)
Total elapsed time = 5.80s (DegenMoves)

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

     0     0   43.00000    0  320    6.00000   43.00000   617%     -    6s
     0     0   43.00000    0  574    6.00000   43.00000   617%     -   13s
     0     0   43.00000    0  542    6.00000   43.00000   617%     -   14s
     0     0   43.00000    0  466    6.00000   43.00000   617%     -   28s
H    0     0                       8.0000000   43.00000   437%     -   28s
     0     0   43.00000    0  448    8.00000   43.00000   437%     -   29s
     0     0   43.00000    0  434    8.00000   43.00000   437%     -   47s
H    0     0                      10.0000000   43.00000   330%     -   47s
H    0     0                      12.0000000   43.00000   258%     -   48s
     0     0   43.00000    0  426   12.00000   43.00000   258%     -   48s

Cutting planes:
  Gomory: 1
  Cover: 39
  Clique: 18
  MIR: 139
  StrongCG: 1
  GUB cover: 1
  RLT: 24
  PSD: 1

Explored 1 nodes (41591 simplex iterations) in 50.03 seconds (58.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 12 10 8 6 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.300000000000e+01, gap 258.3333%

Wrote result file './lp_solutions/grafo2713.37.sol'

