
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 08:49:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6340.37.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/grafo6340.37.lp
Reading time = 0.07 seconds
: 43440 rows, 1664 columns, 131592 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 43440 rows, 1664 columns and 131592 nonzeros
Model fingerprint: 0x0e974771
Variable types: 40 continuous, 1624 integer (1624 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 5452 rows and 35 columns
Presolve time: 0.28s
Presolved: 37988 rows, 1629 columns, 115556 nonzeros
Variable types: 0 continuous, 1629 integer (1589 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 20338 rows, 19279 columns, 80256 nonzeros


Root relaxation: objective 3.200000e+01, 2112 iterations, 0.73 seconds (0.64 work units)

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

     0     0   32.00000    0  401   10.00000   32.00000   220%     -    3s
H    0     0                      11.0000000   32.00000   191%     -    3s
H    0     0                      12.0000000   32.00000   167%     -    8s
     0     0   31.00000    0  684   12.00000   31.00000   158%     -    9s
     0     0   31.00000    0  626   12.00000   31.00000   158%     -   11s
H    0     0                      13.0000000   31.00000   138%     -   35s
     0     0   31.00000    0  355   13.00000   31.00000   138%     -   35s
     0     0   31.00000    0  326   13.00000   31.00000   138%     -   35s
     0     0   31.00000    0  347   13.00000   31.00000   138%     -   46s
     0     0   31.00000    0  330   13.00000   31.00000   138%     -   46s
     0     0   31.00000    0  482   13.00000   31.00000   138%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 27
  MIR: 139
  StrongCG: 3
  GUB cover: 5
  Zero half: 25
  RLT: 45

Explored 1 nodes (65425 simplex iterations) in 50.07 seconds (43.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 4

Time limit reached
Best objective 1.300000000000e+01, best bound 3.100000000000e+01, gap 138.4615%

Wrote result file './lp_solutions/grafo6340.37.sol'

