
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:09:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4065.39.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/grafo4065.39.lp
Reading time = 0.12 seconds
: 74901 rows, 1878 columns, 226129 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 74901 rows, 1878 columns and 226129 nonzeros
Model fingerprint: 0x43a6591d
Variable types: 41 continuous, 1837 integer (1837 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 19818 rows and 13 columns
Presolve time: 0.47s
Presolved: 55083 rows, 1865 columns, 167032 nonzeros
Variable types: 0 continuous, 1865 integer (1824 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 1865 rows, 56948 columns, 168897 nonzeros


Root relaxation: objective 3.600000e+01, 2287 iterations, 0.54 seconds (0.53 work units)
Total elapsed time = 6.13s (DegenMoves)

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

     0     0   36.00000    0  415    7.00000   36.00000   414%     -    6s
H    0     0                       9.0000000   36.00000   300%     -    6s
H    0     0                      11.0000000   36.00000   227%     -    8s
     0     0   36.00000    0  607   11.00000   36.00000   227%     -   15s
     0     0   36.00000    0  637   11.00000   36.00000   227%     -   17s
H    0     0                      13.0000000   36.00000   177%     -   45s
     0     0   36.00000    0  379   13.00000   36.00000   177%     -   45s
     0     0   36.00000    0  524   13.00000   36.00000   177%     -   47s
     0     0          -    0        13.00000   36.00000   177%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 37
  Clique: 23
  MIR: 98
  StrongCG: 3
  GUB cover: 4
  Zero half: 52
  RLT: 53
  BQP: 3

Explored 1 nodes (45698 simplex iterations) in 50.07 seconds (47.33 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 11 9 ... 2

Time limit reached
Best objective 1.300000000000e+01, best bound 3.600000000000e+01, gap 176.9231%

Wrote result file './lp_solutions/grafo4065.39.sol'

