
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:25:46 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6847.37.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/grafo6847.37.lp
Reading time = 0.12 seconds
: 76183 rows, 1974 columns, 230248 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 76183 rows, 1974 columns and 230248 nonzeros
Model fingerprint: 0xceaab21c
Variable types: 44 continuous, 1930 integer (1930 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 6.0000000
Presolve removed 22707 rows and 41 columns
Presolve time: 0.49s
Presolved: 53476 rows, 1933 columns, 162419 nonzeros
Variable types: 0 continuous, 1933 integer (1889 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1933 rows, 55409 columns, 164352 nonzeros


Root relaxation: objective 4.700000e+01, 2366 iterations, 0.46 seconds (0.48 work units)
Total elapsed time = 5.05s (DegenMoves)

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

     0     0   47.00000    0  516   11.00000   47.00000   327%     -    5s
H    0     0                      13.0000000   47.00000   262%     -    5s
     0     0   47.00000    0  917   13.00000   47.00000   262%     -   16s
H    0     0                      14.0000000   47.00000   236%     -   16s
     0     0   47.00000    0  839   14.00000   47.00000   236%     -   18s
     0     0   46.00000    0  432   14.00000   46.00000   229%     -   32s
     0     0   46.00000    0  411   14.00000   46.00000   229%     -   32s
H    0     0                      15.0000000   46.00000   207%     -   46s
     0     0   46.00000    0  526   15.00000   46.00000   207%     -   46s
     0     0   46.00000    0  537   15.00000   46.00000   207%     -   46s
     0     0          -    0        15.00000   46.00000   207%     -   50s

Cutting planes:
  Cover: 31
  Clique: 9
  MIR: 217
  StrongCG: 1
  GUB cover: 1
  Zero half: 78
  RLT: 73
  BQP: 1

Explored 1 nodes (47455 simplex iterations) in 50.07 seconds (42.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 15 14 13 ... 6

Time limit reached
Best objective 1.500000000000e+01, best bound 4.600000000000e+01, gap 206.6667%

Wrote result file './lp_solutions/grafo6847.37.sol'

