
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:07:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6481.38.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/grafo6481.38.lp
Reading time = 0.18 seconds
: 111746 rows, 1747 columns, 336470 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 111746 rows, 1747 columns and 336470 nonzeros
Model fingerprint: 0xf4ad3457
Variable types: 37 continuous, 1710 integer (1710 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 3.0000000
Presolve removed 44113 rows and 5 columns
Presolve time: 0.67s
Presolved: 67633 rows, 1742 columns, 204444 nonzeros
Variable types: 0 continuous, 1742 integer (1705 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1734 rows, 69367 columns, 206186 nonzeros


Root relaxation: objective 4.400000e+01, 2861 iterations, 1.06 seconds (1.34 work units)
Total elapsed time = 8.91s (DegenMoves)
Total elapsed time = 11.07s (DegenMoves)

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

     0     0   44.00000    0  445    8.00000   44.00000   450%     -   12s
H    0     0                      12.0000000   44.00000   267%     -   12s
H    0     0                      13.0000000   44.00000   238%     -   12s
     0     0   44.00000    0  713   13.00000   44.00000   238%     -   22s
     0     0   44.00000    0  691   13.00000   44.00000   238%     -   23s
     0     0   44.00000    0  377   13.00000   44.00000   238%     -   39s
     0     0   44.00000    0  358   13.00000   44.00000   238%     -   39s
     0     0   44.00000    0  643   13.00000   44.00000   238%     -   50s

Cutting planes:
  Cover: 49
  Clique: 14
  MIR: 122
  GUB cover: 3
  Zero half: 98
  RLT: 71
  BQP: 1

Explored 1 nodes (40052 simplex iterations) in 50.08 seconds (49.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 8 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.400000000000e+01, gap 238.4615%

Wrote result file './lp_solutions/grafo6481.38.sol'

