
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:07:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7345.38.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/grafo7345.38.lp
Reading time = 0.22 seconds
: 137562 rows, 1938 columns, 414223 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 137562 rows, 1938 columns and 414223 nonzeros
Model fingerprint: 0x5624f97e
Variable types: 42 continuous, 1896 integer (1896 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 53221 rows and 32 columns
Presolve time: 1.10s
Presolved: 84341 rows, 1906 columns, 254935 nonzeros
Variable types: 0 continuous, 1906 integer (1864 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1906 rows, 86247 columns, 256841 nonzeros


Root relaxation: objective 4.100000e+01, 1756 iterations, 0.50 seconds (0.56 work units)
Total elapsed time = 6.32s (DegenMoves)

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

     0     0   41.00000    0  504   11.00000   41.00000   273%     -    6s
     0     0   41.00000    0  740   11.00000   41.00000   273%     -   17s
     0     0   41.00000    0  716   11.00000   41.00000   273%     -   18s
     0     0   41.00000    0  503   11.00000   41.00000   273%     -   42s
H    0     0                      12.0000000   41.00000   242%     -   43s
     0     0   41.00000    0  507   12.00000   41.00000   242%     -   45s
     0     0          -    0        12.00000   41.00000   242%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 25
  Clique: 22
  MIR: 95
  StrongCG: 3
  GUB cover: 2
  Zero half: 131
  RLT: 53
  BQP: 3

Explored 1 nodes (36281 simplex iterations) in 50.02 seconds (61.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 11 3 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.100000000000e+01, gap 241.6667%

Wrote result file './lp_solutions/grafo7345.38.sol'

