
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:47:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6899.40.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/grafo6899.40.lp
Reading time = 0.14 seconds
: 64283 rows, 1933 columns, 194334 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 64283 rows, 1933 columns and 194334 nonzeros
Model fingerprint: 0x40c1989b
Variable types: 41 continuous, 1892 integer (1892 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]
Presolve removed 14671 rows and 21 columns
Presolve time: 0.55s
Presolved: 49612 rows, 1912 columns, 150804 nonzeros
Variable types: 0 continuous, 1912 integer (1871 binary)
Root relaxation presolved: 29072 rows, 22452 columns, 109724 nonzeros


Root relaxation: objective 3.700000e+01, 4767 iterations, 3.70 seconds (2.77 work units)
Total elapsed time = 12.27s (DegenMoves)

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

     0     0   37.00000    0  770          -   37.00000      -     -   14s
H    0     0                       7.0000000   37.00000   429%     -   14s
H    0     0                       9.0000000   37.00000   311%     -   14s
     0     0   37.00000    0  904    9.00000   37.00000   311%     -   29s
H    0     0                      10.0000000   37.00000   270%     -   29s
     0     0   37.00000    0  869   10.00000   37.00000   270%     -   30s
     0     0   37.00000    0  583   10.00000   37.00000   270%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 6
  Clique: 13
  MIR: 87
  StrongCG: 1
  Zero half: 72
  RLT: 65
  BQP: 2

Explored 1 nodes (36799 simplex iterations) in 50.09 seconds (34.94 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.700000000000e+01, gap 270.0000%

Wrote result file './lp_solutions/grafo6899.40.sol'

