
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:28:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6845.40.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/grafo6845.40.lp
Reading time = 0.12 seconds
: 72233 rows, 2011 columns, 218284 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 72233 rows, 2011 columns and 218284 nonzeros
Model fingerprint: 0xfb11cddd
Variable types: 43 continuous, 1968 integer (1968 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 17212 rows and 25 columns
Presolve time: 0.50s
Presolved: 55021 rows, 1986 columns, 167200 nonzeros
Variable types: 0 continuous, 1986 integer (1943 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1977 rows, 56998 columns, 169186 nonzeros


Root relaxation: objective 3.700000e+01, 2363 iterations, 0.50 seconds (0.54 work units)
Total elapsed time = 6.48s (DegenMoves)

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

     0     0   37.00000    0  409    8.00000   37.00000   362%     -    6s
H    0     0                      10.0000000   37.00000   270%     -    7s
     0     0   37.00000    0  813   10.00000   37.00000   270%     -   16s
     0     0   37.00000    0  723   10.00000   37.00000   270%     -   17s
H    0     0                      11.0000000   37.00000   236%     -   45s
     0     0   37.00000    0  871   11.00000   37.00000   236%     -   45s
H    0     0                      12.0000000   37.00000   208%     -   48s
H    0     0                      13.0000000   37.00000   185%     -   48s
     0     0   37.00000    0  822   13.00000   37.00000   185%     -   48s

Cutting planes:
  Gomory: 2
  Lift-and-project: 2
  Cover: 7
  Clique: 6
  MIR: 89
  StrongCG: 1
  Zero half: 53
  RLT: 27
  BQP: 1

Explored 1 nodes (39754 simplex iterations) in 50.35 seconds (41.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 11 ... 8

Time limit reached
Best objective 1.300000000000e+01, best bound 3.700000000000e+01, gap 184.6154%

Wrote result file './lp_solutions/grafo6845.40.sol'

