
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:19:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10044.38.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/grafo10044.38.lp
Reading time = 0.11 seconds
: 69460 rows, 1807 columns, 209813 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 69460 rows, 1807 columns and 209813 nonzeros
Model fingerprint: 0x510b9ba3
Variable types: 40 continuous, 1767 integer (1767 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 18028 rows and 30 columns
Presolve time: 0.49s
Presolved: 51432 rows, 1777 columns, 156129 nonzeros
Variable types: 0 continuous, 1777 integer (1737 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 1777 rows, 53209 columns, 157906 nonzeros


Root relaxation: objective 3.100000e+01, 1815 iterations, 0.33 seconds (0.33 work units)
Total elapsed time = 5.40s (DegenMoves)

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

     0     0   31.00000    0  290   10.00000   31.00000   210%     -    6s
H    0     0                      12.0000000   31.00000   158%     -    6s
H    0     0                      13.0000000   31.00000   138%     -    6s
     0     0   31.00000    0  537   13.00000   31.00000   138%     -    9s
     0     0   31.00000    0  526   13.00000   31.00000   138%     -   10s
     0     0   31.00000    0  374   13.00000   31.00000   138%     -   20s
     0     0   31.00000    0  352   13.00000   31.00000   138%     -   20s
H    0     0                      15.0000000   31.00000   107%     -   27s
     0     0   31.00000    0  238   15.00000   31.00000   107%     -   27s
     0     0   31.00000    0  293   15.00000   31.00000   107%     -   27s
     0     0   31.00000    0  378   15.00000   31.00000   107%     -   38s
     0     0   31.00000    0  364   15.00000   31.00000   107%     -   38s
     0     0   31.00000    0  426   15.00000   31.00000   107%     -   44s
     0     0   31.00000    0  433   15.00000   31.00000   107%     -   44s
     0     0   31.00000    0  459   15.00000   31.00000   107%     -   50s

Cutting planes:
  Cover: 16
  Clique: 14
  MIR: 62
  StrongCG: 1
  GUB cover: 1
  Zero half: 24
  RLT: 45

Explored 1 nodes (61511 simplex iterations) in 50.06 seconds (48.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 15 13 12 10 

Time limit reached
Best objective 1.500000000000e+01, best bound 3.100000000000e+01, gap 106.6667%

Wrote result file './lp_solutions/grafo10044.38.sol'

