
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:11:37 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6604.38.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/grafo6604.38.lp
Reading time = 0.13 seconds
: 76489 rows, 1667 columns, 230650 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 76489 rows, 1667 columns and 230650 nonzeros
Model fingerprint: 0x7fc9e25d
Variable types: 37 continuous, 1630 integer (1630 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 24579 rows and 7 columns
Presolve time: 0.50s
Presolved: 51910 rows, 1660 columns, 157244 nonzeros
Variable types: 0 continuous, 1660 integer (1623 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1654 rows, 53564 columns, 158904 nonzeros


Root relaxation: objective 3.300000e+01, 1373 iterations, 0.28 seconds (0.27 work units)

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

     0     0   33.00000    0  274    8.00000   33.00000   312%     -    2s
H    0     0                      12.0000000   33.00000   175%     -    3s
     0     0   33.00000    0  584   12.00000   33.00000   175%     -    6s
     0     0   33.00000    0  580   12.00000   33.00000   175%     -    7s
H    0     0                      13.0000000   32.00000   146%     -   17s
     0     0   32.00000    0  340   13.00000   32.00000   146%     -   17s
H    0     0                      14.0000000   32.00000   129%     -   17s
     0     0   32.00000    0  316   14.00000   32.00000   129%     -   18s
     0     0   32.00000    0  311   14.00000   32.00000   129%     -   26s
     0     0   32.00000    0  278   14.00000   32.00000   129%     -   26s
     0     0   32.00000    0  263   14.00000   32.00000   129%     -   34s
     0     0   32.00000    0  271   14.00000   32.00000   129%     -   34s
     0     0   32.00000    0  231   14.00000   32.00000   129%     -   39s
     0     0   32.00000    0  386   14.00000   32.00000   129%     -   40s
     0     0   32.00000    0  319   14.00000   32.00000   129%     -   44s
     0     0   32.00000    0  289   14.00000   32.00000   129%     -   45s
     0     0   32.00000    0  361   14.00000   32.00000   129%     -   49s

Cutting planes:
  Cover: 2
  Clique: 5
  MIR: 16
  RLT: 11

Explored 1 nodes (62588 simplex iterations) in 50.02 seconds (49.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 12 ... 3

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo6604.38.sol'

