
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:17:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10021.39.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/grafo10021.39.lp
Reading time = 0.14 seconds
: 88583 rows, 1926 columns, 267275 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 88583 rows, 1926 columns and 267275 nonzeros
Model fingerprint: 0xb8eb5cf6
Variable types: 40 continuous, 1886 integer (1886 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 37309 rows and 76 columns
Presolve time: 0.48s
Presolved: 51274 rows, 1850 columns, 155620 nonzeros
Variable types: 0 continuous, 1850 integer (1810 binary)
Root relaxation presolved: 1845 rows, 53119 columns, 157470 nonzeros


Root relaxation: objective 4.000000e+01, 1622 iterations, 0.33 seconds (0.30 work units)

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

     0     0   40.00000    0  338          -   40.00000      -     -    4s
H    0     0                      13.0000000   40.00000   208%     -    4s
H    0     0                      14.0000000   40.00000   186%     -   10s
H    0     0                      15.0000000   40.00000   167%     -   10s
H    0     0                      16.0000000   40.00000   150%     -   10s
     0     0   40.00000    0  661   16.00000   40.00000   150%     -   10s
     0     0   40.00000    0  605   16.00000   40.00000   150%     -   11s
H    0     0                      17.0000000   40.00000   135%     -   24s
     0     0   40.00000    0  600   17.00000   40.00000   135%     -   24s
     0     0   40.00000    0  566   17.00000   40.00000   135%     -   24s
     0     0   40.00000    0  437   17.00000   40.00000   135%     -   41s
     0     0   40.00000    0  416   17.00000   40.00000   135%     -   42s
     0     0   40.00000    0  480   17.00000   40.00000   135%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 31
  Clique: 11
  MIR: 112
  StrongCG: 2
  Zero half: 69
  RLT: 68
  BQP: 1

Explored 1 nodes (54088 simplex iterations) in 50.08 seconds (44.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 16 15 ... 13

Time limit reached
Best objective 1.700000000000e+01, best bound 4.000000000000e+01, gap 135.2941%

Wrote result file './lp_solutions/grafo10021.39.sol'

