
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:20:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10189.38.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/grafo10189.38.lp
Reading time = 0.06 seconds
: 39297 rows, 1666 columns, 119085 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 39297 rows, 1666 columns and 119085 nonzeros
Model fingerprint: 0x08e5b428
Variable types: 36 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]
Presolve removed 6067 rows and 135 columns
Presolve time: 0.25s
Presolved: 33230 rows, 1531 columns, 101004 nonzeros
Variable types: 0 continuous, 1531 integer (1495 binary)
Root relaxation presolved: 17654 rows, 17107 columns, 69852 nonzeros


Root relaxation: objective 3.200000e+01, 2221 iterations, 0.85 seconds (0.64 work units)

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

     0     0   32.00000    0  374          -   32.00000      -     -    4s
H    0     0                      12.0000000   32.00000   167%     -    4s
H    0     0                      13.0000000   32.00000   146%     -    4s
     0     0   32.00000    0  484   13.00000   32.00000   146%     -    7s
H    0     0                      14.0000000   32.00000   129%     -    7s
     0     0   32.00000    0  457   14.00000   32.00000   129%     -    8s
H    0     0                      15.0000000   32.00000   113%     -   22s
     0     0   31.00000    0  429   15.00000   31.00000   107%     -   22s
     0     0   31.00000    0  383   15.00000   31.00000   107%     -   22s
H    0     0                      16.0000000   31.00000  93.8%     -   29s
     0     0   31.00000    0  500   16.00000   31.00000  93.8%     -   29s
     0     0   31.00000    0  489   16.00000   31.00000  93.8%     -   29s
     0     0   31.00000    0  478   16.00000   31.00000  93.8%     -   34s
     0     0   31.00000    0  486   16.00000   31.00000  93.8%     -   35s
H    0     0                      17.0000000   31.00000  82.4%     -   39s
     0     0   31.00000    0  367   17.00000   31.00000  82.4%     -   39s
     0     0   31.00000    0  539   17.00000   31.00000  82.4%     -   41s
     0     0   31.00000    0  508   17.00000   31.00000  82.4%     -   48s
     0     0   31.00000    0  506   17.00000   31.00000  82.4%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 5
  Clique: 5
  MIR: 35
  StrongCG: 1
  GUB cover: 1
  Zero half: 5
  RLT: 33
  BQP: 1

Explored 1 nodes (84831 simplex iterations) in 50.02 seconds (45.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 17 16 15 ... 12

Time limit reached
Best objective 1.700000000000e+01, best bound 3.100000000000e+01, gap 82.3529%

Wrote result file './lp_solutions/grafo10189.38.sol'

