
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:25:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo909.47.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/grafo909.47.lp
Reading time = 0.13 seconds
: 85818 rows, 2117 columns, 258782 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 85818 rows, 2117 columns and 258782 nonzeros
Model fingerprint: 0x31dfec46
Variable types: 39 continuous, 2078 integer (2078 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 19730 rows and 9 columns
Presolve time: 0.52s
Presolved: 66088 rows, 2108 columns, 199809 nonzeros
Variable types: 0 continuous, 2108 integer (2069 binary)
Root relaxation presolved: 2105 rows, 68193 columns, 201917 nonzeros


Root relaxation: objective 4.000000e+01, 24060 iterations, 3.59 seconds (2.77 work units)
Total elapsed time = 8.20s (DegenMoves)

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

     0     0   40.00000    0  206          -   40.00000      -     -    8s
H    0     0                       9.0000000   40.00000   344%     -    9s
H    0     0                      11.0000000   40.00000   264%     -    9s
     0     0   40.00000    0  471   11.00000   40.00000   264%     -   11s
H    0     0                      15.0000000   40.00000   167%     -   12s
     0     0   40.00000    0  460   15.00000   40.00000   167%     -   12s
     0     0   40.00000    0  339   15.00000   40.00000   167%     -   20s
     0     0   40.00000    0  271   15.00000   40.00000   167%     -   20s
     0     0   40.00000    0  223   15.00000   40.00000   167%     -   26s
     0     0   40.00000    0  247   15.00000   40.00000   167%     -   26s
H    0     0                      16.0000000   40.00000   150%     -   45s
H    0     0                      17.0000000   40.00000   135%     -   45s
     0     0   40.00000    0  316   17.00000   40.00000   135%     -   45s
     0     0   40.00000    0  287   17.00000   40.00000   135%     -   46s
     0     0          -    0        17.00000   40.00000   135%     -   50s

Cutting planes:
  Cover: 24
  Clique: 15
  MIR: 94
  StrongCG: 3
  Zero half: 25
  RLT: 62
  BQP: 4

Explored 1 nodes (75404 simplex iterations) in 50.11 seconds (47.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 16 15 ... 9

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

Wrote result file './lp_solutions/grafo909.47.sol'

