
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:39:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7717.42.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/grafo7717.42.lp
Reading time = 0.11 seconds
: 68766 rows, 1730 columns, 207368 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 68766 rows, 1730 columns and 207368 nonzeros
Model fingerprint: 0x4afee096
Variable types: 35 continuous, 1695 integer (1695 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 19219 rows and 9 columns
Presolve time: 0.40s
Presolved: 49547 rows, 1721 columns, 149930 nonzeros
Variable types: 0 continuous, 1721 integer (1686 binary)
Root relaxation presolved: 1719 rows, 51266 columns, 151651 nonzeros


Root relaxation: objective 3.300000e+01, 1622 iterations, 0.29 seconds (0.28 work units)

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

     0     0   33.00000    0  379          -   33.00000      -     -    3s
H    0     0                       8.0000000   33.00000   312%     -    5s
     0     0   33.00000    0  457    8.00000   33.00000   312%     -    6s
H    0     0                      10.0000000   33.00000   230%     -    6s
H    0     0                      12.0000000   33.00000   175%     -    6s
     0     0   33.00000    0  452   12.00000   33.00000   175%     -    6s
H    0     0                      13.0000000   33.00000   154%     -   15s
H    0     0                      14.0000000   33.00000   136%     -   15s
H    0     0                      15.0000000   33.00000   120%     -   15s
     0     0   33.00000    0  359   15.00000   33.00000   120%     -   15s
     0     0   33.00000    0  385   15.00000   33.00000   120%     -   15s
     0     0   33.00000    0  377   15.00000   33.00000   120%     -   25s
     0     0   33.00000    0  346   15.00000   33.00000   120%     -   26s
H    0     0                      16.0000000   33.00000   106%     -   32s
     0     0   33.00000    0  230   16.00000   33.00000   106%     -   32s
     0     0   33.00000    0  398   16.00000   33.00000   106%     -   33s
     0     0   33.00000    0  432   16.00000   33.00000   106%     -   39s
     0     0   33.00000    0  383   16.00000   33.00000   106%     -   39s
     0     0   33.00000    0  328   16.00000   33.00000   106%     -   44s
     0     0   33.00000    0  353   16.00000   33.00000   106%     -   45s
     0     0   33.00000    0  399   16.00000   33.00000   106%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 17
  Clique: 13
  MIR: 156
  StrongCG: 1
  Inf proof: 1
  Zero half: 57
  RLT: 50
  BQP: 1

Explored 1 nodes (63285 simplex iterations) in 50.08 seconds (47.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 16 15 14 ... 8

Time limit reached
Best objective 1.600000000000e+01, best bound 3.300000000000e+01, gap 106.2500%

Wrote result file './lp_solutions/grafo7717.42.sol'

