
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:25:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7013.44.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/grafo7013.44.lp
Reading time = 0.12 seconds
: 75996 rows, 2389 columns, 230009 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 75996 rows, 2389 columns and 230009 nonzeros
Model fingerprint: 0x28671a20
Variable types: 49 continuous, 2340 integer (2340 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 7467 rows and 37 columns
Presolve time: 0.54s
Presolved: 68529 rows, 2352 columns, 208031 nonzeros
Variable types: 0 continuous, 2352 integer (2303 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2352 rows, 70881 columns, 210383 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24463    3.5958362e+01   0.000000e+00   2.303564e+03      5s
   27532    3.6000000e+01   0.000000e+00   0.000000e+00      6s
   27532    3.6000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.600000e+01, 27532 iterations, 4.99 seconds (4.14 work units)
Total elapsed time = 14.73s (DegenMoves)
Total elapsed time = 16.14s (DegenMoves)

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

     0     0   36.00000    0  547    8.00000   36.00000   350%     -   16s
H    0     0                      11.0000000   36.00000   227%     -   16s
     0     0   36.00000    0  706   11.00000   36.00000   227%     -   24s
     0     0   36.00000    0  714   11.00000   36.00000   227%     -   25s
H    0     0                      12.0000000   36.00000   200%     -   35s
     0     0   36.00000    0  374   12.00000   36.00000   200%     -   35s
H    0     0                      13.0000000   36.00000   177%     -   35s
H    0     0                      14.0000000   36.00000   157%     -   36s
     0     0   36.00000    0  371   14.00000   36.00000   157%     -   36s
     0     0   36.00000    0  508   14.00000   36.00000   157%     -   48s
     0     0   36.00000    0  470   14.00000   36.00000   157%     -   49s

Cutting planes:
  Cover: 26
  Clique: 3
  MIR: 10
  GUB cover: 3
  Zero half: 1
  RLT: 24
  BQP: 2

Explored 1 nodes (69385 simplex iterations) in 50.09 seconds (42.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 13 12 ... 8

Time limit reached
Best objective 1.400000000000e+01, best bound 3.600000000000e+01, gap 157.1429%

Wrote result file './lp_solutions/grafo7013.44.sol'

