
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 02:48:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3696.38.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/grafo3696.38.lp
Reading time = 0.13 seconds
: 84514 rows, 2048 columns, 255287 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 84514 rows, 2048 columns and 255287 nonzeros
Model fingerprint: 0xcd0a7ccc
Variable types: 45 continuous, 2003 integer (2003 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 22072 rows and 28 columns
Presolve time: 0.60s
Presolved: 62442 rows, 2020 columns, 189555 nonzeros
Variable types: 0 continuous, 2020 integer (1975 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2020 rows, 64462 columns, 191575 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27393    3.8749561e+01   0.000000e+00   4.025387e+02      5s
   29799    3.9000000e+01   0.000000e+00   0.000000e+00      5s
   29799    3.9000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.900000e+01, 29799 iterations, 4.77 seconds (4.30 work units)
Total elapsed time = 12.34s (DegenMoves)
Total elapsed time = 15.24s (DegenMoves)

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

     0     0   39.00000    0  558    7.00000   39.00000   457%     -   15s
H    0     0                       9.0000000   39.00000   333%     -   15s
H    0     0                      10.0000000   39.00000   290%     -   18s
     0     0   39.00000    0  766   10.00000   39.00000   290%     -   26s
     0     0   39.00000    0  721   10.00000   39.00000   290%     -   30s
H    0     0                      11.0000000   39.00000   255%     -   47s
     0     0   39.00000    0  385   11.00000   39.00000   255%     -   47s
H    0     0                      13.0000000   39.00000   200%     -   47s
     0     0   39.00000    0  385   13.00000   39.00000   200%     -   48s

Cutting planes:
  Cover: 28
  Clique: 20
  MIR: 103
  StrongCG: 1
  GUB cover: 3
  RLT: 10

Explored 1 nodes (63607 simplex iterations) in 50.08 seconds (44.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 11 10 ... 7

Time limit reached
Best objective 1.300000000000e+01, best bound 3.900000000000e+01, gap 200.0000%

Wrote result file './lp_solutions/grafo3696.38.sol'

