
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:40:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6402.39.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/grafo6402.39.lp
Reading time = 0.13 seconds
: 84769 rows, 1989 columns, 255896 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 84769 rows, 1989 columns and 255896 nonzeros
Model fingerprint: 0x8a048926
Variable types: 43 continuous, 1946 integer (1946 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 24801 rows and 25 columns
Presolve time: 0.58s
Presolved: 59968 rows, 1964 columns, 181848 nonzeros
Variable types: 0 continuous, 1964 integer (1921 binary)
Root relaxation presolved: 1961 rows, 61929 columns, 183812 nonzeros


Root relaxation: objective 4.500000e+01, 2764 iterations, 0.83 seconds (0.94 work units)
Total elapsed time = 7.36s (DegenMoves)
Total elapsed time = 10.40s (DegenMoves)

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

     0     0   45.00000    0  619          -   45.00000      -     -   12s
H    0     0                       8.0000000   45.00000   462%     -   12s
H    0     0                      10.0000000   45.00000   350%     -   12s
H    0     0                      12.0000000   45.00000   275%     -   15s
H    0     0                      13.0000000   45.00000   246%     -   26s
     0     0   45.00000    0  843   13.00000   45.00000   246%     -   26s
     0     0   45.00000    0  783   13.00000   45.00000   246%     -   27s
     0     0   45.00000    0  687   13.00000   45.00000   246%     -   50s

Cutting planes:
  Gomory: 2
  Cover: 10
  Clique: 14
  MIR: 136
  StrongCG: 1
  Zero half: 52
  RLT: 79
  BQP: 1
  PSD: 1

Explored 1 nodes (45974 simplex iterations) in 50.07 seconds (53.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 12 10 8 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.500000000000e+01, gap 246.1538%

Wrote result file './lp_solutions/grafo6402.39.sol'

