
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:22:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6119.42.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/grafo6119.42.lp
Reading time = 0.21 seconds
: 105623 rows, 2390 columns, 318944 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 105623 rows, 2390 columns and 318944 nonzeros
Model fingerprint: 0x4f435d52
Variable types: 47 continuous, 2343 integer (2343 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 28989 rows and 33 columns
Presolve time: 0.86s
Presolved: 76634 rows, 2357 columns, 232444 nonzeros
Variable types: 0 continuous, 2357 integer (2310 binary)
Root relaxation presolved: 2354 rows, 78988 columns, 234801 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18908    4.6907931e+01   0.000000e+00   5.106840e+04      5s
   37784    4.6896812e+01   0.000000e+00   2.252720e+02     10s
   39029    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   39029    4.7000000e+01   0.000000e+00   0.000000e+00     10s
   39029    4.7000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.700000e+01, 39029 iterations, 9.33 seconds (5.97 work units)
Total elapsed time = 21.03s (DegenMoves)

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

     0     0   47.00000    0  534          -   47.00000      -     -   24s
H    0     0                       8.0000000   47.00000   487%     -   28s
     0     0   47.00000    0  806    8.00000   47.00000   487%     -   38s
H    0     0                      12.0000000   47.00000   292%     -   39s
     0     0   47.00000    0  740   12.00000   47.00000   292%     -   41s
     0     0          -    0        12.00000   47.00000   292%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 43
  Cover: 13
  Clique: 11
  MIR: 129
  StrongCG: 1
  GUB cover: 2
  Zero half: 23
  RLT: 49
  BQP: 2

Explored 1 nodes (57378 simplex iterations) in 50.10 seconds (32.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 8 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.700000000000e+01, gap 291.6667%

Wrote result file './lp_solutions/grafo6119.42.sol'

