
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:14:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo616.19.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/grafo616.19.lp
Reading time = 0.12 seconds
: 73448 rows, 805 columns, 220943 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 73448 rows, 805 columns and 220943 nonzeros
Model fingerprint: 0xeb2e9440
Variable types: 27 continuous, 778 integer (778 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]
Found heuristic solution: objective -0.0000000
Presolve removed 36010 rows and 12 columns
Presolve time: 0.52s
Presolved: 37438 rows, 793 columns, 113139 nonzeros
Variable types: 0 continuous, 793 integer (766 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 793 rows, 38231 columns, 113932 nonzeros


Root relaxation: objective 2.900000e+01, 1072 iterations, 0.26 seconds (0.31 work units)

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

     0     0   29.00000    0  278    6.00000   29.00000   383%     -    2s
     0     0   29.00000    0  468    6.00000   29.00000   383%     -    6s
     0     0   29.00000    0  441    6.00000   29.00000   383%     -    7s
H    0     0                       7.0000000   29.00000   314%     -   17s
     0     0   29.00000    0  265    7.00000   29.00000   314%     -   17s
     0     0   29.00000    0  349    7.00000   29.00000   314%     -   18s
     0     0   29.00000    0  434    7.00000   29.00000   314%     -   24s
     0     0   29.00000    0  407    7.00000   29.00000   314%     -   25s
     0     0   29.00000    0  327    7.00000   29.00000   314%     -   31s
     0     0   29.00000    0  329    7.00000   29.00000   314%     -   32s
     0     0   29.00000    0  438    7.00000   29.00000   314%     -   40s
     0     0   29.00000    0  409    7.00000   29.00000   314%     -   40s
H    0     0                       8.0000000   29.00000   262%     -   47s
     0     0   29.00000    0  406    8.00000   29.00000   262%     -   47s
     0     0   29.00000    0  294    8.00000   29.00000   262%     -   50s

Cutting planes:
  Clique: 13
  MIR: 14
  Zero half: 1
  RLT: 18
  BQP: 3

Explored 1 nodes (51508 simplex iterations) in 50.02 seconds (50.51 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 8 7 6 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 2.900000000000e+01, gap 262.5000%

Wrote result file './lp_solutions/grafo616.19.sol'

