
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:32:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2687.33.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/grafo2687.33.lp
Reading time = 0.43 seconds
: 256018 rows, 1836 columns, 769696 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 256018 rows, 1836 columns and 769696 nonzeros
Model fingerprint: 0xa2689ea9
Variable types: 41 continuous, 1795 integer (1795 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 127341 rows and 7 columns
Presolve time: 1.85s
Presolved: 128677 rows, 1829 columns, 388173 nonzeros
Variable types: 0 continuous, 1829 integer (1788 binary)
Root relaxation presolved: 1821 rows, 130498 columns, 390002 nonzeros


Root relaxation: objective 4.400000e+01, 2150 iterations, 1.20 seconds (1.42 work units)
Total elapsed time = 11.09s (DegenMoves)

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

     0     0   44.00000    0  460          -   44.00000      -     -   14s
H    0     0                      11.0000000   44.00000   300%     -   14s
     0     0   44.00000    0  748   11.00000   44.00000   300%     -   28s
     0     0   44.00000    0  728   11.00000   44.00000   300%     -   29s
     0     0   44.00000    0  791   11.00000   44.00000   300%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 34
  Cover: 20
  Clique: 16
  MIR: 103
  Zero half: 16
  RLT: 44
  BQP: 5

Explored 1 nodes (24412 simplex iterations) in 50.04 seconds (54.67 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.400000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo2687.33.sol'

