
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Thu Nov 21 05:50:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6118.34.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/grafo6118.34.lp
Reading time = 0.08 seconds
: 46329 rows, 1577 columns, 140247 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 46329 rows, 1577 columns and 140247 nonzeros
Model fingerprint: 0x6a60d76e
Variable types: 40 continuous, 1537 integer (1537 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 8754 rows and 34 columns
Presolve time: 0.31s
Presolved: 37575 rows, 1543 columns, 114316 nonzeros
Variable types: 0 continuous, 1543 integer (1503 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 21711 rows, 17407 columns, 82588 nonzeros


Root relaxation: objective 3.600000e+01, 2639 iterations, 1.07 seconds (1.02 work units)

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

     0     0   36.00000    0  306    6.00000   36.00000   500%     -    4s
H    0     0                       7.0000000   36.00000   414%     -    4s
     0     0   36.00000    0  580    7.00000   36.00000   414%     -    7s
     0     0   36.00000    0  572    7.00000   36.00000   414%     -    8s
     0     0   36.00000    0  389    7.00000   36.00000   414%     -   17s
     0     0   36.00000    0  379    7.00000   36.00000   414%     -   17s
H    0     0                       8.0000000   36.00000   350%     -   26s
     0     0   36.00000    0  316    8.00000   36.00000   350%     -   26s
     0     0   36.00000    0  390    8.00000   36.00000   350%     -   27s
     0     0   36.00000    0  385    8.00000   36.00000   350%     -   42s
     0     0   36.00000    0  363    8.00000   36.00000   350%     -   42s
     0     0   36.00000    0  541    8.00000   36.00000   350%     -   50s

Cutting planes:
  Lift-and-project: 1
  Cover: 25
  MIR: 135
  GUB cover: 3
  Zero half: 35
  RLT: 61

Explored 1 nodes (68985 simplex iterations) in 50.04 seconds (44.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.600000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo6118.34.sol'

