
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:51:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6056.39.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/grafo6056.39.lp
Reading time = 0.32 seconds
: 199369 rows, 1971 columns, 599676 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 199369 rows, 1971 columns and 599676 nonzeros
Model fingerprint: 0x4e368d7f
Variable types: 42 continuous, 1929 integer (1929 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 2.0000000
Presolve removed 84491 rows and 15 columns
Presolve time: 1.37s
Presolved: 114878 rows, 1956 columns, 346488 nonzeros
Variable types: 0 continuous, 1956 integer (1914 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 1950 rows, 116828 columns, 348444 nonzeros


Root relaxation: objective 3.700000e+01, 3055 iterations, 1.49 seconds (1.86 work units)
Total elapsed time = 13.77s (DegenMoves)
Total elapsed time = 15.50s (DegenMoves)

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

     0     0   37.00000    0  347   10.00000   37.00000   270%     -   16s
     0     0   37.00000    0  624   10.00000   37.00000   270%     -   28s
     0     0   37.00000    0  580   10.00000   37.00000   270%     -   30s
     0     0   37.00000    0  493   10.00000   37.00000   270%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 38
  Cover: 17
  Clique: 21
  MIR: 113
  Zero half: 30
  RLT: 57
  BQP: 2

Explored 1 nodes (28354 simplex iterations) in 50.05 seconds (55.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.700000000000e+01, gap 270.0000%

Wrote result file './lp_solutions/grafo6056.39.sol'

