
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:31:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6020.39.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/grafo6020.39.lp
Reading time = 0.10 seconds
: 63015 rows, 1935 columns, 190586 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 63015 rows, 1935 columns and 190586 nonzeros
Model fingerprint: 0x2ec3d120
Variable types: 43 continuous, 1892 integer (1892 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 11916 rows and 16 columns
Presolve time: 0.40s
Presolved: 51099 rows, 1919 columns, 155167 nonzeros
Variable types: 0 continuous, 1919 integer (1876 binary)
Root relaxation presolved: 29619 rows, 23399 columns, 112207 nonzeros


Root relaxation: objective 4.500000e+01, 4968 iterations, 2.86 seconds (2.71 work units)
Total elapsed time = 9.45s (DegenMoves)
Total elapsed time = 10.15s (DegenMoves)

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

     0     0   45.00000    0  531          -   45.00000      -     -   10s
H    0     0                       5.0000000   45.00000   800%     -   10s
H    0     0                       6.0000000   45.00000   650%     -   10s
     0     0   45.00000    0  860    6.00000   45.00000   650%     -   21s
H    0     0                      10.0000000   45.00000   350%     -   22s
     0     0   45.00000    0  846   10.00000   45.00000   350%     -   22s
     0     0   45.00000    0  660   10.00000   45.00000   350%     -   49s
     0     0   45.00000    0  643   10.00000   45.00000   350%     -   49s

Cutting planes:
  Cover: 27
  Clique: 3
  MIR: 37
  GUB cover: 2
  Zero half: 11
  RLT: 30
  Relax-and-lift: 1

Explored 1 nodes (48012 simplex iterations) in 50.07 seconds (45.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 6 5 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.500000000000e+01, gap 350.0000%

Wrote result file './lp_solutions/grafo6020.39.sol'

