
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:18:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6032.42.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/grafo6032.42.lp
Reading time = 0.11 seconds
: 56595 rows, 2149 columns, 171468 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 56595 rows, 2149 columns and 171468 nonzeros
Model fingerprint: 0x6c3cd170
Variable types: 44 continuous, 2105 integer (2105 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 6.0000000
Presolve removed 4665 rows and 126 columns
Presolve time: 0.54s
Presolved: 51930 rows, 2023 columns, 157736 nonzeros
Variable types: 0 continuous, 2023 integer (1979 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 27206 rows, 26747 columns, 108288 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5402    3.6999786e+01   1.397486e+02   0.000000e+00      5s
    5931    3.7000000e+01   0.000000e+00   0.000000e+00      5s
    5931    3.7000000e+01   0.000000e+00   0.000000e+00      5s

Root relaxation: objective 3.700000e+01, 5931 iterations, 4.86 seconds (3.08 work units)
Total elapsed time = 11.45s (DegenMoves)

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

     0     0   37.00000    0  574   13.00000   37.00000   185%     -   12s
H    0     0                      14.0000000   37.00000   164%     -   15s
     0     0   37.00000    0  937   14.00000   37.00000   164%     -   34s
     0     0   37.00000    0  908   14.00000   37.00000   164%     -   34s
     0     0          -    0        14.00000   37.00000   164%     -   50s

Cutting planes:
  Gomory: 6
  Cover: 5
  Clique: 2
  MIR: 88
  StrongCG: 2
  GUB cover: 1
  Zero half: 64
  RLT: 51

Explored 1 nodes (31283 simplex iterations) in 50.07 seconds (30.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 6 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.700000000000e+01, gap 164.2857%

Wrote result file './lp_solutions/grafo6032.42.sol'

