
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:21:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6152.41.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/grafo6152.41.lp
Reading time = 0.16 seconds
: 100203 rows, 2498 columns, 302873 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 100203 rows, 2498 columns and 302873 nonzeros
Model fingerprint: 0xd5756102
Variable types: 51 continuous, 2447 integer (2447 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 21311 rows and 30 columns
Presolve time: 0.70s
Presolved: 78892 rows, 2468 columns, 239499 nonzeros
Variable types: 0 continuous, 2468 integer (2417 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2468 rows, 81360 columns, 241967 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21876    4.7739442e+01   0.000000e+00   4.249596e+04      5s
   44316    4.7729858e+01   0.000000e+00   2.399341e+01     10s
   45744    4.8000000e+01   0.000000e+00   0.000000e+00     10s
   45744    4.8000000e+01   0.000000e+00   0.000000e+00     10s

Root relaxation: objective 4.800000e+01, 45744 iterations, 9.52 seconds (7.76 work units)
Total elapsed time = 23.81s (DegenMoves)
Total elapsed time = 25.35s (DegenMoves)

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

     0     0   48.00000    0  744    5.00000   48.00000   860%     -   27s
     0     0          -    0         5.00000   48.00000   860%     -   50s

Cutting planes:
  Gomory: 27
  Cover: 22
  Clique: 18
  MIR: 111
  GUB cover: 7
  Zero half: 25
  RLT: 37
  BQP: 3

Explored 1 nodes (73624 simplex iterations) in 50.03 seconds (48.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 4.800000000000e+01, gap 860.0000%

Wrote result file './lp_solutions/grafo6152.41.sol'

