
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:59:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3335.40.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/grafo3335.40.lp
Reading time = 0.21 seconds
: 131884 rows, 2350 columns, 397739 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 131884 rows, 2350 columns and 397739 nonzeros
Model fingerprint: 0xb0bbc4da
Variable types: 48 continuous, 2302 integer (2302 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 44494 rows and 23 columns
Presolve time: 0.99s
Presolved: 87390 rows, 2327 columns, 264819 nonzeros
Variable types: 0 continuous, 2327 integer (2279 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2324 rows, 89714 columns, 267146 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23511    4.6981048e+01   0.000000e+00   3.687413e+04      5s
   48113    4.6959800e+01   0.000000e+00   1.939085e+04     10s
   71098    4.6954065e+01   0.000000e+00   1.222575e+03     15s
   86596    4.7000000e+01   0.000000e+00   0.000000e+00     18s
   86596    4.7000000e+01   0.000000e+00   0.000000e+00     18s
   86596    4.7000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 4.700000e+01, 86596 iterations, 17.35 seconds (14.38 work units)
Total elapsed time = 31.75s (DegenMoves)
Total elapsed time = 40.28s (DegenMoves)

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

     0     0   47.00000    0  346    7.00000   47.00000   571%     -   41s
     0     0          -    0         7.00000   47.00000   571%     -   50s

Cutting planes:
  Gomory: 28
  Cover: 53
  Clique: 28
  MIR: 112
  GUB cover: 2
  Zero half: 47
  RLT: 39
  BQP: 3

Explored 1 nodes (112475 simplex iterations) in 50.02 seconds (55.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 4.700000000000e+01, gap 571.4286%

Wrote result file './lp_solutions/grafo3335.40.sol'

