
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:27:08 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11462.39.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/grafo11462.39.lp
Reading time = 0.12 seconds
: 76491 rows, 2210 columns, 231492 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 76491 rows, 2210 columns and 231492 nonzeros
Model fingerprint: 0x26dd24b5
Variable types: 46 continuous, 2164 integer (2164 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 19587 rows and 100 columns
Presolve time: 0.48s
Presolved: 56904 rows, 2110 columns, 173117 nonzeros
Variable types: 0 continuous, 2110 integer (2064 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2109 rows, 59013 columns, 175227 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26526    3.6925923e+01   0.000000e+00   8.038261e+03      5s
   32914    3.7000000e+01   0.000000e+00   0.000000e+00      6s
   32914    3.7000000e+01   0.000000e+00   0.000000e+00      6s
   32914    3.7000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.700000e+01, 32914 iterations, 5.70 seconds (5.01 work units)
Total elapsed time = 12.59s (DegenMoves)
Total elapsed time = 15.44s (DegenMoves)

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

     0     0   37.00000    0  436   13.00000   37.00000   185%     -   17s
H    0     0                      16.0000000   37.00000   131%     -   17s
     0     0   37.00000    0  674   16.00000   37.00000   131%     -   28s
     0     0   37.00000    0  743   16.00000   37.00000   131%     -   30s
     0     0   37.00000    0  471   16.00000   37.00000   131%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 26
  Cover: 11
  Clique: 16
  MIR: 66
  StrongCG: 1
  Zero half: 34
  RLT: 62
  BQP: 7

Explored 1 nodes (70653 simplex iterations) in 50.07 seconds (44.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 13 

Time limit reached
Best objective 1.600000000000e+01, best bound 3.700000000000e+01, gap 131.2500%

Wrote result file './lp_solutions/grafo11462.39.sol'

