
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:04:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5727.43.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/grafo5727.43.lp
Reading time = 0.22 seconds
: 140941 rows, 2675 columns, 425214 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 140941 rows, 2675 columns and 425214 nonzeros
Model fingerprint: 0x3e6650ef
Variable types: 52 continuous, 2623 integer (2623 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 -0.0000000
Presolve removed 40828 rows and 18 columns
Presolve time: 0.96s
Presolved: 100113 rows, 2657 columns, 303214 nonzeros
Variable types: 0 continuous, 2657 integer (2605 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2645 rows, 102758 columns, 305871 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19189    5.8776901e+01   0.000000e+00   1.097205e+05      5s
   40591    5.8702965e+01   0.000000e+00   1.930159e+04     10s
   61521    5.8690841e+01   0.000000e+00   6.169086e+02     15s
   68582    5.9000000e+01   0.000000e+00   0.000000e+00     17s
   68582    5.9000000e+01   0.000000e+00   0.000000e+00     17s
   68582    5.9000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 5.900000e+01, 68582 iterations, 15.83 seconds (12.93 work units)
Total elapsed time = 39.76s (DegenMoves)
Total elapsed time = 43.92s (DegenMoves)
Total elapsed time = 47.48s (DegenMoves)

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

     0     0   59.00000    0  788   12.00000   59.00000   392%     -   48s
H    0     0                      13.0000000   59.00000   354%     -   48s

Cutting planes:
  Cover: 41
  Clique: 18
  MIR: 247
  GUB cover: 3

Explored 1 nodes (90697 simplex iterations) in 50.03 seconds (52.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 -0 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.900000000000e+01, gap 353.8462%

Wrote result file './lp_solutions/grafo5727.43.sol'

