
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:23:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1240.49.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/grafo1240.49.lp
Reading time = 0.23 seconds
: 132810 rows, 3246 columns, 401393 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 132810 rows, 3246 columns and 401393 nonzeros
Model fingerprint: 0x7fb45eed
Variable types: 58 continuous, 3188 integer (3188 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, 6e+01]
Presolve removed 19921 rows and 1 columns
Presolve time: 0.85s
Presolved: 112889 rows, 3245 columns, 342140 nonzeros
Variable types: 0 continuous, 3245 integer (3187 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3215 rows, 116104 columns, 345385 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15672    5.6894282e+01   0.000000e+00   3.663700e+04      5s
   30738    5.6871902e+01   0.000000e+00   4.746263e+03     10s
   43968    5.6864374e+01   0.000000e+00   1.200009e+04     15s
   56736    5.6861496e+01   0.000000e+00   2.744838e+03     20s
   69960    5.6860986e+01   0.000000e+00   5.595348e-04     25s
   70015    5.7000000e+01   0.000000e+00   0.000000e+00     25s
   70015    5.7000000e+01   0.000000e+00   0.000000e+00     25s
   70015    5.7000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 5.700000e+01, 70015 iterations, 24.13 seconds (18.38 work units)
Total elapsed time = 46.99s (DegenMoves)

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

     0     0   57.00000    0  441    9.00000   57.00000   533%     -   48s
H    0     0                      10.0000000   57.00000   470%     -   48s
     0     0          -    0        10.00000   57.00000   470%     -   50s

Cutting planes:
  Gomory: 39
  Cover: 53
  Clique: 4
  MIR: 265
  StrongCG: 1
  Zero half: 106
  RLT: 59
  BQP: 3

Explored 1 nodes (84235 simplex iterations) in 50.03 seconds (40.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 9 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.700000000000e+01, gap 470.0000%

Wrote result file './lp_solutions/grafo1240.49.sol'

