
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:38:04 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3187.39.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/grafo3187.39.lp
Reading time = 0.30 seconds
: 181904 rows, 2361 columns, 547837 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 181904 rows, 2361 columns and 547837 nonzeros
Model fingerprint: 0x47fcff4c
Variable types: 47 continuous, 2314 integer (2314 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 79821 rows and 58 columns
Presolve time: 1.24s
Presolved: 102083 rows, 2303 columns, 308852 nonzeros
Variable types: 0 continuous, 2303 integer (2256 binary)
Root relaxation presolved: 2303 rows, 104386 columns, 311155 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20267    5.3733863e+01   0.000000e+00   1.537009e+05      5s
   43671    5.2674483e+01   0.000000e+00   7.392997e+03     10s
   67026    5.2661956e+01   0.000000e+00   5.582692e+03     15s
   91362    5.2658512e+01   0.000000e+00   2.451867e+00     20s
   92116    5.3000000e+01   0.000000e+00   0.000000e+00     20s
   92116    5.3000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 5.300000e+01, 92116 iterations, 18.77 seconds (13.48 work units)
Total elapsed time = 36.47s (DegenMoves)
Total elapsed time = 40.01s (DegenMoves)

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

     0     0   53.00000    0  611          -   53.00000      -     -   41s
H    0     0                       6.0000000   53.00000   783%     -   44s
     0     0          -    0         6.00000   53.00000   783%     -   50s

Cutting planes:
  Gomory: 36
  Cover: 60
  Clique: 46
  MIR: 201
  GUB cover: 2
  Zero half: 44
  RLT: 80
  BQP: 3

Explored 1 nodes (109688 simplex iterations) in 50.02 seconds (46.92 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.300000000000e+01, gap 783.3333%

Wrote result file './lp_solutions/grafo3187.39.sol'

