
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:37:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6400.45.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/grafo6400.45.lp
Reading time = 0.18 seconds
: 112418 rows, 2743 columns, 339684 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 112418 rows, 2743 columns and 339684 nonzeros
Model fingerprint: 0x5c4cf87b
Variable types: 53 continuous, 2690 integer (2690 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 22480 rows and 1 columns
Presolve time: 0.64s
Presolved: 89938 rows, 2742 columns, 272691 nonzeros
Variable types: 0 continuous, 2742 integer (2689 binary)
Root relaxation presolved: 2709 rows, 92647 columns, 275433 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19276    5.1726159e+01   0.000000e+00   4.126953e+04      5s
   40660    5.1677583e+01   0.000000e+00   1.604440e+04     10s
   47955    5.2000000e+01   0.000000e+00   0.000000e+00     12s
   47955    5.2000000e+01   0.000000e+00   0.000000e+00     12s
   47955    5.2000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.200000e+01, 47955 iterations, 11.09 seconds (9.17 work units)
Total elapsed time = 23.82s (DegenMoves)
Total elapsed time = 26.40s (DegenMoves)

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

     0     0   52.00000    0  638          -   52.00000      -     -   27s
H    0     0                       3.0000000   52.00000  1633%     -   30s
     0     0   52.00000    0 1071    3.00000   52.00000  1633%     -   45s
H    0     0                      10.0000000   52.00000   420%     -   45s
     0     0   52.00000    0 1046   10.00000   52.00000   420%     -   48s

Cutting planes:
  Gomory: 2
  Cover: 17
  Clique: 10
  MIR: 167
  StrongCG: 1
  Zero half: 5
  RLT: 22
  BQP: 1

Explored 1 nodes (74317 simplex iterations) in 50.03 seconds (49.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.200000000000e+01, gap 420.0000%

Wrote result file './lp_solutions/grafo6400.45.sol'

