
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:17:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6513.47.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/grafo6513.47.lp
Reading time = 0.11 seconds
: 70936 rows, 2312 columns, 214445 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 70936 rows, 2312 columns and 214445 nonzeros
Model fingerprint: 0x711e0463
Variable types: 45 continuous, 2267 integer (2267 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 6118 rows and 1 columns
Presolve time: 0.39s
Presolved: 64818 rows, 2311 columns, 196411 nonzeros
Variable types: 0 continuous, 2311 integer (2266 binary)
Root relaxation presolved: 2269 rows, 67087 columns, 198722 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27342    3.4964932e+01   0.000000e+00   6.207165e+02      5s
   37240    3.5000000e+01   0.000000e+00   0.000000e+00      7s
   37240    3.5000000e+01   0.000000e+00   0.000000e+00      7s
   37240    3.5000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 3.500000e+01, 37240 iterations, 6.48 seconds (5.63 work units)
Total elapsed time = 17.09s (DegenMoves)

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

     0     0   35.00000    0  689          -   35.00000      -     -   19s
H    0     0                       5.0000000   35.00000   600%     -   19s
H    0     0                       6.0000000   35.00000   483%     -   23s
     0     0   35.00000    0  926    6.00000   35.00000   483%     -   34s
H    0     0                       7.0000000   35.00000   400%     -   35s
     0     0   35.00000    0  912    7.00000   35.00000   400%     -   36s
     0     0   35.00000    0  910    7.00000   35.00000   400%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 10
  Clique: 2
  MIR: 86
  StrongCG: 2
  Zero half: 31
  RLT: 63
  BQP: 2

Explored 1 nodes (68705 simplex iterations) in 50.09 seconds (43.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 6 5 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.500000000000e+01, gap 400.0000%

Wrote result file './lp_solutions/grafo6513.47.sol'

