
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:38:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6374.39.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/grafo6374.39.lp
Reading time = 0.12 seconds
: 77792 rows, 2082 columns, 235112 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 77792 rows, 2082 columns and 235112 nonzeros
Model fingerprint: 0x07b5c189
Variable types: 46 continuous, 2036 integer (2036 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 17281 rows and 36 columns
Presolve time: 0.50s
Presolved: 60511 rows, 2046 columns, 183709 nonzeros
Variable types: 0 continuous, 2046 integer (2000 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2046 rows, 62557 columns, 185755 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   27032    4.5789898e+01   0.000000e+00   4.843405e+02      5s
   32806    4.6000000e+01   0.000000e+00   0.000000e+00      6s
   32806    4.6000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.600000e+01, 32806 iterations, 5.56 seconds (4.59 work units)
Total elapsed time = 15.09s (DegenMoves)

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

     0     0   46.00000    0  551    7.00000   46.00000   557%     -   15s
H    0     0                       8.0000000   46.00000   475%     -   15s
     0     0   46.00000    0  654    8.00000   46.00000   475%     -   24s
     0     0   46.00000    0  645    8.00000   46.00000   475%     -   27s
     0     0   46.00000    0  411    8.00000   46.00000   475%     -   44s
     0     0   46.00000    0  418    8.00000   46.00000   475%     -   45s
     0     0          -    0         8.00000   46.00000   475%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 54
  Clique: 2
  MIR: 162
  StrongCG: 2
  GUB cover: 11
  Zero half: 76
  RLT: 71

Explored 1 nodes (68727 simplex iterations) in 50.06 seconds (43.39 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 -0 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.600000000000e+01, gap 475.0000%

Wrote result file './lp_solutions/grafo6374.39.sol'

