
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:04:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1057.16.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/grafo1057.16.lp
Reading time = 0.01 seconds
: 3621 rows, 265 columns, 10927 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 3621 rows, 265 columns and 10927 nonzeros
Model fingerprint: 0x28fbdbf6
Variable types: 13 continuous, 252 integer (252 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 1.0000000
Presolve removed 1205 rows and 9 columns
Presolve time: 0.04s
Presolved: 2416 rows, 256 columns, 7399 nonzeros
Variable types: 0 continuous, 256 integer (243 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.100000e+01, 144 iterations, 0.01 seconds (0.01 work units)

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

     0     0   11.00000    0   77    3.00000   11.00000   267%     -    0s
H    0     0                       4.0000000   11.00000   175%     -    0s
H    0     0                       5.0000000   11.00000   120%     -    0s
     0     0   11.00000    0   87    5.00000   11.00000   120%     -    0s
H    0     0                       6.0000000   11.00000  83.3%     -    0s
     0     0   11.00000    0   84    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   77    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   79    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   81    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   50    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   60    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   45    6.00000   11.00000  83.3%     -    2s
     0     0   11.00000    0   45    6.00000   11.00000  83.3%     -    2s
     0     0   11.00000    0   73    6.00000   11.00000  83.3%     -    2s
     0     0   11.00000    0   67    6.00000   11.00000  83.3%     -    2s
     0     0   10.66667    0   65    6.00000   10.66667  77.8%     -    2s
     0     0   10.66667    0   65    6.00000   10.66667  77.8%     -    2s
     0     2   10.66667    0   59    6.00000   10.66667  77.8%     -    2s
H  280   171                       7.0000000   10.66667  52.4%  43.7    3s
   596   206     cutoff   10         7.00000   10.66667  52.4%  36.1    5s

Cutting planes:
  Gomory: 2
  Cover: 19
  MIR: 84
  StrongCG: 8
  Inf proof: 35
  Zero half: 4
  RLT: 40

Explored 1117 nodes (37548 simplex iterations) in 5.72 seconds (1.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 7 6 5 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1057.16.sol'

