
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:20:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2903.15.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/grafo2903.15.lp
Reading time = 0.01 seconds
: 2741 rows, 264 columns, 8308 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 2741 rows, 264 columns and 8308 nonzeros
Model fingerprint: 0xccce6315
Variable types: 14 continuous, 250 integer (250 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 2.0000000
Presolve removed 704 rows and 10 columns
Presolve time: 0.03s
Presolved: 2037 rows, 254 columns, 6277 nonzeros
Variable types: 0 continuous, 254 integer (240 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.100000e+01, 124 iterations, 0.01 seconds (0.00 work units)

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

     0     0   11.00000    0   56    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   79    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   79    4.00000   11.00000   175%     -    0s
H    0     0                       5.0000000   11.00000   120%     -    0s
     0     0   11.00000    0   76    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   85    5.00000   11.00000   120%     -    0s
H    0     0                       6.0000000   11.00000  83.3%     -    0s
     0     0   10.66667    0   81    6.00000   10.66667  77.8%     -    0s
     0     0   10.66667    0   75    6.00000   10.66667  77.8%     -    0s
     0     0   10.66667    0   72    6.00000   10.66667  77.8%     -    0s
     0     0   10.66667    0   76    6.00000   10.66667  77.8%     -    0s
     0     0   10.50000    0   62    6.00000   10.50000  75.0%     -    0s
     0     0   10.33333    0   66    6.00000   10.33333  72.2%     -    0s
     0     0   10.16667    0   59    6.00000   10.16667  69.4%     -    0s
     0     0   10.16667    0   51    6.00000   10.16667  69.4%     -    0s
     0     2   10.16667    0   48    6.00000   10.16667  69.4%     -    0s
* 2643   374              10       7.0000000    9.00000  28.6%  36.5    3s

Cutting planes:
  Gomory: 3
  Cover: 12
  MIR: 70
  StrongCG: 2
  GUB cover: 1
  Inf proof: 70
  Zero half: 6
  RLT: 25

Explored 3070 nodes (105472 simplex iterations) in 4.04 seconds (2.46 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 7 6 5 ... 2

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/grafo2903.15.sol'

