
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 12:30:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1336.25.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/grafo1336.25.lp
Reading time = 0.02 seconds
: 8755 rows, 541 columns, 26454 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 8755 rows, 541 columns and 26454 nonzeros
Model fingerprint: 0xbe26aa5f
Variable types: 17 continuous, 524 integer (524 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 1806 rows and 8 columns
Presolve time: 0.06s
Presolved: 6949 rows, 533 columns, 21137 nonzeros
Variable types: 0 continuous, 533 integer (516 binary)

Root relaxation: objective 1.500000e+01, 164 iterations, 0.02 seconds (0.01 work units)

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

     0     0   15.00000    0   68          -   15.00000      -     -    0s
H    0     0                       6.0000000   15.00000   150%     -    0s
H    0     0                       7.0000000   15.00000   114%     -    0s
     0     0   15.00000    0  103    7.00000   15.00000   114%     -    0s
     0     0   15.00000    0  100    7.00000   15.00000   114%     -    0s
     0     0   14.83333    0   97    7.00000   14.83333   112%     -    0s
H    0     0                       9.0000000   14.83333  64.8%     -    0s
     0     0   14.00000    0   94    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   81    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   89    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   73    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   86    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   78    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   97    9.00000   14.00000  55.6%     -    0s
     0     0   14.00000    0   87    9.00000   14.00000  55.6%     -    1s
     0     0   14.00000    0   62    9.00000   14.00000  55.6%     -    1s
     0     2   14.00000    0   44    9.00000   14.00000  55.6%     -    1s
  1429   895   12.90000   18  129    9.00000   14.00000  55.6%  33.7    5s
  2491  1145   11.00000   25  125    9.00000   13.00000  44.4%  43.5   10s
  5277  1359   11.00000   39   55    9.00000   11.66667  29.6%  45.0   15s

Cutting planes:
  MIR: 4
  StrongCG: 1
  Inf proof: 4
  Zero half: 3
  RLT: 2

Explored 8509 nodes (322369 simplex iterations) in 18.35 seconds (18.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 9 9 9 ... 6

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1336.25.sol'

