
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 12:59:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1687.30.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/grafo1687.30.lp
Reading time = 0.03 seconds
: 13210 rows, 793 columns, 39990 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 13210 rows, 793 columns and 39990 nonzeros
Model fingerprint: 0xf5bdb2d3
Variable types: 23 continuous, 770 integer (770 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 1080 rows and 22 columns
Presolve time: 0.09s
Presolved: 12130 rows, 771 columns, 36926 nonzeros
Variable types: 0 continuous, 771 integer (748 binary)

Root relaxation: objective 1.200000e+01, 147 iterations, 0.03 seconds (0.02 work units)

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

     0     0   12.00000    0   34          -   12.00000      -     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
H    0     0                       9.0000000   12.00000  33.3%     -    0s
     0     0   12.00000    0   63    9.00000   12.00000  33.3%     -    0s
     0     0   12.00000    0   35    9.00000   12.00000  33.3%     -    0s
H    0     0                      10.0000000   12.00000  20.0%     -    0s
     0     0   12.00000    0   23   10.00000   12.00000  20.0%     -    0s
     0     0   11.00000    0   46   10.00000   11.00000  10.0%     -    0s
     0     0   11.00000    0   43   10.00000   11.00000  10.0%     -    0s
     0     0   11.00000    0   40   10.00000   11.00000  10.0%     -    0s
     0     0   11.00000    0   37   10.00000   11.00000  10.0%     -    1s
     0     0   11.00000    0   53   10.00000   11.00000  10.0%     -    1s
     0     0   11.00000    0   51   10.00000   11.00000  10.0%     -    1s
     0     0   11.00000    0   45   10.00000   11.00000  10.0%     -    1s
     0     0   11.00000    0   19   10.00000   11.00000  10.0%     -    1s
     0     2   11.00000    0   17   10.00000   11.00000  10.0%     -    1s
   697    53   11.00000   17   39   10.00000   11.00000  10.0%  88.8    5s

Cutting planes:
  Gomory: 1
  Cover: 20
  Clique: 2
  MIR: 38
  StrongCG: 3
  Inf proof: 51
  Zero half: 1
  RLT: 14

Explored 1071 nodes (102529 simplex iterations) in 6.35 seconds (6.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 8 

Optimal solution found (tolerance 1.00e-04)
Best objective 1.000000000000e+01, best bound 1.000000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo1687.30.sol'

