
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 12:34:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1389.26.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/grafo1389.26.lp
Reading time = 0.02 seconds
: 10897 rows, 713 columns, 33080 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 10897 rows, 713 columns and 33080 nonzeros
Model fingerprint: 0x4968bc54
Variable types: 24 continuous, 689 integer (689 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 1171 rows and 26 columns
Presolve time: 0.08s
Presolved: 9726 rows, 687 columns, 29788 nonzeros
Variable types: 0 continuous, 687 integer (663 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.300000e+01, 453 iterations, 0.04 seconds (0.03 work units)

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

     0     0   13.00000    0   50    3.00000   13.00000   333%     -    0s
H    0     0                       6.0000000   13.00000   117%     -    0s
H    0     0                       8.0000000   13.00000  62.5%     -    0s
     0     0   13.00000    0   60    8.00000   13.00000  62.5%     -    0s
H    0     0                       9.0000000   13.00000  44.4%     -    0s
     0     0   13.00000    0   67    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   65    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   56    9.00000   13.00000  44.4%     -    0s
     0     0   12.00000    0   75    9.00000   12.00000  33.3%     -    0s
H    0     0                      10.0000000   12.00000  20.0%     -    0s
     0     0   12.00000    0   73   10.00000   12.00000  20.0%     -    0s
     0     0   12.00000    0   57   10.00000   12.00000  20.0%     -    0s
     0     0   12.00000    0   83   10.00000   12.00000  20.0%     -    0s
     0     0   12.00000    0   66   10.00000   12.00000  20.0%     -    0s
     0     0   12.00000    0   73   10.00000   12.00000  20.0%     -    1s
     0     0   12.00000    0   30   10.00000   12.00000  20.0%     -    1s
H    0     0                      11.0000000   12.00000  9.09%     -    1s
     0     0   12.00000    0   47   11.00000   12.00000  9.09%     -    1s
     0     0   12.00000    0   37   11.00000   12.00000  9.09%     -    1s
     0     0   12.00000    0   37   11.00000   12.00000  9.09%     -    1s
     0     2   12.00000    0   21   11.00000   12.00000  9.09%     -    2s
   699    21 infeasible   11        11.00000   12.00000  9.09%   102    5s

Cutting planes:
  Gomory: 1
  Cover: 23
  MIR: 39
  StrongCG: 2
  GUB cover: 1
  Inf proof: 46
  Zero half: 4
  RLT: 14

Explored 835 nodes (96677 simplex iterations) in 5.69 seconds (5.54 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 11 10 9 ... 3

Optimal solution found (tolerance 1.00e-04)
Best objective 1.100000000000e+01, best bound 1.100000000000e+01, gap 0.0000%

Wrote result file './lp_solutions/grafo1389.26.sol'

