
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:25:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo299.19.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/grafo299.19.lp
Reading time = 0.02 seconds
: 4699 rows, 336 columns, 14167 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 4699 rows, 336 columns and 14167 nonzeros
Model fingerprint: 0xd40abf11
Variable types: 14 continuous, 322 integer (322 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 1297 rows and 13 columns
Presolve time: 0.04s
Presolved: 3402 rows, 323 columns, 10384 nonzeros
Variable types: 0 continuous, 323 integer (309 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.200000e+01, 186 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   12.00000    0   86    4.00000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0  110    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  105    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0   71    5.00000   12.00000   140%     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     0   12.00000    0   53    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   51    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   86    7.00000   12.00000  71.4%     -    0s
     0     0   11.66667    0   82    7.00000   11.66667  66.7%     -    0s
     0     0   11.66667    0   67    7.00000   11.66667  66.7%     -    1s
     0     0   11.66667    0   69    7.00000   11.66667  66.7%     -    1s
     0     0   11.50000    0   89    7.00000   11.50000  64.3%     -    1s
     0     0   11.50000    0   89    7.00000   11.50000  64.3%     -    1s
     0     0   11.00000    0   87    7.00000   11.00000  57.1%     -    1s
     0     0   11.00000    0   80    7.00000   11.00000  57.1%     -    1s
     0     2   11.00000    0   73    7.00000   11.00000  57.1%     -    1s
  1003   527    9.50000   13   75    7.00000   10.00000  42.9%  72.8    5s
  3664   714    8.00000   15   42    7.00000    9.00000  28.6%  68.7   10s
  6452   194 infeasible   15         7.00000    8.00000  14.3%  69.6   15s

Cutting planes:
  Gomory: 1
  Cover: 122
  MIR: 110
  StrongCG: 4
  GUB cover: 1
  Inf proof: 106
  Zero half: 16
  RLT: 46
  Relax-and-lift: 1

Explored 8131 nodes (587785 simplex iterations) in 18.97 seconds (15.36 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 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/grafo299.19.sol'

