
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 11:48:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1131.11.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/grafo1131.11.lp
Reading time = 0.01 seconds
: 2827 rows, 152 columns, 8510 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 2827 rows, 152 columns and 8510 nonzeros
Model fingerprint: 0x28535dba
Variable types: 9 continuous, 143 integer (143 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 1335 rows and 0 columns
Presolve time: 0.02s
Presolved: 1492 rows, 152 columns, 4560 nonzeros
Variable types: 0 continuous, 152 integer (143 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 7.000000e+00, 127 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    7.00000    0   50    3.00000    7.00000   133%     -    0s
H    0     0                       4.0000000    7.00000  75.0%     -    0s
     0     0    7.00000    0   61    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   40    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   40    4.00000    7.00000  75.0%     -    0s
H    0     0                       5.0000000    6.66667  33.3%     -    0s
     0     0    6.66667    0   45    5.00000    6.66667  33.3%     -    0s
     0     0    6.66667    0   44    5.00000    6.66667  33.3%     -    0s
     0     0    6.50000    0   33    5.00000    6.50000  30.0%     -    0s
     0     0    6.50000    0   29    5.00000    6.50000  30.0%     -    0s
     0     0    6.50000    0   53    5.00000    6.50000  30.0%     -    0s
     0     0    6.42857    0   49    5.00000    6.42857  28.6%     -    0s
     0     0    6.00000    0   18    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   29    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   25    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   27    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   30    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   40    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   62    5.00000    6.00000  20.0%     -    0s
     0     0    6.00000    0   49    5.00000    6.00000  20.0%     -    0s
     0     2    6.00000    0   47    5.00000    6.00000  20.0%     -    0s

Cutting planes:
  Cover: 15
  Clique: 14
  MIR: 30
  StrongCG: 1
  Zero half: 3
  RLT: 24
  BQP: 1

Explored 728 nodes (25497 simplex iterations) in 1.00 seconds (0.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 5 4 3 1 

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1131.11.sol'

