
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:34:25 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo236.15.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/grafo236.15.lp
Reading time = 0.01 seconds
: 2942 rows, 231 columns, 8880 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 2942 rows, 231 columns and 8880 nonzeros
Model fingerprint: 0x9a01d8dc
Variable types: 12 continuous, 219 integer (219 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 2.0000000
Presolve removed 966 rows and 8 columns
Presolve time: 0.02s
Presolved: 1976 rows, 223 columns, 6048 nonzeros
Variable types: 0 continuous, 223 integer (211 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.000000e+01, 145 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   10.00000    0   61    3.00000   10.00000   233%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0   97    5.00000   10.00000   100%     -    0s
H    0     0                       6.0000000   10.00000  66.7%     -    0s
     0     0   10.00000    0   97    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   33    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   31    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   34    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   27    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   35    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   41    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   36    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   38    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   44    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   44    6.00000   10.00000  66.7%     -    0s
     0     2   10.00000    0   33    6.00000   10.00000  66.7%     -    1s

Cutting planes:
  Gomory: 2
  Cover: 5
  MIR: 23
  Inf proof: 20
  Zero half: 4
  RLT: 22

Explored 708 nodes (16815 simplex iterations) in 1.60 seconds (0.65 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 6 5 3 2 

Optimal solution found (tolerance 1.00e-04)
Best objective 6.000000000000e+00, best bound 6.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo236.15.sol'

