
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:20:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo221.15.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/grafo221.15.lp
Reading time = 0.01 seconds
: 3334 rows, 219 columns, 10036 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 3334 rows, 219 columns and 10036 nonzeros
Model fingerprint: 0xff6b98d1
Variable types: 11 continuous, 208 integer (208 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 1293 rows and 6 columns
Presolve time: 0.03s
Presolved: 2041 rows, 213 columns, 6193 nonzeros
Variable types: 0 continuous, 213 integer (202 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.000000e+01, 171 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   64    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   67    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   40    4.00000   10.00000   150%     -    0s
     0     0    9.66667    0   39    4.00000    9.66667   142%     -    0s
     0     0    9.50000    0   55    4.00000    9.50000   138%     -    0s
     0     0    9.00000    0   50    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   38    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   42    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   53    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   53    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   54    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   43    5.00000    9.00000  80.0%     -    0s
     0     2    9.00000    0   43    5.00000    9.00000  80.0%     -    0s

Cutting planes:
  Cover: 30
  Clique: 6
  MIR: 88
  StrongCG: 2
  Inf proof: 69
  Zero half: 4
  RLT: 37

Explored 3954 nodes (127580 simplex iterations) in 4.36 seconds (2.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 5 4 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/grafo221.15.sol'

