
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:16:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2150.16.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/grafo2150.16.lp
Reading time = 0.01 seconds
: 3452 rows, 310 columns, 10462 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 3452 rows, 310 columns and 10462 nonzeros
Model fingerprint: 0x9baef1d9
Variable types: 16 continuous, 294 integer (294 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 -0.0000000
Presolve removed 823 rows and 18 columns
Presolve time: 0.03s
Presolved: 2629 rows, 292 columns, 8131 nonzeros
Variable types: 0 continuous, 292 integer (276 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 1.000000e+01, 173 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   74    1.00000   10.00000   900%     -    0s
H    0     0                       2.0000000   10.00000   400%     -    0s
     0     0   10.00000    0  120    2.00000   10.00000   400%     -    0s
H    0     0                       3.0000000   10.00000   233%     -    0s
     0     0   10.00000    0  117    3.00000   10.00000   233%     -    0s
     0     0    9.66667    0   47    3.00000    9.66667   222%     -    0s
H    0     0                       5.0000000    9.66667  93.3%     -    0s
     0     0    9.66667    0   46    5.00000    9.66667  93.3%     -    0s
     0     0    9.66667    0   58    5.00000    9.66667  93.3%     -    0s
     0     0    9.50000    0   52    5.00000    9.50000  90.0%     -    0s
     0     0    9.50000    0   40    5.00000    9.50000  90.0%     -    0s
     0     0    9.50000    0   43    5.00000    9.50000  90.0%     -    0s
     0     0    9.00000    0   38    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   39    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   46    5.00000    9.00000  80.0%     -    1s
H    0     0                       6.0000000    9.00000  50.0%     -    1s
     0     0    9.00000    0   57    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   56    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   52    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   54    6.00000    9.00000  50.0%     -    1s
     0     0    9.00000    0   42    6.00000    9.00000  50.0%     -    1s
H    0     0                       7.0000000    9.00000  28.6%     -    1s
     0     2    9.00000    0   34    7.00000    9.00000  28.6%     -    1s

Cutting planes:
  Cover: 11
  MIR: 47
  StrongCG: 1
  GUB cover: 1
  Inf proof: 2
  Zero half: 8
  RLT: 27

Explored 231 nodes (9554 simplex iterations) in 1.95 seconds (0.79 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 7 6 5 ... -0

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/grafo2150.16.sol'

