
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 08:04:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo977.19.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/grafo977.19.lp
Reading time = 0.02 seconds
: 4672 rows, 316 columns, 14077 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 4672 rows, 316 columns and 14077 nonzeros
Model fingerprint: 0xdd481ad2
Variable types: 13 continuous, 303 integer (303 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 1358 rows and 9 columns
Presolve time: 0.05s
Presolved: 3314 rows, 307 columns, 10090 nonzeros
Variable types: 0 continuous, 307 integer (294 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 1.100000e+01, 273 iterations, 0.02 seconds (0.02 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0   11.00000    0   69    1.00000   11.00000  1000%     -    0s
H    0     0                       4.0000000   11.00000   175%     -    0s
     0     0   11.00000    0  114    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0  113    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   71    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   71    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   68    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   68    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   79    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   84    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   71    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   89    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   94    4.00000   11.00000   175%     -    1s
     0     0   11.00000    0   94    4.00000   11.00000   175%     -    1s
H    0     0                       6.0000000   11.00000  83.3%     -    1s
H    0     0                       7.0000000   11.00000  57.1%     -    1s
     0     2   11.00000    0   94    7.00000   11.00000  57.1%     -    1s

Cutting planes:
  Gomory: 1
  Cover: 14
  MIR: 105
  GUB cover: 3
  Inf proof: 4
  Zero half: 12
  RLT: 43

Explored 2176 nodes (55841 simplex iterations) in 4.59 seconds (2.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 7 6 4 ... -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/grafo977.19.sol'

