
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 01:54:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo572.17.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/grafo572.17.lp
Reading time = 0.01 seconds
: 2076 rows, 244 columns, 6261 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 2076 rows, 244 columns and 6261 nonzeros
Model fingerprint: 0x2a8c2097
Variable types: 12 continuous, 232 integer (232 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 193 rows and 12 columns
Presolve time: 0.02s
Presolved: 1883 rows, 232 columns, 5775 nonzeros
Variable types: 0 continuous, 232 integer (220 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 5.000000e+00, 60 iterations, 0.01 seconds (0.00 work units)

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

     0     0    5.00000    0   23    2.00000    5.00000   150%     -    0s
H    0     0                       3.0000000    5.00000  66.7%     -    0s
H    0     0                       4.0000000    5.00000  25.0%     -    0s
     0     0    5.00000    0   13    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   19    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   36    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   37    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   19    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   26    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   22    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   22    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   16    4.00000    5.00000  25.0%     -    0s
   159   132    5.00000   25   55    4.00000    5.00000  25.0%  39.5    5s
   945   590 infeasible   27         4.00000    5.00000  25.0%  62.7   11s
  2183   789    5.00000   23   48    4.00000    5.00000  25.0%  62.9   15s
  3182   838    5.00000   22   20    4.00000    5.00000  25.0%  62.9   20s
  5469   165 infeasible   24         4.00000    5.00000  25.0%  59.3   25s

Cutting planes:
  Gomory: 2
  Cover: 1
  MIR: 1
  Flow cover: 1
  RLT: 2

Explored 6243 nodes (367782 simplex iterations) in 26.16 seconds (5.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 2 1 

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo572.17.sol'

