
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:57:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2001.12.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/grafo2001.12.lp
Reading time = 0.01 seconds
: 1723 rows, 205 columns, 5215 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 1723 rows, 205 columns and 5215 nonzeros
Model fingerprint: 0xb1b71d50
Variable types: 13 continuous, 192 integer (192 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 499 rows and 15 columns
Presolve time: 0.02s
Presolved: 1224 rows, 190 columns, 3835 nonzeros
Variable types: 0 continuous, 190 integer (177 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 9.000000e+00, 101 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    9.00000    0   70    2.00000    9.00000   350%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0  112    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0  112    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   77    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   77    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   71    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   70    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   74    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   74    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   70    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   64    4.00000    9.00000   125%     -    0s
     0     0    9.00000    0   51    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   56    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   62    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   50    5.00000    9.00000  80.0%     -    0s
     0     2    9.00000    0   50    5.00000    9.00000  80.0%     -    1s
H  218   175                       6.0000000    9.00000  50.0%  85.0    1s
  1210   591    8.00000   10   63    6.00000    9.00000  50.0%  70.1    5s
  4649   593    7.00000   15   63    6.00000    7.50000  25.0%  74.8   10s

Cutting planes:
  Gomory: 1
  Cover: 129
  MIR: 77
  StrongCG: 2
  GUB cover: 4
  Inf proof: 111
  Zero half: 4
  RLT: 33

Explored 6939 nodes (602429 simplex iterations) in 14.98 seconds (10.64 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 6 5 4 ... 1

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/grafo2001.12.sol'

