
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 16:40:12 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo377.13.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/grafo377.13.lp
Reading time = 0.01 seconds
: 3204 rows, 284 columns, 9750 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 3204 rows, 284 columns and 9750 nonzeros
Model fingerprint: 0x424fb8e4
Variable types: 16 continuous, 268 integer (268 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]
Presolve removed 1081 rows and 17 columns
Presolve time: 0.03s
Presolved: 2123 rows, 267 columns, 6665 nonzeros
Variable types: 0 continuous, 267 integer (251 binary)

Root relaxation: objective 1.000000e+01, 108 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   10.00000    0   42          -   10.00000      -     -    0s
H    0     0                       3.0000000   10.00000   233%     -    0s
H    0     0                       4.0000000   10.00000   150%     -    0s
     0     0   10.00000    0  109    4.00000   10.00000   150%     -    0s
     0     0    9.00000    0   97    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0  100    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   38    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   56    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   44    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   40    5.00000    9.00000  80.0%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   52    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   52    6.00000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     2    9.00000    0   48    7.00000    9.00000  28.6%     -    0s
H  109   100                       8.0000000    9.00000  12.5%  25.2    0s

Cutting planes:
  Gomory: 1
  Cover: 10
  MIR: 22
  StrongCG: 1
  GUB cover: 3
  Inf proof: 54
  Zero half: 5
  RLT: 24
  BQP: 1

Explored 1133 nodes (36181 simplex iterations) in 1.41 seconds (1.23 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 7 6 ... 3

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo377.13.sol'

