
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 16:43:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1224.27.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/grafo1224.27.lp
Reading time = 0.03 seconds
: 17584 rows, 604 columns, 52963 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 17584 rows, 604 columns and 52963 nonzeros
Model fingerprint: 0x6c99415c
Variable types: 16 continuous, 588 integer (588 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 9125 rows and 29 columns
Presolve time: 0.08s
Presolved: 8459 rows, 575 columns, 25661 nonzeros
Variable types: 0 continuous, 575 integer (559 binary)

Root relaxation: objective 1.500000e+01, 222 iterations, 0.03 seconds (0.02 work units)

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

     0     0   15.00000    0   71          -   15.00000      -     -    0s
     0     0   15.00000    0   96          -   15.00000      -     -    0s
H    0     0                       8.0000000   15.00000  87.5%     -    0s
     0     0   15.00000    0   77    8.00000   15.00000  87.5%     -    0s
     0     0   15.00000    0   61    8.00000   15.00000  87.5%     -    0s
     0     0   15.00000    0   57    8.00000   15.00000  87.5%     -    0s
H    0     0                       9.0000000   15.00000  66.7%     -    0s
     0     0   15.00000    0   61    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   70    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0  100    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   75    9.00000   15.00000  66.7%     -    0s
     0     0   15.00000    0   80    9.00000   15.00000  66.7%     -    1s
     0     0   15.00000    0   65    9.00000   15.00000  66.7%     -    1s
     0     0   15.00000    0   55    9.00000   15.00000  66.7%     -    1s
     0     0   15.00000    0   65    9.00000   15.00000  66.7%     -    1s
     0     0   15.00000    0   57    9.00000   15.00000  66.7%     -    1s
     0     2   15.00000    0   57    9.00000   15.00000  66.7%     -    1s
   603   370   12.00000   42  116    9.00000   15.00000  66.7%  61.1    5s
  4115   534     cutoff   31         9.00000   12.00000  33.3%  54.6   10s

Cutting planes:
  Gomory: 8
  Cover: 88
  Clique: 6
  MIR: 139
  StrongCG: 8
  Inf proof: 159
  Zero half: 18
  RLT: 43
  BQP: 1
  PSD: 2

Explored 5994 nodes (302007 simplex iterations) in 11.97 seconds (13.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 8 

Optimal solution found (tolerance 1.00e-04)
Best objective 9.000000000000e+00, best bound 9.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1224.27.sol'

