
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 15:11:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1135.21.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/grafo1135.21.lp
Reading time = 0.01 seconds
: 6921 rows, 435 columns, 20943 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 6921 rows, 435 columns and 20943 nonzeros
Model fingerprint: 0x7d9f17ad
Variable types: 15 continuous, 420 integer (420 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 2863 rows and 27 columns
Presolve time: 0.03s
Presolved: 4058 rows, 408 columns, 12419 nonzeros
Variable types: 0 continuous, 408 integer (393 binary)

Root relaxation: objective 1.200000e+01, 241 iterations, 0.02 seconds (0.01 work units)

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

     0     0   12.00000    0   35          -   12.00000      -     -    0s
     0     0   12.00000    0   71          -   12.00000      -     -    0s
     0     0   12.00000    0   71          -   12.00000      -     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     0   12.00000    0   67    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   76    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   75    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   63    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   61    7.00000   12.00000  71.4%     -    0s
     0     0   12.00000    0   40    7.00000   12.00000  71.4%     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
     0     0   12.00000    0   67    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   73    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   37    8.00000   12.00000  50.0%     -    0s
     0     2   12.00000    0   37    8.00000   12.00000  50.0%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 61
  Clique: 11
  MIR: 71
  StrongCG: 3
  Inf proof: 125
  Zero half: 7
  RLT: 32
  BQP: 2
  PSD: 1

Explored 2405 nodes (129910 simplex iterations) in 3.92 seconds (4.09 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 8 7 

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/grafo1135.21.sol'

