
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 18:50:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2342.18.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/grafo2342.18.lp
Reading time = 0.01 seconds
: 3891 rows, 417 columns, 11896 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 3891 rows, 417 columns and 11896 nonzeros
Model fingerprint: 0x974dcffc
Variable types: 17 continuous, 400 integer (400 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 5.0000000
Presolve removed 605 rows and 50 columns
Presolve time: 0.03s
Presolved: 3286 rows, 367 columns, 10119 nonzeros
Variable types: 0 continuous, 367 integer (350 binary)
Found heuristic solution: objective 7.0000000

Root relaxation: objective 1.300000e+01, 112 iterations, 0.01 seconds (0.01 work units)

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

     0     0   13.00000    0   50    7.00000   13.00000  85.7%     -    0s
H    0     0                       8.0000000   13.00000  62.5%     -    0s
     0     0   13.00000    0   99    8.00000   13.00000  62.5%     -    0s
     0     0   13.00000    0   47    8.00000   13.00000  62.5%     -    0s
     0     0   13.00000    0   54    8.00000   13.00000  62.5%     -    0s
H    0     0                       9.0000000   13.00000  44.4%     -    0s
     0     0   13.00000    0   74    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   75    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   85    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   87    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   57    9.00000   13.00000  44.4%     -    0s
     0     0   13.00000    0   58    9.00000   13.00000  44.4%     -    0s
     0     0   12.66667    0   51    9.00000   12.66667  40.7%     -    0s
     0     0   12.66667    0   50    9.00000   12.66667  40.7%     -    0s
     0     2   12.66667    0   44    9.00000   12.66667  40.7%     -    0s

Cutting planes:
  Gomory: 4
  Cover: 51
  Clique: 7
  MIR: 41
  StrongCG: 1
  Inf proof: 101
  Zero half: 12
  RLT: 30
  BQP: 3
  PSD: 3

Explored 2823 nodes (115143 simplex iterations) in 3.30 seconds (3.44 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 5 

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/grafo2342.18.sol'

