
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:45:47 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1884.16.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/grafo1884.16.lp
Reading time = 0.01 seconds
: 3251 rows, 259 columns, 9829 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 3251 rows, 259 columns and 9829 nonzeros
Model fingerprint: 0x869870c5
Variable types: 13 continuous, 246 integer (246 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 920 rows and 2 columns
Presolve time: 0.03s
Presolved: 2331 rows, 257 columns, 7111 nonzeros
Variable types: 0 continuous, 257 integer (244 binary)
Found heuristic solution: objective 6.0000000

Root relaxation: objective 1.000000e+01, 113 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   10.00000    0   57    6.00000   10.00000  66.7%     -    0s
     0     0   10.00000    0   58    6.00000   10.00000  66.7%     -    0s
     0     0    9.00000    0   47    6.00000    9.00000  50.0%     -    0s
     0     0    8.66667    0   47    6.00000    8.66667  44.4%     -    0s
     0     0    8.00000    0   41    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   40    6.00000    8.00000  33.3%     -    0s
     0     0    7.00000    0   38    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   62    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   60    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   58    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   60    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   57    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   35    6.00000    7.00000  16.7%     -    0s
     0     0    7.00000    0   36    6.00000    7.00000  16.7%     -    0s

Cutting planes:
  Gomory: 2
  Cover: 9
  Clique: 2
  MIR: 39
  StrongCG: 1
  Inf proof: 4
  Zero half: 6
  RLT: 12
  BQP: 1

Explored 1 nodes (2615 simplex iterations) in 0.83 seconds (0.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

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/grafo1884.16.sol'

