
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:27:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2266.15.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/grafo2266.15.lp
Reading time = 0.01 seconds
: 2191 rows, 225 columns, 6609 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 2191 rows, 225 columns and 6609 nonzeros
Model fingerprint: 0x365d9823
Variable types: 12 continuous, 213 integer (213 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 1.0000000
Presolve removed 557 rows and 9 columns
Presolve time: 0.02s
Presolved: 1634 rows, 216 columns, 5022 nonzeros
Variable types: 0 continuous, 216 integer (204 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 8.000000e+00, 130 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    8.00000    0   59    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   64    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   54    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   52    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   33    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   39    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   48    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   52    4.00000    8.00000   100%     -    0s
     0     0    7.50000    0   39    4.00000    7.50000  87.5%     -    0s
     0     0    7.50000    0   38    4.00000    7.50000  87.5%     -    0s
     0     0    7.50000    0   33    4.00000    7.50000  87.5%     -    0s
     0     0    7.00000    0   40    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   39    4.00000    7.00000  75.0%     -    0s
     0     2    7.00000    0   27    4.00000    7.00000  75.0%     -    0s
*  149    92              20       5.0000000    7.00000  40.0%  29.3    0s

Cutting planes:
  Gomory: 4
  Cover: 16
  MIR: 47
  StrongCG: 1
  GUB cover: 1
  Inf proof: 36
  Zero half: 3
  RLT: 24
  Relax-and-lift: 1

Explored 895 nodes (40247 simplex iterations) in 1.96 seconds (1.03 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 5 4 1 

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2266.15.sol'

