
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 14:32:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2264.15.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/grafo2264.15.lp
Reading time = 0.01 seconds
: 3081 rows, 274 columns, 9342 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 3081 rows, 274 columns and 9342 nonzeros
Model fingerprint: 0x0b9bbfc5
Variable types: 14 continuous, 260 integer (260 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 2.0000000
Presolve removed 1027 rows and 14 columns
Presolve time: 0.02s
Presolved: 2054 rows, 260 columns, 6398 nonzeros
Variable types: 0 continuous, 260 integer (246 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 166 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    9.00000    0   24    4.00000    9.00000   125%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   56    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   49    7.00000    9.00000  28.6%     -    0s
     0     0    8.66667    0   26    7.00000    8.66667  23.8%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   40    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   44    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   33    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     2    8.00000    0   31    7.00000    8.00000  14.3%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 22
  MIR: 25
  StrongCG: 1
  GUB cover: 1
  Inf proof: 42
  Zero half: 4
  RLT: 13

Explored 1109 nodes (46468 simplex iterations) in 1.29 seconds (1.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 4 2 

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2264.15.sol'

