
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 15:47:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo274.17.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/grafo274.17.lp
Reading time = 0.01 seconds
: 3532 rows, 305 columns, 10695 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 3532 rows, 305 columns and 10695 nonzeros
Model fingerprint: 0x9d0cbd85
Variable types: 14 continuous, 291 integer (291 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 3.0000000
Presolve removed 1022 rows and 11 columns
Presolve time: 0.03s
Presolved: 2510 rows, 294 columns, 7754 nonzeros
Variable types: 0 continuous, 294 integer (280 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 116 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   51    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   74    5.00000    9.00000  80.0%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   72    6.00000    9.00000  50.0%     -    0s
     0     0    8.00000    0   93    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   61    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   69    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   63    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   76    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   62    6.00000    8.00000  33.3%     -    0s
     0     0    8.00000    0   62    6.00000    8.00000  33.3%     -    0s
     0     2    8.00000    0   60    6.00000    8.00000  33.3%     -    0s
* 2804   272              22       7.0000000    8.00000  14.3%  54.5    3s

Cutting planes:
  Gomory: 3
  Cover: 89
  Clique: 4
  MIR: 42
  StrongCG: 3
  GUB cover: 1
  Inf proof: 73
  Zero half: 6
  RLT: 27
  Relax-and-lift: 1
  BQP: 2
  PSD: 2

Explored 3335 nodes (180519 simplex iterations) in 3.86 seconds (4.18 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 7 6 5 ... 3

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/grafo274.17.sol'

