
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:20:23 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo291.20.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/grafo291.20.lp
Reading time = 0.02 seconds
: 4025 rows, 364 columns, 12186 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 4025 rows, 364 columns and 12186 nonzeros
Model fingerprint: 0xc1ee5730
Variable types: 15 continuous, 349 integer (349 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 503 rows and 6 columns
Presolve time: 0.04s
Presolved: 3522 rows, 358 columns, 10740 nonzeros
Variable types: 0 continuous, 358 integer (343 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.100000e+01, 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   11.00000    0   87    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   98    4.00000   11.00000   175%     -    0s
H    0     0                       5.0000000   11.00000   120%     -    0s
     0     0   11.00000    0   95    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   62    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   62    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   46    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   69    5.00000   11.00000   120%     -    0s
     0     0   11.00000    0   33    5.00000   11.00000   120%     -    0s
H    0     0                       7.0000000   11.00000  57.1%     -    0s
     0     0   11.00000    0   36    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   43    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   35    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   43    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   43    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   40    7.00000   11.00000  57.1%     -    1s
     0     0   11.00000    0   45    7.00000   11.00000  57.1%     -    1s
     0     0   11.00000    0   63    7.00000   11.00000  57.1%     -    1s
     0     0   11.00000    0   62    7.00000   11.00000  57.1%     -    1s
     0     0   11.00000    0   50    7.00000   11.00000  57.1%     -    1s
     0     0   11.00000    0   50    7.00000   11.00000  57.1%     -    1s
     0     2   11.00000    0   50    7.00000   11.00000  57.1%     -    1s

Cutting planes:
  Cover: 28
  Clique: 4
  MIR: 72
  StrongCG: 2
  GUB cover: 1
  Inf proof: 58
  Zero half: 14
  RLT: 28
  BQP: 2
  PSD: 1

Explored 2246 nodes (81630 simplex iterations) in 4.55 seconds (2.66 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 5 4 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/grafo291.20.sol'

