
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 16:13:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2906.21.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/grafo2906.21.lp
Reading time = 0.01 seconds
: 4373 rows, 427 columns, 13302 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 4373 rows, 427 columns and 13302 nonzeros
Model fingerprint: 0xf42d97b5
Variable types: 17 continuous, 410 integer (410 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 184 rows and 16 columns
Presolve time: 0.03s
Presolved: 4189 rows, 411 columns, 12805 nonzeros
Variable types: 0 continuous, 411 integer (394 binary)

Root relaxation: objective 9.000000e+00, 137 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   20          -    9.00000      -     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   50    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   50    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   18    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0    8    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0    8    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   13    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   12    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0    8    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0    7    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   16    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   16    7.00000    9.00000  28.6%     -    0s
     0     2    9.00000    0   16    7.00000    9.00000  28.6%     -    0s

Cutting planes:
  Cover: 12
  Clique: 7
  MIR: 30
  StrongCG: 2
  Inf proof: 16
  Zero half: 2
  RLT: 10
  BQP: 2
  PSD: 1

Explored 510 nodes (26963 simplex iterations) in 1.84 seconds (1.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

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/grafo2906.21.sol'

