
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 00:40:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo500.15.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/grafo500.15.lp
Reading time = 0.03 seconds
: 14387 rows, 309 columns, 43324 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 14387 rows, 309 columns and 43324 nonzeros
Model fingerprint: 0xfc87ce02
Variable types: 11 continuous, 298 integer (298 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 11085 rows and 41 columns
Presolve time: 0.06s
Presolved: 3302 rows, 268 columns, 10193 nonzeros
Variable types: 0 continuous, 268 integer (257 binary)

Root relaxation: objective 9.000000e+00, 252 iterations, 0.02 seconds (0.02 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    9.00000    0   55          -    9.00000      -     -    0s
H    0     0                       3.0000000    9.00000   200%     -    0s
     0     0    9.00000    0   72    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
     0     0    9.00000    0   42    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   73    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   73    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   60    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   49    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   68    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   66    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   52    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   58    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   40    7.00000    9.00000  28.6%     -    0s
     0     2    9.00000    0   40    7.00000    9.00000  28.6%     -    1s

Cutting planes:
  Cover: 6
  Clique: 8
  MIR: 20
  Inf proof: 14
  Zero half: 1
  RLT: 39
  BQP: 2

Explored 2508 nodes (88056 simplex iterations) in 3.45 seconds (3.62 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 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/grafo500.15.sol'

