
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:07:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11309.36.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/grafo11309.36.lp
Reading time = 0.12 seconds
: 64221 rows, 1883 columns, 194348 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 64221 rows, 1883 columns and 194348 nonzeros
Model fingerprint: 0x128a4437
Variable types: 44 continuous, 1839 integer (1839 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 8.0000000
Presolve removed 16646 rows and 47 columns
Presolve time: 0.48s
Presolved: 47575 rows, 1836 columns, 144747 nonzeros
Variable types: 0 continuous, 1836 integer (1792 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 27191 rows, 22220 columns, 103979 nonzeros


Root relaxation: objective 3.700000e+01, 1289 iterations, 0.37 seconds (0.29 work units)

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

     0     0   37.00000    0  270   11.00000   37.00000   236%     -    1s
H    0     0                      14.0000000   37.00000   164%     -    2s
     0     0   37.00000    0  512   14.00000   37.00000   164%     -    5s
H    0     0                      15.0000000   37.00000   147%     -    6s
     0     0   36.00000    0  489   15.00000   36.00000   140%     -    6s
H    0     0                      16.0000000   36.00000   125%     -   28s
H    0     0                      17.0000000   36.00000   112%     -   28s
H    0     0                      18.0000000   36.00000   100%     -   28s
     0     0   36.00000    0  436   18.00000   36.00000   100%     -   28s
     0     0   36.00000    0  356   18.00000   36.00000   100%     -   29s
     0     0   36.00000    0  410   18.00000   36.00000   100%     -   34s
     0     0   36.00000    0  444   18.00000   36.00000   100%     -   35s
     0     0   36.00000    0  394   18.00000   36.00000   100%     -   40s
     0     0   36.00000    0  389   18.00000   36.00000   100%     -   41s
     0     0   36.00000    0  506   18.00000   36.00000   100%     -   50s

Cutting planes:
  Cover: 22
  Clique: 15
  MIR: 134
  StrongCG: 4
  Zero half: 35
  RLT: 58
  BQP: 1
  PSD: 1

Explored 1 nodes (49773 simplex iterations) in 50.05 seconds (35.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 18 17 16 ... 8

Time limit reached
Best objective 1.800000000000e+01, best bound 3.600000000000e+01, gap 100.0000%

Wrote result file './lp_solutions/grafo11309.36.sol'

