
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:52:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5233.37.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/grafo5233.37.lp
Reading time = 0.19 seconds
: 114645 rows, 1954 columns, 345658 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 114645 rows, 1954 columns and 345658 nonzeros
Model fingerprint: 0xb05cab79
Variable types: 43 continuous, 1911 integer (1911 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 40203 rows and 16 columns
Presolve time: 0.91s
Presolved: 74442 rows, 1938 columns, 225376 nonzeros
Variable types: 0 continuous, 1938 integer (1895 binary)
Root relaxation presolved: 1938 rows, 76380 columns, 227314 nonzeros


Root relaxation: objective 4.100000e+01, 2206 iterations, 0.58 seconds (0.63 work units)
Total elapsed time = 5.03s (DegenMoves)

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

     0     0   41.00000    0  392          -   41.00000      -     -    9s
H    0     0                      12.0000000   41.00000   242%     -   11s
H    0     0                      13.0000000   41.00000   215%     -   11s
H    0     0                      14.0000000   41.00000   193%     -   11s
H    0     0                      15.0000000   41.00000   173%     -   11s
     0     0   41.00000    0  586   15.00000   41.00000   173%     -   18s
     0     0   41.00000    0  578   15.00000   41.00000   173%     -   19s
H    0     0                      16.0000000   41.00000   156%     -   50s
H    0     0                      17.0000000   41.00000   141%     -   50s
H    0     0                      18.0000000   41.00000   128%     -   50s
     0     0   41.00000    0  392   18.00000   41.00000   128%     -   50s

Cutting planes:
  Cover: 1
  Clique: 12
  MIR: 22
  Zero half: 1
  RLT: 14
  BQP: 2

Explored 1 nodes (36141 simplex iterations) in 50.18 seconds (48.95 work units)
Thread count was 8 (of 8 available processors)

Solution count 7: 18 17 16 ... 12

Time limit reached
Best objective 1.800000000000e+01, best bound 4.100000000000e+01, gap 127.7778%

Wrote result file './lp_solutions/grafo5233.37.sol'

