
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:54:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3239.42.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/grafo3239.42.lp
Reading time = 0.13 seconds
: 81967 rows, 1981 columns, 247397 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 81967 rows, 1981 columns and 247397 nonzeros
Model fingerprint: 0x150dbbcd
Variable types: 42 continuous, 1939 integer (1939 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 19774 rows and 25 columns
Presolve time: 0.58s
Presolved: 62193 rows, 1956 columns, 188355 nonzeros
Variable types: 0 continuous, 1956 integer (1914 binary)
Root relaxation presolved: 1956 rows, 64149 columns, 190311 nonzeros


Root relaxation: objective 3.000000e+01, 1669 iterations, 0.43 seconds (0.38 work units)
Total elapsed time = 5.15s (DegenMoves)

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

     0     0   30.00000    0  431          -   30.00000      -     -    5s
H    0     0                      11.0000000   30.00000   173%     -    5s
H    0     0                      13.0000000   30.00000   131%     -    7s
     0     0   30.00000    0  500   13.00000   30.00000   131%     -   10s
     0     0   30.00000    0  499   13.00000   30.00000   131%     -   12s
H    0     0                      14.0000000   30.00000   114%     -   22s
     0     0   30.00000    0  319   14.00000   30.00000   114%     -   23s
     0     0   30.00000    0  267   14.00000   30.00000   114%     -   23s
     0     0   30.00000    0  265   14.00000   30.00000   114%     -   31s
     0     0   30.00000    0  208   14.00000   30.00000   114%     -   31s
     0     0   30.00000    0  368   14.00000   30.00000   114%     -   45s
     0     0   30.00000    0  295   14.00000   30.00000   114%     -   45s
     0     0   30.00000    0  389   14.00000   30.00000   114%     -   50s

Cutting planes:
  Cover: 27
  Clique: 32
  MIR: 74
  StrongCG: 1
  GUB cover: 1
  Zero half: 20
  RLT: 49
  BQP: 5

Explored 1 nodes (50870 simplex iterations) in 50.08 seconds (47.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 13 11 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.000000000000e+01, gap 114.2857%

Wrote result file './lp_solutions/grafo3239.42.sol'

