
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 02:55:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1313.31.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/grafo1313.31.lp
Reading time = 0.07 seconds
: 44308 rows, 1363 columns, 133998 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 44308 rows, 1363 columns and 133998 nonzeros
Model fingerprint: 0x58717683
Variable types: 35 continuous, 1328 integer (1328 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 16543 rows and 62 columns
Presolve time: 0.29s
Presolved: 27765 rows, 1301 columns, 84705 nonzeros
Variable types: 0 continuous, 1301 integer (1266 binary)
Root relaxation presolved: 16725 rows, 12341 columns, 62625 nonzeros


Root relaxation: objective 3.200000e+01, 2213 iterations, 0.70 seconds (0.67 work units)

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

     0     0   32.00000    0  352          -   32.00000      -     -    3s
H    0     0                      12.0000000   32.00000   167%     -    4s
H    0     0                      13.0000000   32.00000   146%     -    6s
     0     0   32.00000    0  553   13.00000   32.00000   146%     -    6s
     0     0   32.00000    0  542   13.00000   32.00000   146%     -    7s
     0     0   32.00000    0  464   13.00000   32.00000   146%     -   14s
     0     0   32.00000    0  387   13.00000   32.00000   146%     -   15s
     0     0   32.00000    0  395   13.00000   32.00000   146%     -   21s
     0     0   32.00000    0  495   13.00000   32.00000   146%     -   22s
     0     0   32.00000    0  500   13.00000   32.00000   146%     -   33s
     0     0   32.00000    0  518   13.00000   32.00000   146%     -   34s
     0     0   32.00000    0  408   13.00000   32.00000   146%     -   39s
     0     0   32.00000    0  468   13.00000   32.00000   146%     -   40s
     0     0   32.00000    0  345   13.00000   32.00000   146%     -   44s
     0     0   32.00000    0  343   13.00000   32.00000   146%     -   44s
     0     2   32.00000    0  324   13.00000   32.00000   146%     -   47s
    23    28   32.00000    6  293   13.00000   32.00000   146%   394   50s

Cutting planes:
  Gomory: 2
  Cover: 2
  Clique: 10
  MIR: 66
  StrongCG: 1
  Zero half: 5
  RLT: 51
  BQP: 1

Explored 27 nodes (87499 simplex iterations) in 50.03 seconds (48.87 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 12 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.200000000000e+01, gap 146.1538%

Wrote result file './lp_solutions/grafo1313.31.sol'

