
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:31:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11479.37.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/grafo11479.37.lp
Reading time = 0.11 seconds
: 67368 rows, 1703 columns, 203390 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 67368 rows, 1703 columns and 203390 nonzeros
Model fingerprint: 0xb1a511be
Variable types: 38 continuous, 1665 integer (1665 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 4.0000000
Presolve removed 19387 rows and 27 columns
Presolve time: 0.49s
Presolved: 47981 rows, 1676 columns, 145620 nonzeros
Variable types: 0 continuous, 1676 integer (1638 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 1676 rows, 49657 columns, 147296 nonzeros


Root relaxation: objective 3.400000e+01, 1432 iterations, 0.27 seconds (0.28 work units)

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

     0     0   34.00000    0  336   11.00000   34.00000   209%     -    2s
H    0     0                      15.0000000   34.00000   127%     -    3s
     0     0   34.00000    0  488   15.00000   34.00000   127%     -    7s
     0     0   34.00000    0  513   15.00000   34.00000   127%     -    8s
H    0     0                      16.0000000   34.00000   112%     -   10s
     0     0   34.00000    0  333   16.00000   34.00000   112%     -   24s
     0     0   34.00000    0  313   16.00000   34.00000   112%     -   24s
     0     0   33.76923    0  355   16.00000   33.76923   111%     -   46s
     0     0   33.76923    0  355   16.00000   33.76923   111%     -   47s
     0     0   33.72045    0  506   16.00000   33.72045   111%     -   50s

Cutting planes:
  Cover: 32
  Clique: 15
  MIR: 94
  StrongCG: 1
  GUB cover: 1
  Zero half: 45
  RLT: 57

Explored 1 nodes (51641 simplex iterations) in 50.07 seconds (46.99 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 16 15 11 4 

Time limit reached
Best objective 1.600000000000e+01, best bound 3.300000000000e+01, gap 106.2500%

Wrote result file './lp_solutions/grafo11479.37.sol'

