
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:28:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11400.38.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/grafo11400.38.lp
Reading time = 0.13 seconds
: 79569 rows, 1948 columns, 240316 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 79569 rows, 1948 columns and 240316 nonzeros
Model fingerprint: 0x2f9b6e46
Variable types: 41 continuous, 1907 integer (1907 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 33802 rows and 107 columns
Presolve time: 0.44s
Presolved: 45767 rows, 1841 columns, 139189 nonzeros
Variable types: 0 continuous, 1841 integer (1800 binary)
Root relaxation presolved: 26671 rows, 20937 columns, 100997 nonzeros


Root relaxation: objective 4.100000e+01, 3611 iterations, 1.88 seconds (1.73 work units)
Total elapsed time = 5.52s (DegenMoves)

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

     0     0   41.00000    0  518          -   41.00000      -     -    7s
H    0     0                      13.0000000   41.00000   215%     -    9s
H    0     0                      14.0000000   41.00000   193%     -    9s
     0     0   41.00000    0  685   14.00000   41.00000   193%     -   16s
H    0     0                      15.0000000   41.00000   173%     -   16s
     0     0   41.00000    0  680   15.00000   41.00000   173%     -   16s
H    0     0                      16.0000000   41.00000   156%     -   37s
H    0     0                      17.0000000   41.00000   141%     -   37s
     0     0   41.00000    0  409   17.00000   41.00000   141%     -   37s
     0     0   41.00000    0  458   17.00000   41.00000   141%     -   38s
     0     0   41.00000    0  609   17.00000   41.00000   141%     -   50s

Cutting planes:
  Cover: 31
  Clique: 12
  MIR: 140
  StrongCG: 2
  GUB cover: 1
  Zero half: 48
  RLT: 69
  BQP: 1
  PSD: 2

Explored 1 nodes (54188 simplex iterations) in 50.06 seconds (44.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 17 16 15 ... 13

Time limit reached
Best objective 1.700000000000e+01, best bound 4.100000000000e+01, gap 141.1765%

Wrote result file './lp_solutions/grafo11400.38.sol'

