
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:17:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3566.36.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/grafo3566.36.lp
Reading time = 0.08 seconds
: 49590 rows, 1540 columns, 149872 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 49590 rows, 1540 columns and 149872 nonzeros
Model fingerprint: 0xf6b898d3
Variable types: 37 continuous, 1503 integer (1503 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 3.0000000
Presolve removed 11254 rows and 24 columns
Presolve time: 0.35s
Presolved: 38336 rows, 1516 columns, 116377 nonzeros
Variable types: 0 continuous, 1516 integer (1479 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 23426 rows, 16426 columns, 86557 nonzeros


Root relaxation: objective 3.200000e+01, 2541 iterations, 1.00 seconds (0.94 work units)
Total elapsed time = 5.62s (DegenMoves)

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

     0     0   32.00000    0  374    4.00000   32.00000   700%     -    6s
H    0     0                       6.0000000   32.00000   433%     -    6s
H    0     0                       7.0000000   32.00000   357%     -    7s
H    0     0                       9.0000000   32.00000   256%     -    7s
     0     0   32.00000    0  597    9.00000   32.00000   256%     -   11s
H    0     0                      10.0000000   32.00000   220%     -   12s
     0     0   32.00000    0  589   10.00000   32.00000   220%     -   12s
H    0     0                      11.0000000   32.00000   191%     -   19s
     0     0   32.00000    0  337   11.00000   32.00000   191%     -   19s
     0     0   32.00000    0  320   11.00000   32.00000   191%     -   19s
     0     0   32.00000    0  312   11.00000   32.00000   191%     -   26s
     0     0   32.00000    0  360   11.00000   32.00000   191%     -   27s
H    0     0                      12.0000000   32.00000   167%     -   32s
H    0     0                      14.0000000   32.00000   129%     -   32s
     0     0   32.00000    0  355   14.00000   32.00000   129%     -   32s
     0     0   32.00000    0  334   14.00000   32.00000   129%     -   32s
     0     0   31.66667    0  405   14.00000   31.66667   126%     -   40s
     0     0   31.66667    0  419   14.00000   31.66667   126%     -   41s
     0     0   31.66667    0  398   14.00000   31.66667   126%     -   49s

Cutting planes:
  Cover: 3
  Clique: 19
  MIR: 29
  GUB cover: 1
  Zero half: 1
  RLT: 29
  BQP: 1

Explored 1 nodes (68451 simplex iterations) in 50.05 seconds (45.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 9: 14 12 11 ... 3

Time limit reached
Best objective 1.400000000000e+01, best bound 3.100000000000e+01, gap 121.4286%

Wrote result file './lp_solutions/grafo3566.36.sol'

