
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:53:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5442.38.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/grafo5442.38.lp
Reading time = 0.16 seconds
: 98683 rows, 1809 columns, 297471 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 98683 rows, 1809 columns and 297471 nonzeros
Model fingerprint: 0xa8c03cac
Variable types: 40 continuous, 1769 integer (1769 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 33605 rows and 18 columns
Presolve time: 0.65s
Presolved: 65078 rows, 1791 columns, 196885 nonzeros
Variable types: 0 continuous, 1791 integer (1751 binary)
Root relaxation presolved: 1791 rows, 66869 columns, 198676 nonzeros


Root relaxation: objective 3.600000e+01, 1722 iterations, 0.52 seconds (0.44 work units)
Total elapsed time = 5.77s (DegenMoves)

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

     0     0   36.00000    0  343          -   36.00000      -     -    5s
H    0     0                      10.0000000   36.00000   260%     -    5s
H    0     0                      11.0000000   36.00000   227%     -    6s
H    0     0                      12.0000000   36.00000   200%     -    7s
     0     0   36.00000    0  521   12.00000   36.00000   200%     -   11s
     0     0   36.00000    0  522   12.00000   36.00000   200%     -   12s
H    0     0                      13.0000000   36.00000   177%     -   14s
H    0     0                      14.0000000   36.00000   157%     -   29s
H    0     0                      15.0000000   36.00000   140%     -   29s
     0     0   36.00000    0  497   15.00000   36.00000   140%     -   29s
     0     0   36.00000    0  438   15.00000   36.00000   140%     -   31s
     0     0   36.00000    0  513   15.00000   36.00000   140%     -   50s

Cutting planes:
  Gomory: 4
  Cover: 21
  Clique: 22
  MIR: 93
  StrongCG: 1
  Zero half: 52
  RLT: 52
  BQP: 6
  PSD: 2

Explored 1 nodes (42471 simplex iterations) in 50.08 seconds (53.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 15 14 13 ... 10

Time limit reached
Best objective 1.500000000000e+01, best bound 3.600000000000e+01, gap 140.0000%

Wrote result file './lp_solutions/grafo5442.38.sol'

