
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 04:36:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6897.35.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/grafo6897.35.lp
Reading time = 0.22 seconds
: 131953 rows, 1867 columns, 397477 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 131953 rows, 1867 columns and 397477 nonzeros
Model fingerprint: 0xfdb7e05d
Variable types: 41 continuous, 1826 integer (1826 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 55509 rows and 4 columns
Presolve time: 0.79s
Presolved: 76444 rows, 1863 columns, 231433 nonzeros
Variable types: 0 continuous, 1863 integer (1822 binary)
Root relaxation presolved: 1849 rows, 78293 columns, 233296 nonzeros


Root relaxation: objective 4.600000e+01, 2442 iterations, 0.85 seconds (0.84 work units)
Total elapsed time = 8.00s (DegenMoves)

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

     0     0   46.00000    0  405          -   46.00000      -     -    9s
H    0     0                       9.0000000   46.00000   411%     -    9s
H    0     0                      11.0000000   46.00000   318%     -   11s
     0     0   46.00000    0  672   11.00000   46.00000   318%     -   22s
     0     0   46.00000    0  603   11.00000   46.00000   318%     -   25s
     0     0   46.00000    0  679   11.00000   46.00000   318%     -   50s

Cutting planes:
  Gomory: 9
  Lift-and-project: 39
  Cover: 22
  Clique: 22
  MIR: 86
  StrongCG: 1
  Zero half: 27
  RLT: 77
  BQP: 1

Explored 1 nodes (33052 simplex iterations) in 50.08 seconds (48.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.600000000000e+01, gap 318.1818%

Wrote result file './lp_solutions/grafo6897.35.sol'

