
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:56:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2509.37.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/grafo2509.37.lp
Reading time = 0.17 seconds
: 104092 rows, 1955 columns, 313970 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 104092 rows, 1955 columns and 313970 nonzeros
Model fingerprint: 0x5170f505
Variable types: 44 continuous, 1911 integer (1911 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 36115 rows and 15 columns
Presolve time: 0.65s
Presolved: 67977 rows, 1940 columns, 205865 nonzeros
Variable types: 0 continuous, 1940 integer (1896 binary)
Root relaxation presolved: 1940 rows, 69917 columns, 207805 nonzeros


Root relaxation: objective 4.600000e+01, 2214 iterations, 0.53 seconds (0.54 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   46.00000    0  452          -   46.00000      -     -    6s
H    0     0                       6.0000000   46.00000   667%     -    7s
     0     0   46.00000    0  619    6.00000   46.00000   667%     -   13s
H    0     0                       8.0000000   46.00000   475%     -   14s
     0     0   46.00000    0  589    8.00000   46.00000   475%     -   14s
H    0     0                      10.0000000   46.00000   360%     -   17s
H    0     0                      12.0000000   46.00000   283%     -   40s
H    0     0                      13.0000000   46.00000   254%     -   40s
     0     0   46.00000    0  715   13.00000   46.00000   254%     -   40s
     0     0   46.00000    0  703   13.00000   46.00000   254%     -   41s
     0     0   46.00000    0  674   13.00000   46.00000   254%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 3
  Cover: 6
  Clique: 17
  MIR: 85
  StrongCG: 2
  Zero half: 98
  RLT: 82
  BQP: 4

Explored 1 nodes (34890 simplex iterations) in 50.10 seconds (42.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 13 12 10 ... 6

Time limit reached
Best objective 1.300000000000e+01, best bound 4.600000000000e+01, gap 253.8462%

Wrote result file './lp_solutions/grafo2509.37.sol'

