
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:09:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5250.42.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/grafo5250.42.lp
Reading time = 0.11 seconds
: 68058 rows, 1986 columns, 205630 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 68058 rows, 1986 columns and 205630 nonzeros
Model fingerprint: 0x9a365d36
Variable types: 41 continuous, 1945 integer (1945 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 13971 rows and 20 columns
Presolve time: 0.42s
Presolved: 54087 rows, 1966 columns, 164104 nonzeros
Variable types: 0 continuous, 1966 integer (1925 binary)
Root relaxation presolved: 1960 rows, 56047 columns, 166070 nonzeros


Root relaxation: objective 3.400000e+01, 2589 iterations, 0.77 seconds (0.84 work units)
Total elapsed time = 7.45s (DegenMoves)
Total elapsed time = 10.43s (DegenMoves)

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

     0     0   34.00000    0  489          -   34.00000      -     -   10s
H    0     0                       5.0000000   34.00000   580%     -   12s
     0     0   34.00000    0  922    5.00000   34.00000   580%     -   23s
H    0     0                      13.0000000   34.00000   162%     -   23s
     0     0   34.00000    0  908   13.00000   34.00000   162%     -   24s
     0     0   34.00000    0  610   13.00000   34.00000   162%     -   50s

Cutting planes:
  Gomory: 1
  Clique: 12
  MIR: 16
  Zero half: 4
  RLT: 27
  BQP: 1

Explored 1 nodes (49403 simplex iterations) in 50.10 seconds (52.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 5 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.400000000000e+01, gap 161.5385%

Wrote result file './lp_solutions/grafo5250.42.sol'

