
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:42:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3164.38.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/grafo3164.38.lp
Reading time = 0.21 seconds
: 128814 rows, 1955 columns, 388028 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 128814 rows, 1955 columns and 388028 nonzeros
Model fingerprint: 0x62663e8b
Variable types: 42 continuous, 1913 integer (1913 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 51392 rows and 48 columns
Presolve time: 0.93s
Presolved: 77422 rows, 1907 columns, 234233 nonzeros
Variable types: 0 continuous, 1907 integer (1865 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 1907 rows, 79329 columns, 236140 nonzeros


Root relaxation: objective 3.800000e+01, 2099 iterations, 0.77 seconds (0.93 work units)
Total elapsed time = 7.36s (DegenMoves)

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

     0     0   38.00000    0  574    6.00000   38.00000   533%     -    7s
H    0     0                      12.0000000   38.00000   217%     -    7s
H    0     0                      14.0000000   38.00000   171%     -    8s
     0     0   38.00000    0  876   14.00000   38.00000   171%     -   21s
     0     0   38.00000    0  896   14.00000   38.00000   171%     -   22s
     0     0   38.00000    0  657   14.00000   38.00000   171%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 2
  Clique: 28
  MIR: 65
  Zero half: 75
  RLT: 59
  BQP: 3

Explored 1 nodes (36579 simplex iterations) in 50.03 seconds (60.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 14 12 6 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.800000000000e+01, gap 171.4286%

Wrote result file './lp_solutions/grafo3164.38.sol'

