
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 03:55:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1742.34.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/grafo1742.34.lp
Reading time = 0.29 seconds
: 170471 rows, 1700 columns, 512886 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 170471 rows, 1700 columns and 512886 nonzeros
Model fingerprint: 0x860ca055
Variable types: 40 continuous, 1660 integer (1660 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]
Found heuristic solution: objective 7.0000000
Presolve removed 78857 rows and 21 columns
Presolve time: 1.41s
Presolved: 91614 rows, 1679 columns, 276660 nonzeros
Variable types: 0 continuous, 1679 integer (1639 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 1676 rows, 93290 columns, 278339 nonzeros


Root relaxation: objective 3.200000e+01, 1333 iterations, 0.53 seconds (0.55 work units)
Total elapsed time = 5.36s (DegenMoves)

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

     0     0   32.00000    0  281   12.00000   32.00000   167%     -    5s
H    0     0                      13.0000000   32.00000   146%     -    5s
     0     0   32.00000    0  591   13.00000   32.00000   146%     -   14s
     0     0   32.00000    0  615   13.00000   32.00000   146%     -   15s
     0     0   32.00000    0  533   13.00000   32.00000   146%     -   38s
H    0     0                      14.0000000   32.00000   129%     -   39s
     0     0   32.00000    0  546   14.00000   32.00000   129%     -   42s
     0     0   32.00000    0  558   14.00000   32.00000   129%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 15
  Clique: 23
  MIR: 107
  StrongCG: 2
  Zero half: 40
  RLT: 50
  BQP: 1

Explored 1 nodes (29103 simplex iterations) in 50.03 seconds (58.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 7 

Time limit reached
Best objective 1.400000000000e+01, best bound 3.200000000000e+01, gap 128.5714%

Wrote result file './lp_solutions/grafo1742.34.sol'

