
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:44:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3148.37.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/grafo3148.37.lp
Reading time = 0.34 seconds
: 209087 rows, 1668 columns, 628476 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 209087 rows, 1668 columns and 628476 nonzeros
Model fingerprint: 0xde72bf0f
Variable types: 36 continuous, 1632 integer (1632 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 95826 rows and 8 columns
Presolve time: 1.50s
Presolved: 113261 rows, 1660 columns, 341130 nonzeros
Variable types: 0 continuous, 1660 integer (1624 binary)
Root relaxation presolved: 1657 rows, 114918 columns, 342790 nonzeros


Root relaxation: objective 4.100000e+01, 2912 iterations, 1.79 seconds (2.47 work units)
Total elapsed time = 15.98s (DegenMoves)
Total elapsed time = 20.05s (DegenMoves)

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

     0     0   41.00000    0  479          -   41.00000      -     -   20s
H    0     0                       6.0000000   41.00000   583%     -   20s
H    0     0                       7.0000000   41.00000   486%     -   20s
H    0     0                       8.0000000   41.00000   412%     -   21s
H    0     0                      10.0000000   41.00000   310%     -   21s
     0     0   41.00000    0  623   10.00000   41.00000   310%     -   31s
H    0     0                      14.0000000   41.00000   193%     -   32s
     0     0   41.00000    0  613   14.00000   41.00000   193%     -   32s
     0     0   41.00000    0  624   14.00000   41.00000   193%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 32
  Cover: 10
  Clique: 42
  MIR: 88
  GUB cover: 1
  Zero half: 56
  RLT: 82
  BQP: 6

Explored 1 nodes (23350 simplex iterations) in 50.04 seconds (55.96 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 14 10 8 ... 6

Time limit reached
Best objective 1.400000000000e+01, best bound 4.100000000000e+01, gap 192.8571%

Wrote result file './lp_solutions/grafo3148.37.sol'

