
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 07:20:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6333.42.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/grafo6333.42.lp
Reading time = 0.20 seconds
: 123333 rows, 2358 columns, 372033 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 123333 rows, 2358 columns and 372033 nonzeros
Model fingerprint: 0xea590de9
Variable types: 48 continuous, 2310 integer (2310 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 5.0000000
Presolve removed 36669 rows and 9 columns
Presolve time: 0.75s
Presolved: 86664 rows, 2349 columns, 262366 nonzeros
Variable types: 0 continuous, 2349 integer (2301 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 2339 rows, 89003 columns, 264715 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21707    4.5943119e+01   0.000000e+00   3.237986e+04      5s
   43003    4.5925734e+01   0.000000e+00   2.359145e+04     10s
   63488    4.6000000e+01   0.000000e+00   0.000000e+00     15s
   63488    4.6000000e+01   0.000000e+00   0.000000e+00     15s
   63488    4.6000000e+01   0.000000e+00   0.000000e+00     15s

Root relaxation: objective 4.600000e+01, 63488 iterations, 14.20 seconds (13.87 work units)
Total elapsed time = 27.54s (DegenMoves)

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

     0     0   46.00000    0  394   14.00000   46.00000   229%     -   29s
H    0     0                      15.0000000   46.00000   207%     -   29s
     0     0   46.00000    0  742   15.00000   46.00000   207%     -   38s
     0     0   46.00000    0  703   15.00000   46.00000   207%     -   40s
     0     0   46.00000    0  704   15.00000   46.00000   207%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 27
  Cover: 9
  Clique: 28
  MIR: 125
  Zero half: 16
  RLT: 52
  BQP: 6

Explored 1 nodes (86730 simplex iterations) in 50.03 seconds (52.43 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 15 14 5 

Time limit reached
Best objective 1.500000000000e+01, best bound 4.600000000000e+01, gap 206.6667%

Wrote result file './lp_solutions/grafo6333.42.sol'

