
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:09:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6336.43.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/grafo6336.43.lp
Reading time = 0.17 seconds
: 91865 rows, 2660 columns, 278049 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 91865 rows, 2660 columns and 278049 nonzeros
Model fingerprint: 0xb00fa425
Variable types: 52 continuous, 2608 integer (2608 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 17727 rows and 70 columns
Presolve time: 0.66s
Presolved: 74138 rows, 2590 columns, 225442 nonzeros
Variable types: 0 continuous, 2590 integer (2538 binary)
Root relaxation presolved: 2578 rows, 76716 columns, 228032 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   17818    4.3932644e+01   0.000000e+00   5.017026e+04      5s
   35668    4.3916042e+01   0.000000e+00   1.166300e+04     10s
   45395    4.4000000e+01   0.000000e+00   0.000000e+00     13s
   45395    4.4000000e+01   0.000000e+00   0.000000e+00     13s
   45395    4.4000000e+01   0.000000e+00   0.000000e+00     13s

Root relaxation: objective 4.400000e+01, 45395 iterations, 12.21 seconds (7.58 work units)
Total elapsed time = 27.07s (DegenMoves)
Total elapsed time = 31.54s (DegenMoves)

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

     0     0   44.00000    0  498          -   44.00000      -     -   33s
H    0     0                      13.0000000   44.00000   238%     -   36s
     0     0          -    0        13.00000   44.00000   238%     -   50s

Cutting planes:
  Gomory: 40
  Cover: 34
  Clique: 3
  MIR: 139
  StrongCG: 1
  GUB cover: 7
  Zero half: 75
  RLT: 46

Explored 1 nodes (71114 simplex iterations) in 50.12 seconds (35.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 13 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.400000000000e+01, gap 238.4615%

Wrote result file './lp_solutions/grafo6336.43.sol'

