
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:14:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6089.47.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/grafo6089.47.lp
Reading time = 0.21 seconds
: 86071 rows, 2380 columns, 259998 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 86071 rows, 2380 columns and 259998 nonzeros
Model fingerprint: 0xd82d79fd
Variable types: 45 continuous, 2335 integer (2335 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 22596 rows and 102 columns
Presolve time: 0.63s
Presolved: 63475 rows, 2278 columns, 192449 nonzeros
Variable types: 0 continuous, 2278 integer (2233 binary)
Root relaxation presolved: 2278 rows, 65753 columns, 194727 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20768    3.3964636e+01   0.000000e+00   7.482408e+03      5s
   35810    3.4000000e+01   0.000000e+00   0.000000e+00      9s
   35810    3.4000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 3.400000e+01, 35810 iterations, 7.93 seconds (5.12 work units)
Total elapsed time = 19.32s (DegenMoves)
Total elapsed time = 20.17s (DegenMoves)

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

     0     0   34.00000    0  526          -   34.00000      -     -   22s
H    0     0                       6.0000000   34.00000   467%     -   25s
     0     0   34.00000    0  827    6.00000   34.00000   467%     -   38s
H    0     0                      11.0000000   34.00000   209%     -   39s
     0     0   34.00000    0  805   11.00000   34.00000   209%     -   41s
     0     0          -    0        11.00000   34.00000   209%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 33
  Cover: 8
  Clique: 5
  MIR: 111
  Zero half: 15
  RLT: 39

Explored 1 nodes (60147 simplex iterations) in 50.08 seconds (31.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 6 

Time limit reached
Best objective 1.100000000000e+01, best bound 3.400000000000e+01, gap 209.0909%

Wrote result file './lp_solutions/grafo6089.47.sol'

