
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:00:17 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3655.39.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/grafo3655.39.lp
Reading time = 0.18 seconds
: 109721 rows, 2307 columns, 331235 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 109721 rows, 2307 columns and 331235 nonzeros
Model fingerprint: 0xef2db85d
Variable types: 49 continuous, 2258 integer (2258 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 31234 rows and 21 columns
Presolve time: 0.80s
Presolved: 78487 rows, 2286 columns, 237964 nonzeros
Variable types: 0 continuous, 2286 integer (2237 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2283 rows, 80770 columns, 240250 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23129    5.3781211e+01   0.000000e+00   1.983672e+04      5s
   41373    5.4000000e+01   0.000000e+00   0.000000e+00      9s
   41373    5.4000000e+01   0.000000e+00   0.000000e+00      9s
   41373    5.4000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 5.400000e+01, 41373 iterations, 7.70 seconds (6.20 work units)
Total elapsed time = 18.35s (DegenMoves)

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

     0     0   54.00000    0  691    7.00000   54.00000   671%     -   42s
H    0     0                      11.0000000   54.00000   391%     -   42s
     0     0          -    0        11.00000   54.00000   391%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 14
  Clique: 30
  MIR: 79
  GUB cover: 1
  Zero half: 10
  RLT: 47
  BQP: 3

Explored 1 nodes (72222 simplex iterations) in 50.02 seconds (63.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.400000000000e+01, gap 390.9091%

Wrote result file './lp_solutions/grafo3655.39.sol'

