
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 04:42:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo9992.40.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/grafo9992.40.lp
Reading time = 0.12 seconds
: 77684 rows, 2063 columns, 234697 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 77684 rows, 2063 columns and 234697 nonzeros
Model fingerprint: 0x0fc4afa9
Variable types: 45 continuous, 2018 integer (2018 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 2.0000000
Presolve removed 17277 rows and 37 columns
Presolve time: 0.53s
Presolved: 60407 rows, 2026 columns, 183255 nonzeros
Variable types: 0 continuous, 2026 integer (1981 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2026 rows, 62433 columns, 185281 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26935    4.2807218e+01   0.000000e+00   3.657099e+03      5s
   33895    4.3000000e+01   0.000000e+00   0.000000e+00      6s
   33895    4.3000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.300000e+01, 33895 iterations, 5.70 seconds (4.59 work units)
Total elapsed time = 14.77s (DegenMoves)
Total elapsed time = 15.15s (DegenMoves)

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

     0     0   43.00000    0  524    9.00000   43.00000   378%     -   15s
H    0     0                      10.0000000   43.00000   330%     -   18s
     0     0   43.00000    0  760   10.00000   43.00000   330%     -   24s
     0     0   43.00000    0  754   10.00000   43.00000   330%     -   25s
     0     0   43.00000    0  607   10.00000   43.00000   330%     -   50s

Cutting planes:
  Gomory: 5
  Lift-and-project: 22
  Cover: 9
  Clique: 12
  MIR: 138
  Zero half: 27
  RLT: 58

Explored 1 nodes (70614 simplex iterations) in 50.06 seconds (45.69 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 2 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.300000000000e+01, gap 330.0000%

Wrote result file './lp_solutions/grafo9992.40.sol'

