
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:48:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6555.50.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/grafo6555.50.lp
Reading time = 0.21 seconds
: 118101 rows, 2767 columns, 356369 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 118101 rows, 2767 columns and 356369 nonzeros
Model fingerprint: 0x26365a33
Variable types: 49 continuous, 2718 integer (2718 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 23932 rows and 1 columns
Presolve time: 0.74s
Presolved: 94169 rows, 2766 columns, 284978 nonzeros
Variable types: 0 continuous, 2766 integer (2717 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2736 rows, 96905 columns, 287744 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19140    4.7951162e+01   0.000000e+00   2.568999e+04      5s
   36258    4.7936849e+01   0.000000e+00   1.065105e+04     10s
   53788    4.7931571e+01   0.000000e+00   7.357248e+02     15s
   60913    4.8000000e+01   0.000000e+00   0.000000e+00     17s
   60913    4.8000000e+01   0.000000e+00   0.000000e+00     17s
   60913    4.8000000e+01   0.000000e+00   0.000000e+00     17s

Root relaxation: objective 4.800000e+01, 60913 iterations, 16.47 seconds (14.54 work units)
Total elapsed time = 35.30s (DegenMoves)
Total elapsed time = 43.58s (DegenMoves)
Total elapsed time = 45.17s (DegenMoves)

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

     0     0   48.00000    0  555    9.00000   48.00000   433%     -   48s
H    0     0                      10.0000000   48.00000   380%     -   48s

Cutting planes:
  Cover: 39
  Clique: 7
  MIR: 168

Explored 1 nodes (88440 simplex iterations) in 50.03 seconds (53.79 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 4.800000000000e+01, gap 380.0000%

Wrote result file './lp_solutions/grafo6555.50.sol'

