
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:42:49 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6138.45.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/grafo6138.45.lp
Reading time = 0.14 seconds
: 91303 rows, 2488 columns, 275941 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 91303 rows, 2488 columns and 275941 nonzeros
Model fingerprint: 0x7b49bec6
Variable types: 49 continuous, 2439 integer (2439 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 -0.0000000
Presolve removed 15001 rows and 0 columns
Presolve time: 0.51s
Presolved: 76302 rows, 2488 columns, 231268 nonzeros
Variable types: 0 continuous, 2488 integer (2439 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2461 rows, 78763 columns, 233756 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23657    4.5965938e+01   0.000000e+00   4.454847e+04      5s
   45536    4.5950025e+01   0.000000e+00   1.600081e+04     10s
   66791    4.5945042e+01   0.000000e+00   2.011468e+02     15s
   78590    4.6000000e+01   0.000000e+00   0.000000e+00     18s
   78590    4.6000000e+01   0.000000e+00   0.000000e+00     18s
   78590    4.6000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.600000e+01, 78590 iterations, 17.28 seconds (15.32 work units)
Total elapsed time = 34.77s (DegenMoves)
Total elapsed time = 36.02s (DegenMoves)
Total elapsed time = 41.88s (DegenMoves)

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

     0     0   46.00000    0  859    9.00000   46.00000   411%     -   44s
H    0     0                      10.0000000   46.00000   360%     -   44s
     0     0          -    0        10.00000   46.00000   360%     -   50s

Cutting planes:
  Gomory: 24
  Cover: 29
  Clique: 14
  MIR: 187
  StrongCG: 1
  Zero half: 29
  RLT: 62
  BQP: 2

Explored 1 nodes (104054 simplex iterations) in 50.08 seconds (51.85 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 4.600000000000e+01, gap 360.0000%

Wrote result file './lp_solutions/grafo6138.45.sol'

