
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:50:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11214.40.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/grafo11214.40.lp
Reading time = 0.16 seconds
: 101328 rows, 2115 columns, 305713 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 101328 rows, 2115 columns and 305713 nonzeros
Model fingerprint: 0x6a40a181
Variable types: 44 continuous, 2071 integer (2071 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 4.0000000
Presolve removed 31668 rows and 7 columns
Presolve time: 0.63s
Presolved: 69660 rows, 2108 columns, 211019 nonzeros
Variable types: 0 continuous, 2108 integer (2064 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2105 rows, 71765 columns, 213127 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26270    5.2776402e+01   0.000000e+00   1.062642e+04      5s
   42907    5.3000000e+01   0.000000e+00   0.000000e+00      8s
   42907    5.3000000e+01   0.000000e+00   0.000000e+00      8s
   42907    5.3000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 5.300000e+01, 42907 iterations, 7.32 seconds (6.05 work units)
Total elapsed time = 14.88s (DegenMoves)
Total elapsed time = 15.25s (DegenMoves)

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

     0     0   53.00000    0  585    9.00000   53.00000   489%     -   15s
H    0     0                      10.0000000   53.00000   430%     -   15s
     0     0   53.00000    0  764   10.00000   53.00000   430%     -   29s
     0     0   53.00000    0  738   10.00000   53.00000   430%     -   31s
     0     0   53.00000    0  730   10.00000   53.00000   430%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 61
  Cover: 4
  Clique: 13
  MIR: 107
  StrongCG: 1
  Zero half: 29
  RLT: 58
  BQP: 3

Explored 1 nodes (69310 simplex iterations) in 50.10 seconds (41.86 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 9 4 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo11214.40.sol'

