
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:21:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6214.39.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/grafo6214.39.lp
Reading time = 0.18 seconds
: 112867 rows, 2272 columns, 340661 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 112867 rows, 2272 columns and 340661 nonzeros
Model fingerprint: 0x2f3dbb04
Variable types: 48 continuous, 2224 integer (2224 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 33467 rows and 19 columns
Presolve time: 0.78s
Presolved: 79400 rows, 2253 columns, 240684 nonzeros
Variable types: 0 continuous, 2253 integer (2205 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 2250 rows, 81650 columns, 242937 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24941    4.9940906e+01   0.000000e+00   9.597027e+02      5s
   33336    5.0000000e+01   0.000000e+00   0.000000e+00      7s
   33336    5.0000000e+01   0.000000e+00   0.000000e+00      7s
   33336    5.0000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 5.000000e+01, 33336 iterations, 5.78 seconds (4.64 work units)
Total elapsed time = 15.23s (DegenMoves)

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

     0     0   50.00000    0  404    7.00000   50.00000   614%     -   18s
H    0     0                      10.0000000   50.00000   400%     -   18s
H    0     0                      11.0000000   50.00000   355%     -   18s
     0     0   50.00000    0  693   11.00000   50.00000   355%     -   26s
     0     0   50.00000    0  640   11.00000   50.00000   355%     -   28s
     0     0   50.00000    0  532   11.00000   50.00000   355%     -   45s
     0     0   50.00000    0  501   11.00000   50.00000   355%     -   46s
     0     0          -    0        11.00000   50.00000   355%     -   50s

Cutting planes:
  Cover: 27
  Clique: 21
  MIR: 129
  StrongCG: 2
  GUB cover: 4
  Zero half: 125
  RLT: 59

Explored 1 nodes (67962 simplex iterations) in 50.02 seconds (51.48 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.000000000000e+01, gap 354.5455%

Wrote result file './lp_solutions/grafo6214.39.sol'

