
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:34:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6366.41.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/grafo6366.41.lp
Reading time = 0.20 seconds
: 103838 rows, 2187 columns, 313303 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 103838 rows, 2187 columns and 313303 nonzeros
Model fingerprint: 0x9a97d846
Variable types: 45 continuous, 2142 integer (2142 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 38423 rows and 74 columns
Presolve time: 0.90s
Presolved: 65415 rows, 2113 columns, 198460 nonzeros
Variable types: 0 continuous, 2113 integer (2068 binary)
Root relaxation presolved: 2113 rows, 67528 columns, 200573 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19251    4.0835270e+01   0.000000e+00   1.643397e+04      5s
   29450    4.1000000e+01   0.000000e+00   0.000000e+00      7s
   29450    4.1000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.100000e+01, 29450 iterations, 6.39 seconds (3.90 work units)
Total elapsed time = 18.00s (DegenMoves)

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

     0     0   41.00000    0  546          -   41.00000      -     -   19s
H    0     0                       7.0000000   41.00000   486%     -   19s
H    0     0                       9.0000000   41.00000   356%     -   19s
     0     0   41.00000    0  758    9.00000   41.00000   356%     -   36s
H    0     0                      11.0000000   41.00000   273%     -   37s
     0     0   41.00000    0  749   11.00000   41.00000   273%     -   39s
     0     0          -    0        11.00000   41.00000   273%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 32
  Cover: 3
  Clique: 17
  MIR: 104
  StrongCG: 1
  GUB cover: 1
  Zero half: 30
  RLT: 57
  BQP: 4

Explored 1 nodes (50472 simplex iterations) in 50.12 seconds (30.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 9 7 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.100000000000e+01, gap 272.7273%

Wrote result file './lp_solutions/grafo6366.41.sol'

