
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 04:01:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3792.39.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/grafo3792.39.lp
Reading time = 0.19 seconds
: 122110 rows, 2162 columns, 368190 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 122110 rows, 2162 columns and 368190 nonzeros
Model fingerprint: 0xfc45dc15
Variable types: 46 continuous, 2116 integer (2116 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 40719 rows and 9 columns
Presolve time: 0.83s
Presolved: 81391 rows, 2153 columns, 246353 nonzeros
Variable types: 0 continuous, 2153 integer (2107 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2140 rows, 83531 columns, 248506 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24799    4.6811857e+01   0.000000e+00   5.311602e+04      5s
   38588    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   38588    4.7000000e+01   0.000000e+00   0.000000e+00      8s
   38588    4.7000000e+01   0.000000e+00   0.000000e+00      8s

Root relaxation: objective 4.700000e+01, 38588 iterations, 6.62 seconds (5.19 work units)
Total elapsed time = 16.48s (DegenMoves)
Total elapsed time = 33.90s (DegenMoves)
Total elapsed time = 35.89s (DegenMoves)

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

     0     0   47.00000    0  445    5.00000   47.00000   840%     -   36s
H    0     0                      11.0000000   47.00000   327%     -   36s
H    0     0                      13.0000000   47.00000   262%     -   36s
     0     0   47.00000    0  801   13.00000   47.00000   262%     -   48s
H    0     0                      14.0000000   47.00000   236%     -   49s
     0     0   47.00000    0  783   14.00000   47.00000   236%     -   49s

Cutting planes:
  Gomory: 1
  Cover: 28
  Clique: 31
  MIR: 131
  StrongCG: 2
  Zero half: 3
  RLT: 40
  BQP: 5

Explored 1 nodes (74928 simplex iterations) in 50.02 seconds (66.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 11 5 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.700000000000e+01, gap 235.7143%

Wrote result file './lp_solutions/grafo3792.39.sol'

