
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:59:18 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6726.47.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/grafo6726.47.lp
Reading time = 0.18 seconds
: 102455 rows, 2565 columns, 309350 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 102455 rows, 2565 columns and 309350 nonzeros
Model fingerprint: 0x48076822
Variable types: 47 continuous, 2518 integer (2518 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 24566 rows and 42 columns
Presolve time: 0.76s
Presolved: 77889 rows, 2523 columns, 236087 nonzeros
Variable types: 0 continuous, 2523 integer (2476 binary)
Root relaxation presolved: 2520 rows, 80409 columns, 238610 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19504    4.6727359e+01   0.000000e+00   1.489192e+04      5s
   35024    4.7000000e+01   0.000000e+00   0.000000e+00      9s
   35024    4.7000000e+01   0.000000e+00   0.000000e+00      9s
   35024    4.7000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.700000e+01, 35024 iterations, 8.15 seconds (5.87 work units)
Total elapsed time = 19.14s (DegenMoves)
Total elapsed time = 20.21s (DegenMoves)

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

     0     0   47.00000    0  353          -   47.00000      -     -   20s
H    0     0                       7.0000000   47.00000   571%     -   21s
     0     0   47.00000    0  632    7.00000   47.00000   571%     -   29s
H    0     0                      11.0000000   47.00000   327%     -   29s
     0     0   47.00000    0  665   11.00000   47.00000   327%     -   31s
     0     0   47.00000    0  536   11.00000   47.00000   327%     -   43s
H    0     0                      13.0000000   47.00000   262%     -   43s
     0     0   47.00000    0  491   13.00000   47.00000   262%     -   44s
     0     0          -    0        13.00000   47.00000   262%     -   50s

Cutting planes:
  Cover: 37
  Clique: 14
  MIR: 129
  StrongCG: 1
  GUB cover: 6
  Zero half: 59
  RLT: 66
  BQP: 1

Explored 1 nodes (63820 simplex iterations) in 50.04 seconds (37.20 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 7 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.700000000000e+01, gap 261.5385%

Wrote result file './lp_solutions/grafo6726.47.sol'

