
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 01:45:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo162.24.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/grafo162.24.lp
Reading time = 0.11 seconds
: 67443 rows, 993 columns, 203094 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 67443 rows, 993 columns and 203094 nonzeros
Model fingerprint: 0x0c6a45b4
Variable types: 30 continuous, 963 integer (963 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 34073 rows and 17 columns
Presolve time: 0.46s
Presolved: 33370 rows, 976 columns, 101194 nonzeros
Variable types: 0 continuous, 976 integer (946 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 976 rows, 34346 columns, 102170 nonzeros


Root relaxation: objective 3.300000e+01, 1521 iterations, 0.37 seconds (0.51 work units)
Total elapsed time = 8.30s (DegenMoves)

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

     0     0   33.00000    0  311    6.00000   33.00000   450%     -    9s
     0     0   33.00000    0  417    6.00000   33.00000   450%     -   12s
     0     0   33.00000    0  377    6.00000   33.00000   450%     -   12s
H    0     0                       7.0000000   33.00000   371%     -   13s
H    0     0                       8.0000000   33.00000   312%     -   27s
     0     0   33.00000    0  328    8.00000   33.00000   312%     -   27s
     0     0   33.00000    0  384    8.00000   33.00000   312%     -   28s
     0     0   33.00000    0  298    8.00000   33.00000   312%     -   33s
     0     0   33.00000    0  271    8.00000   33.00000   312%     -   33s
     0     0   33.00000    0  237    8.00000   33.00000   312%     -   38s
     0     0   33.00000    0  195    8.00000   33.00000   312%     -   38s
     0     0   33.00000    0  288    8.00000   33.00000   312%     -   40s
     0     0   33.00000    0  273    8.00000   33.00000   312%     -   40s
     0     0   33.00000    0  257    8.00000   33.00000   312%     -   44s
     0     0   33.00000    0  239    8.00000   33.00000   312%     -   44s
     0     0   33.00000    0  331    8.00000   33.00000   312%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 1
  Clique: 10
  MIR: 34
  Zero half: 2
  RLT: 15

Explored 1 nodes (65988 simplex iterations) in 50.05 seconds (53.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 7 6 

Time limit reached
Best objective 8.000000000000e+00, best bound 3.300000000000e+01, gap 312.5000%

Wrote result file './lp_solutions/grafo162.24.sol'

