
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:22:30 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo10567.38.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/grafo10567.38.lp
Reading time = 0.11 seconds
: 69395 rows, 2041 columns, 209953 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 69395 rows, 2041 columns and 209953 nonzeros
Model fingerprint: 0x49780405
Variable types: 44 continuous, 1997 integer (1997 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 17598 rows and 102 columns
Presolve time: 0.47s
Presolved: 51797 rows, 1939 columns, 157429 nonzeros
Variable types: 0 continuous, 1939 integer (1895 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 1939 rows, 53736 columns, 159368 nonzeros


Root relaxation: objective 4.200000e+01, 1474 iterations, 0.25 seconds (0.23 work units)

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

     0     0   42.00000    0  297    9.00000   42.00000   367%     -    2s
H    0     0                      12.0000000   42.00000   250%     -    2s
     0     0   42.00000    0  739   12.00000   42.00000   250%     -    9s
     0     0   42.00000    0  669   12.00000   42.00000   250%     -   11s
H    0     0                      13.0000000   41.00000   215%     -   27s
H    0     0                      14.0000000   41.00000   193%     -   27s
     0     0   41.00000    0  390   14.00000   41.00000   193%     -   27s
     0     0   41.00000    0  338   14.00000   41.00000   193%     -   27s
     0     0   41.00000    0  444   14.00000   41.00000   193%     -   36s
     0     0   41.00000    0  437   14.00000   41.00000   193%     -   37s
     0     0   41.00000    0  736   14.00000   41.00000   193%     -   50s

Cutting planes:
  Gomory: 2
  Lift-and-project: 1
  Cover: 27
  Clique: 7
  MIR: 118
  StrongCG: 5
  Zero half: 66
  RLT: 69
  BQP: 1

Explored 1 nodes (47262 simplex iterations) in 50.08 seconds (39.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 13 12 9 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.100000000000e+01, gap 192.8571%

Wrote result file './lp_solutions/grafo10567.38.sol'

