
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:16:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1485.23.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/grafo1485.23.lp
Reading time = 0.01 seconds
: 5833 rows, 449 columns, 17623 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 5833 rows, 449 columns and 17623 nonzeros
Model fingerprint: 0x13686ca6
Variable types: 16 continuous, 433 integer (433 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 757 rows and 13 columns
Presolve time: 0.05s
Presolved: 5076 rows, 436 columns, 15460 nonzeros
Variable types: 0 continuous, 436 integer (420 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.200000e+01, 324 iterations, 0.03 seconds (0.02 work units)

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

     0     0   12.00000    0   91    3.00000   12.00000   300%     -    0s
H    0     0                       4.0000000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0  142    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  139    5.00000   12.00000   140%     -    0s
     0     0   11.66667    0   92    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0   89    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0   88    5.00000   11.66667   133%     -    1s
     0     0   11.66667    0   75    5.00000   11.66667   133%     -    1s
     0     0   11.33333    0   93    5.00000   11.33333   127%     -    1s
     0     0   11.33333    0   92    5.00000   11.33333   127%     -    1s
     0     0   11.33333    0   85    5.00000   11.33333   127%     -    1s
H    0     0                       6.0000000   11.33333  88.9%     -    1s
     0     0   11.16667    0   90    6.00000   11.16667  86.1%     -    1s
     0     0   11.00000    0   84    6.00000   11.00000  83.3%     -    1s
     0     0   11.00000    0   84    6.00000   11.00000  83.3%     -    1s
H    0     0                       7.0000000   11.00000  57.1%     -    1s
     0     2   11.00000    0   84    7.00000   11.00000  57.1%     -    1s
H   31    40                       8.0000000   11.00000  37.5%  42.4    2s
  1438   298    9.00000   19   44    8.00000   10.66667  33.3%  24.3    5s

Cutting planes:
  Cover: 22
  MIR: 83
  StrongCG: 2
  Inf proof: 29
  Zero half: 10
  RLT: 26

Explored 2382 nodes (62803 simplex iterations) in 6.26 seconds (3.10 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 7 6 ... 3

Optimal solution found (tolerance 1.00e-04)
Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1485.23.sol'

