
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:06:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1169.18.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/grafo1169.18.lp
Reading time = 0.01 seconds
: 4174 rows, 378 columns, 12690 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 4174 rows, 378 columns and 12690 nonzeros
Model fingerprint: 0x5a373ddc
Variable types: 18 continuous, 360 integer (360 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]
Found heuristic solution: objective 2.0000000
Presolve removed 594 rows and 15 columns
Presolve time: 0.03s
Presolved: 3580 rows, 363 columns, 11028 nonzeros
Variable types: 0 continuous, 363 integer (345 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 1.000000e+01, 363 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   10.00000    0   88    3.00000   10.00000   233%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
H    0     0                       7.0000000   10.00000  42.9%     -    0s
     0     0   10.00000    0   46    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   42    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   58    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   40    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   55    7.00000   10.00000  42.9%     -    0s
     0     0   10.00000    0   55    7.00000   10.00000  42.9%     -    0s
H    0     0                       8.0000000   10.00000  25.0%     -    0s
     0     0   10.00000    0   28    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   38    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   29    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   28    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   42    8.00000   10.00000  25.0%     -    1s
     0     0   10.00000    0   33    8.00000   10.00000  25.0%     -    1s
     0     0    9.50000    0   41    8.00000    9.50000  18.8%     -    1s
     0     0    9.50000    0   26    8.00000    9.50000  18.8%     -    1s
     0     2    9.50000    0   26    8.00000    9.50000  18.8%     -    1s

Cutting planes:
  Gomory: 1
  Cover: 5
  MIR: 25
  StrongCG: 3
  Inf proof: 4
  Zero half: 2
  RLT: 17

Explored 80 nodes (6222 simplex iterations) in 1.47 seconds (0.73 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 5 ... 2

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/grafo1169.18.sol'

