
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:47:03 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo382.15.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/grafo382.15.lp
Reading time = 0.01 seconds
: 4138 rows, 270 columns, 12484 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 4138 rows, 270 columns and 12484 nonzeros
Model fingerprint: 0x6809d796
Variable types: 14 continuous, 256 integer (256 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 -0.0000000
Presolve removed 1598 rows and 12 columns
Presolve time: 0.04s
Presolved: 2540 rows, 258 columns, 7792 nonzeros
Variable types: 0 continuous, 258 integer (244 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 1.200000e+01, 253 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   55    1.00000   12.00000  1100%     -    0s
H    0     0                       2.0000000   12.00000   500%     -    0s
H    0     0                       4.0000000   12.00000   200%     -    0s
     0     0   12.00000    0  104    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0  104    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0  107    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0  108    4.00000   12.00000   200%     -    0s
     0     0   11.66667    0   81    4.00000   11.66667   192%     -    0s
H    0     0                       5.0000000   11.66667   133%     -    0s
     0     0   11.66667    0   83    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0  100    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0   92    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0   59    5.00000   11.66667   133%     -    0s
     0     0   11.66667    0   90    5.00000   11.66667   133%     -    0s
     0     0   11.50000    0   84    5.00000   11.50000   130%     -    1s
     0     0   11.50000    0   84    5.00000   11.50000   130%     -    1s
     0     2   11.50000    0   74    5.00000   11.50000   130%     -    1s
H  265   222                       6.0000000   11.50000  91.7%  66.7    2s
  1366   758    7.00000   38   48    6.00000   11.00000  83.3%  65.3    5s
* 1943   943              32       7.0000000   10.50000  50.0%  67.2    8s
  2702   782    8.00000   24   70    7.00000    8.00000  14.3%  59.7   10s

Cutting planes:
  Cover: 1
  MIR: 1
  Inf proof: 1
  RLT: 2

Explored 4194 nodes (236582 simplex iterations) in 12.60 seconds (6.82 work units)
Thread count was 8 (of 8 available processors)

Solution count 10: 7 6 6 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo382.15.sol'

