
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:18:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo288.15.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/grafo288.15.lp
Reading time = 0.02 seconds
: 3879 rows, 250 columns, 11701 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 3879 rows, 250 columns and 11701 nonzeros
Model fingerprint: 0x79437037
Variable types: 13 continuous, 237 integer (237 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 1.0000000
Presolve removed 1502 rows and 9 columns
Presolve time: 0.04s
Presolved: 2377 rows, 241 columns, 7264 nonzeros
Variable types: 0 continuous, 241 integer (228 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.100000e+01, 201 iterations, 0.02 seconds (0.01 work units)

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

     0     0   11.00000    0   69    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   88    4.00000   11.00000   175%     -    0s
     0     0   11.00000    0   85    4.00000   11.00000   175%     -    0s
     0     0   10.50000    0   87    4.00000   10.50000   162%     -    0s
     0     0   10.33333    0   85    4.00000   10.33333   158%     -    0s
     0     0   10.00000    0   94    4.00000   10.00000   150%     -    0s
     0     0   10.00000    0   97    4.00000   10.00000   150%     -    0s
     0     0    9.66667    0   68    4.00000    9.66667   142%     -    0s
     0     0    9.66667    0   73    4.00000    9.66667   142%     -    0s
     0     0    9.66667    0   70    4.00000    9.66667   142%     -    1s
     0     0    9.66667    0   64    4.00000    9.66667   142%     -    1s
     0     0    9.50000    0   82    4.00000    9.50000   138%     -    1s
     0     0    9.50000    0   77    4.00000    9.50000   138%     -    1s
     0     2    9.50000    0   76    4.00000    9.50000   138%     -    1s
*  111   107              28       5.0000000    9.50000  90.0%  65.6    1s
  1611   833    9.00000    8   77    5.00000    9.50000  90.0%  58.6    5s
  2650   992    6.00000   23   66    5.00000    9.00000  80.0%  58.5   10s
  5145   967    6.92308   36   67    5.00000    7.00000  40.0%  64.9   15s
  8069  1031 infeasible   36         5.00000    6.00000  20.0%  71.2   20s
 11287   563 infeasible   36         5.00000    6.00000  20.0%  76.6   25s
 14008   323 infeasible   45         5.00000    6.00000  20.0%  78.3   30s

Cutting planes:
  MIR: 2
  StrongCG: 1
  Inf proof: 2
  RLT: 4

Explored 16389 nodes (1308987 simplex iterations) in 33.95 seconds (16.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 5 5 5 ... 1

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo288.15.sol'

