
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:24:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2987.17.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/grafo2987.17.lp
Reading time = 0.01 seconds
: 3435 rows, 361 columns, 10473 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 3435 rows, 361 columns and 10473 nonzeros
Model fingerprint: 0xda286c1f
Variable types: 18 continuous, 343 integer (343 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 287 rows and 16 columns
Presolve time: 0.03s
Presolved: 3148 rows, 345 columns, 9732 nonzeros
Variable types: 0 continuous, 345 integer (327 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.000000e+01, 208 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   10.00000    0   39    4.00000   10.00000   150%     -    0s
H    0     0                       5.0000000   10.00000   100%     -    0s
     0     0   10.00000    0  101    5.00000   10.00000   100%     -    0s
     0     0   10.00000    0   14    5.00000   10.00000   100%     -    0s
H    0     0                       8.0000000   10.00000  25.0%     -    0s
     0     0   10.00000    0   12    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   12    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   13    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   15    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   16    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   14    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   20    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   23    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   23    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   10    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0    8    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0    5    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   21    8.00000   10.00000  25.0%     -    0s
     0     0   10.00000    0   15    8.00000   10.00000  25.0%     -    0s
     0     2   10.00000    0   15    8.00000   10.00000  25.0%     -    1s

Cutting planes:
  Cover: 3
  Clique: 1
  MIR: 9
  GUB cover: 1
  Inf proof: 11
  Zero half: 2
  Mod-K: 2
  RLT: 21
  PSD: 1

Explored 259 nodes (18065 simplex iterations) in 1.95 seconds (0.98 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 8 5 4 

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/grafo2987.17.sol'

