
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 18:02:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1639.14.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/grafo1639.14.lp
Reading time = 0.01 seconds
: 4484 rows, 268 columns, 13575 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 4484 rows, 268 columns and 13575 nonzeros
Model fingerprint: 0xd8cd7e4d
Variable types: 12 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]
Presolve removed 2843 rows and 23 columns
Presolve time: 0.02s
Presolved: 1641 rows, 245 columns, 5095 nonzeros
Variable types: 0 continuous, 245 integer (233 binary)

Root relaxation: objective 1.100000e+01, 207 iterations, 0.01 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   45          -   11.00000      -     -    0s
H    0     0                       5.0000000   11.00000   120%     -    0s
     0     0   11.00000    0   81    5.00000   11.00000   120%     -    0s
H    0     0                       6.0000000   11.00000  83.3%     -    0s
     0     0   11.00000    0   78    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   69    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   69    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   60    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   52    6.00000   11.00000  83.3%     -    0s
     0     0   11.00000    0   56    6.00000   11.00000  83.3%     -    0s
H    0     0                       7.0000000   11.00000  57.1%     -    0s
     0     0   11.00000    0   56    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   78    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   65    7.00000   11.00000  57.1%     -    0s
     0     2   11.00000    0   65    7.00000   11.00000  57.1%     -    0s

Cutting planes:
  Cover: 54
  Clique: 8
  MIR: 38
  StrongCG: 3
  Inf proof: 101
  Zero half: 5
  RLT: 23
  PSD: 4

Explored 2565 nodes (104546 simplex iterations) in 2.15 seconds (1.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 7 6 5 

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/grafo1639.14.sol'

