
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 11:13:48 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1079.19.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/grafo1079.19.lp
Reading time = 0.01 seconds
: 4257 rows, 355 columns, 12896 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 4257 rows, 355 columns and 12896 nonzeros
Model fingerprint: 0xbfccbcb5
Variable types: 15 continuous, 340 integer (340 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 982 rows and 10 columns
Presolve time: 0.03s
Presolved: 3275 rows, 345 columns, 10069 nonzeros
Variable types: 0 continuous, 345 integer (330 binary)

Root relaxation: objective 9.000000e+00, 97 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    9.00000    0   23          -    9.00000      -     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   56    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   21    6.00000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    8.00000  14.3%     -    0s
     0     0    8.00000    0   35    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   29    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   27    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   34    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   36    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   27    7.00000    8.00000  14.3%     -    0s
     0     2    8.00000    0   22    7.00000    8.00000  14.3%     -    0s

Cutting planes:
  Gomory: 1
  Cover: 23
  Clique: 7
  MIR: 20
  StrongCG: 2
  GUB cover: 1
  Inf proof: 54
  Zero half: 3
  RLT: 11
  BQP: 2

Explored 1097 nodes (36498 simplex iterations) in 1.34 seconds (1.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 6 

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/grafo1079.19.sol'

