
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 16:13:36 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2907.18.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/grafo2907.18.lp
Reading time = 0.01 seconds
: 4264 rows, 359 columns, 12930 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 4264 rows, 359 columns and 12930 nonzeros
Model fingerprint: 0xbc6c162d
Variable types: 16 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]
Found heuristic solution: objective 2.0000000
Presolve removed 1081 rows and 17 columns
Presolve time: 0.03s
Presolved: 3183 rows, 342 columns, 9845 nonzeros
Variable types: 0 continuous, 342 integer (326 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 1.000000e+01, 170 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   10.00000    0   55    5.00000   10.00000   100%     -    0s
H    0     0                       6.0000000   10.00000  66.7%     -    0s
     0     0   10.00000    0   78    6.00000   10.00000  66.7%     -    0s
     0     0    9.00000    0   56    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   55    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   93    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   90    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   87    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   86    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   83    6.00000    9.00000  50.0%     -    0s
     0     0    9.00000    0   83    6.00000    9.00000  50.0%     -    0s
     0     2    9.00000    0   83    6.00000    9.00000  50.0%     -    0s
H  157   107                       7.0000000    9.00000  28.6%  41.0    1s
* 1129   156              22       8.0000000    9.00000  12.5%  57.4    2s

Cutting planes:
  Gomory: 1
  Cover: 18
  MIR: 45
  StrongCG: 2
  GUB cover: 2
  Inf proof: 68
  Zero half: 14
  RLT: 24
  Relax-and-lift: 1

Explored 1560 nodes (84798 simplex iterations) in 2.84 seconds (3.15 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 7 6 ... 2

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/grafo2907.18.sol'

