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

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2850.14.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/grafo2850.14.lp
Reading time = 0.01 seconds
: 2992 rows, 304 columns, 9130 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 2992 rows, 304 columns and 9130 nonzeros
Model fingerprint: 0x0d2e0982
Variable types: 17 continuous, 287 integer (287 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 3.0000000
Presolve removed 557 rows and 9 columns
Presolve time: 0.04s
Presolved: 2435 rows, 295 columns, 7543 nonzeros
Variable types: 0 continuous, 295 integer (278 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.200000e+01, 287 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   12.00000    0   90    4.00000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
     0     0   12.00000    0  163    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  157    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  110    5.00000   12.00000   140%     -    0s
     0     0   12.00000    0  100    5.00000   12.00000   140%     -    0s
H    0     0                       6.0000000   12.00000   100%     -    0s
     0     0   12.00000    0   99    6.00000   12.00000   100%     -    0s
     0     0   12.00000    0   94    6.00000   12.00000   100%     -    0s
H    0     0                       8.0000000   12.00000  50.0%     -    0s
     0     0   12.00000    0   54    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   50    8.00000   12.00000  50.0%     -    0s
     0     0   12.00000    0   66    8.00000   12.00000  50.0%     -    1s
     0     0   12.00000    0   59    8.00000   12.00000  50.0%     -    1s
     0     0   12.00000    0   59    8.00000   12.00000  50.0%     -    1s
     0     0   12.00000    0   59    8.00000   12.00000  50.0%     -    1s
     0     2   12.00000    0   54    8.00000   12.00000  50.0%     -    1s

Cutting planes:
  Gomory: 1
  Cover: 6
  Clique: 5
  MIR: 59
  StrongCG: 1
  Inf proof: 44
  Zero half: 11
  RLT: 41
  Relax-and-lift: 1
  BQP: 3

Explored 2412 nodes (68610 simplex iterations) in 4.20 seconds (2.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 8 6 5 ... 3

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/grafo2850.14.sol'

