
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 04:31:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo2340.13.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/grafo2340.13.lp
Reading time = 0.00 seconds
: 1780 rows, 159 columns, 5337 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 1780 rows, 159 columns and 5337 nonzeros
Model fingerprint: 0x1e5ab48a
Variable types: 9 continuous, 150 integer (150 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 -0.0000000
Presolve removed 697 rows and 9 columns
Presolve time: 0.01s
Presolved: 1083 rows, 150 columns, 3321 nonzeros
Variable types: 0 continuous, 150 integer (141 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 7.000000e+00, 147 iterations, 0.01 seconds (0.00 work units)

    Nodes    |    Current Node    |     Objective Bounds      |     Work
 Expl Unexpl |  Obj  Depth IntInf | Incumbent    BestBd   Gap | It/Node Time

     0     0    7.00000    0   40    1.00000    7.00000   600%     -    0s
H    0     0                       2.0000000    7.00000   250%     -    0s
H    0     0                       3.0000000    7.00000   133%     -    0s
     0     0    7.00000    0   59    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   43    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   40    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   39    3.00000    7.00000   133%     -    0s
H    0     0                       4.0000000    7.00000  75.0%     -    0s
     0     0    7.00000    0   40    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   40    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   43    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   42    4.00000    7.00000  75.0%     -    0s
     0     0    7.00000    0   42    4.00000    7.00000  75.0%     -    0s
     0     2    7.00000    0   41    4.00000    7.00000  75.0%     -    0s

Cutting planes:
  Cover: 14
  MIR: 35
  StrongCG: 2
  Inf proof: 1
  Zero half: 2
  RLT: 14
  Relax-and-lift: 1

Explored 304 nodes (6621 simplex iterations) in 0.54 seconds (0.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 4 3 2 ... -0

Optimal solution found (tolerance 1.00e-04)
Best objective 4.000000000000e+00, best bound 4.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo2340.13.sol'

