
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 02:17:58 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo737.14.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/grafo737.14.lp
Reading time = 0.01 seconds
: 1368 rows, 187 columns, 4117 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 1368 rows, 187 columns and 4117 nonzeros
Model fingerprint: 0x2e62c53b
Variable types: 11 continuous, 176 integer (176 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 234 rows and 15 columns
Presolve time: 0.02s
Presolved: 1134 rows, 172 columns, 3520 nonzeros
Variable types: 0 continuous, 172 integer (161 binary)
Found heuristic solution: objective 1.0000000

Root relaxation: objective 5.000000e+00, 40 iterations, 0.00 seconds (0.00 work units)

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

     0     0    5.00000    0   10    1.00000    5.00000   400%     -    0s
H    0     0                       2.0000000    5.00000   150%     -    0s
     0     0    5.00000    0   26    2.00000    5.00000   150%     -    0s
H    0     0                       3.0000000    5.00000  66.7%     -    0s
     0     0    5.00000    0   41    3.00000    5.00000  66.7%     -    0s
H    0     0                       4.0000000    5.00000  25.0%     -    0s
     0     0    5.00000    0   38    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   13    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0    5    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   12    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   14    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   24    4.00000    5.00000  25.0%     -    0s
  1151   427    5.00000   23   52    4.00000    5.00000  25.0%  63.8    5s
  3077   173 infeasible   25         4.00000    5.00000  25.0%  64.0   10s

Cutting planes:
  Lift-and-project: 1
  MIR: 3
  Flow cover: 4
  GUB cover: 2
  Zero half: 1
  RLT: 5
  Relax-and-lift: 2

Explored 4050 nodes (243575 simplex iterations) in 10.46 seconds (3.44 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/grafo737.14.sol'

