
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:53:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo801.13.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/grafo801.13.lp
Reading time = 0.00 seconds
: 1153 rows, 144 columns, 3457 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 1153 rows, 144 columns and 3457 nonzeros
Model fingerprint: 0x013c90bb
Variable types: 8 continuous, 136 integer (136 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 1.0000000
Presolve removed 303 rows and 7 columns
Presolve time: 0.01s
Presolved: 850 rows, 137 columns, 2602 nonzeros
Variable types: 0 continuous, 137 integer (129 binary)
Found heuristic solution: objective 2.0000000

Root relaxation: objective 6.000000e+00, 65 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    6.00000    0   46    2.00000    6.00000   200%     -    0s
H    0     0                       3.0000000    6.00000   100%     -    0s
     0     0    6.00000    0   38    3.00000    6.00000   100%     -    0s
     0     0    6.00000    0   40    3.00000    6.00000   100%     -    0s
H    0     0                       4.0000000    6.00000  50.0%     -    0s
     0     0    6.00000    0   48    4.00000    6.00000  50.0%     -    0s
     0     0    6.00000    0   48    4.00000    6.00000  50.0%     -    0s
     0     0    5.50000    0   34    4.00000    5.50000  37.5%     -    0s
     0     0    5.00000    0   28    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   26    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   22    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   34    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   33    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   28    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   30    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   29    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   29    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   29    4.00000    5.00000  25.0%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 12
  MIR: 22
  StrongCG: 2
  GUB cover: 1
  Inf proof: 10
  Zero half: 6
  Mod-K: 1
  RLT: 7

Explored 214 nodes (4691 simplex iterations) in 0.50 seconds (0.17 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 4 3 2 1 

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/grafo801.13.sol'

