
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:27:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo665.13.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/grafo665.13.lp
Reading time = 0.00 seconds
: 678 rows, 106 columns, 2026 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 678 rows, 106 columns and 2026 nonzeros
Model fingerprint: 0xe1907df2
Variable types: 4 continuous, 102 integer (102 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 44 rows and 2 columns
Presolve time: 0.01s
Presolved: 634 rows, 104 columns, 1906 nonzeros
Variable types: 0 continuous, 104 integer (100 binary)

Root relaxation: objective 4.000000e+00, 24 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    4.00000    0    5    2.00000    4.00000   100%     -    0s
     0     0    4.00000    0    9    2.00000    4.00000   100%     -    0s
     0     0    4.00000    0    4    2.00000    4.00000   100%     -    0s
     0     0    4.00000    0    7    2.00000    4.00000   100%     -    0s
     0     0    4.00000    0    7    2.00000    4.00000   100%     -    0s
     0     0    4.00000    0    7    2.00000    4.00000   100%     -    0s
     0     0    4.00000    0    9    2.00000    4.00000   100%     -    0s
     0     0    3.91667    0    8    2.00000    3.91667  95.8%     -    0s
     0     0    3.75000    0    8    2.00000    3.75000  87.5%     -    0s
     0     2    3.75000    0    8    2.00000    3.75000  87.5%     -    0s

Cutting planes:
  Cover: 1
  MIR: 4
  Inf proof: 1
  Zero half: 1

Explored 55 nodes (527 simplex iterations) in 0.13 seconds (0.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Optimal solution found (tolerance 1.00e-04)
Best objective 2.000000000000e+00, best bound 2.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo665.13.sol'

