
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:46:05 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1905.13.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/grafo1905.13.lp
Reading time = 0.00 seconds
: 1639 rows, 180 columns, 4948 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 1639 rows, 180 columns and 4948 nonzeros
Model fingerprint: 0x94e53410
Variable types: 11 continuous, 169 integer (169 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 473 rows and 9 columns
Presolve time: 0.02s
Presolved: 1166 rows, 171 columns, 3598 nonzeros
Variable types: 0 continuous, 171 integer (160 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 7.000000e+00, 88 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    7.00000    0   32    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   60    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   53    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   51    3.00000    7.00000   133%     -    0s
     0     0    7.00000    0   47    3.00000    7.00000   133%     -    0s
     0     0    6.50000    0   46    3.00000    6.50000   117%     -    0s
     0     0    6.00000    0   53    3.00000    6.00000   100%     -    0s
     0     0    6.00000    0   50    3.00000    6.00000   100%     -    0s
H    0     0                       4.0000000    5.50000  37.5%     -    0s
     0     0    5.50000    0   31    4.00000    5.50000  37.5%     -    0s
     0     0    5.50000    0   30    4.00000    5.50000  37.5%     -    0s
H    0     0                       5.0000000    5.50000  10.0%     -    0s

Cutting planes:
  Cover: 9
  MIR: 16
  Inf proof: 4
  Zero half: 9
  RLT: 9

Explored 1 nodes (1919 simplex iterations) in 0.35 seconds (0.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 5 4 3 1 

Optimal solution found (tolerance 1.00e-04)
Best objective 5.000000000000e+00, best bound 5.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1905.13.sol'

