
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:40:55 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo339.18.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/grafo339.18.lp
Reading time = 0.01 seconds
: 3191 rows, 217 columns, 9577 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 3191 rows, 217 columns and 9577 nonzeros
Model fingerprint: 0x30e87af4
Variable types: 7 continuous, 210 integer (210 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 886 rows and 0 columns
Presolve time: 0.02s
Presolved: 2305 rows, 217 columns, 6931 nonzeros
Variable types: 0 continuous, 217 integer (210 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 8.000000e+00, 115 iterations, 0.01 seconds (0.01 work units)

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

     0     0    8.00000    0   43    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   42    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   38    4.00000    8.00000   100%     -    0s
     0     0    8.00000    0   45    4.00000    8.00000   100%     -    0s
     0     0    7.00000    0   39    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   43    4.00000    7.00000  75.0%     -    0s
     0     0    6.66667    0   39    4.00000    6.66667  66.7%     -    0s
     0     0    6.00000    0   42    4.00000    6.00000  50.0%     -    0s
     0     0    6.00000    0   36    4.00000    6.00000  50.0%     -    0s
     0     0    6.00000    0   42    4.00000    6.00000  50.0%     -    0s
     0     0    5.00000    0   42    4.00000    5.00000  25.0%     -    0s
     0     0    5.00000    0   28    4.00000    5.00000  25.0%     -    0s
     0     2    5.00000    0   28    4.00000    5.00000  25.0%     -    0s

Cutting planes:
  Gomory: 3
  Cover: 3
  Clique: 6
  MIR: 24
  StrongCG: 1
  Inf proof: 30
  Zero half: 5
  RLT: 16
  BQP: 1
  PSD: 1

Explored 680 nodes (10508 simplex iterations) in 1.14 seconds (0.47 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 4 2 

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/grafo339.18.sol'

