
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 13:21:31 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1803.17.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/grafo1803.17.lp
Reading time = 0.01 seconds
: 1973 rows, 254 columns, 5982 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 1973 rows, 254 columns and 5982 nonzeros
Model fingerprint: 0x85cea51e
Variable types: 11 continuous, 243 integer (243 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]
Presolve removed 163 rows and 18 columns
Presolve time: 0.04s
Presolved: 1810 rows, 236 columns, 5535 nonzeros
Variable types: 0 continuous, 236 integer (225 binary)
Found heuristic solution: objective 5.0000000

Root relaxation: objective 7.000000e+00, 98 iterations, 0.01 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   12    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   14    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   13    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   13    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   13    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0    8    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   11    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   13    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0    8    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   12    5.00000    7.00000  40.0%     -    0s
     0     0    7.00000    0   12    5.00000    7.00000  40.0%     -    0s
     0     2    7.00000    0   12    5.00000    7.00000  40.0%     -    1s

Cutting planes:
  Gomory: 4
  Cover: 3
  Inf proof: 15
  Zero half: 1
  Mod-K: 3

Explored 481 nodes (10555 simplex iterations) in 1.74 seconds (0.30 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

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/grafo1803.17.sol'

