
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 03:25:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1653.18.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/grafo1653.18.lp
Reading time = 0.02 seconds
: 3416 rows, 321 columns, 10341 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 3416 rows, 321 columns and 10341 nonzeros
Model fingerprint: 0x608b68f3
Variable types: 15 continuous, 306 integer (306 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 -0.0000000
Presolve removed 580 rows and 15 columns
Presolve time: 0.03s
Presolved: 2836 rows, 306 columns, 8718 nonzeros
Variable types: 0 continuous, 306 integer (291 binary)
Found heuristic solution: objective 4.0000000

Root relaxation: objective 9.000000e+00, 153 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    9.00000    0   44    4.00000    9.00000   125%     -    0s
H    0     0                       5.0000000    9.00000  80.0%     -    0s
     0     0    9.00000    0   82    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   77    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   89    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   84    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   78    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   75    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   86    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   65    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   39    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   37    5.00000    9.00000  80.0%     -    0s
     0     0    9.00000    0   27    5.00000    9.00000  80.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    9.00000    0   26    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   38    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   39    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   37    7.00000    9.00000  28.6%     -    0s
     0     0    9.00000    0   24    7.00000    9.00000  28.6%     -    0s
     0     2    9.00000    0   13    7.00000    9.00000  28.6%     -    0s

Cutting planes:
  Cover: 9
  MIR: 25
  StrongCG: 1
  Inf proof: 1
  Zero half: 2
  RLT: 8

Explored 97 nodes (4374 simplex iterations) in 1.15 seconds (0.52 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 5 4 -0 

Optimal solution found (tolerance 1.00e-04)
Best objective 7.000000000000e+00, best bound 7.000000000000e+00, gap 0.0000%

Wrote result file './lp_solutions/grafo1653.18.sol'

