
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 07:51:41 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo780.15.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/grafo780.15.lp
Reading time = 0.01 seconds
: 3026 rows, 285 columns, 9174 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 3026 rows, 285 columns and 9174 nonzeros
Model fingerprint: 0xfb0ff23b
Variable types: 15 continuous, 270 integer (270 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 793 rows and 13 columns
Presolve time: 0.02s
Presolved: 2233 rows, 272 columns, 6903 nonzeros
Variable types: 0 continuous, 272 integer (257 binary)
Found heuristic solution: objective 2.0000000
Found heuristic solution: objective 4.0000000

Root relaxation: objective 1.200000e+01, 232 iterations, 0.02 seconds (0.01 work units)

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

     0     0   12.00000    0   88    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   85    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   85    4.00000   12.00000   200%     -    0s
     0     0   12.00000    0   85    4.00000   12.00000   200%     -    0s
H    0     0                       5.0000000   12.00000   140%     -    0s
H    0     0                       7.0000000   12.00000  71.4%     -    0s
     0     0   12.00000    0   79    7.00000   12.00000  71.4%     -    0s
     0     0   11.50000    0   64    7.00000   11.50000  64.3%     -    0s
     0     0   11.50000    0   79    7.00000   11.50000  64.3%     -    0s
     0     0   11.00000    0   79    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   71    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   80    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   79    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   76    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   60    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   67    7.00000   11.00000  57.1%     -    0s
     0     0   11.00000    0   62    7.00000   11.00000  57.1%     -    0s
     0     2   11.00000    0   62    7.00000   11.00000  57.1%     -    1s
  3145   680    8.00000   15   65    7.00000   10.00000  42.9%  40.8    5s

Cutting planes:
  Gomory: 1
  Cover: 72
  MIR: 98
  StrongCG: 9
  GUB cover: 2
  Inf proof: 100
  Zero half: 8
  RLT: 38

Explored 5904 nodes (327833 simplex iterations) in 9.67 seconds (6.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 5 4 2 

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/grafo780.15.sol'

