
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Wed Nov 13 05:42:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo348.20.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/grafo348.20.lp
Reading time = 0.01 seconds
: 4006 rows, 374 columns, 12139 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 4006 rows, 374 columns and 12139 nonzeros
Model fingerprint: 0xc8196b18
Variable types: 16 continuous, 358 integer (358 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 389 rows and 15 columns
Presolve time: 0.04s
Presolved: 3617 rows, 359 columns, 11083 nonzeros
Variable types: 0 continuous, 359 integer (343 binary)
Found heuristic solution: objective 3.0000000

Root relaxation: objective 9.000000e+00, 265 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    9.00000    0   37    3.00000    9.00000   200%     -    0s
H    0     0                       4.0000000    9.00000   125%     -    0s
H    0     0                       6.0000000    9.00000  50.0%     -    0s
     0     0    9.00000    0   77    6.00000    9.00000  50.0%     -    0s
H    0     0                       7.0000000    9.00000  28.6%     -    0s
     0     0    8.50000    0   26    7.00000    8.50000  21.4%     -    0s
     0     0    8.00000    0   25    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   24    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   27    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   28    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   33    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   31    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   24    7.00000    8.00000  14.3%     -    0s
     0     0    8.00000    0   23    7.00000    8.00000  14.3%     -    0s
     0     2    8.00000    0   16    7.00000    8.00000  14.3%     -    1s

Cutting planes:
  Gomory: 3
  Cover: 5
  Clique: 2
  MIR: 10
  StrongCG: 1
  GUB cover: 1
  Inf proof: 5
  Zero half: 4
  RLT: 14
  BQP: 1

Explored 115 nodes (5912 simplex iterations) in 1.23 seconds (0.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 7 6 4 3 

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/grafo348.20.sol'

