
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:17:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6227.36.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/grafo6227.36.lp
Reading time = 0.20 seconds
: 119581 rows, 1841 columns, 360274 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 119581 rows, 1841 columns and 360274 nonzeros
Model fingerprint: 0xf8f2104b
Variable types: 42 continuous, 1799 integer (1799 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 44552 rows and 27 columns
Presolve time: 0.89s
Presolved: 75029 rows, 1814 columns, 227073 nonzeros
Variable types: 0 continuous, 1814 integer (1772 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1811 rows, 76840 columns, 228887 nonzeros


Root relaxation: objective 3.500000e+01, 1818 iterations, 0.49 seconds (0.50 work units)
Total elapsed time = 6.18s (DegenMoves)

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

     0     0   35.00000    0  423    4.00000   35.00000   775%     -    6s
H    0     0                       5.0000000   35.00000   600%     -    6s
H    0     0                       6.0000000   35.00000   483%     -    6s
H    0     0                       7.0000000   35.00000   400%     -    9s
     0     0   35.00000    0  772    7.00000   35.00000   400%     -   23s
H    0     0                       8.0000000   35.00000   337%     -   25s
     0     0   35.00000    0  782    8.00000   35.00000   337%     -   25s
     0     0   35.00000    0  543    8.00000   35.00000   337%     -   50s

Cutting planes:
  Gomory: 1
  Lift-and-project: 15
  Cover: 9
  Clique: 10
  MIR: 90
  StrongCG: 1
  GUB cover: 1
  Zero half: 57
  RLT: 52
  BQP: 3

Explored 1 nodes (32499 simplex iterations) in 50.09 seconds (46.71 work units)
Thread count was 8 (of 8 available processors)

Solution count 6: 8 7 6 ... -0

Time limit reached
Best objective 8.000000000000e+00, best bound 3.500000000000e+01, gap 337.5000%

Wrote result file './lp_solutions/grafo6227.36.sol'

