
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:05:19 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11209.36.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/grafo11209.36.lp
Reading time = 0.13 seconds
: 70121 rows, 1703 columns, 211644 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 70121 rows, 1703 columns and 211644 nonzeros
Model fingerprint: 0x6da1dc04
Variable types: 40 continuous, 1663 integer (1663 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 20690 rows and 30 columns
Presolve time: 0.66s
Presolved: 49431 rows, 1673 columns, 149950 nonzeros
Variable types: 0 continuous, 1673 integer (1633 binary)
Found heuristic solution: objective 4.0000000
Root relaxation presolved: 1673 rows, 51104 columns, 151623 nonzeros


Root relaxation: objective 3.700000e+01, 3018 iterations, 1.52 seconds (1.41 work units)
Total elapsed time = 6.95s (DegenMoves)

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

     0     0   37.00000    0  413    4.00000   37.00000   825%     -    8s
H    0     0                       6.0000000   37.00000   517%     -    8s
     0     0   37.00000    0  575    6.00000   37.00000   517%     -   16s
     0     0   37.00000    0  559    6.00000   37.00000   517%     -   16s
H    0     0                       8.0000000   37.00000   362%     -   41s
H    0     0                       9.0000000   37.00000   311%     -   41s
     0     0   37.00000    0  528    9.00000   37.00000   311%     -   41s
     0     0   37.00000    0  510    9.00000   37.00000   311%     -   42s
     0     0   37.00000    0  606    9.00000   37.00000   311%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 30
  Clique: 29
  MIR: 143
  GUB cover: 1
  Zero half: 56
  RLT: 63
  BQP: 1

Explored 1 nodes (40747 simplex iterations) in 50.05 seconds (39.25 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 9 8 6 ... -0

Time limit reached
Best objective 9.000000000000e+00, best bound 3.700000000000e+01, gap 311.1111%

Wrote result file './lp_solutions/grafo11209.36.sol'

