
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 21:07:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3823.37.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/grafo3823.37.lp
Reading time = 0.10 seconds
: 60342 rows, 1689 columns, 182286 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 60342 rows, 1689 columns and 182286 nonzeros
Model fingerprint: 0xa1605106
Variable types: 39 continuous, 1650 integer (1650 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 2.0000000
Presolve removed 15210 rows and 13 columns
Presolve time: 0.40s
Presolved: 45132 rows, 1676 columns, 136899 nonzeros
Variable types: 0 continuous, 1676 integer (1637 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 28223 rows, 18585 columns, 103081 nonzeros


Root relaxation: objective 4.100000e+01, 2715 iterations, 1.27 seconds (1.28 work units)
Total elapsed time = 11.01s (DegenMoves)

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

     0     0   41.00000    0  409    5.00000   41.00000   720%     -   13s
H    0     0                       8.0000000   41.00000   412%     -   13s
     0     0   41.00000    0  649    8.00000   41.00000   412%     -   20s
H    0     0                      10.0000000   41.00000   310%     -   20s
     0     0   41.00000    0  630   10.00000   41.00000   310%     -   21s
     0     0   41.00000    0  543   10.00000   41.00000   310%     -   34s
H    0     0                      12.0000000   41.00000   242%     -   34s
     0     0   41.00000    0  568   12.00000   41.00000   242%     -   35s
     0     0   41.00000    0  452   12.00000   41.00000   242%     -   44s
     0     0   41.00000    0  490   12.00000   41.00000   242%     -   44s
     0     0   41.00000    0  699   12.00000   41.00000   242%     -   50s

Cutting planes:
  Gomory: 1
  Cover: 37
  Clique: 15
  MIR: 162
  StrongCG: 2
  GUB cover: 3
  Zero half: 32
  RLT: 91
  BQP: 1

Explored 1 nodes (55389 simplex iterations) in 50.05 seconds (46.11 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 12 10 8 ... 2

Time limit reached
Best objective 1.200000000000e+01, best bound 4.100000000000e+01, gap 241.6667%

Wrote result file './lp_solutions/grafo3823.37.sol'

