
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 18:26:52 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1421.32.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/grafo1421.32.lp
Reading time = 0.28 seconds
: 169673 rows, 1839 columns, 510741 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 169673 rows, 1839 columns and 510741 nonzeros
Model fingerprint: 0x6434dd62
Variable types: 43 continuous, 1796 integer (1796 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 75253 rows and 5 columns
Presolve time: 1.07s
Presolved: 94420 rows, 1834 columns, 285313 nonzeros
Variable types: 0 continuous, 1834 integer (1791 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 1825 rows, 96245 columns, 287147 nonzeros


Root relaxation: objective 5.100000e+01, 2478 iterations, 0.96 seconds (1.11 work units)
Total elapsed time = 13.33s (DegenMoves)

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

     0     0   51.00000    0  609    8.00000   51.00000   538%     -   14s
H    0     0                      10.0000000   51.00000   410%     -   15s
     0     0   51.00000    0  833   10.00000   51.00000   410%     -   31s
     0     0   51.00000    0  814   10.00000   51.00000   410%     -   32s
     0     0   51.00000    0  822   10.00000   51.00000   410%     -   50s

Cutting planes:
  Gomory: 3
  Cover: 10
  Clique: 40
  MIR: 109
  Zero half: 58
  RLT: 80
  BQP: 5

Explored 1 nodes (28074 simplex iterations) in 50.03 seconds (53.58 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 8 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.100000000000e+01, gap 410.0000%

Wrote result file './lp_solutions/grafo1421.32.sol'

