
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:24:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1413.45.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/grafo1413.45.lp
Reading time = 0.15 seconds
: 96537 rows, 2477 columns, 291634 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 96537 rows, 2477 columns and 291634 nonzeros
Model fingerprint: 0x7a47f315
Variable types: 48 continuous, 2429 integer (2429 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 19041 rows and 20 columns
Presolve time: 0.63s
Presolved: 77496 rows, 2457 columns, 234897 nonzeros
Variable types: 0 continuous, 2457 integer (2409 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2454 rows, 79950 columns, 237354 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23762    4.7687058e+01   0.000000e+00   1.091911e+04      5s
   33689    4.8000000e+01   0.000000e+00   0.000000e+00      7s
   33689    4.8000000e+01   0.000000e+00   0.000000e+00      7s
   33689    4.8000000e+01   0.000000e+00   0.000000e+00      7s

Root relaxation: objective 4.800000e+01, 33689 iterations, 6.38 seconds (6.10 work units)
Total elapsed time = 13.33s (DegenMoves)
Total elapsed time = 16.13s (DegenMoves)

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

     0     0   48.00000    0  493    9.00000   48.00000   433%     -   16s
H    0     0                      14.0000000   48.00000   243%     -   16s
     0     0   48.00000    0  630   14.00000   48.00000   243%     -   24s
     0     0   48.00000    0  632   14.00000   48.00000   243%     -   25s
     0     0   48.00000    0  369   14.00000   48.00000   243%     -   42s
     0     0   48.00000    0  400   14.00000   48.00000   243%     -   43s
     0     0   48.00000    0  563   14.00000   48.00000   243%     -   50s

Cutting planes:
  Cover: 35
  Clique: 11
  MIR: 123
  StrongCG: 1
  GUB cover: 1
  Zero half: 81
  RLT: 75
  BQP: 2

Explored 1 nodes (73785 simplex iterations) in 50.04 seconds (53.74 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 14 9 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.800000000000e+01, gap 242.8571%

Wrote result file './lp_solutions/grafo1413.45.sol'

