
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:52:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1409.49.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/grafo1409.49.lp
Reading time = 0.28 seconds
: 135265 rows, 2839 columns, 408100 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 135265 rows, 2839 columns and 408100 nonzeros
Model fingerprint: 0x03413dac
Variable types: 49 continuous, 2790 integer (2790 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 49891 rows and 126 columns
Presolve time: 1.03s
Presolved: 85374 rows, 2713 columns, 258670 nonzeros
Variable types: 0 continuous, 2713 integer (2664 binary)
Root relaxation presolved: 2713 rows, 88087 columns, 261383 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16144    5.2972470e+01   0.000000e+00   3.898348e+04      5s
   34504    5.2952477e+01   0.000000e+00   8.777790e+03     10s
   51064    5.2947382e+01   0.000000e+00   1.124210e+03     15s
   55629    5.3000000e+01   0.000000e+00   0.000000e+00     16s
   55629    5.3000000e+01   0.000000e+00   0.000000e+00     16s

Root relaxation: objective 5.300000e+01, 55629 iterations, 15.17 seconds (11.00 work units)
Total elapsed time = 29.62s (DegenMoves)
Total elapsed time = 34.03s (DegenMoves)
Total elapsed time = 35.98s (DegenMoves)

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

     0     0   53.00000    0  540          -   53.00000      -     -   38s
H    0     0                      10.0000000   53.00000   430%     -   40s
     0     0          -    0        10.00000   53.00000   430%     -   50s

Cutting planes:
  Gomory: 41
  Cover: 43
  Clique: 17
  MIR: 411
  StrongCG: 1
  GUB cover: 4
  Zero half: 52
  RLT: 74
  BQP: 4

Explored 1 nodes (80046 simplex iterations) in 50.04 seconds (41.97 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 10 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.300000000000e+01, gap 430.0000%

Wrote result file './lp_solutions/grafo1409.49.sol'

