
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:43:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6461.48.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/grafo6461.48.lp
Reading time = 0.21 seconds
: 108284 rows, 2839 columns, 327231 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 108284 rows, 2839 columns and 327231 nonzeros
Model fingerprint: 0xf9d1d40d
Variable types: 50 continuous, 2789 integer (2789 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 29510 rows and 100 columns
Presolve time: 0.74s
Presolved: 78774 rows, 2739 columns, 239051 nonzeros
Variable types: 0 continuous, 2739 integer (2689 binary)
Root relaxation presolved: 2723 rows, 81497 columns, 241790 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15632    4.7962609e+01   0.000000e+00   9.240305e+04      5s
   31115    4.7934765e+01   0.000000e+00   1.714832e+05     10s
   46955    4.7926381e+01   0.000000e+00   1.463356e+03     15s
   63515    4.7922841e+01   0.000000e+00   7.978222e+02     20s
   76770    4.8000000e+01   0.000000e+00   0.000000e+00     24s
   76770    4.8000000e+01   0.000000e+00   0.000000e+00     24s
   76770    4.8000000e+01   0.000000e+00   0.000000e+00     24s

Root relaxation: objective 4.800000e+01, 76770 iterations, 23.56 seconds (13.36 work units)
Total elapsed time = 44.21s (DegenMoves)
Total elapsed time = 45.31s (DegenMoves)

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

     0     0   48.00000    0  742          -   48.00000      -     -   49s
H    0     0                      14.0000000   48.00000   243%     -   50s

Explored 1 nodes (98251 simplex iterations) in 50.05 seconds (36.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 14 

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

Wrote result file './lp_solutions/grafo6461.48.sol'

