
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:47:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5832.46.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/grafo5832.46.lp
Reading time = 0.28 seconds
: 156471 rows, 2977 columns, 472141 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 156471 rows, 2977 columns and 472141 nonzeros
Model fingerprint: 0x77efc721
Variable types: 55 continuous, 2922 integer (2922 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, 6e+01]
Presolve removed 40659 rows and 32 columns
Presolve time: 1.53s
Presolved: 115812 rows, 2945 columns, 350719 nonzeros
Variable types: 0 continuous, 2945 integer (2890 binary)
Found heuristic solution: objective 11.0000000
Root relaxation presolved: 2945 rows, 118757 columns, 353664 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12250    5.4814974e+01   0.000000e+00   2.020897e+05      5s
   26940    5.1703160e+01   0.000000e+00   8.942431e+04     10s
   41370    5.1670157e+01   0.000000e+00   2.035468e+04     15s
   54838    5.1660377e+01   0.000000e+00   8.037725e+03     20s
   67825    5.1656843e+01   0.000000e+00   3.186243e+03     25s
   79410    5.2000000e+01   0.000000e+00   0.000000e+00     30s
   79410    5.2000000e+01   0.000000e+00   0.000000e+00     30s

Root relaxation: objective 5.200000e+01, 79410 iterations, 27.90 seconds (17.67 work units)

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

     0     0   52.00000    0 1525   11.00000   52.00000   373%     -   50s

Explored 1 nodes (88373 simplex iterations) in 50.05 seconds (35.70 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 11 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.200000000000e+01, gap 372.7273%

Wrote result file './lp_solutions/grafo5832.46.sol'

