
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:21:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6082.42.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/grafo6082.42.lp
Reading time = 0.36 seconds
: 196678 rows, 2828 columns, 592780 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 196678 rows, 2828 columns and 592780 nonzeros
Model fingerprint: 0x1384c0e7
Variable types: 54 continuous, 2774 integer (2774 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]
Found heuristic solution: objective 3.0000000
Presolve removed 67743 rows and 9 columns
Presolve time: 1.60s
Presolved: 128935 rows, 2819 columns, 390142 nonzeros
Variable types: 0 continuous, 2819 integer (2765 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 2806 rows, 131741 columns, 392961 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16338    6.5567535e+01   0.000000e+00   2.011644e+06      5s
   31659    5.2954246e+01   0.000000e+00   1.145470e+05     10s
   45780    5.2932116e+01   0.000000e+00   2.873971e+04     15s
   60918    5.2919119e+01   0.000000e+00   3.192434e+04     20s
   75504    5.2913542e+01   0.000000e+00   1.812958e+04     25s
   88470    5.2912284e+01   0.000000e+00   4.214558e+02     30s
  100671    5.3000000e+01   0.000000e+00   0.000000e+00     35s
  100671    5.3000000e+01   0.000000e+00   0.000000e+00     35s
  100671    5.3000000e+01   0.000000e+00   0.000000e+00     35s

Root relaxation: objective 5.300000e+01, 100671 iterations, 32.89 seconds (21.76 work units)

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

     0     0   53.00000    0 1587   13.00000   53.00000   308%     -   50s

Explored 1 nodes (106696 simplex iterations) in 50.07 seconds (36.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.300000000000e+01, gap 307.6923%

Wrote result file './lp_solutions/grafo6082.42.sol'

