
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:29:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7746.43.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/grafo7746.43.lp
Reading time = 0.46 seconds
: 237915 rows, 2881 columns, 716479 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 237915 rows, 2881 columns and 716479 nonzeros
Model fingerprint: 0x3c1dd643
Variable types: 55 continuous, 2826 integer (2826 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]
Found heuristic solution: objective 3.0000000
Presolve removed 88079 rows and 28 columns
Presolve time: 2.34s
Presolved: 149836 rows, 2853 columns, 452609 nonzeros
Variable types: 0 continuous, 2853 integer (2798 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2853 rows, 152689 columns, 455462 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9882    1.0632152e+02   0.000000e+00   8.749356e+06      5s
   26775    6.2997248e+01   0.000000e+00   1.027447e+05     10s
   41472    6.0913222e+01   0.000000e+00   1.631925e+05     15s
   56833    6.0842534e+01   0.000000e+00   2.156335e+05     20s
   70909    6.0819610e+01   0.000000e+00   1.124199e+04     25s
   84985    6.0809167e+01   0.000000e+00   4.112128e+03     30s
   99061    6.0804041e+01   0.000000e+00   1.885791e+03     35s
  112525    6.0802731e+01   0.000000e+00   4.520581e+00     40s
  113168    6.1000000e+01   0.000000e+00   0.000000e+00     40s
  113168    6.1000000e+01   0.000000e+00   0.000000e+00     40s

Root relaxation: objective 6.100000e+01, 113168 iterations, 37.74 seconds (22.81 work units)

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

     0     0   61.00000    0 1638   10.00000   61.00000   510%     -   50s

Explored 1 nodes (116718 simplex iterations) in 50.05 seconds (33.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 3 

Time limit reached
Best objective 1.000000000000e+01, best bound 6.100000000000e+01, gap 510.0000%

Wrote result file './lp_solutions/grafo7746.43.sol'

