
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:24:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7682.50.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/grafo7682.50.lp
Reading time = 0.60 seconds
: 300934 rows, 3401 columns, 905810 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 300934 rows, 3401 columns and 905810 nonzeros
Model fingerprint: 0x2bafa623
Variable types: 57 continuous, 3344 integer (3344 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 110432 rows and 24 columns
Presolve time: 2.77s
Presolved: 190502 rows, 3377 columns, 574986 nonzeros
Variable types: 0 continuous, 3377 integer (3320 binary)
Found heuristic solution: objective 7.0000000
Root relaxation presolved: 3371 rows, 193873 columns, 578363 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6077    1.5957118e+02   0.000000e+00   8.847573e+06      5s
   21639    9.4464452e+01   0.000000e+00   7.737048e+05     10s
   34327    7.1263130e+01   0.000000e+00   2.884976e+05     15s
   46843    6.5200575e+01   0.000000e+00   4.629977e+05     20s
   58412    6.4657559e+01   0.000000e+00   2.112942e+05     25s
   70296    6.4621112e+01   0.000000e+00   1.201285e+05     30s
   82896    6.4598618e+01   0.000000e+00   4.488762e+04     35s
   94017    6.4586574e+01   0.000000e+00   2.479687e+04     40s
  105133    6.4576706e+01   0.000000e+00   2.963145e+04     45s

Root relaxation: time limit, 116933 iterations, 46.65 seconds (26.38 work units)

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

     0     0          -    0         7.00000  379.00000  5314%     -   50s

Explored 1 nodes (116933 simplex iterations) in 50.04 seconds (29.05 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 7 

Time limit reached
Best objective 7.000000000000e+00, best bound 3.790000000000e+02, gap 5314.2857%

Wrote result file './lp_solutions/grafo7682.50.sol'

