
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:28:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6994.46.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/grafo6994.46.lp
Reading time = 0.30 seconds
: 178033 rows, 3384 columns, 537425 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 178033 rows, 3384 columns and 537425 nonzeros
Model fingerprint: 0xa30b5921
Variable types: 61 continuous, 3323 integer (3323 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 44027 rows and 2 columns
Presolve time: 1.18s
Presolved: 134006 rows, 3382 columns, 405924 nonzeros
Variable types: 0 continuous, 3382 integer (3321 binary)
Found heuristic solution: objective 14.0000000
Root relaxation presolved: 3340 rows, 137346 columns, 409306 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15054    6.7971646e+01   0.000000e+00   1.092810e+05      5s
   30329    6.7925616e+01   0.000000e+00   9.439742e+04     10s
   44534    6.7912363e+01   0.000000e+00   2.551374e+05     15s
   58249    6.7905639e+01   0.000000e+00   1.004497e+04     20s
   71944    6.7901766e+01   0.000000e+00   8.795036e+03     25s
   85633    6.7899993e+01   0.000000e+00   1.924451e+03     30s
   99322    6.7899536e+01   0.000000e+00   1.312086e+02     35s
  109777    6.8000000e+01   0.000000e+00   0.000000e+00     39s
  109777    6.8000000e+01   0.000000e+00   0.000000e+00     39s
  109777    6.8000000e+01   0.000000e+00   0.000000e+00     39s

Root relaxation: objective 6.800000e+01, 109777 iterations, 37.43 seconds (29.88 work units)

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

     0     0   68.00000    0 2099   14.00000   68.00000   386%     -   50s

Explored 1 nodes (113466 simplex iterations) in 50.05 seconds (42.40 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 14 

Time limit reached
Best objective 1.400000000000e+01, best bound 6.800000000000e+01, gap 385.7143%

Wrote result file './lp_solutions/grafo6994.46.sol'

