
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:02:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7014.47.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/grafo7014.47.lp
Reading time = 0.24 seconds
: 143521 rows, 3195 columns, 433527 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 143521 rows, 3195 columns and 433527 nonzeros
Model fingerprint: 0x71925e3f
Variable types: 58 continuous, 3137 integer (3137 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 28417 rows and 0 columns
Presolve time: 0.92s
Presolved: 115104 rows, 3195 columns, 348913 nonzeros
Variable types: 0 continuous, 3195 integer (3137 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 3150 rows, 118254 columns, 352108 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16011    5.7969897e+01   0.000000e+00   4.850634e+05      5s
   29248    5.7941210e+01   0.000000e+00   8.781446e+04     10s
   42472    5.7929047e+01   0.000000e+00   1.519021e+04     15s
   56152    5.7922328e+01   0.000000e+00   6.697154e+04     20s
   68920    5.7918980e+01   0.000000e+00   2.913129e+03     25s
   82144    5.7917429e+01   0.000000e+00   9.314176e+02     30s
   90662    5.8000000e+01   0.000000e+00   0.000000e+00     34s
   90662    5.8000000e+01   0.000000e+00   0.000000e+00     34s
   90662    5.8000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 5.800000e+01, 90662 iterations, 32.54 seconds (21.92 work units)

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

     0     0   58.00000    0 1972    3.00000   58.00000  1833%     -   50s

Explored 1 nodes (96499 simplex iterations) in 50.11 seconds (34.84 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.800000000000e+01, gap 1833.3333%

Wrote result file './lp_solutions/grafo7014.47.sol'

