
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:01:50 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6988.47.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/grafo6988.47.lp
Reading time = 0.28 seconds
: 135450 rows, 2983 columns, 408981 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 135450 rows, 2983 columns and 408981 nonzeros
Model fingerprint: 0x6437909e
Variable types: 54 continuous, 2929 integer (2929 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]
Presolve removed 32945 rows and 2 columns
Presolve time: 1.17s
Presolved: 102505 rows, 2981 columns, 310718 nonzeros
Variable types: 0 continuous, 2981 integer (2927 binary)
Root relaxation presolved: 2948 rows, 105453 columns, 313699 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   11510    5.9019641e+01   0.000000e+00   7.444773e+05      5s
   25439    5.6972950e+01   0.000000e+00   1.368342e+05     10s
   38337    5.6957495e+01   0.000000e+00   3.016991e+04     15s
   51657    5.6950036e+01   0.000000e+00   1.215757e+04     20s
   62313    5.6947303e+01   0.000000e+00   1.129398e+04     25s
   72525    5.6946192e+01   0.000000e+00   9.567301e+02     30s
   83279    5.7000000e+01   0.000000e+00   0.000000e+00     34s
   83279    5.7000000e+01   0.000000e+00   0.000000e+00     34s
   83279    5.7000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 5.700000e+01, 83279 iterations, 32.66 seconds (18.41 work units)

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

     0     0   57.00000    0 1586          -   57.00000      -     -   50s
H    0     0                       5.0000000   57.00000  1040%     -   50s

Explored 1 nodes (90656 simplex iterations) in 50.05 seconds (32.22 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 5.700000000000e+01, gap 1040.0000%

Wrote result file './lp_solutions/grafo6988.47.sol'

