
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:01:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6427.44.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/grafo6427.44.lp
Reading time = 0.55 seconds
: 254023 rows, 3234 columns, 765273 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 254023 rows, 3234 columns and 765273 nonzeros
Model fingerprint: 0x1b3ffe61
Variable types: 58 continuous, 3176 integer (3176 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 90011 rows and 8 columns
Presolve time: 2.19s
Presolved: 164012 rows, 3226 columns, 495791 nonzeros
Variable types: 0 continuous, 3226 integer (3168 binary)
Found heuristic solution: objective 13.0000000
Root relaxation presolved: 3216 rows, 167228 columns, 499017 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    9478    1.2397200e+02   0.000000e+00   1.486675e+06      5s
   25065    8.3107697e+01   0.000000e+00   9.822220e+05     10s
   38134    6.7954231e+01   0.000000e+00   9.513674e+04     15s
   51321    6.7933425e+01   0.000000e+00   8.500540e+04     20s
   64160    6.7922244e+01   0.000000e+00   2.041161e+05     26s
   75509    6.7914840e+01   0.000000e+00   2.082136e+04     30s
   89108    6.7908577e+01   0.000000e+00   2.321252e+04     35s
  100643    6.7904467e+01   0.000000e+00   1.030849e+04     40s
  113317    6.7900864e+01   0.000000e+00   3.505292e+04     45s

Root relaxation: time limit, 126224 iterations, 47.48 seconds (32.97 work units)

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

     0     0          -    0        13.00000  425.00000  3169%     -   50s

Explored 1 nodes (126224 simplex iterations) in 50.03 seconds (35.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 3 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.250000000000e+02, gap 3169.2308%

Wrote result file './lp_solutions/grafo6427.44.sol'

