
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:12:40 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo4015.47.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/grafo4015.47.lp
Reading time = 0.61 seconds
: 330313 rows, 3318 columns, 994062 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 330313 rows, 3318 columns and 994062 nonzeros
Model fingerprint: 0x92137a1e
Variable types: 58 continuous, 3260 integer (3260 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 127676 rows and 11 columns
Presolve time: 2.80s
Presolved: 202637 rows, 3307 columns, 611448 nonzeros
Variable types: 0 continuous, 3307 integer (3249 binary)
Root relaxation presolved: 3290 rows, 205927 columns, 614755 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    5288    1.7907584e+02   0.000000e+00   1.785172e+06      5s
   24633    1.0935029e+02   0.000000e+00   6.374093e+05     11s
   37527    8.2996114e+01   0.000000e+00   2.530451e+05     15s
   50463    7.6921049e+01   0.000000e+00   5.619153e+05     20s
   62743    6.6865077e+01   0.000000e+00   1.338995e+05     25s
   74509    6.6825781e+01   0.000000e+00   5.317346e+04     30s
   86217    6.6798766e+01   0.000000e+00   4.692314e+04     35s
   98697    6.6781963e+01   0.000000e+00   1.001889e+05     40s
  110397    6.6771453e+01   0.000000e+00   1.694772e+04     45s

Root relaxation: time limit, 0 iterations, 46.55 seconds (26.78 work units)

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

H    0     0                       2.0000000  380.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (29.55 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 3.800000000000e+02, gap 18900.0000%

Wrote result file './lp_solutions/grafo4015.47.sol'

