
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:22:51 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6157.42.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/grafo6157.42.lp
Reading time = 0.71 seconds
: 337086 rows, 3436 columns, 1014858 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 337086 rows, 3436 columns and 1014858 nonzeros
Model fingerprint: 0x41a1b2c8
Variable types: 62 continuous, 3374 integer (3374 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 129892 rows and 9 columns
Presolve time: 2.79s
Presolved: 207194 rows, 3427 columns, 625742 nonzeros
Variable types: 0 continuous, 3427 integer (3365 binary)
Root relaxation presolved: 3405 rows, 210599 columns, 629169 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    4230    2.2367579e+02   0.000000e+00   4.001450e+06      5s
   19460    1.1875024e+02   0.000000e+00   6.674232e+06     10s
   31311    9.1462051e+01   0.000000e+00   3.179550e+05     16s
   41725    7.9864402e+01   0.000000e+00   7.093447e+05     20s
   52866    7.7783209e+01   0.000000e+00   5.630949e+05     25s
   63047    7.5726786e+01   0.000000e+00   2.949714e+05     30s
   73987    7.5693421e+01   0.000000e+00   7.852967e+04     35s
   84127    7.5672033e+01   0.000000e+00   1.361094e+04     40s
   94267    7.5658187e+01   0.000000e+00   2.055710e+04     45s
  104407    7.5649759e+01   0.000000e+00   8.519272e+04     50s

Root relaxation: time limit, 0 iterations, 46.55 seconds (28.18 work units)

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

H    0     0                       2.0000000  452.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (31.04 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 4.520000000000e+02, gap 22500.0000%

Wrote result file './lp_solutions/grafo6157.42.sol'

