
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:17:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6600.47.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/grafo6600.47.lp
Reading time = 0.77 seconds
: 415665 rows, 3849 columns, 1250939 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 415665 rows, 3849 columns and 1250939 nonzeros
Model fingerprint: 0xfebd733e
Variable types: 65 continuous, 3784 integer (3784 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 161831 rows and 14 columns
Presolve time: 3.48s
Presolved: 253834 rows, 3835 columns, 765917 nonzeros
Variable types: 0 continuous, 3835 integer (3770 binary)
Root relaxation presolved: 3825 rows, 257659 columns, 769752 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.0419800e+03   0.000000e+00   1.085574e+06      5s
   18739    1.6157218e+02   0.000000e+00   1.868930e+06     10s
   32318    1.2441430e+02   0.000000e+00   8.029188e+05     16s
   41469    1.1619193e+02   0.000000e+00   4.744458e+05     20s
   51372    9.2860395e+01   0.000000e+00   1.663218e+06     25s
   62249    9.0791137e+01   0.000000e+00   9.093110e+05     30s
   71632    8.4749701e+01   0.000000e+00   3.251170e+05     35s
   80689    8.4711476e+01   0.000000e+00   1.637481e+05     40s
   89709    8.3684644e+01   0.000000e+00   1.645528e+05     45s

Root relaxation: time limit, 0 iterations, 45.71 seconds (25.54 work units)

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

H    0     0                       2.0000000  449.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.08 seconds (29.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 4.490000000000e+02, gap 22350.0000%

Wrote result file './lp_solutions/grafo6600.47.sol'

