
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:24:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6944.47.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/grafo6944.47.lp
Reading time = 0.35 seconds
: 179568 rows, 3090 columns, 541500 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 179568 rows, 3090 columns and 541500 nonzeros
Model fingerprint: 0x54578467
Variable types: 55 continuous, 3035 integer (3035 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 52471 rows and 24 columns
Presolve time: 1.64s
Presolved: 127097 rows, 3066 columns, 384802 nonzeros
Variable types: 0 continuous, 3066 integer (3011 binary)
Root relaxation presolved: 3054 rows, 130151 columns, 387868 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12244    5.9010077e+01   0.000000e+00   5.965816e+05      5s
   25826    5.1938839e+01   0.000000e+00   5.771504e+04     10s
   39815    5.1917743e+01   0.000000e+00   8.411127e+04     15s
   53283    5.1906208e+01   0.000000e+00   2.075430e+04     20s
   65715    5.1900368e+01   0.000000e+00   9.463777e+04     25s
   78665    5.1896749e+01   0.000000e+00   1.174572e+03     30s
   91097    5.1895377e+01   0.000000e+00   2.925538e+02     35s
  104047    5.1895055e+01   0.000000e+00   4.160352e+01     40s
  107742    5.2000000e+01   0.000000e+00   0.000000e+00     42s
  107742    5.2000000e+01   0.000000e+00   0.000000e+00     42s
  107742    5.2000000e+01   0.000000e+00   0.000000e+00     42s

Root relaxation: objective 5.200000e+01, 107742 iterations, 39.69 seconds (23.59 work units)

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

     0     0   52.00000    0 1580          -   52.00000      -     -   50s
H    0     0                       3.0000000   52.00000  1633%     -   50s

Explored 1 nodes (110719 simplex iterations) in 50.08 seconds (32.83 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 5.200000000000e+01, gap 1633.3333%

Wrote result file './lp_solutions/grafo6944.47.sol'

