
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 00:55:06 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7753.40.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/grafo7753.40.lp
Reading time = 1.39 seconds
: 673383 rows, 3174 columns, 2023446 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 673383 rows, 3174 columns and 2023446 nonzeros
Model fingerprint: 0x3dd80449
Variable types: 57 continuous, 3117 integer (3117 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 325170 rows and 2 columns (presolve time = 5s) ...
Presolve removed 350043 rows and 41 columns
Presolve time: 7.42s
Presolved: 323340 rows, 3133 columns, 973585 nonzeros
Variable types: 0 continuous, 3133 integer (3076 binary)
Root relaxation presolved: 3126 rows, 326466 columns, 976718 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.0604600e+03   0.000000e+00   1.581896e+06     10s
   25762    1.7637056e+02   0.000000e+00   7.570202e+07     17s
   40874    1.6184625e+02   0.000000e+00   9.411966e+05     22s
   52726    1.4305197e+02   0.000000e+00   4.099199e+05     26s
   65879    1.1799053e+02   0.000000e+00   1.717715e+06     31s
   76338    1.0248599e+02   0.000000e+00   8.106809e+05     35s
   90357    8.8440383e+01   0.000000e+00   2.078494e+05     41s
  102218    8.0891703e+01   0.000000e+00   2.609253e+05     45s

Root relaxation: time limit, 0 iterations, 41.44 seconds (25.71 work units)

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

H    0     0                       4.0000000  529.00000      -     -   50s

Explored 1 nodes (0 simplex iterations) in 50.09 seconds (32.24 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 5.290000000000e+02, gap 13125.0000%

Wrote result file './lp_solutions/grafo7753.40.sol'

