
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 06:10:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7245.49.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/grafo7245.49.lp
Reading time = 0.34 seconds
: 177170 rows, 3429 columns, 534786 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 177170 rows, 3429 columns and 534786 nonzeros
Model fingerprint: 0xaca382ab
Variable types: 60 continuous, 3369 integer (3369 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 39451 rows and 2 columns
Presolve time: 1.36s
Presolved: 137719 rows, 3427 columns, 416837 nonzeros
Variable types: 0 continuous, 3427 integer (3367 binary)
Root relaxation presolved: 3394 rows, 141113 columns, 420264 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   10355    5.9667457e+01   0.000000e+00   5.888319e+05      5s
   22712    5.7917317e+01   0.000000e+00   1.064215e+05     10s
   33889    5.7895031e+01   0.000000e+00   6.013941e+04     15s
   45054    5.7883310e+01   0.000000e+00   2.622941e+04     20s
   55709    5.7875719e+01   0.000000e+00   2.625132e+04     25s
   66908    5.7869920e+01   0.000000e+00   2.620488e+04     30s
   78074    5.7865863e+01   0.000000e+00   2.595196e+04     35s
   88721    5.7862886e+01   0.000000e+00   4.388900e+03     40s
  100384    5.7860387e+01   0.000000e+00   2.175507e+03     45s

Root relaxation: time limit, 0 iterations, 48.23 seconds (31.66 work units)

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

H    0     0                       4.0000000  292.00000  7200%     -   50s

Explored 1 nodes (0 simplex iterations) in 50.03 seconds (33.16 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 4 

Time limit reached
Best objective 4.000000000000e+00, best bound 2.920000000000e+02, gap 7200.0000%

Wrote result file './lp_solutions/grafo7245.49.sol'

