
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 08:02:29 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6975.39.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/grafo6975.39.lp
Reading time = 2.12 seconds
: 1306094 rows, 13808 columns, 3932283 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 1306094 rows, 13808 columns and 3932283 nonzeros
Model fingerprint: 0x24060958
Variable types: 121 continuous, 13687 integer (13687 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, 1e+02]
Presolve removed 192649 rows and 0 columns (presolve time = 5s) ...
Presolve removed 192650 rows and 1 columns
Presolve time: 8.51s
Presolved: 1113444 rows, 13807 columns, 3355484 nonzeros
Variable types: 0 continuous, 13807 integer (13686 binary)
Root relaxation presolved: 13726 rows, 1127170 columns, 3369291 nonzeros

Deterministic concurrent LP optimizer: primal and dual simplex
Showing primal log only...


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    3.2928600e+03   0.000000e+00   7.712519e+06     19s
    6870    5.9448285e+02   0.000000e+00   7.398203e+07     21s
   15058    3.6847301e+02   0.000000e+00   2.860060e+08     27s
   20974    2.9029659e+02   0.000000e+00   3.992435e+08     32s
   24916    2.6761756e+02   0.000000e+00   9.294560e+08     35s
   30829    2.4127739e+02   0.000000e+00   3.891387e+07     41s
   34771    2.2782490e+02   0.000000e+00   8.078761e+07     45s


Root relaxation: time limit, 0 iterations, 37.27 seconds (24.18 work units)

Explored 1 nodes (0 simplex iterations) in 50.34 seconds (36.41 work units)
Thread count was 8 (of 8 available processors)

Solution count 0

Time limit reached
Best objective -, best bound 6.820000000000e+02, gap -

Unable to retrieve attribute 'X'

