
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 05:39:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7223.40.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/grafo7223.40.lp
Reading time = 1.80 seconds
: 1152145 rows, 14088 columns, 3470104 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 1152145 rows, 14088 columns and 3470104 nonzeros
Model fingerprint: 0x3759757a
Variable types: 120 continuous, 13968 integer (13968 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 89342 rows and 2 columns (presolve time = 5s) ...
Presolve removed 89342 rows and 2 columns
Presolve time: 7.06s
Presolved: 1062803 rows, 14086 columns, 3203183 nonzeros
Variable types: 0 continuous, 14086 integer (13966 binary)
Root relaxation presolved: 14020 rows, 1076823 columns, 3217269 nonzeros

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


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.8747000e+03   0.000000e+00   1.917557e+06     17s
    8842    5.1619890e+02   0.000000e+00   6.186265e+07     20s
   16349    1.7305464e+02   0.000000e+00   1.003364e+08     26s
   21899    1.4797773e+02   0.000000e+00   3.441517e+07     31s
   25599    1.4345979e+02   0.000000e+00   2.683738e+07     36s
   29299    1.3817504e+02   0.000000e+00   3.123381e+07     41s
   32999    1.3810916e+02   0.000000e+00   1.001356e+07     46s


Root relaxation: time limit, 0 iterations, 38.13 seconds (25.99 work units)

Explored 1 nodes (0 simplex iterations) in 50.37 seconds (37.29 work units)
Thread count was 8 (of 8 available processors)

Solution count 0

Time limit reached
Best objective -, best bound 5.670000000000e+02, gap -

Unable to retrieve attribute 'X'

