
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 05:21:59 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6814.47.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/grafo6814.47.lp
Reading time = 0.80 seconds
: 408752 rows, 3374 columns, 1229487 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 408752 rows, 3374 columns and 1229487 nonzeros
Model fingerprint: 0x0d411a14
Variable types: 59 continuous, 3315 integer (3315 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]
Found heuristic solution: objective -0.0000000
Presolve removed 167251 rows and 24 columns
Presolve time: 4.04s
Presolved: 241501 rows, 3350 columns, 728221 nonzeros
Variable types: 0 continuous, 3350 integer (3291 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 3341 rows, 244842 columns, 731571 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    6.7214000e+02   0.000000e+00   7.696792e+05      6s
   20503    1.0008691e+02   0.000000e+00   2.812566e+05     10s
   32443    7.4625676e+01   0.000000e+00   1.592871e+06     15s
   44614    7.0366180e+01   0.000000e+00   8.775262e+05     21s
   54657    6.4820066e+01   0.000000e+00   3.083630e+05     25s
   66498    6.4771169e+01   0.000000e+00   1.724164e+05     30s
   78922    6.4745867e+01   0.000000e+00   1.515895e+05     35s
   91186    6.4727562e+01   0.000000e+00   2.177161e+05     40s
  102449    6.4716582e+01   0.000000e+00   1.321703e+05     45s

Root relaxation: time limit, 113842 iterations, 45.55 seconds (26.63 work units)

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

     0     0          -    0        12.00000  381.00000  3075%     -   50s

Explored 1 nodes (113842 simplex iterations) in 50.04 seconds (30.12 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 12 -0 

Time limit reached
Best objective 1.200000000000e+01, best bound 3.810000000000e+02, gap 3075.0000%

Wrote result file './lp_solutions/grafo6814.47.sol'

