
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:58:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6856.46.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/grafo6856.46.lp
Reading time = 0.47 seconds
: 256927 rows, 3328 columns, 774045 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 256927 rows, 3328 columns and 774045 nonzeros
Model fingerprint: 0x9b24aa4b
Variable types: 59 continuous, 3269 integer (3269 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 94741 rows and 26 columns
Presolve time: 2.15s
Presolved: 162186 rows, 3302 columns, 490455 nonzeros
Variable types: 0 continuous, 3302 integer (3243 binary)
Root relaxation presolved: 3299 rows, 165485 columns, 493757 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    8744    1.1195087e+02   0.000000e+00   1.916805e+06      5s
   23232    7.1982052e+01   0.000000e+00   7.264371e+05     10s
   35093    6.6681140e+01   0.000000e+00   2.688337e+05     15s
   46949    6.5640302e+01   0.000000e+00   9.218366e+04     20s
   58805    6.5626109e+01   0.000000e+00   6.162920e+03     25s
   70037    6.5620706e+01   0.000000e+00   2.774502e+03     30s
   80645    6.5618625e+01   0.000000e+00   7.916815e+02     35s
   87023    6.6000000e+01   0.000000e+00   0.000000e+00     38s
   87023    6.6000000e+01   0.000000e+00   0.000000e+00     38s
   87023    6.6000000e+01   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 6.600000e+01, 87023 iterations, 35.64 seconds (20.57 work units)

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

     0     0   66.00000    0 1575          -   66.00000      -     -   50s
H    0     0                       6.0000000   66.00000  1000%     -   50s

Explored 1 nodes (90958 simplex iterations) in 50.09 seconds (33.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 6.600000000000e+01, gap 1000.0000%

Wrote result file './lp_solutions/grafo6856.46.sol'

