
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 07:31:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6289.48.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/grafo6289.48.lp
Reading time = 0.19 seconds
: 121572 rows, 3082 columns, 367440 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 121572 rows, 3082 columns and 367440 nonzeros
Model fingerprint: 0x37dd3c18
Variable types: 56 continuous, 3026 integer (3026 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 18675 rows and 2 columns
Presolve time: 0.68s
Presolved: 102897 rows, 3080 columns, 311934 nonzeros
Variable types: 0 continuous, 3080 integer (3024 binary)
Root relaxation presolved: 3044 rows, 105941 columns, 315014 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18423    5.9636848e+01   0.000000e+00   4.361398e+04      5s
   36738    5.9596669e+01   0.000000e+00   2.691653e+04     10s
   53832    5.9589034e+01   0.000000e+00   5.476249e+02     15s
   64558    6.0000000e+01   0.000000e+00   0.000000e+00     18s
   64558    6.0000000e+01   0.000000e+00   0.000000e+00     18s
   64558    6.0000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 6.000000e+01, 64558 iterations, 17.44 seconds (13.68 work units)
Total elapsed time = 44.62s (DegenMoves)

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

     0     0   60.00000    0 1073          -   60.00000      -     -   50s
H    0     0                       2.0000000   60.00000  2900%     -   50s

Explored 1 nodes (86958 simplex iterations) in 50.06 seconds (48.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 2 

Time limit reached
Best objective 2.000000000000e+00, best bound 6.000000000000e+01, gap 2900.0000%

Wrote result file './lp_solutions/grafo6289.48.sol'

