
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 07:45:39 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5157.39.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/grafo5157.39.lp
Reading time = 0.38 seconds
: 233746 rows, 2410 columns, 703409 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 233746 rows, 2410 columns and 703409 nonzeros
Model fingerprint: 0x10f0d71c
Variable types: 48 continuous, 2362 integer (2362 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, 5e+01]
Presolve removed 98860 rows and 3 columns
Presolve time: 1.46s
Presolved: 134886 rows, 2407 columns, 407179 nonzeros
Variable types: 0 continuous, 2407 integer (2359 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2400 rows, 137286 columns, 409586 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   19474    9.1199556e+01   0.000000e+00   2.141208e+05      5s
   42036    5.9880969e+01   0.000000e+00   2.249827e+05     10s
   64684    5.9825849e+01   0.000000e+00   1.207686e+04     15s
   87294    5.9813330e+01   0.000000e+00   6.308676e+03     20s
  100962    6.0000000e+01   0.000000e+00   0.000000e+00     23s
  100962    6.0000000e+01   0.000000e+00   0.000000e+00     23s
  100962    6.0000000e+01   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 6.000000e+01, 100962 iterations, 21.50 seconds (15.68 work units)
Total elapsed time = 44.45s (DegenMoves)
Total elapsed time = 46.41s (DegenMoves)

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

     0     0   60.00000    0  620    8.00000   60.00000   650%     -   49s

Explored 1 nodes (115798 simplex iterations) in 50.11 seconds (48.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 6.000000000000e+01, gap 650.0000%

Wrote result file './lp_solutions/grafo5157.39.sol'

