
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:29:34 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6419.45.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/grafo6419.45.lp
Reading time = 0.41 seconds
: 228389 rows, 2774 columns, 687580 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 228389 rows, 2774 columns and 687580 nonzeros
Model fingerprint: 0xc63e7e6c
Variable types: 51 continuous, 2723 integer (2723 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 86481 rows and 12 columns
Presolve time: 1.93s
Presolved: 141908 rows, 2762 columns, 428582 nonzeros
Variable types: 0 continuous, 2762 integer (2711 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2754 rows, 144662 columns, 431344 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   13569    9.7923726e+01   0.000000e+00   5.686038e+05      5s
   29757    6.2905582e+01   0.000000e+00   1.095740e+05     10s
   44358    5.8823945e+01   0.000000e+00   6.580731e+05     15s
   60270    5.8782130e+01   0.000000e+00   2.197435e+04     20s
   74958    5.8765557e+01   0.000000e+00   1.225889e+04     25s
   91482    5.8756839e+01   0.000000e+00   1.109609e+04     30s
  107394    5.8753698e+01   0.000000e+00   3.032541e+02     35s
  117121    5.9000000e+01   0.000000e+00   0.000000e+00     38s
  117121    5.9000000e+01   0.000000e+00   0.000000e+00     38s
  117121    5.9000000e+01   0.000000e+00   0.000000e+00     38s

Root relaxation: objective 5.900000e+01, 117121 iterations, 35.80 seconds (20.23 work units)

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

     0     0   59.00000    0 1637    9.00000   59.00000   556%     -   50s

Explored 1 nodes (122218 simplex iterations) in 50.06 seconds (32.68 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.900000000000e+01, gap 555.5556%

Wrote result file './lp_solutions/grafo6419.45.sol'

