
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 05:14:28 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6109.36.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/grafo6109.36.lp
Reading time = 0.65 seconds
: 393830 rows, 2226 columns, 1183525 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 393830 rows, 2226 columns and 1183525 nonzeros
Model fingerprint: 0x108216b4
Variable types: 47 continuous, 2179 integer (2179 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]
Found heuristic solution: objective -0.0000000
Presolve removed 184758 rows and 15 columns
Presolve time: 3.31s
Presolved: 209072 rows, 2211 columns, 629470 nonzeros
Variable types: 0 continuous, 2211 integer (2164 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2211 rows, 211283 columns, 631681 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    6896    1.6018317e+02   0.000000e+00   9.956448e+05      5s
   42888    7.8268691e+01   0.000000e+00   5.960796e+06     11s
   64407    5.8966128e+01   0.000000e+00   2.926328e+05     15s
   88613    5.8884725e+01   0.000000e+00   1.943624e+04     20s
  114494    5.8862315e+01   0.000000e+00   4.859761e+03     25s
  140311    5.8855782e+01   0.000000e+00   2.160945e+02     30s
  148666    5.9000000e+01   0.000000e+00   0.000000e+00     32s
  148666    5.9000000e+01   0.000000e+00   0.000000e+00     32s

Root relaxation: objective 5.900000e+01, 148666 iterations, 28.21 seconds (21.21 work units)

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

     0     0   59.00000    0 1226   10.00000   59.00000   490%     -   50s

Explored 1 nodes (155577 simplex iterations) in 50.07 seconds (42.37 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 10 -0 

Time limit reached
Best objective 1.000000000000e+01, best bound 5.900000000000e+01, gap 490.0000%

Wrote result file './lp_solutions/grafo6109.36.sol'

