
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:17:14 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5936.46.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/grafo5936.46.lp
Reading time = 0.48 seconds
: 292930 rows, 2950 columns, 881388 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 292930 rows, 2950 columns and 881388 nonzeros
Model fingerprint: 0x656a6ab6
Variable types: 53 continuous, 2897 integer (2897 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 2.0000000
Presolve removed 116754 rows and 8 columns
Presolve time: 1.87s
Presolved: 176176 rows, 2942 columns, 531584 nonzeros
Variable types: 0 continuous, 2942 integer (2889 binary)
Found heuristic solution: objective 16.0000000
Root relaxation presolved: 2920 rows, 179096 columns, 534526 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15652    1.0014258e+02   0.000000e+00   1.912225e+05      5s
   34286    6.2883472e+01   0.000000e+00   1.276408e+05     10s
   52866    5.6780420e+01   0.000000e+00   1.272861e+05     15s
   72108    5.6730702e+01   0.000000e+00   7.614417e+04     20s
   92088    5.6712874e+01   0.000000e+00   3.262060e+04     25s
  111328    5.6706039e+01   0.000000e+00   9.909705e+03     30s
  127897    5.7000000e+01   0.000000e+00   0.000000e+00     34s
  127897    5.7000000e+01   0.000000e+00   0.000000e+00     34s
  127897    5.7000000e+01   0.000000e+00   0.000000e+00     34s

Root relaxation: objective 5.700000e+01, 127897 iterations, 32.36 seconds (25.61 work units)

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

     0     0   57.00000    0 1661   16.00000   57.00000   256%     -   50s

Explored 1 nodes (135741 simplex iterations) in 50.07 seconds (43.75 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 16 2 

Time limit reached
Best objective 1.600000000000e+01, best bound 5.700000000000e+01, gap 256.2500%

Wrote result file './lp_solutions/grafo5936.46.sol'

