
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:51:33 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6357.46.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/grafo6357.46.lp
Reading time = 0.44 seconds
: 230586 rows, 2729 columns, 694052 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 230586 rows, 2729 columns and 694052 nonzeros
Model fingerprint: 0xf8dbbbf6
Variable types: 50 continuous, 2679 integer (2679 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 123917 rows and 95 columns
Presolve time: 1.76s
Presolved: 106669 rows, 2634 columns, 322610 nonzeros
Variable types: 0 continuous, 2634 integer (2584 binary)
Root relaxation presolved: 2628 rows, 109297 columns, 325244 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   12292    5.6431498e+01   0.000000e+00   1.768353e+05      5s
   28178    5.0312642e+01   0.000000e+00   3.937570e+04     10s
   45013    4.9768853e+01   0.000000e+00   1.270376e+04     15s
   61393    4.9757975e+01   0.000000e+00   5.624486e+04     20s
   77773    4.9754609e+01   0.000000e+00   2.912497e+03     25s
   82802    5.0000000e+01   0.000000e+00   0.000000e+00     27s
   82802    5.0000000e+01   0.000000e+00   0.000000e+00     27s
   82802    5.0000000e+01   0.000000e+00   0.000000e+00     27s

Root relaxation: objective 5.000000e+01, 82802 iterations, 24.69 seconds (14.41 work units)

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

     0     0   50.00000    0 1552          -   50.00000      -     -   50s
H    0     0                       6.0000000   50.00000   733%     -   50s

Explored 1 nodes (94643 simplex iterations) in 50.07 seconds (35.63 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 6 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.000000000000e+01, gap 733.3333%

Wrote result file './lp_solutions/grafo6357.46.sol'

