
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 03:51:32 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5916.44.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/grafo5916.44.lp
Reading time = 0.41 seconds
: 224103 rows, 2457 columns, 674352 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 224103 rows, 2457 columns and 674352 nonzeros
Model fingerprint: 0x4ace967b
Variable types: 46 continuous, 2411 integer (2411 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 95262 rows and 34 columns
Presolve time: 1.88s
Presolved: 128841 rows, 2423 columns, 388917 nonzeros
Variable types: 0 continuous, 2423 integer (2377 binary)
Root relaxation presolved: 2416 rows, 131257 columns, 391340 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   14927    5.5053505e+01   0.000000e+00   4.747921e+05      5s
   33447    4.6962568e+01   0.000000e+00   1.216221e+04     10s
   51204    4.6951559e+01   0.000000e+00   5.625712e+04     15s
   68963    4.6947814e+01   0.000000e+00   4.273207e+02     20s
   78546    4.7000000e+01   0.000000e+00   0.000000e+00     23s
   78546    4.7000000e+01   0.000000e+00   0.000000e+00     23s
   78546    4.7000000e+01   0.000000e+00   0.000000e+00     23s

Root relaxation: objective 4.700000e+01, 78546 iterations, 20.72 seconds (13.46 work units)
Total elapsed time = 42.38s (DegenMoves)

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

     0     0   47.00000    0  647          -   47.00000      -     -   50s
H    0     0                       8.0000000   47.00000   488%     -   50s

Explored 1 nodes (92239 simplex iterations) in 50.09 seconds (43.76 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 4.700000000000e+01, gap 487.5000%

Wrote result file './lp_solutions/grafo5916.44.sol'

