
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 11:04:21 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7589.47.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/grafo7589.47.lp
Reading time = 0.70 seconds
: 404142 rows, 4153 columns, 1216877 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 404142 rows, 4153 columns and 1216877 nonzeros
Model fingerprint: 0xdfaa8a19
Variable types: 70 continuous, 4083 integer (4083 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, 7e+01]
Found heuristic solution: objective 1.0000000
Presolve removed 143220 rows and 39 columns
Presolve time: 3.47s
Presolved: 260922 rows, 4114 columns, 787798 nonzeros
Variable types: 0 continuous, 4114 integer (4044 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 4102 rows, 265024 columns, 791912 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
    2223    2.9933474e+02   0.000000e+00   2.510263e+06      5s
   20644    1.4429926e+02   0.000000e+00   2.084555e+06     11s
   33958    1.1861519e+02   0.000000e+00   5.268819e+05     15s
   45678    1.0026514e+02   0.000000e+00   6.667928e+05     20s
   58383    9.4743102e+01   0.000000e+00   4.132961e+05     26s
   68001    8.4720773e+01   0.000000e+00   1.236285e+06     30s
   79413    8.4683006e+01   0.000000e+00   1.786063e+05     36s
   89334    8.4652821e+01   0.000000e+00   2.211345e+05     40s
   99742    8.4627074e+01   0.000000e+00   4.944362e+05     45s

Root relaxation: time limit, 108689 iterations, 46.11 seconds (31.15 work units)

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

     0     0          -    0         6.00000  409.00000  6717%     -   50s

Explored 1 nodes (108689 simplex iterations) in 50.04 seconds (34.88 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 1 

Time limit reached
Best objective 6.000000000000e+00, best bound 4.090000000000e+02, gap 6716.6667%

Wrote result file './lp_solutions/grafo7589.47.sol'

