
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 04:31:15 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6786.45.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/grafo6786.45.lp
Reading time = 0.90 seconds
: 448240 rows, 3844 columns, 1348785 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 448240 rows, 3844 columns and 1348785 nonzeros
Model fingerprint: 0x2011ce25
Variable types: 65 continuous, 3779 integer (3779 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, 6e+01]
Found heuristic solution: objective 3.0000000
Presolve removed 180830 rows and 8 columns
Presolve time: 3.85s
Presolved: 267410 rows, 3836 columns, 806867 nonzeros
Variable types: 0 continuous, 3836 integer (3771 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 3823 rows, 271233 columns, 810703 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
       0    1.2971200e+03   0.000000e+00   1.535322e+06      6s
   20711    1.6203535e+02   0.000000e+00   5.924189e+05     11s
   30360    1.4797698e+02   0.000000e+00   1.775302e+06     16s
   39998    1.3819125e+02   0.000000e+00   9.641577e+05     20s
   51721    1.2066068e+02   0.000000e+00   6.184872e+05     26s
   60158    1.0798510e+02   0.000000e+00   1.272654e+06     31s
   70476    1.0492912e+02   0.000000e+00   2.608070e+05     36s
   79204    9.2905192e+01   0.000000e+00   6.064067e+05     41s
   87769    8.5883846e+01   0.000000e+00   8.696473e+04     45s

Root relaxation: time limit, 96720 iterations, 45.62 seconds (28.32 work units)

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

     0     0          -    0         9.00000  524.00000  5722%     -   50s

Explored 1 nodes (96720 simplex iterations) in 50.05 seconds (32.01 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 9 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 5.240000000000e+02, gap 5722.2222%

Wrote result file './lp_solutions/grafo6786.45.sol'

