
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 05:39:00 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7563.42.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/grafo7563.42.lp
Reading time = 0.19 seconds
: 123768 rows, 2833 columns, 374061 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 123768 rows, 2833 columns and 374061 nonzeros
Model fingerprint: 0xea093f8e
Variable types: 56 continuous, 2777 integer (2777 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]
Presolve removed 26502 rows and 1 columns
Presolve time: 0.70s
Presolved: 97266 rows, 2832 columns, 295004 nonzeros
Variable types: 0 continuous, 2832 integer (2776 binary)
Found heuristic solution: objective 8.0000000
Root relaxation presolved: 2808 rows, 100074 columns, 297836 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18576    6.4663546e+01   0.000000e+00   2.596620e+05      5s
   37213    6.4613359e+01   0.000000e+00   2.054479e+04     10s
   55429    6.4601438e+01   0.000000e+00   1.527293e+04     15s
   71462    6.5000000e+01   0.000000e+00   0.000000e+00     20s
   71462    6.5000000e+01   0.000000e+00   0.000000e+00     20s
   71462    6.5000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 6.500000e+01, 71462 iterations, 18.79 seconds (15.06 work units)
Total elapsed time = 46.64s (DegenMoves)

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

     0     0   65.00000    0 1073    8.00000   65.00000   712%     -   50s

Explored 1 nodes (92658 simplex iterations) in 50.04 seconds (47.60 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 8 

Time limit reached
Best objective 8.000000000000e+00, best bound 6.500000000000e+01, gap 712.5000%

Wrote result file './lp_solutions/grafo7563.42.sol'

