
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:13:53 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5480.46.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/grafo5480.46.lp
Reading time = 0.32 seconds
: 200104 rows, 3122 columns, 603238 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 200104 rows, 3122 columns and 603238 nonzeros
Model fingerprint: 0x35a7930e
Variable types: 57 continuous, 3065 integer (3065 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 65760 rows and 10 columns
Presolve time: 1.34s
Presolved: 134344 rows, 3112 columns, 406462 nonzeros
Variable types: 0 continuous, 3112 integer (3055 binary)
Root relaxation presolved: 3101 rows, 137445 columns, 409574 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   16709    6.5840884e+01   0.000000e+00   1.451989e+06      5s
   33435    6.3675479e+01   0.000000e+00   7.897301e+04     10s
   51526    6.3618315e+01   0.000000e+00   1.422083e+04     15s
   68550    6.3605922e+01   0.000000e+00   3.378411e+04     20s
   83373    6.4000000e+01   0.000000e+00   0.000000e+00     25s
   83373    6.4000000e+01   0.000000e+00   0.000000e+00     25s
   83373    6.4000000e+01   0.000000e+00   0.000000e+00     25s

Root relaxation: objective 6.400000e+01, 83373 iterations, 23.09 seconds (18.04 work units)
Total elapsed time = 25.05s (DegenMoves)
Total elapsed time = 50.00s (DegenMoves)

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

     0     0   64.00000    0 1038          -   64.00000      -     -   50s
H    0     0                       3.0000000   64.00000  2033%     -   50s

Explored 1 nodes (99478 simplex iterations) in 50.16 seconds (44.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 3 

Time limit reached
Best objective 3.000000000000e+00, best bound 6.400000000000e+01, gap 2033.3333%

Wrote result file './lp_solutions/grafo5480.46.sol'

