
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 06:58:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6471.46.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/grafo6471.46.lp
Reading time = 0.23 seconds
: 145716 rows, 2757 columns, 439440 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 145716 rows, 2757 columns and 439440 nonzeros
Model fingerprint: 0x3e05eb6d
Variable types: 51 continuous, 2706 integer (2706 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 42192 rows and 18 columns
Presolve time: 0.97s
Presolved: 103524 rows, 2739 columns, 313341 nonzeros
Variable types: 0 continuous, 2739 integer (2688 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2733 rows, 106257 columns, 316080 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   18216    6.1704427e+01   0.000000e+00   2.693386e+05      5s
   37671    6.1637599e+01   0.000000e+00   5.668918e+04     10s
   57242    6.1618236e+01   0.000000e+00   3.869740e+03     15s
   76998    6.2000000e+01   0.000000e+00   0.000000e+00     20s
   76998    6.2000000e+01   0.000000e+00   0.000000e+00     20s
   76998    6.2000000e+01   0.000000e+00   0.000000e+00     20s

Root relaxation: objective 6.200000e+01, 76998 iterations, 18.77 seconds (15.97 work units)
Total elapsed time = 20.18s (DegenMoves)
Total elapsed time = 48.66s (DegenMoves)

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

     0     0   62.00000    0 1116    5.00000   62.00000  1140%     -   50s

Explored 1 nodes (94743 simplex iterations) in 50.04 seconds (47.72 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 5 

Time limit reached
Best objective 5.000000000000e+00, best bound 6.200000000000e+01, gap 1140.0000%

Wrote result file './lp_solutions/grafo6471.46.sol'

