
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:08:45 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5149.41.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/grafo5149.41.lp
Reading time = 0.14 seconds
: 85491 rows, 2313 columns, 258445 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 85491 rows, 2313 columns and 258445 nonzeros
Model fingerprint: 0x752873fd
Variable types: 48 continuous, 2265 integer (2265 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 17098 rows and 28 columns
Presolve time: 0.58s
Presolved: 68393 rows, 2285 columns, 207639 nonzeros
Variable types: 0 continuous, 2285 integer (2237 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2282 rows, 70675 columns, 209924 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   23226    4.7912993e+01   0.000000e+00   3.752783e+04      5s
   46987    4.7900689e+01   0.000000e+00   8.409288e+02     10s
   51278    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   51278    4.8000000e+01   0.000000e+00   0.000000e+00     11s
   51278    4.8000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.800000e+01, 51278 iterations, 10.24 seconds (8.77 work units)
Total elapsed time = 23.73s (DegenMoves)
Total elapsed time = 25.28s (DegenMoves)

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

     0     0   48.00000    0  623   10.00000   48.00000   380%     -   25s
H    0     0                      11.0000000   48.00000   336%     -   25s
     0     0   48.00000    0  867   11.00000   48.00000   336%     -   42s
     0     0   48.00000    0  914   11.00000   48.00000   336%     -   45s

Cutting planes:
  Gomory: 4
  Lift-and-project: 28
  Cover: 21
  Clique: 6
  MIR: 154
  Zero half: 39
  RLT: 53
  BQP: 1

Explored 1 nodes (76845 simplex iterations) in 50.55 seconds (43.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 10 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.800000000000e+01, gap 336.3636%

Wrote result file './lp_solutions/grafo5149.41.sol'

