
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 02:13:35 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5563.42.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/grafo5563.42.lp
Reading time = 0.26 seconds
: 130623 rows, 2345 columns, 393842 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 130623 rows, 2345 columns and 393842 nonzeros
Model fingerprint: 0x22d212c0
Variable types: 47 continuous, 2298 integer (2298 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 41412 rows and 28 columns
Presolve time: 1.48s
Presolved: 89211 rows, 2317 columns, 269995 nonzeros
Variable types: 0 continuous, 2317 integer (2270 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2317 rows, 91528 columns, 272312 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   15675    5.0856073e+01   0.000000e+00   1.003485e+05      5s
   35891    4.6774135e+01   0.000000e+00   2.244530e+03     10s
   50696    4.7000000e+01   0.000000e+00   0.000000e+00     14s
   50696    4.7000000e+01   0.000000e+00   0.000000e+00     14s

Root relaxation: objective 4.700000e+01, 50696 iterations, 12.72 seconds (7.50 work units)
Total elapsed time = 32.21s (DegenMoves)
Total elapsed time = 36.49s (DegenMoves)

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

     0     0   47.00000    0  612   12.00000   47.00000   292%     -   39s
H    0     0                      13.0000000   47.00000   262%     -   39s
     0     0          -    0        13.00000   47.00000   262%     -   50s

Cutting planes:
  Gomory: 36
  Cover: 41
  Clique: 19
  MIR: 107
  GUB cover: 5
  Zero half: 63
  RLT: 73
  BQP: 3

Explored 1 nodes (72090 simplex iterations) in 50.02 seconds (41.57 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 13 12 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.700000000000e+01, gap 261.5385%

Wrote result file './lp_solutions/grafo5563.42.sol'

