
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:05:26 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5760.43.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/grafo5760.43.lp
Reading time = 0.20 seconds
: 126418 rows, 2529 columns, 381472 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 126418 rows, 2529 columns and 381472 nonzeros
Model fingerprint: 0xe1d4f560
Variable types: 50 continuous, 2479 integer (2479 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]
Found heuristic solution: objective 7.0000000
Presolve removed 35057 rows and 23 columns
Presolve time: 0.87s
Presolved: 91361 rows, 2506 columns, 276691 nonzeros
Variable types: 0 continuous, 2506 integer (2456 binary)
Found heuristic solution: objective 12.0000000
Root relaxation presolved: 2506 rows, 93867 columns, 279197 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21712    5.2956586e+01   0.000000e+00   2.049017e+04      5s
   43032    5.2935099e+01   0.000000e+00   1.386484e+04     10s
   63053    5.2928549e+01   0.000000e+00   5.653180e+03     15s
   80155    5.3000000e+01   0.000000e+00   0.000000e+00     19s
   80155    5.3000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.300000e+01, 80155 iterations, 18.29 seconds (16.30 work units)
Total elapsed time = 37.66s (DegenMoves)
Total elapsed time = 40.76s (DegenMoves)

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

     0     0   53.00000    0  426   12.00000   53.00000   342%     -   41s
H    0     0                      13.0000000   53.00000   308%     -   41s
     0     0          -    0        13.00000   53.00000   308%     -   50s

Cutting planes:
  Gomory: 27
  Cover: 37
  Clique: 9
  MIR: 159
  GUB cover: 7
  Zero half: 100
  RLT: 63
  BQP: 1

Explored 1 nodes (103368 simplex iterations) in 50.03 seconds (51.19 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 12 7 

Time limit reached
Best objective 1.300000000000e+01, best bound 5.300000000000e+01, gap 307.6923%

Wrote result file './lp_solutions/grafo5760.43.sol'

