
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:48:22 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5635.47.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/grafo5635.47.lp
Reading time = 0.20 seconds
: 115219 rows, 2486 columns, 347535 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 115219 rows, 2486 columns and 347535 nonzeros
Model fingerprint: 0x39c53105
Variable types: 47 continuous, 2439 integer (2439 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 1.0000000
Presolve removed 28081 rows and 30 columns
Presolve time: 0.92s
Presolved: 87138 rows, 2456 columns, 263656 nonzeros
Variable types: 0 continuous, 2456 integer (2409 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2453 rows, 89591 columns, 266112 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20837    4.2971118e+01   0.000000e+00   3.858246e+04      5s
   38789    4.2956125e+01   0.000000e+00   4.365359e+03     10s
   51845    4.2953353e+01   0.000000e+00   7.412621e+02     15s
   61147    4.3000000e+01   0.000000e+00   0.000000e+00     18s
   61147    4.3000000e+01   0.000000e+00   0.000000e+00     18s
   61147    4.3000000e+01   0.000000e+00   0.000000e+00     18s

Root relaxation: objective 4.300000e+01, 61147 iterations, 16.74 seconds (11.84 work units)
Total elapsed time = 34.63s (DegenMoves)
Total elapsed time = 35.91s (DegenMoves)

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

     0     0   43.00000    0  825   10.00000   43.00000   330%     -   40s
H    0     0                      11.0000000   43.00000   291%     -   40s
     0     0          -    0        11.00000   43.00000   291%     -   50s

Cutting planes:
  Gomory: 23
  Cover: 22
  Clique: 25
  MIR: 131
  GUB cover: 3
  Zero half: 45
  RLT: 65
  BQP: 4

Explored 1 nodes (80478 simplex iterations) in 50.02 seconds (42.59 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 1 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.300000000000e+01, gap 290.9091%

Wrote result file './lp_solutions/grafo5635.47.sol'

