
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:13:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5331.46.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/grafo5331.46.lp
Reading time = 0.21 seconds
: 131975 rows, 2662 columns, 398160 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 131975 rows, 2662 columns and 398160 nonzeros
Model fingerprint: 0xaafaf15a
Variable types: 50 continuous, 2612 integer (2612 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 35360 rows and 21 columns
Presolve time: 0.91s
Presolved: 96615 rows, 2641 columns, 292480 nonzeros
Variable types: 0 continuous, 2641 integer (2591 binary)
Found heuristic solution: objective 6.0000000
Root relaxation presolved: 2635 rows, 99250 columns, 295121 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21877    4.9956051e+01   0.000000e+00   6.639990e+04      5s
   40790    4.9938457e+01   0.000000e+00   7.037096e+04     10s
   55490    4.9932601e+01   0.000000e+00   1.552073e+03     15s
   70367    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   70367    5.0000000e+01   0.000000e+00   0.000000e+00     19s
   70367    5.0000000e+01   0.000000e+00   0.000000e+00     19s

Root relaxation: objective 5.000000e+01, 70367 iterations, 17.68 seconds (13.53 work units)
Total elapsed time = 39.72s (DegenMoves)
Total elapsed time = 41.01s (DegenMoves)

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

     0     0   50.00000    0  665    6.00000   50.00000   733%     -   43s
H    0     0                       7.0000000   50.00000   614%     -   44s
     0     0          -    0         7.00000   50.00000   614%     -   50s

Cutting planes:
  Gomory: 34
  Cover: 31
  Clique: 6
  MIR: 116
  GUB cover: 3
  Zero half: 96
  RLT: 40

Explored 1 nodes (89534 simplex iterations) in 50.03 seconds (45.91 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 7 6 

Time limit reached
Best objective 7.000000000000e+00, best bound 5.000000000000e+01, gap 614.2857%

Wrote result file './lp_solutions/grafo5331.46.sol'

