
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 09:20:10 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7729.44.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/grafo7729.44.lp
Reading time = 0.18 seconds
: 110929 rows, 2149 columns, 334337 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 110929 rows, 2149 columns and 334337 nonzeros
Model fingerprint: 0xbe6a401d
Variable types: 43 continuous, 2106 integer (2106 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 2.0000000
Presolve removed 33148 rows and 36 columns
Presolve time: 0.83s
Presolved: 77781 rows, 2113 columns, 235267 nonzeros
Variable types: 0 continuous, 2113 integer (2070 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2110 rows, 79891 columns, 237380 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26854    3.3806926e+01   0.000000e+00   5.196585e+03      5s
   31466    3.4000000e+01   0.000000e+00   0.000000e+00      6s
   31466    3.4000000e+01   0.000000e+00   0.000000e+00      6s
   31466    3.4000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.400000e+01, 31466 iterations, 5.00 seconds (4.51 work units)
Total elapsed time = 13.95s (DegenMoves)
Total elapsed time = 24.20s (DegenMoves)
Total elapsed time = 25.93s (DegenMoves)

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

     0     0   34.00000    0  399    9.00000   34.00000   278%     -   27s
H    0     0                      11.0000000   34.00000   209%     -   27s
     0     0   34.00000    0  612   11.00000   34.00000   209%     -   35s
H    0     0                      13.0000000   34.00000   162%     -   35s
     0     0   34.00000    0  626   13.00000   34.00000   162%     -   38s
     0     0   34.00000    0  529   13.00000   34.00000   162%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 2
  Cover: 6
  Clique: 22
  MIR: 82
  StrongCG: 1
  GUB cover: 1
  Zero half: 54
  RLT: 38
  BQP: 3

Explored 1 nodes (72201 simplex iterations) in 50.03 seconds (61.56 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 13 11 9 2 

Time limit reached
Best objective 1.300000000000e+01, best bound 3.400000000000e+01, gap 161.5385%

Wrote result file './lp_solutions/grafo7729.44.sol'

