
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:40:42 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3361.44.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/grafo3361.44.lp
Reading time = 0.17 seconds
: 104294 rows, 2161 columns, 314435 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 104294 rows, 2161 columns and 314435 nonzeros
Model fingerprint: 0x093d5e80
Variable types: 43 continuous, 2118 integer (2118 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 29549 rows and 30 columns
Presolve time: 0.77s
Presolved: 74745 rows, 2131 columns, 226147 nonzeros
Variable types: 0 continuous, 2131 integer (2088 binary)
Root relaxation presolved: 2131 rows, 76876 columns, 228278 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26550    3.6937293e+01   0.000000e+00   2.426540e+03      5s
   32719    3.7000000e+01   0.000000e+00   0.000000e+00      6s
   32719    3.7000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 3.700000e+01, 32719 iterations, 5.23 seconds (4.64 work units)
Total elapsed time = 14.15s (DegenMoves)
Total elapsed time = 16.50s (DegenMoves)

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

     0     0   37.00000    0  471          -   37.00000      -     -   17s
H    0     0                       7.0000000   37.00000   429%     -   17s
H    0     0                       8.0000000   37.00000   362%     -   17s
     0     0   37.00000    0  681    8.00000   37.00000   362%     -   26s
     0     0   37.00000    0  643    8.00000   37.00000   362%     -   27s
H    0     0                      10.0000000   37.00000   270%     -   48s
     0     0   37.00000    0  414   10.00000   37.00000   270%     -   48s
     0     0   37.00000    0  417   10.00000   37.00000   270%     -   49s

Cutting planes:
  Lift-and-project: 1
  Cover: 32
  Clique: 15
  MIR: 102
  StrongCG: 2
  GUB cover: 5
  Zero half: 2
  RLT: 23

Explored 1 nodes (66094 simplex iterations) in 50.10 seconds (48.61 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 10 8 7 

Time limit reached
Best objective 1.000000000000e+01, best bound 3.700000000000e+01, gap 270.0000%

Wrote result file './lp_solutions/grafo3361.44.sol'

