
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:48:54 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11447.37.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/grafo11447.37.lp
Reading time = 0.23 seconds
: 132950 rows, 2064 columns, 400673 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 132950 rows, 2064 columns and 400673 nonzeros
Model fingerprint: 0x0f4bef25
Variable types: 46 continuous, 2018 integer (2018 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 3.0000000
Presolve removed 48457 rows and 9 columns
Presolve time: 0.87s
Presolved: 84493 rows, 2055 columns, 255550 nonzeros
Variable types: 0 continuous, 2055 integer (2009 binary)
Found heuristic solution: objective 10.0000000
Root relaxation presolved: 2043 rows, 86536 columns, 257605 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24173    4.9433278e+01   0.000000e+00   1.603975e+05      5s
   50669    4.8832759e+01   0.000000e+00   2.634896e+03     10s
   60352    4.9000000e+01   0.000000e+00   0.000000e+00     12s
   60352    4.9000000e+01   0.000000e+00   0.000000e+00     12s
   60352    4.9000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.900000e+01, 60352 iterations, 11.01 seconds (7.88 work units)
Total elapsed time = 22.42s (DegenMoves)

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

     0     0   49.00000    0  459   10.00000   49.00000   390%     -   24s
H    0     0                      12.0000000   49.00000   308%     -   24s
     0     0   49.00000    0  695   12.00000   49.00000   308%     -   35s
     0     0   49.00000    0  699   12.00000   49.00000   308%     -   36s
     0     0   49.00000    0  810   12.00000   49.00000   308%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 25
  Cover: 17
  Clique: 37
  MIR: 144
  Zero half: 37
  RLT: 78
  BQP: 2
  PSD: 2

Explored 1 nodes (83310 simplex iterations) in 50.02 seconds (49.02 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 12 10 3 

Time limit reached
Best objective 1.200000000000e+01, best bound 4.900000000000e+01, gap 308.3333%

Wrote result file './lp_solutions/grafo11447.37.sol'

