
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 08:06:16 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5786.43.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/grafo5786.43.lp
Reading time = 0.15 seconds
: 96487 rows, 2211 columns, 291162 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 96487 rows, 2211 columns and 291162 nonzeros
Model fingerprint: 0x8e582ef3
Variable types: 45 continuous, 2166 integer (2166 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 24546 rows and 22 columns
Presolve time: 0.70s
Presolved: 71941 rows, 2189 columns, 217761 nonzeros
Variable types: 0 continuous, 2189 integer (2144 binary)
Root relaxation presolved: 2189 rows, 74130 columns, 219950 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26611    4.6778337e+01   0.000000e+00   9.392268e+02      5s
   31985    4.7000000e+01   0.000000e+00   0.000000e+00      6s
   31985    4.7000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.700000e+01, 31985 iterations, 5.23 seconds (4.64 work units)
Total elapsed time = 11.89s (DegenMoves)

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

     0     0   47.00000    0  384          -   47.00000      -     -   13s
H    0     0                       8.0000000   47.00000   488%     -   13s
H    0     0                      11.0000000   47.00000   327%     -   15s
     0     0   47.00000    0  770   11.00000   47.00000   327%     -   26s
H    0     0                      13.0000000   47.00000   262%     -   26s
     0     0   47.00000    0  750   13.00000   47.00000   262%     -   27s
     0     0   47.00000    0  638   13.00000   47.00000   262%     -   50s

Cutting planes:
  Gomory: 6
  Lift-and-project: 25
  Cover: 9
  Clique: 16
  MIR: 144
  StrongCG: 2
  Zero half: 33
  RLT: 78

Explored 1 nodes (64850 simplex iterations) in 50.13 seconds (48.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 13 11 8 

Time limit reached
Best objective 1.300000000000e+01, best bound 4.700000000000e+01, gap 261.5385%

Wrote result file './lp_solutions/grafo5786.43.sol'

