
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 10:49:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5707.47.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/grafo5707.47.lp
Reading time = 0.15 seconds
: 88254 rows, 2502 columns, 266702 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 88254 rows, 2502 columns and 266702 nonzeros
Model fingerprint: 0x962a42f5
Variable types: 47 continuous, 2455 integer (2455 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 14813 rows and 15 columns
Presolve time: 0.62s
Presolved: 73441 rows, 2487 columns, 222669 nonzeros
Variable types: 0 continuous, 2487 integer (2440 binary)
Root relaxation presolved: 2479 rows, 75920 columns, 225156 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21840    4.3962210e+01   0.000000e+00   2.859446e+04      5s
   38507    4.3955744e+01   0.000000e+00   8.162578e-01     10s
   38803    4.4000000e+01   0.000000e+00   0.000000e+00     10s
   38803    4.4000000e+01   0.000000e+00   0.000000e+00     10s
   38803    4.4000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 4.400000e+01, 38803 iterations, 9.73 seconds (6.45 work units)
Total elapsed time = 21.48s (DegenMoves)

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

     0     0   44.00000    0  538          -   44.00000      -     -   23s
H    0     0                       9.0000000   44.00000   389%     -   26s
     0     0   44.00000    0  714    9.00000   44.00000   389%     -   44s
     0     0   44.00000    0  684    9.00000   44.00000   389%     -   45s

Cutting planes:
  Gomory: 8
  Lift-and-project: 34
  Cover: 14
  Clique: 4
  MIR: 102
  Zero half: 13
  RLT: 33
  BQP: 1

Explored 1 nodes (57424 simplex iterations) in 50.23 seconds (28.28 work units)
Thread count was 8 (of 8 available processors)

Solution count 1: 9 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.400000000000e+01, gap 388.8889%

Wrote result file './lp_solutions/grafo5707.47.sol'

