
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Fri Nov 22 03:39:38 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo6379.39.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/grafo6379.39.lp
Reading time = 0.14 seconds
: 86715 rows, 2126 columns, 261948 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 86715 rows, 2126 columns and 261948 nonzeros
Model fingerprint: 0xb8e3490e
Variable types: 46 continuous, 2080 integer (2080 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 22203 rows and 22 columns
Presolve time: 0.55s
Presolved: 64512 rows, 2104 columns, 195757 nonzeros
Variable types: 0 continuous, 2104 integer (2058 binary)
Root relaxation presolved: 2101 rows, 66613 columns, 197861 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   26938    4.8791546e+01   0.000000e+00   4.075364e+03      5s
   33987    4.9000000e+01   0.000000e+00   0.000000e+00      6s
   33987    4.9000000e+01   0.000000e+00   0.000000e+00      6s
   33987    4.9000000e+01   0.000000e+00   0.000000e+00      6s

Root relaxation: objective 4.900000e+01, 33987 iterations, 5.68 seconds (4.88 work units)
Total elapsed time = 15.34s (DegenMoves)

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

     0     0   49.00000    0  606          -   49.00000      -     -   16s
H    0     0                       4.0000000   49.00000  1125%     -   20s
H    0     0                       5.0000000   49.00000   880%     -   32s
H    0     0                       8.0000000   49.00000   513%     -   32s
     0     0   49.00000    0  853    8.00000   49.00000   513%     -   32s
H    0     0                       9.0000000   49.00000   444%     -   33s
     0     0   49.00000    0  769    9.00000   49.00000   444%     -   37s
     0     0   49.00000    0  861    9.00000   49.00000   444%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 19
  Clique: 21
  MIR: 159
  StrongCG: 1
  Zero half: 102
  RLT: 60
  BQP: 3

Explored 1 nodes (62645 simplex iterations) in 50.08 seconds (43.38 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 5 4 

Time limit reached
Best objective 9.000000000000e+00, best bound 4.900000000000e+01, gap 444.4444%

Wrote result file './lp_solutions/grafo6379.39.sol'

