
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:38:07 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7032.41.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/grafo7032.41.lp
Reading time = 0.18 seconds
: 114598 rows, 2240 columns, 345634 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 114598 rows, 2240 columns and 345634 nonzeros
Model fingerprint: 0xd4cb218a
Variable types: 46 continuous, 2194 integer (2194 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 37698 rows and 25 columns
Presolve time: 0.84s
Presolved: 76900 rows, 2215 columns, 232969 nonzeros
Variable types: 0 continuous, 2215 integer (2169 binary)
Root relaxation presolved: 2212 rows, 79112 columns, 235184 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24658    4.9960147e+01   0.000000e+00   2.022972e+04      5s
   48875    4.9949654e+01   0.000000e+00   9.696536e+02     10s
   55317    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   55317    5.0000000e+01   0.000000e+00   0.000000e+00     11s
   55317    5.0000000e+01   0.000000e+00   0.000000e+00     11s

Root relaxation: objective 5.000000e+01, 55317 iterations, 10.46 seconds (9.31 work units)
Total elapsed time = 24.14s (DegenMoves)
Total elapsed time = 27.04s (DegenMoves)

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

     0     0   50.00000    0  439          -   50.00000      -     -   28s
H    0     0                       4.0000000   50.00000  1150%     -   29s
     0     0   50.00000    0  840    4.00000   50.00000  1150%     -   40s
H    0     0                       6.0000000   50.00000   733%     -   41s
     0     0   50.00000    0  799    6.00000   50.00000   733%     -   41s
     0     0          -    0         6.00000   50.00000   733%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 41
  Cover: 15
  Clique: 25
  MIR: 120
  StrongCG: 1
  GUB cover: 2
  Zero half: 19
  RLT: 57
  BQP: 6

Explored 1 nodes (82689 simplex iterations) in 50.03 seconds (52.32 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 6 4 

Time limit reached
Best objective 6.000000000000e+00, best bound 5.000000000000e+01, gap 733.3333%

Wrote result file './lp_solutions/grafo7032.41.sol'

