
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 06:49:02 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo7638.41.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/grafo7638.41.lp
Reading time = 0.14 seconds
: 87503 rows, 2363 columns, 264592 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 87503 rows, 2363 columns and 264592 nonzeros
Model fingerprint: 0x1ad365b8
Variable types: 49 continuous, 2314 integer (2314 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 17364 rows and 29 columns
Presolve time: 0.60s
Presolved: 70139 rows, 2334 columns, 213013 nonzeros
Variable types: 0 continuous, 2334 integer (2285 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 2331 rows, 72470 columns, 215347 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   24416    4.4919965e+01   0.000000e+00   1.170601e+04      5s
   41920    4.5000000e+01   0.000000e+00   0.000000e+00      9s
   41920    4.5000000e+01   0.000000e+00   0.000000e+00      9s
   41920    4.5000000e+01   0.000000e+00   0.000000e+00      9s

Root relaxation: objective 4.500000e+01, 41920 iterations, 7.97 seconds (6.63 work units)
Total elapsed time = 22.63s (DegenMoves)
Total elapsed time = 25.32s (DegenMoves)

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

     0     0   45.00000    0  614    5.00000   45.00000   800%     -   25s
H    0     0                       8.0000000   45.00000   462%     -   26s
H    0     0                       9.0000000   45.00000   400%     -   26s
H    0     0                      10.0000000   45.00000   350%     -   29s
     0     0   45.00000    0  752   10.00000   45.00000   350%     -   38s
     0     0   45.00000    0  777   10.00000   45.00000   350%     -   40s
H    0     0                      11.0000000   45.00000   309%     -   45s
     0     0          -    0        11.00000   45.00000   309%     -   50s

Cutting planes:
  Gomory: 4
  Lift-and-project: 36
  Cover: 7
  Clique: 10
  MIR: 106
  StrongCG: 1
  GUB cover: 1
  Zero half: 33
  RLT: 41
  BQP: 1

Explored 1 nodes (69614 simplex iterations) in 50.09 seconds (45.08 work units)
Thread count was 8 (of 8 available processors)

Solution count 5: 11 10 9 ... 5

Time limit reached
Best objective 1.100000000000e+01, best bound 4.500000000000e+01, gap 309.0909%

Wrote result file './lp_solutions/grafo7638.41.sol'

