
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 25 03:45:11 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo11478.39.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/grafo11478.39.lp
Reading time = 0.17 seconds
: 107235 rows, 2392 columns, 323886 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 107235 rows, 2392 columns and 323886 nonzeros
Model fingerprint: 0x9625a4d8
Variable types: 50 continuous, 2342 integer (2342 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 28299 rows and 30 columns
Presolve time: 0.76s
Presolved: 78936 rows, 2362 columns, 239479 nonzeros
Variable types: 0 continuous, 2362 integer (2312 binary)
Root relaxation presolved: 2362 rows, 81298 columns, 241841 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   21685    5.3687084e+01   0.000000e+00   7.648857e+05      5s
   45292    5.3662933e+01   0.000000e+00   9.551852e+03     10s
   53395    5.4000000e+01   0.000000e+00   0.000000e+00     12s
   53395    5.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 5.400000e+01, 53395 iterations, 10.86 seconds (9.44 work units)
Total elapsed time = 23.33s (DegenMoves)
Total elapsed time = 26.01s (DegenMoves)

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

     0     0   54.00000    0  576          -   54.00000      -     -   26s
H    0     0                       3.0000000   54.00000  1700%     -   29s
     0     0   54.00000    0  774    3.00000   54.00000  1700%     -   40s
H    0     0                      11.0000000   54.00000   391%     -   41s
     0     0   54.00000    0  752   11.00000   54.00000   391%     -   43s
     0     0          -    0        11.00000   54.00000   391%     -   50s

Cutting planes:
  Lift-and-project: 34
  Cover: 7
  Clique: 9
  MIR: 97
  GUB cover: 3
  Zero half: 33
  RLT: 59

Explored 1 nodes (79275 simplex iterations) in 50.02 seconds (50.14 work units)
Thread count was 8 (of 8 available processors)

Solution count 2: 11 3 

Time limit reached
Best objective 1.100000000000e+01, best bound 5.400000000000e+01, gap 390.9091%

Wrote result file './lp_solutions/grafo11478.39.sol'

