
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 26 01:22:57 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5344.41.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/grafo5344.41.lp
Reading time = 0.19 seconds
: 97602 rows, 2353 columns, 294888 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 97602 rows, 2353 columns and 294888 nonzeros
Model fingerprint: 0x7df6a59c
Variable types: 48 continuous, 2305 integer (2305 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 33252 rows and 101 columns
Presolve time: 0.71s
Presolved: 64350 rows, 2252 columns, 195509 nonzeros
Variable types: 0 continuous, 2252 integer (2204 binary)
Found heuristic solution: objective 9.0000000
Root relaxation presolved: 2249 rows, 66599 columns, 197761 nonzeros


Root simplex log...

Iteration    Objective       Primal Inf.    Dual Inf.      Time
   20333    4.3956699e+01   0.000000e+00   7.472294e+04      5s
   39638    4.3950795e+01   0.000000e+00   9.908535e+02     10s
   45162    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   45162    4.4000000e+01   0.000000e+00   0.000000e+00     12s
   45162    4.4000000e+01   0.000000e+00   0.000000e+00     12s

Root relaxation: objective 4.400000e+01, 45162 iterations, 10.67 seconds (6.74 work units)
Total elapsed time = 23.44s (DegenMoves)
Total elapsed time = 25.36s (DegenMoves)

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

     0     0   44.00000    0  607    9.00000   44.00000   389%     -   26s
H    0     0                      10.0000000   44.00000   340%     -   26s
     0     0   44.00000    0  803   10.00000   44.00000   340%     -   42s
H    0     0                      11.0000000   44.00000   300%     -   43s
     0     0   44.00000    0  767   11.00000   44.00000   300%     -   44s

Cutting planes:
  Gomory: 2
  Lift-and-project: 39
  Cover: 18
  Clique: 4
  MIR: 106
  StrongCG: 1
  GUB cover: 1
  Zero half: 29
  RLT: 63
  BQP: 3

Explored 1 nodes (66022 simplex iterations) in 50.19 seconds (32.93 work units)
Thread count was 8 (of 8 available processors)

Solution count 3: 11 10 9 

Time limit reached
Best objective 1.100000000000e+01, best bound 4.400000000000e+01, gap 300.0000%

Wrote result file './lp_solutions/grafo5344.41.sol'

