
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 20:18:43 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo3587.36.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/grafo3587.36.lp
Reading time = 0.17 seconds
: 95180 rows, 1937 columns, 287189 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 95180 rows, 1937 columns and 287189 nonzeros
Model fingerprint: 0x565ff16b
Variable types: 44 continuous, 1893 integer (1893 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 31031 rows and 21 columns
Presolve time: 0.72s
Presolved: 64149 rows, 1916 columns, 194485 nonzeros
Variable types: 0 continuous, 1916 integer (1872 binary)
Found heuristic solution: objective 5.0000000
Root relaxation presolved: 1916 rows, 66065 columns, 196401 nonzeros


Root relaxation: objective 4.900000e+01, 2478 iterations, 0.62 seconds (0.71 work units)
Total elapsed time = 6.42s (DegenMoves)
Total elapsed time = 10.32s (DegenMoves)

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

     0     0   49.00000    0  540    5.00000   49.00000   880%     -   10s
H    0     0                       6.0000000   49.00000   717%     -   10s
H    0     0                       8.0000000   49.00000   512%     -   11s
     0     0   49.00000    0  785    8.00000   49.00000   512%     -   25s
H    0     0                       9.0000000   49.00000   444%     -   25s
     0     0   49.00000    0  748    9.00000   49.00000   444%     -   27s
     0     0   49.00000    0  833    9.00000   49.00000   444%     -   50s

Cutting planes:
  Gomory: 3
  Lift-and-project: 26
  Cover: 6
  Clique: 19
  MIR: 114
  GUB cover: 1
  Zero half: 31
  RLT: 57
  BQP: 2

Explored 1 nodes (35585 simplex iterations) in 50.06 seconds (43.77 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 6 5 

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

Wrote result file './lp_solutions/grafo3587.36.sol'

