
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:42:20 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1914.28.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/grafo1914.28.lp
Reading time = 0.14 seconds
: 60014 rows, 1156 columns, 180896 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 60014 rows, 1156 columns and 180896 nonzeros
Model fingerprint: 0xc94306a9
Variable types: 33 continuous, 1123 integer (1123 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 23692 rows and 21 columns
Presolve time: 0.54s
Presolved: 36322 rows, 1135 columns, 110121 nonzeros
Variable types: 0 continuous, 1135 integer (1102 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 1135 rows, 37457 columns, 111256 nonzeros


Root relaxation: objective 3.000000e+01, 1583 iterations, 0.36 seconds (0.31 work units)
Total elapsed time = 8.64s (DegenMoves)

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

     0     0   30.00000    0  320    3.00000   30.00000   900%     -   10s
H    0     0                       7.0000000   30.00000   329%     -   10s
H    0     0                       8.0000000   30.00000   275%     -   12s
     0     0   30.00000    0  544    8.00000   30.00000   275%     -   18s
     0     0   30.00000    0  542    8.00000   30.00000   275%     -   18s
H    0     0                       9.0000000   30.00000   233%     -   39s
     0     0   30.00000    0  245    9.00000   30.00000   233%     -   40s
     0     0   30.00000    0  250    9.00000   30.00000   233%     -   40s
     0     0   30.00000    0  372    9.00000   30.00000   233%     -   50s

Cutting planes:
  Cover: 34
  Clique: 19
  MIR: 91
  StrongCG: 2
  GUB cover: 7
  Zero half: 34
  RLT: 48

Explored 1 nodes (47258 simplex iterations) in 50.04 seconds (39.50 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 9 8 7 3 

Time limit reached
Best objective 9.000000000000e+00, best bound 3.000000000000e+01, gap 233.3333%

Wrote result file './lp_solutions/grafo1914.28.sol'

