
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Mon Nov 18 17:20:13 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo1746.27.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/grafo1746.27.lp
Reading time = 0.22 seconds
: 88927 rows, 1169 columns, 267667 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 88927 rows, 1169 columns and 267667 nonzeros
Model fingerprint: 0x879921b8
Variable types: 33 continuous, 1136 integer (1136 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]
Found heuristic solution: objective -0.0000000
Presolve removed 40162 rows and 18 columns
Presolve time: 0.94s
Presolved: 48765 rows, 1151 columns, 147405 nonzeros
Variable types: 0 continuous, 1151 integer (1118 binary)
Found heuristic solution: objective 3.0000000
Root relaxation presolved: 1151 rows, 49916 columns, 148556 nonzeros


Root relaxation: objective 3.600000e+01, 2305 iterations, 1.02 seconds (0.96 work units)
Total elapsed time = 8.33s (DegenMoves)
Total elapsed time = 19.25s (DegenMoves)
Total elapsed time = 21.27s (DegenMoves)

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

     0     0   36.00000    0  410    3.00000   36.00000  1100%     -   24s
H    0     0                       4.0000000   36.00000   800%     -   24s
H    0     0                       5.0000000   36.00000   620%     -   26s
     0     0   36.00000    0  548    5.00000   36.00000   620%     -   32s
     0     0   36.00000    0  528    5.00000   36.00000   620%     -   33s
     0     0   36.00000    0  451    5.00000   36.00000   620%     -   50s

Cutting planes:
  Gomory: 5
  Cover: 17
  Clique: 30
  MIR: 110
  Zero half: 118
  RLT: 67
  Relax-and-lift: 1
  BQP: 4

Explored 1 nodes (35111 simplex iterations) in 50.08 seconds (43.74 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 5 4 3 -0 

Time limit reached
Best objective 5.000000000000e+00, best bound 3.600000000000e+01, gap 620.0000%

Wrote result file './lp_solutions/grafo1746.27.sol'

