
Gurobi 11.0.1 (mac64[x86], gurobi_cl) logging started Tue Nov 19 06:54:24 2024

Set parameter Username
Set parameter TimeLimit to value 50
Set parameter LogFile to value "./lp_solutions/grafo5591.38.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/grafo5591.38.lp
Reading time = 0.22 seconds
: 137507 rows, 1948 columns, 414105 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 137507 rows, 1948 columns and 414105 nonzeros
Model fingerprint: 0x818ee2a8
Variable types: 42 continuous, 1906 integer (1906 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 59400 rows and 29 columns
Presolve time: 1.01s
Presolved: 78107 rows, 1919 columns, 236395 nonzeros
Variable types: 0 continuous, 1919 integer (1877 binary)
Root relaxation presolved: 1919 rows, 80026 columns, 238314 nonzeros


Root relaxation: objective 4.000000e+01, 2275 iterations, 0.69 seconds (0.83 work units)
Total elapsed time = 7.91s (DegenMoves)
Total elapsed time = 10.81s (DegenMoves)

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

     0     0   40.00000    0  414          -   40.00000      -     -   12s
H    0     0                       5.0000000   40.00000   700%     -   14s
     0     0   40.00000    0  732    5.00000   40.00000   700%     -   22s
H    0     0                      10.0000000   40.00000   300%     -   23s
H    0     0                      12.0000000   40.00000   233%     -   23s
     0     0   40.00000    0  690   12.00000   40.00000   233%     -   23s
     0     0   40.00000    0  363   12.00000   40.00000   233%     -   39s
H    0     0                      14.0000000   40.00000   186%     -   39s
     0     0   40.00000    0  360   14.00000   40.00000   186%     -   39s
     0     0   40.00000    0  643   14.00000   40.00000   186%     -   50s

Cutting planes:
  Cover: 31
  Clique: 13
  MIR: 99
  StrongCG: 1
  GUB cover: 2
  Zero half: 52
  RLT: 55
  BQP: 2

Explored 1 nodes (39743 simplex iterations) in 50.03 seconds (55.42 work units)
Thread count was 8 (of 8 available processors)

Solution count 4: 14 12 10 5 

Time limit reached
Best objective 1.400000000000e+01, best bound 4.000000000000e+01, gap 185.7143%

Wrote result file './lp_solutions/grafo5591.38.sol'

