c This Formular is generated by mcnf
c
c    horn? no 
c    forced? no 
c    mixed sat? no 
c    clause length = 3 
c
p cnf 20  91 
 5 -10 -15 0
-5 -1 10 0
16 2 20 0
-4 -15 -17 0
7 8 -4 0
6 15 14 0
-15 11 18 0
6 -9 18 0
8 -17 -1 0
18 -17 5 0
-1 -4 -5 0
-2 -8 -5 0
-2 4 -1 0
5 17 -9 0
3 -18 -16 0
17 -1 -18 0
-15 -17 -19 0
-11 -17 20 0
-4 1 5 0
12 -8 3 0
-2 -12 -3 0
11 7 14 0
6 17 5 0
-14 11 1 0
4 16 15 0
-10 4 -20 0
9 13 19 0
-11 -8 1 0
-16 7 19 0
-3 -9 -17 0
6 -5 4 0
-18 6 19 0
-20 -18 8 0
-8 6 4 0
-2 5 4 0
-2 -7 -15 0
-3 -12 8 0
8 1 15 0
-13 1 -8 0
-3 20 16 0
-7 18 16 0
-7 -11 -20 0
-2 20 1 0
18 -1 -10 0
-18 -1 -12 0
-16 -19 10 0
-18 -3 -1 0
-17 -18 19 0
-6 -12 7 0
7 -14 18 0
-2 -17 19 0
10 -16 9 0
-3 10 -7 0
-4 -15 19 0
6 -5 10 0
12 13 -5 0
19 -14 13 0
15 3 -14 0
-14 5 13 0
-16 -9 -6 0
-3 -12 -18 0
-11 10 -8 0
-12 6 13 0
-18 -16 1 0
7 -19 20 0
-18 9 15 0
3 -11 13 0
-9 -7 -17 0
7 11 15 0
-13 -1 3 0
16 1 19 0
12 -16 -6 0
-8 -7 -5 0
4 -9 -14 0
-1 13 19 0
14 6 2 0
-14 6 -11 0
5 9 -17 0
9 -10 -5 0
-19 -20 -10 0
-1 -13 2 0
8 -16 18 0
-10 -7 6 0
8 3 6 0
9 -2 12 0
6 12 -7 0
-15 12 13 0
9 17 6 0
-16 -13 -6 0
-16 -7 20 0
-7 -20 14 0
%
0