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 
 7 -2 15 0
-16 -6 -3 0
-15 -2 10 0
-7 -15 -6 0
6 4 -2 0
-19 12 -18 0
2 -16 -18 0
16 6 -13 0
16 7 5 0
-18 13 4 0
-16 -20 1 0
6 -13 17 0
-14 -13 -6 0
13 1 -14 0
20 -5 11 0
-20 -15 19 0
-4 -12 -7 0
-13 12 -5 0
-4 -5 1 0
-8 -11 -6 0
3 11 15 0
5 -1 11 0
17 -11 -14 0
10 -1 -14 0
-14 -3 1 0
-13 4 15 0
19 -10 5 0
-19 -10 14 0
-6 -7 10 0
-15 -7 -4 0
15 10 2 0
-13 -2 16 0
-20 10 -19 0
3 -8 -12 0
-1 -2 -17 0
-11 -7 16 0
12 18 9 0
-12 5 2 0
1 -3 17 0
8 -19 6 0
-14 -4 -16 0
-4 6 15 0
-20 6 2 0
-13 9 -2 0
7 5 -17 0
-4 -13 -16 0
2 5 -11 0
9 -12 -13 0
-13 -6 -1 0
19 -16 8 0
12 -19 18 0
-6 17 -13 0
8 -15 10 0
-19 -7 12 0
10 -17 18 0
16 11 20 0
9 4 -20 0
-13 -4 -8 0
11 5 -10 0
19 -4 -16 0
19 -7 17 0
-10 17 4 0
-7 9 10 0
-10 -11 -8 0
-18 -12 -14 0
-14 -20 -8 0
-5 -9 -15 0
6 2 -5 0
-19 16 -14 0
-3 -7 -4 0
11 -19 -2 0
9 -19 8 0
-13 14 -11 0
12 -1 15 0
-16 10 -19 0
3 -7 16 0
17 16 -4 0
2 12 14 0
-4 5 10 0
12 18 -4 0
-7 13 -12 0
-10 -6 -16 0
10 -14 -8 0
-8 -1 3 0
2 -9 -8 0
-2 -18 -6 0
13 -2 -20 0
6 5 -14 0
-16 4 14 0
-14 9 10 0
-20 18 9 0
%
0