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