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