graph1_4.cnf

p cnf 28 97
-8 -28 0
-7 -27 0
-6 -26 0
-5 -25 0
-16 -24 0
-15 -23 0
-14 -22 0
-13 -21 0
-12 -28 0
-11 -27 0
-10 -26 0
-9 -25 0
-4 -20 0
-3 -19 0
-2 -18 0
-1 -17 0
-4 -24 0
-3 -23 0
-2 -22 0
-1 -21 0
-4 -28 0
-3 -27 0
-2 -26 0
-1 -25 0
-24 -28 0
-23 -27 0
-22 -26 0
-21 -25 0
-20 -24 0
-19 -23 0
-18 -22 0
-17 -21 0
-16 -20 0
-15 -19 0
-14 -18 0
-13 -17 0
-12 -16 0
-11 -15 0
-10 -14 0
-9 -13 0
-8 -12 0
-7 -11 0
-6 -10 0
-5 -9 0
-4 -8 0
-3 -7 0
-2 -6 0
-1 -5 0
25 26 27 28 0
-25 -26 0
-25 -27 0
-25 -28 0
-26 -27 0
-26 -28 0
-27 -28 0
21 22 23 24 0
-21 -22 0
-21 -23 0
-21 -24 0
-22 -23 0
-22 -24 0
-23 -24 0
17 18 19 20 0
-17 -18 0
-17 -19 0
-17 -20 0
-18 -19 0
-18 -20 0
-19 -20 0
13 14 15 16 0
-13 -14 0
-13 -15 0
-13 -16 0
-14 -15 0
-14 -16 0
-15 -16 0
9 10 11 12 0
-9 -10 0
-9 -11 0
-9 -12 0
-10 -11 0
-10 -12 0
-11 -12 0
5 6 7 8 0
-5 -6 0
-5 -7 0
-5 -8 0
-6 -7 0
-6 -8 0
-7 -8 0
1 2 3 4 0
-1 -2 0
-1 -3 0
-1 -4 0
-2 -3 0
-2 -4 0
-3 -4 0