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182 lines
4.8 KiB
INI
182 lines
4.8 KiB
INI
c File: pret60_60.cnf
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c
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c SOURCE: Daniel Pretolani (daniele@crt.umontreal.ca)
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c
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c DESCRIPTION: Unsatisfiable instances of a graph 2-coloring with
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c parity constraints.
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c
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c ----------- DIMACS Challenge - CNF format -----------
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c
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c TRISAT Generator (Pretolani 1990)
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c
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c (Even) number of nodes ==> 40
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c Charge ( 0 = sat. / 1 = unsat. ) ==> 1
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c Horn Percentage (min -> 25; max -> 75) ==> 60
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c Number of Propositional variables ==> 60
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c Number of Clauses ==> 160
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c Nodes with Charge = 1 ==> 29
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c Horn Percentage (exact) ==> 57.000
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c
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c -----------------------------------------------------
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p cnf 60 160
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-3 -2 -1 0
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3 2 -1 0
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2 1 -3 0
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3 1 -2 0
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-6 -5 -4 0
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6 5 -4 0
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5 4 -6 0
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6 4 -5 0
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-9 -8 -7 0
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9 8 -7 0
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8 7 -9 0
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9 7 -8 0
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-12 -11 -10 0
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12 11 -10 0
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11 10 -12 0
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12 10 -11 0
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-15 -14 -13 0
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15 14 -13 0
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14 13 -15 0
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15 13 -14 0
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-18 -17 -16 0
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18 17 -16 0
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17 16 -18 0
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18 16 -17 0
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-21 -20 -19 0
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21 20 -19 0
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20 19 -21 0
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21 19 -20 0
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-24 -23 -22 0
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24 23 -22 0
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23 22 -24 0
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24 22 -23 0
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-27 -26 -25 0
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27 26 -25 0
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26 25 -27 0
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27 25 -26 0
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-30 -29 -28 0
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30 29 -28 0
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29 28 -30 0
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30 28 -29 0
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-33 -32 -31 0
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33 32 -31 0
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32 31 -33 0
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33 31 -32 0
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36 35 34 0
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36 -35 -34 0
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35 -36 -34 0
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34 -36 -35 0
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39 38 37 0
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39 -38 -37 0
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38 -39 -37 0
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37 -39 -38 0
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40 37 16 0
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40 -37 -16 0
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37 -40 -16 0
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16 -40 -37 0
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42 41 15 0
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42 -41 -15 0
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41 -42 -15 0
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15 -42 -41 0
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43 41 14 0
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43 -41 -14 0
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41 -43 -14 0
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14 -43 -41 0
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44 18 10 0
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44 -18 -10 0
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18 -44 -10 0
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10 -44 -18 0
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44 17 13 0
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44 -17 -13 0
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17 -44 -13 0
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13 -44 -17 0
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46 45 6 0
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46 -45 -6 0
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45 -46 -6 0
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6 -46 -45 0
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45 22 5 0
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45 -22 -5 0
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22 -45 -5 0
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5 -45 -22 0
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48 47 21 0
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48 -47 -21 0
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47 -48 -21 0
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21 -48 -47 0
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47 46 20 0
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47 -46 -20 0
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46 -47 -20 0
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20 -47 -46 0
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49 24 1 0
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49 -24 -1 0
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24 -49 -1 0
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1 -49 -24 0
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49 23 19 0
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49 -23 -19 0
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23 -49 -19 0
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19 -49 -23 0
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51 50 9 0
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51 -50 -9 0
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50 -51 -9 0
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9 -51 -50 0
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50 28 8 0
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50 -28 -8 0
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28 -50 -8 0
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8 -50 -28 0
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52 42 27 0
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52 -42 -27 0
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42 -52 -27 0
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27 -52 -42 0
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52 51 26 0
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52 -51 -26 0
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51 -52 -26 0
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26 -52 -51 0
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53 30 4 0
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53 -30 -4 0
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30 -53 -4 0
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4 -53 -30 0
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53 29 25 0
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53 -29 -25 0
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29 -53 -25 0
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25 -53 -29 0
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55 54 12 0
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55 -54 -12 0
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54 -55 -12 0
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12 -55 -54 0
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54 34 11 0
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54 -34 -11 0
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34 -54 -11 0
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11 -54 -34 0
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56 48 33 0
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56 -48 -33 0
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48 -56 -33 0
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33 -56 -48 0
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56 55 32 0
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56 -55 -32 0
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55 -56 -32 0
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32 -56 -55 0
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57 36 7 0
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57 -36 -7 0
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36 -57 -7 0
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7 -57 -36 0
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57 35 31 0
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57 -35 -31 0
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35 -57 -31 0
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31 -57 -35 0
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59 58 3 0
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59 -58 -3 0
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58 -59 -3 0
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3 -59 -58 0
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58 40 2 0
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58 -40 -2 0
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40 -58 -2 0
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2 -58 -40 0
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60 43 39 0
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60 -43 -39 0
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43 -60 -39 0
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39 -60 -43 0
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60 59 38 0
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60 -59 -38 0
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59 -60 -38 0
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38 -60 -59 0
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