Line | |
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1 | function used = getvariables(F) |
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2 | |
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3 | used = recursivegetvariables(F,1,length(F.clauses)); |
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4 | return |
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5 | |
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6 | m = length(F.clauses); |
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7 | if m == 1 |
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8 | used = getvariables(F.clauses{1}.data); |
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9 | else |
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10 | if m>50 |
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11 | for i = 1:m |
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12 | Fivars = getvariables(F.clauses{i}.data); |
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13 | used = [used Fivars(:)']; |
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14 | end |
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15 | used = uniquestripped(used); |
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16 | else |
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17 | for i = 1:m |
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18 | Fivars = getvariables(F.clauses{i}.data); |
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19 | used = uniquestripped([used Fivars(:)']); |
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20 | end |
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21 | end |
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22 | end |
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23 | |
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24 | |
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25 | function used = recursivegetvariables(F,startindex,endindex) |
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26 | |
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27 | if endindex-startindex>50 |
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28 | newstart = startindex; |
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29 | mid = ceil((startindex + endindex)/2); |
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30 | newend = endindex; |
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31 | used1 = recursivegetvariables(F,newstart,mid); |
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32 | used2 = recursivegetvariables(F,mid+1,newend); |
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33 | used = uniquestripped([used1 used2]); |
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34 | else |
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35 | used = []; |
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36 | for i = startindex:endindex |
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37 | Fivars = getvariables(F.clauses{i}.data); |
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38 | used = [used Fivars(:)']; |
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39 | end |
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40 | used = uniquestripped(used); |
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41 | end |
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