[validation] add WCNF problems generated by Tobias Paxian fuzzing approach

validation/toulbar2_17_red-bugPaxian-10230070383276898948.ub

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validation/toulbar2_17_red-bugPaxian-10521581358839693573.ub

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validation/toulbar2_17_red-bugPaxian-13625162799615217940.ub

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validation/toulbar2_17_red-bugPaxian-13965480242461223845.ub

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validation/toulbar2_17_red-bugPaxian-14165655486221351815.ub

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validation/toulbar2_17_red-bugPaxian-17425338286723490179.ub

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validation/toulbar2_17_red-bugPaxian-4238884927852940193.ub

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validation/toulbar2_17_red-bugPaxian-6551104024395343438.ub

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validation/toulbar2_17_red-bugPaxian-691051791939924793.ub

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validation/toulbar2_17_red-bugPaxian-9195086905819846893.ub

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