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41 lines
663 B
Lua
Executable file
41 lines
663 B
Lua
Executable file
#!/usr/bin/env lua
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header = [[
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(set-logic QF_UFDT)
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(declare-datatypes ((t 0))
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(((T0) (T1 (prev1 t)) (T2 (prev2 t)))))
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]]
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footer = [[
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(check-sat)
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(exit)
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]]
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function printf(...)
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print(string.format(...))
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end
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function mkdiamond(n)
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-- decls
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for i=1,n do
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printf("(declare-const c%d t)", i)
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end
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printf("(assert (= c1 c%d))", n)
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-- now for the diamond itself
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for i=1,n do
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printf("(assert (not (= c%d T0)))",i)
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end
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for i=1, n-1 do
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local s = "c" .. i
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local next_ = "c" .. (i+1)
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printf("(assert (or (= %s (T1 %s)) (= %s (T2 %s))))", s, next_, s, next_)
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end
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end
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n = tonumber(arg[1])
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print(header)
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mkdiamond(n)
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print(footer)
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