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Handle "always 1" like "always -1" in .smtc files

This commit is contained in:
Clifford Wolf 2017-01-02 20:02:52 +01:00
parent f0df7dd796
commit 81bb952e5d
1 changed files with 5 additions and 7 deletions
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12
backends/smt2/smtbmc.py
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@ -201,10 +201,9 @@ for fn in inconstr:
current_states = set(["final-%d" % i for i in range(0, num_steps+1)])
constr_final_start = 0
elif len(tokens) == 2:
i = int(tokens[1])
assert i < 0
current_states = set(["final-%d" % i for i in range(-i, num_steps+1)])
constr_final_start = -i if constr_final_start is None else min(constr_final_start, -i)
arg = abs(int(tokens[1]))
current_states = set(["final-%d" % i for i in range(arg, num_steps+1)])
constr_final_start = arg if constr_final_start is None else min(constr_final_start, arg)
else:
assert False
continue
@ -232,9 +231,8 @@ for fn in inconstr:
if len(tokens) == 1:
current_states = set(range(0, num_steps+1))
elif len(tokens) == 2:
i = int(tokens[1])
assert i < 0
current_states = set(range(-i, num_steps+1))
arg = abs(int(tokens[1]))
current_states = set(range(arg, num_steps+1))
else:
assert False
continue