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bugfix for F and G encodings -- missing element for i=k

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Artur Meski
2017-03-12 12:50:09 +01:00
parent fab7880ccf
commit 20464ac6dd
4 changed files with 82 additions and 35 deletions
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22
smt/smt_checker_rsc.py
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@@ -376,7 +376,7 @@ class SmtCheckerRSC(object):
self.prepare_all_variables()
self.solver.add(self.enc_init_state(0))
current_level = 0
self.current_level = 0
self.prepare_all_variables()
@@ -386,34 +386,36 @@ class SmtCheckerRSC(object):
while True:
self.prepare_all_variables()
self.solver.add(self.enc_concentration_levels_assertion(current_level+1))
self.solver.add(self.enc_concentration_levels_assertion(self.current_level+1))
print("\n{:-^70}".format("[ Working at level=" + str(current_level) + " ]"))
print("\n{:-^70}".format("[ Working at level=" + str(self.current_level) + " ]"))
stdout.flush()
# reachability test:
print("[" + colour_str(C_BOLD, "i") + "] Adding the reachability test...")
self.solver.push()
self.solver.add(encoder.encode(formula, 0, current_level))
f = encoder.encode(formula, 0, self.current_level)
self.solver.add(f)
self.solver.add(self.get_loop_encodings())
result = self.solver.check()
if result == sat:
print("[" + colour_str(C_BOLD, "+") + "] " + colour_str(C_GREEN, "SAT at level=" + str(current_level)))
print("[" + colour_str(C_BOLD, "+") + "] " + colour_str(C_GREEN, "SAT at level=" + str(self.current_level)))
if print_witness:
print("\n{:=^70}".format("[ WITNESS ]"))
self.decode_witness(current_level)
self.decode_witness(self.current_level)
break
else:
self.solver.pop()
print("[" + colour_str(C_BOLD, "i") + "] Unrolling the transition relation")
self.solver.add(self.enc_transition_relation(current_level))
self.solver.add(self.enc_transition_relation(self.current_level))
print("{:->70}".format("[ level=" + str(current_level) + " done ]"))
current_level += 1
print("{:->70}".format("[ level=" + str(self.current_level) + " done ]"))
self.current_level += 1
if not max_level is None and current_level > max_level:
if not max_level is None and self.current_level > max_level:
print("Stopping at level=" + str(max_level))
break