// Author: Christian Schilling (schillic@informatik.uni-freiburg.de)
// Date: 2017-02-09
// 
// Reduced form of ReduceNwaDirectSimulation_BreathlessWolf01.ats
// This example showed that MinimizeDfaSimulation and ReduceNwaDirectSimulationB
// do not have the same result for finite automata. In particular, there are no
// accepting states in the automaton.

NestedWordAutomaton preprocessed = removeUnreachable(nwa);

int minimizeSevpaSize = numberOfStates(minimizeSevpa(preprocessed));
int shrinkNwaSize = numberOfStates(shrinkNwa(preprocessed));
int minimizeNwaPmaxSatDirectBiSize = numberOfStates(minimizeNwaPmaxSatDirectBi(preprocessed));
int minimizeNwaPmaxSatDirectSize = numberOfStates(minimizeNwaPmaxSatDirect(preprocessed));
int minimizeDfaSimulationSize = numberOfStates(minimizeDfaSimulation(preprocessed));
int reduceNwaDirectSimulationSize = numberOfStates(reduceNwaDirectSimulation(preprocessed));
int reduceNwaDirectSimulationBSize = numberOfStates(reduceNwaDirectSimulationB(preprocessed));
int reduceNwaDirectFullMultipebbleSimulationSize = numberOfStates(reduceNwaDirectFullMultipebbleSimulation(preprocessed));
int buchiReduceSize = numberOfStates(buchiReduce(preprocessed));
int reduceNwaDelayedSimulationSize = numberOfStates(reduceNwaDelayedSimulation(preprocessed));
int reduceNwaDelayedSimulationBSize = numberOfStates(reduceNwaDelayedSimulationB(preprocessed));
// int reduceNwaDelayedFullMultipebbleSimulationSize = numberOfStates(reduceNwaDelayedFullMultipebbleSimulation(preprocessed));
int reduceBuchiFairDirectSimulationSize = numberOfStates(reduceBuchiFairDirectSimulation(preprocessed));
int reduceBuchiFairSimulationSize = numberOfStates(reduceBuchiFairSimulation(preprocessed));

assert(minimizeSevpaSize == 2);
assert(shrinkNwaSize == 2);
assert(minimizeNwaPmaxSatDirectBiSize == 2);
assert(minimizeNwaPmaxSatDirectSize == 2);
assert(minimizeDfaSimulationSize == 3);
assert(reduceNwaDirectSimulationSize == 2);
assert(reduceNwaDirectSimulationBSize == 2);
assert(reduceNwaDirectFullMultipebbleSimulationSize == 2);
assert(buchiReduceSize == 2);
assert(reduceNwaDelayedSimulationSize == 2);
assert(reduceNwaDelayedSimulationBSize == 2);
// assert(reduceNwaDelayedFullMultipebbleSimulationSize == 2);
assert(reduceBuchiFairDirectSimulationSize == 2);
assert(reduceBuchiFairSimulationSize == 2);

NestedWordAutomaton nwa = (
	alphabet = {a b},
	states = {q0 q1 q2},
	initialStates = {q0},
	finalStates = {},
	transitions = {
		(q0 a q1)
		(q0 b q2)
		(q1 a q1)
		(q1 b q2)
	}
);