def test_delta():
parser = LDLfParser()
sa, sb, sc = "A", "B", "C"
a, b, c = PLAtomic(sa), PLAtomic(sb), PLAtomic(sc)
i_ = PLFalseInterpretation()
i_a = PLInterpretation({sa})
i_b = PLInterpretation({sb})
i_ab = PLInterpretation({sa, sb})
true = PLTrue()
false = PLFalse()
tt = LDLfLogicalTrue()
ff = LDLfLogicalFalse()
assert parser("<A>tt").delta(i_) == false
assert parser("<A>tt").delta(i_a) == PLAtomic(tt)
assert parser("<A>tt").delta(i_b) == false
assert parser("<A>tt").delta(i_ab) == PLAtomic(tt)
assert parser("[B]ff").delta(i_) == true
assert parser("[B]ff").delta(i_a) == true
assert parser("[B]ff").delta(i_b) == PLAtomic(ff)
assert parser("[B]ff").delta(i_ab) == PLAtomic(ff)
f = parser("!(<!(A<->B)+(B;A)*+(!last)?>[(true)*]end)")
assert f.delta(i_) == f.to_nnf().delta(i_)
assert f.delta(i_ab) == f.to_nnf().delta(i_ab)
assert f.delta(i_, epsilon=True) == f.to_nnf().delta(i_, epsilon=True)
assert f.delta(i_ab, epsilon=True) == f.to_nnf().delta(i_ab, epsilon=True)
# with epsilon=True, the result is either PLTrue or PLFalse
assert f.delta(i_, epsilon=True) in [PLTrue(), PLFalse()]
def test_delta():
parser = LDLfParser()
i_ = {}
i_a = {"A": True}
i_b = {"B": True}
i_ab = {"A": True, "B": True}
true = PLTrue()
false = PLFalse()
tt = PLAtomic(LDLfLogicalTrue())
ff = PLAtomic(LDLfLogicalFalse())
assert parser("<A>tt").delta(i_) == false
assert parser("<A>tt").delta(i_a) == tt
assert parser("<A>tt").delta(i_b) == false
assert parser("<A>tt").delta(i_ab) == tt
assert parser("[B]ff").delta(i_) == true
assert parser("[B]ff").delta(i_a) == true
assert parser("[B]ff").delta(i_b) == ff
assert parser("[B]ff").delta(i_ab) == ff
f = parser("!(<?(!last)>end)")
assert f.delta(i_) == f.to_nnf().delta(i_)
assert f.delta(i_ab) == f.to_nnf().delta(i_ab)
assert f.delta(i_, epsilon=True) == f.to_nnf().delta(i_, epsilon=True)
assert f.delta(i_ab, epsilon=True) == f.to_nnf().delta(i_ab, epsilon=True)
# with epsilon=True, the result is either PLTrue or PLFalse
assert f.delta(i_, epsilon=True) in [PLTrue(), PLFalse()]
def __init__(self,
input_space,
bricks_cols=3,
bricks_rows=3,
lines_num=3,
gamma=0.99,
on_the_fly=False):
assert lines_num == bricks_cols or lines_num == bricks_rows
self.line_symbols = [Symbol("l%s" % i) for i in range(lines_num)]
lines = self.line_symbols
parser = LDLfParser()
string_formula = get_breakout_lines_formula(lines)
print(string_formula)
f = parser(string_formula)
reward = 10000
super().__init__(BreakoutGoalFeatureExtractor(input_space,
bricks_cols=bricks_cols,
bricks_rows=bricks_rows),
set(lines),
f,
reward,
gamma=gamma,
on_the_fly=on_the_fly)
def test_ldlf_example_readme():
from flloat.parser.ldlf import LDLfParser
parser = LDLfParser()
formula = "<true*; a & b>tt"
parsed_formula = parser(formula)
assert (
str(parsed_formula) == "<((true)* ; (b & a))>(tt)"
or str(parsed_formula) == "<((true)* ; (a & b))>(tt)"
)
assert parsed_formula.find_labels() == {c for c in "ab"}
t1 = [
{"a": False, "b": False},
{"a": True, "b": False},
{"a": True, "b": False},
{"a": True, "b": True},
{"a": False, "b": False},
]
assert parsed_formula.truth(t1, 0)
t2 = [{"a": False, "b": False}, {"a": True, "b": False}, {"a": False, "b": True}]
assert not parsed_formula.truth(t2, 0)
dfa = parsed_formula.to_automaton()
assert dfa.accepts(t1)
assert not dfa.accepts(t2)
def test_find_labels():
parser = LDLfParser()
f = "< (!(A | B | C ))* ; (A | C) ; (!(A | B | C))* ; (B | C) ><true>tt"
formula = parser(f)
assert formula.find_labels() == {c for c in "ABC"}
f = "(<(((?(<B>tt));true)*) ; (? (<(A & B)>tt))>tt)"
formula = parser(f)
assert formula.find_labels() == {c for c in "AB"}
def test_nnf():
parser = LDLfParser()
assert parser("!tt").to_nnf() == LDLfLogicalFalse()
assert parser("!!tt").to_nnf() == LDLfLogicalTrue()
f = parser("!(<!(A&B)>end)").to_nnf()
ff = parser("[!A | !B]<true>tt")
assert f == ff
assert parser("!(<!(A&B)>end)").to_nnf() == parser("[!A | !B]<true>tt")
f = parser("!(<((!(A<->D))+((B;C)*)+(?(!last)))>[(true)*]end)")
assert f.to_nnf() == f.to_nnf().to_nnf()
def test_nnf():
parser = LDLfParser()
assert parser("!tt").to_nnf() == LDLfLogicalFalse()
assert parser("!!tt").to_nnf() == LDLfLogicalTrue()
assert parser("!(<!(A&B)>end)").to_nnf() == parser("[!A | !B]<true>tt")
f = parser("!(<!(A<->D)+(B;C)*+(!last)?>[(true)*]end)")
assert f.to_nnf() == parser(
"[(([true]<true>tt)? + ((B ; C))* + ((A | D) & (!(D) | !(A))))]<(true)*><true>tt"
)
assert f.to_nnf() == f.to_nnf().to_nnf().to_nnf().to_nnf()
def __init__(self, on_the_fly=False):
self.row_symbols = [Symbol(r) for r in ["r0", "r1", "r2"]]
rows = self.row_symbols
parser = LDLfParser()
f = parser(
"<(!r0 & !r1 & !r2)*;(r0 & !r1 & !r2)*;(r0 & r1 & !r2)*; r0 & r1 & r2>tt"
)
reward = 10000
super().__init__(BreakoutRowBottomUpGoalFeatureExtractor(),
set(rows),
f,
reward,
on_the_fly=on_the_fly)
def make_env(config: MinecraftConfiguration,
output_dir,
goal_reward: float = 1000.0,
reward_shaping: bool = True) -> gym.Env:
"""
Make the Minecraft environment.
:param config: the Minecraft configuration.
:param output_dir: the path to the output directory.
:param reward_shaping: apply automata-based reward shaping.
:return: the Gym environment.
"""
temporal_goals = []
for t in config.tasks:
formula_string = make_goal(t)
print("Formula: {}".format(formula_string))
formula = LDLfParser()(formula_string)
tg = TemporalGoal(
formula=formula,
reward=goal_reward,
# labels=LABELS,
reward_shaping=reward_shaping,
zero_terminal_state=False,
extract_fluents=extract_minecraft_fluents)
temporal_goals.append(tg)
tg._automaton.to_dot(
os.path.join(output_dir, "true_automaton_{}".format(t.name)))
print("Original automaton at {}".format(
os.path.join(output_dir, "true_automaton_{}.svg".format(t.name))))
env = MinecraftTemporalWrapper(
MinecraftExpertWrapper(config),
temporal_goals,
combine=lambda obs, qs: tuple((*obs, *qs)),
feature_extractor=lambda obs, action:
(obs["x"], obs["y"], obs["theta"])
if config.action_space_type == ActionSpaceType.DIFFERENTIAL else
(obs["x"], obs["y"]))
positive_traces_path = Path(output_dir, "positive_traces.txt")
negative_traces_path = Path(output_dir, "negative_traces.txt")
env = TemporalGoalWrapperLogTraces(env, extract_minecraft_fluents,
positive_traces_path,
negative_traces_path)
return env
def make_env(config: BreakoutConfiguration,
output_dir,
goal_reward: float = 1000.0,
reward_shaping: bool = True) -> gym.Env:
"""
Make the Breakout environment.
:param config: the Breakout configuration.
:param output_dir: the path to the output directory.
:param reward_shaping: apply automata-based reward shaping.
:return: the Gym environment.
"""
unwrapped_env = BreakoutExpertWrapper(config)
formula_string = make_goal(config.brick_cols)
formula = LDLfParser()(formula_string)
labels = {"c{}".format(i) for i in range(config.brick_cols)}
tg = TemporalGoal(formula=formula,
reward=goal_reward,
labels=labels,
reward_shaping=reward_shaping,
zero_terminal_state=False,
extract_fluents=extract_breakout_fluents)
print("Formula: {}".format(formula_string))
tg._automaton.to_dot(os.path.join(output_dir, "true_automaton"))
print("Original automaton at {}".format(
os.path.join(output_dir, "true_automaton.svg")))
env = TemporalGoalWrapper(
unwrapped_env,
[tg],
combine=lambda obs, qs: tuple((*obs, *qs)),
feature_extractor=(
lambda obs, action: (
obs["paddle_x"], #obs["paddleup_x"],
)))
positive_traces_path = Path(output_dir, "positive_traces.txt")
negative_traces_path = Path(output_dir, "negative_traces.txt")
env = TemporalGoalWrapperLogTraces(env, extract_breakout_fluents,
positive_traces_path,
negative_traces_path)
return env
def make_env(config: SapientinoConfiguration,
output_dir,
goal_reward: float = 1000.0,
reward_shaping: bool = True) -> gym.Env:
"""
Make the Breakout environment.
:param config: the Breakout configuration.
:param output_dir: the path to the output directory.
:param reward_shaping: apply automata-based reward shaping.
:return: the Gym environment.
"""
formula_string = make_goal()
print("Formula: {}".format(formula_string))
formula = LDLfParser()(formula_string)
tg = TemporalGoal(formula=formula,
reward=goal_reward,
labels={color
for color in colors}.union({"bad_beep"}),
reward_shaping=reward_shaping,
zero_terminal_state=False,
extract_fluents=extract_sapientino_fluents)
tg._automaton.to_dot(os.path.join(output_dir, "true_automaton"))
print("Original automaton at {}".format(
os.path.join(output_dir, "true_automaton.svg")))
env = SapientinoTemporalWrapper(
SapientinoWrapper(SapientinoDictSpace(config)), [tg],
combine=lambda obs, qs: tuple((*obs, *qs)),
feature_extractor=lambda obs, action: (obs["x"], obs["y"], obs["th"])
if config.differential else (obs["x"], obs["y"]))
positive_traces_path = Path(output_dir, "positive_traces.txt")
negative_traces_path = Path(output_dir, "negative_traces.txt")
env = TemporalGoalWrapperLogTraces(env, extract_sapientino_fluents,
positive_traces_path,
negative_traces_path)
return env
def test_truth():
sa, sb = "a", "b"
a, b = PLAtomic(sa), PLAtomic(sb)
i_ = PLFalseInterpretation()
i_a = PLInterpretation({sa})
i_b = PLInterpretation({sb})
i_ab = PLInterpretation({sa, sb})
tr_false_a_b_ab = FiniteTrace([i_, i_a, i_b, i_ab, i_])
tt = LDLfLogicalTrue()
ff = LDLfLogicalFalse()
assert tt.truth(tr_false_a_b_ab, 0)
assert not ff.truth(tr_false_a_b_ab, 0)
assert not LDLfNot(tt).truth(tr_false_a_b_ab, 0)
assert LDLfNot(ff).truth(tr_false_a_b_ab, 0)
assert LDLfAnd([LDLfPropositional(a),
LDLfPropositional(b)]).truth(tr_false_a_b_ab, 3)
assert not LDLfDiamond(RegExpPropositional(PLAnd([a, b])), tt).truth(
tr_false_a_b_ab, 0)
parser = LDLfParser()
trace = FiniteTrace.from_symbol_sets([{}, {"A"}, {"A"}, {"A", "B"}, {}])
formula = "<true*;A&B>tt"
parsed_formula = parser(formula)
assert parsed_formula.truth(trace, 0)
formula = "[(A+!B)*]<C>tt"
parsed_formula = parser(formula)
assert not parsed_formula.truth(trace, 1)
formula = "<(<!C>tt)?><A>tt"
parsed_formula = parser(formula)
assert parsed_formula.truth(trace, 1)
formula = "<!C+A>tt"
parsed_formula = parser(formula)
assert parsed_formula.truth(trace, 1)
def __init__(self,
input_space,
formula_string,
gamma=0.99,
on_the_fly=False):
# self.location_syms = [Symbol(l[0]) for l in LOCATIONS]
# self.get, self.use = Symbol("get"), Symbol("use")
self.locations = [l[0] for l in LOCATIONS]
parser = LDLfParser()
# parser = LTLfParser()
print(formula_string)
f = parser(formula_string)
reward = 1
super().__init__(MinecraftTEFeatureExtractor(input_space),
f.find_labels(),
f,
reward,
gamma=gamma,
on_the_fly=on_the_fly)
def test_ldlf_example_readme():
from flloat.parser.ldlf import LDLfParser
parser = LDLfParser()
formula = "<true*; A & B>tt"
parsed_formula = parser(formula)
assert str(parsed_formula) == "<((true)* ; (B & A))>(tt)" or str(
parsed_formula) == "<((true)* ; (A & B))>(tt)"
assert parsed_formula.find_labels() == {c for c in "AB"}
from flloat.semantics.traces import FiniteTrace
t1 = FiniteTrace.from_symbol_sets([{}, {"A"}, {"A"}, {"A", "B"}, {}])
assert parsed_formula.truth(t1, 0)
t2 = FiniteTrace.from_symbol_sets([{}, {"A"}, {"B"}])
assert not parsed_formula.truth(t2, 0)
dfa = parsed_formula.to_automaton()
assert dfa.accepts(t1.trace)
assert not dfa.accepts(t2.trace)
def __init__(self,
input_space,
gamma=0.99,
on_the_fly=False,
relaxed=True):
self.color_syms = [Symbol(c) for c in COLORS] + [Symbol("no_color")]
self.bip = Symbol("bip")
parser = LDLfParser()
if not relaxed:
# the formula
sb = str(self.bip)
not_bip = ";(!%s)*;" % sb
and_bip = lambda x: str(x) + " & " + sb
# every color-bip in sequence, no bip between colors.
formula_string = "<(!%s)*;" % sb + not_bip.join(
map(and_bip, self.color_syms[:-1])) + ">tt"
else:
sb = str(self.bip)
not_bip = ";true*;"
and_bip = lambda x: str(x) + " & " + sb
# every color-bip in sequence, no bip between colors.
formula_string = "<true*;" + not_bip.join(
map(and_bip, self.color_syms[:-1])) + ">tt"
print(formula_string)
f = parser(formula_string)
reward = 1
super().__init__(SapientinoTEFeatureExtractor(input_space),
set(self.color_syms).union({self.bip}),
f,
reward,
gamma=gamma,
on_the_fly=on_the_fly)
def __init__(self,
input_space,
bricks_cols=3,
bricks_rows=3,
lines_num=3,
gamma=0.99,
on_the_fly=False):
self.line_symbols = [Symbol("l%s" % i) for i in range(lines_num)]
lines = self.line_symbols
parser = LDLfParser()
f = parser(
"<(!l0 & !l1 & !l2)*;(l0 & !l1 & !l2);(l0 & !l1 & !l2)*;(l0 & l1 & !l2); (l0 & l1 & !l2)*; l0 & l1 & l2>tt"
)
reward = 10000
super().__init__(BreakoutGoalFeatureExtractor(input_space,
bricks_cols=bricks_cols,
bricks_rows=bricks_rows),
set(lines),
f,
reward,
gamma=gamma,
on_the_fly=on_the_fly)
def setup_class(cls):
cls.parser = LDLfParser()
cls.trace = [{}, {"A": True}, {"A": True}, {"A": True, "B": True}, {}]
def test_parser():
parser = LDLfParser()
a, b = PLAtomic("A"), PLAtomic("B")
tt = LDLfLogicalTrue()
ff = LDLfLogicalFalse()
true = PLTrue()
false = PLFalse()
r_true = RegExpPropositional(true)
r_false = RegExpPropositional(false)
assert tt == parser("tt")
assert ff == parser("ff")
assert LDLfDiamond(r_true, tt) == parser("<true>tt")
assert LDLfDiamond(r_false, tt) == parser("<false>tt")
assert parser("!tt & <!A&B>tt") == LDLfAnd([
LDLfNot(tt),
LDLfDiamond(RegExpPropositional(PLAnd([PLNot(a), b])), tt)
])
assert parser("[true*]([true]ff | <!A>tt | <(true)*><B>tt)") == LDLfBox(
RegExpStar(r_true),
LDLfOr([
LDLfBox(r_true, ff),
LDLfDiamond(RegExpPropositional(PLNot(a)), tt),
LDLfDiamond(RegExpStar(r_true),
(LDLfDiamond(RegExpPropositional(b), tt))),
]),
)
assert parser("[A&B&A]ff <-> <A&B&A>tt") == LDLfEquivalence([
LDLfBox(RegExpPropositional(PLAnd([a, b, a])), ff),
LDLfDiamond(RegExpPropositional(PLAnd([a, b, a])), tt),
])
assert parser("<A+B>tt") == LDLfDiamond(
RegExpUnion([RegExpPropositional(a),
RegExpPropositional(b)]), tt)
assert parser("<A;B>tt") == LDLfDiamond(
RegExpSequence([RegExpPropositional(a),
RegExpPropositional(b)]), tt)
assert parser("<A+(B;A)>end") == LDLfDiamond(
RegExpUnion([
RegExpPropositional(a),
RegExpSequence([RegExpPropositional(b),
RegExpPropositional(a)]),
]),
LDLfEnd(),
)
assert parser("!(<(!(A<->D))+((B;C)*)+(?!last)>[(true)*]end)") == LDLfNot(
LDLfDiamond(
RegExpUnion([
RegExpPropositional(PLNot(PLEquivalence([a, PLAtomic("D")]))),
RegExpStar(
RegExpSequence([
RegExpPropositional(PLAtomic("B")),
RegExpPropositional(PLAtomic("C")),
])),
RegExpTest(LDLfNot(LDLfLast())),
]),
LDLfBox(RegExpStar(RegExpPropositional(PLTrue())), LDLfEnd()),
))
def setup_class(cls):
cls.parser = LDLfParser()
cls.i_ = {}
cls.i_a = {"A": True}
cls.i_b = {"B": True}
cls.i_ab = {"A": True, "B": True}
def __init__(
self, env_name, fluents, n_functions, logdir=None, verbose=True
):
"""Initialize.
:param env_name: a gym environment name.
:param fluents: the list of propositional atoms that will be predicted.
:param n_functions: number of predictions to valuate in parallel.
:param logdir: if provided, the automaton just parsed is saved here.
:param verbose: log the parsing step, because it may take a long time!
"""
# Loading
if verbose:
print("> Parsing", env_name, "constraints")
data = selector.read_back(env_name)
json_constraints = data["constraints"]
# Parsing
constraint = " & ".join(json_constraints)
formula = LDLfParser()(constraint) # type: LDLfFormula
# Check: all atoms must be evaluated
atoms = formula.find_labels()
all_predicted = all((a in fluents for a in atoms))
if not all_predicted:
raise ValueError(
"One of the atoms " + str(atoms) + " is not in fluents")
# Conversion (slow op)
automaton = formula.to_automaton() # type: SymbolicAutomaton
automaton = automaton.determinize()
if verbose:
print("> Parsed")
# Visualize the automaton
if logdir is not None:
graphviz = automaton.to_graphviz()
graphviz.render(
"constraint.gv", directory=logdir, view=False, cleanup=False)
# Store
self.env_name = env_name
self.fluents = fluents
self._str = constraint
self._formula = formula
self._automaton = automaton
self._n_functions = n_functions
self._n_fluents = len(self.fluents)
# Automaton parallel execution
self._tf_automata = TfSymbolicAutomaton(self._automaton, self.fluents)
# Prepare buffers
self._current_states = tf.Variable(
tf.zeros([self._n_functions], dtype=tf.int32),
trainable=False, name="current_states")
self._final_counts = tf.Variable(
tf.zeros(
[self._n_functions, len(self._tf_automata.final_states)],
dtype=tf.int32),
trainable=False, name="final_counts_buffer")
self._timestep = tf.Variable(0, trainable=False, name="timestep")
# Ready for a new run
self._reset()
def setup_class(cls):
cls.parser = LDLfParser()
cls.i_ = PLInterpretation(set())
cls.i_a = PLInterpretation({"A"})
cls.i_b = PLInterpretation({"B"})
cls.i_ab = PLInterpretation({"A", "B"})
RegExpStar,
LDLfOr,
RegExpUnion,
RegExpSequence,
LDLfEnd,
RegExpTest,
LDLfLast,
)
from flloat.parser.ldlf import LDLfParser
from flloat.pl import PLTrue, PLFalse, PLAnd, PLNot, PLAtomic, PLEquivalence
from .conftest import LDLfFixtures
from .strategies import propositional_words
from .parsing import ParsingCheck
from . import test_pl
parser = LDLfParser()
def test_parser():
parser = LDLfParser()
a, b = PLAtomic("A"), PLAtomic("B")
tt = LDLfLogicalTrue()
ff = LDLfLogicalFalse()
true = PLTrue()
false = PLFalse()
r_true = RegExpPropositional(true)
r_false = RegExpPropositional(false)
assert tt == parser("tt")
assert ff == parser("ff")
def __init__(
self,
env_name,
fluents,
reward,
logdir,
load=None,
verbose=True,
):
"""Initialize.
:param env_name: a gym atari environment name.
:param fluents: the list of propositional atoms that are known at
each step.
:param reward: (float) this reward is returned when the execution
reaches a final state (at the first instant an execution satisfies
the restraining specification).
:param logdir: the automaton just parsed is saved here.
:param load: if provided, the automaton is not computed but loaded
from this file. A path to a rb.pickle file.
:param verbose: verbose flag (automaton conversion may take a while).
"""
# Read
data = selector.read_back(env_name)
json_rb = data["restraining_bolt"] + data["constraints"]
# Parsing
restraining_spec = " & ".join(json_rb)
formula = LDLfParser()(restraining_spec) # type: LDLfFormula
# Check: all atoms must be evaluated
atoms = formula.find_labels()
all_predicted = all((a in fluents for a in atoms))
if not all_predicted:
raise ValueError("One of the atoms " + str(atoms) +
" is not in fluents")
# Parse
if load is None:
# Conversion (slow op)
if verbose:
print("> Parsing", env_name, "restraining specification")
automaton = formula.to_automaton() # type: SymbolicAutomaton
automaton = automaton.determinize().complete()
if verbose:
print("> Parsed")
# Save and visualize the automaton
graphviz = automaton.to_graphviz()
graphviz.render("rb.gv",
directory=logdir,
view=False,
cleanup=False)
with open(os.path.join(logdir, "rb.pickle"), "wb") as f:
pickle.dump(automaton, f)
# Load
else:
with open(load, "rb") as f:
automaton = pickle.load(f)
if verbose:
print(">", load, "loaded")
# Visualize the automaton loaded (debugging)
graphviz = automaton.to_graphviz()
graphviz.render("loaded_rb.gv",
directory=logdir,
view=False,
cleanup=False)
# Runner
simulator = AutomatonSimulator(automaton)
# Store
self.env_name = env_name
self.fluents = fluents
self._str = restraining_spec
self._formula = formula
self._automaton = automaton
self._simulator = simulator
self._reward = reward
self._last_state = None