def decompose_action_app(state2,expr):
assert is_action_app(expr)
action = eval_action(expr.rep)
state1 = eval_state(expr.args[0])
comps = action.decompose(state1.value,state2.value)
bg = state1.domain.background_theory(state1.in_scope)
for pre,acts,post in comps:
print "pre core: {} ".format(unsat_core(and_clauses(pre[1],bg),true_clauses()))
print "post core: {} ".format(unsat_core(and_clauses(post[1],bg),true_clauses()))
upds = [act.update(state1.domain,state1.in_scope) for act in acts]
h = History(pre)
# print "h.post: {}".format(h.post)
for upd in upds:
# print "upd: {}".format(upd)
h = h.forward_step(bg,upd)
# print "h.post: {}".format(h.post)
h = h.assume(post)
# print "h.post: {}".format(h.post)
bmc_res = h.satisfy(bg)
if bmc_res == None:
continue
universe,path = bmc_res
states = []
for i,value in enumerate(path):
# print "core: {} ".format(unsat_core(and_clauses(value[1],bg),true_clauses()))
state = new_state(value)
if i != 0:
state.expr = action_app(acts[i-1],states[-1])
state.update = upds[i-1]
state.pred = states[-1]
state.label = None
state.universe = universe
states.append(state)
return state
return None
def decompose_action_app(state2, expr):
assert is_action_app(expr)
action = eval_action(expr.rep)
state1 = eval_state(expr.args[0])
comps = action.decompose(state1.value, state2.value)
bg = state1.domain.background_theory(state1.in_scope)
for pre, acts, post in comps:
upds = [act.update(state1.domain, state1.in_scope) for act in acts]
h = History(pre)
# print "h.post: {}".format(h.post)
for upd in upds:
# print "upd: {}".format(upd)
h = h.forward_step(bg, upd)
# print "h.post: {}".format(h.post)
h = h.assume(post)
# print "h.post: {}".format(h.post)
bmc_res = h.satisfy(bg)
if bmc_res == None:
continue
universe, path = bmc_res
states = []
for i, value in enumerate(path):
state = new_state(value)
if i != 0:
state.expr = action_app(acts[i - 1], states[-1])
state.update = upds[i - 1]
state.pred = states[-1]
state.label = None
state.universe = universe
states.append(state)
return state
return None
def new_history(state):
return History(state.value)