3d79022abb
Part of #467. * tests/python/bdddict.py, tests/python/ltl2tgba.py, tests/python/ltlparse.py, tests/python/ltlsimple.py, tests/python/sccinfo.py, tests/python/simstate.py, tests/python/split.py, tests/python/tra2tba.py: Adjust to deal with a non-refcounted Python implementation.
140 lines
3.5 KiB
Python
Executable file
140 lines
3.5 KiB
Python
Executable file
# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2009, 2010, 2012, 2014-2016, 2021 Laboratoire de Recherche
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# et Développement de l'Epita (LRDE).
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# Copyright (C) 2003, 2004 Laboratoire d'Informatique de Paris 6 (LIP6),
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# département Systèmes Répartis Coopératifs (SRC), Université Pierre
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# et Marie Curie.
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#
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# This file is part of Spot, a model checking library.
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#
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# Spot is free software; you can redistribute it and/or modify it
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# under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# Spot is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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# License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This is a python implementation of a small ltl2tgba translator that calls the
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# translation and simplifications functions itself. It's better to use the
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# translate() function today.
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import sys
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import getopt
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import spot
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def usage(prog):
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sys.stderr.write("""Usage: %s [OPTIONS...] formula
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Options:
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-d turn on traces during parsing
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-D degeneralize the automaton
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-f use Couvreur's FM algorithm for translation
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-t display reachable states in LBTT's format
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-T use ltl2taa for translation
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-v display the BDD variables used by the automaton
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-W minimize obligation properties
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""" % prog)
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sys.exit(2)
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prog = sys.argv[0]
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try:
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opts, args = getopt.getopt(sys.argv[1:], 'dDftTvW')
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except getopt.GetoptError:
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usage(prog)
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exit_code = 0
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debug_opt = False
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degeneralize_opt = None
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output = 0
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fm_opt = 0
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taa_opt = 0
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wdba = 0
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for o, a in opts:
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if o == '-d':
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debug_opt = True
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elif o == '-D':
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degeneralize_opt = 1
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elif o == '-f':
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fm_opt = 1
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elif o == '-t':
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output = 6
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elif o == '-T':
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taa_opt = 1
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elif o == '-v':
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output = 5
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elif o == '-W':
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wdba = 1
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else:
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usage(prog)
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if len(args) != 1:
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usage(prog)
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cout = spot.get_cout()
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cerr = spot.get_cerr()
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e = spot.default_environment.instance()
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pf = spot.parse_infix_psl(args[0], e, debug_opt)
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if pf.format_errors(cerr):
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exit_code = 1
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f = pf.f
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dict = spot.make_bdd_dict()
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if f:
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if fm_opt:
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a = spot.ltl_to_tgba_fm(f, dict)
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concrete = 0
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elif taa_opt:
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a = concrete = spot.ltl_to_taa(f, dict)
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else:
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assert "unspecified translator"
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if wdba:
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a = spot.ensure_digraph(a)
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a = spot.minimize_obligation(a, f)
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del f
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degeneralized = None
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if degeneralize_opt:
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a = degeneralized = spot.degeneralize(a)
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if output == 0:
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spot.print_dot(cout, a)
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elif output == 5:
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a.get_dict().dump(cout)
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elif output == 6:
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spot.print_lbtt(cout, a)
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else:
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assert "unknown output option"
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if degeneralize_opt:
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del degeneralized
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# Must delete absolutely all references to an automaton
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# so that the C++ destructor gets called.
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del a, concrete
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else:
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exit_code = 1
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del pf
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del dict
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# In CPython, reference counting will cause the above del()
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# to actually destruct the above formulas. However that is
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# not necessary in other implementations.
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from platform import python_implementation
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if python_implementation() == 'CPython':
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assert spot.fnode_instances_check()
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