#
# SymbiYosys (sby) -- Front-end for Yosys-based formal verification flows
#
# Copyright (C) 2016  Claire Xenia Wolf <claire@yosyshq.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#

import re, os, getopt
from sby_core import SbyProc

def run(task):
    task.handle_int_option("depth", 20)
    task.handle_int_option("append", 0)
    task.handle_str_option("aigsmt", "yices")

    for engine_idx, engine_section in task.engine_list():
        if isinstance(engine_section, list):
            engine = engine_section
            engine_name = None
        else:
            assert len(engine_section[1]) > 0
            engine = engine_section[1][0]
            engine_name = engine_section[0]

        if engine_name is None:
            engine_name = engine_idx


        task.log(f"""engine_{engine_name}: {" ".join(engine)}""")
        task.makedirs(f"{task.workdir}/engine_{engine_idx}")

        if engine[0] == "smtbmc":
            import sby_engine_smtbmc
            sby_engine_smtbmc.run("bmc", task, engine_idx, engine)

        elif engine[0] == "abc":
            import sby_engine_abc
            sby_engine_abc.run("bmc", task, engine_idx, engine)

        elif engine[0] == "aiger":
            import sby_engine_aiger
            sby_engine_aiger.run("bmc", task, engine_idx, engine)

        elif engine[0] == "btor":
            import sby_engine_btor
            sby_engine_btor.run("bmc", task, engine_idx, engine)

        elif engine[0] == "none":
            pass

        else:
            task.error(f"Invalid engine '{engine[0]}' for bmc mode.")