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smtbmc: Add --incremental mode

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This commit is contained in:
Jannis Harder 2023-11-16 13:15:54 +01:00
parent 032fab1f54
commit e319606ec9
4 changed files with 512 additions and 64 deletions
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23
backends/smt2/witness.py
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@ -33,10 +33,14 @@ def cli():
Display a Yosys witness trace in a human readable format.
""")
@click.argument("input", type=click.File("r"))
def display(input):
@click.option("--skip-x", help="Treat x bits as unassigned.", is_flag=True)
def display(input, skip_x):
click.echo(f"Reading Yosys witness trace {input.name!r}...")
inyw = ReadWitness(input)
if skip_x:
inyw.skip_x()
def output():
yield click.style("*** RTLIL bit-order below may differ from source level declarations ***", fg="red")
@ -91,7 +95,11 @@ If two or more inputs are provided they will be concatenated together into the o
@click.option("--append", "-p", type=int, multiple=True,
help="Number of steps (+ve or -ve) to append to end of input trace. "
+"Can be defined multiple times, following the same order as input traces. ")
def yw2yw(inputs, output, append):
@click.option("--skip-x", help="Leave input x bits unassigned.", is_flag=True)
def yw2yw(inputs, output, append, skip_x):
if len(inputs) == 0:
raise click.ClickException(f"no inputs specified")
outyw = WriteWitness(output, "yosys-witness yw2yw")
join_inputs = len(inputs) > 1
inyws = {}
@ -129,12 +137,12 @@ def yw2yw(inputs, output, append):
click.echo(f"Copying yosys witness trace from {input.name!r} to {output.name!r}...")
if first_witness:
outyw.step(init_values)
outyw.step(init_values, skip_x=skip_x)
else:
outyw.step(inyw.first_step())
outyw.step(inyw.first_step(), skip_x=skip_x)
for t, values in inyw.steps(1):
outyw.step(values)
outyw.step(values, skip_x=skip_x)
click.echo(f" copied {t + 1} time steps.")
first_witness = False
@ -174,7 +182,8 @@ This requires a Yosys witness AIGER map file as generated by 'write_aiger -ywmap
@click.argument("input", type=click.File("r"))
@click.argument("mapfile", type=click.File("r"))
@click.argument("output", type=click.File("w"))
def aiw2yw(input, mapfile, output):
@click.option("--skip-x", help="Leave input x bits unassigned.", is_flag=True)
def aiw2yw(input, mapfile, output, skip_x):
input_name = input.name
click.echo(f"Converting AIGER witness trace {input_name!r} to Yosys witness trace {output.name!r}...")
click.echo(f"Using Yosys witness AIGER map file {mapfile.name!r}")
@ -245,7 +254,7 @@ def aiw2yw(input, mapfile, output):
values[bit] = v
outyw.step(values)
outyw.step(values, skip_x=skip_x)
outyw.end_trace()