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add timeout for clingo #14

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add timeout for clingo #14

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10 changes: 6 additions & 4 deletions gunfolds/utils/clingo.py
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Original file line number Diff line number Diff line change
Expand Up @@ -42,13 +42,15 @@ def run_clingo(command,
"""
if pnum is None:
pnum = PNUM
ctrl = clngo.Control(["--warn=no-atom-undefined","--configuration=tweety", "-t", str(int(pnum)) + ",split", "-n", str(capsize)])
ctrl = clngo.Control(
["--warn=no-atom-undefined", "--configuration=tweety", "-t", str(int(pnum)) + ",split", "-n", str(capsize)])
if not exact:
ctrl.configuration.solve.opt_mode = "opt"
ctrl.add("base", [], command.decode())
ctrl.ground([("base", [])])
models = []
with ctrl.solve(yield_=True, async_=True) as handle:
while not handle.wait(timeout): pass
for model in handle:
models.append([str(atom) for atom in model.symbols(shown=True)])
cost = ctrl.statistics["summary"]["costs"]
Expand All @@ -57,9 +59,9 @@ def run_clingo(command,
if num_opt == 0.0:
return {}, cost
else:
return models, cost
return models, cost
return models, cost


def clingo(command, exact=True,
convert=msl_jclingo2g,
Expand Down Expand Up @@ -99,7 +101,7 @@ def clingo(command, exact=True,
timeout=timeout,
capsize=capsize,
pnum=pnum)
if result[0]=={} or result[0]==[]:
if result[0] == {} or result[0] == []:
return {}
else:
if not exact:
Expand Down