3a3913cf50
Fixes #152, reported by Valentin Iovene. * spot/twa/twaproduct.cc (~twa_product): Delete iter_cache_. * tests/python/otfcrash.py: New file. * tests/Makefile.am: Add it. * NEWS: Mention the bug.
39 lines
970 B
Python
39 lines
970 B
Python
import spot
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import spot.ltsmin
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import tempfile
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import shutil
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import sys
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# this test requires divine with --ltsmin support
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if shutil.which("divine") == None:
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sys.exit(77)
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import subprocess
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out = subprocess.check_output(['divine', 'compile',
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'--help'], stderr=subprocess.STDOUT)
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if b'LTSmin' not in out:
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sys.exit(77)
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# the test case actually starts here
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with tempfile.NamedTemporaryFile(dir='.', suffix='.dve') as fp:
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fp.write(b"""int f = 3;
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process R {
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int p = 1, found = 0;
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state i, e;
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init i;
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trans
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i -> i {guard p != f; effect p = p + 1;},
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i -> e {guard p == f; effect found = 1;},
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e -> e {};
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}
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system async;
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""")
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fp.flush()
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m = spot.ltsmin.load(fp.name)
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def modelcheck(formula, model):
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a = spot.translate(formula)
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k = m.kripke([ap.ap_name() for ap in a.ap()])
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p = spot.otf_product(k, a)
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return p.is_empty()
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assert(modelcheck('X "R.found"', m) == True)
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