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Added $initstate support to smtbmc flow

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This commit is contained in:
Clifford Wolf 2016-07-27 16:11:37 +02:00
parent 8d88fcb270
commit da56a5bbc6
3 changed files with 19 additions and 2 deletions
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3
backends/smt2/smtbmc.py
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@ -130,6 +130,7 @@ if tempind:
smt.write("(declare-fun s%d () %s_s)" % (step, topmod))
smt.write("(assert (%s_u s%d))" % (topmod, step))
smt.write("(assert (%s_h s%d))" % (topmod, step))
smt.write("(assert (not (%s_is s%d)))" % (topmod, step))
if step == num_steps:
smt.write("(assert (not (%s_a s%d)))" % (topmod, step))
@ -172,9 +173,11 @@ else: # not tempind
if step == 0:
smt.write("(assert (%s_i s0))" % (topmod))
smt.write("(assert (%s_is s0))" % (topmod))
else:
smt.write("(assert (%s_t s%d s%d))" % (topmod, step-1, step))
smt.write("(assert (not (%s_is s%d)))" % (topmod, step))
if step < skip_steps:
if assume_skipped is not None and step >= assume_skipped: