diff options
Diffstat (limited to 'backends/smt2/smtbmc.py')
| -rw-r--r-- | backends/smt2/smtbmc.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/backends/smt2/smtbmc.py b/backends/smt2/smtbmc.py index f74908f87..0e94a1675 100644 --- a/backends/smt2/smtbmc.py +++ b/backends/smt2/smtbmc.py @@ -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: |