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-rw-r--r--Test/VSI-Benchmarks/b3.dfy10
1 files changed, 8 insertions, 2 deletions
diff --git a/Test/VSI-Benchmarks/b3.dfy b/Test/VSI-Benchmarks/b3.dfy
index f59b0c3e..d47c4d4d 100644
--- a/Test/VSI-Benchmarks/b3.dfy
+++ b/Test/VSI-Benchmarks/b3.dfy
@@ -96,7 +96,7 @@ class Benchmark3 {
if x < m { k := j; m := x; }
j := j+1;
}
-
+
j := 0;
while j < k
invariant j <= k;
@@ -108,10 +108,16 @@ class Benchmark3 {
RotationLemma(old(q.contents), j, qc0, q.contents);
j := j+1;
}
-
+
assert j == k;
assert q.contents == old(q.contents)[k..] + old(q.contents)[..k];
+ ghost var qq := q.contents;
m := q.Dequeue();
+ assert q.contents == qq[1..] && m == qq[0];
+ assert [m] + q.contents == qq;
+ assert |old(q.contents)| == |q.contents| + 1;
+
+ assert q.contents == old(q.contents)[k+1..] + old(q.contents)[..k];
}
lemma RotationLemma(O: seq, j: nat, A: seq, C: seq)