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Diffstat (limited to 'Test/dafny4/Bug128.dfy')
| -rw-r--r-- | Test/dafny4/Bug128.dfy | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Test/dafny4/Bug128.dfy b/Test/dafny4/Bug128.dfy new file mode 100644 index 00000000..b7220335 --- /dev/null +++ b/Test/dafny4/Bug128.dfy @@ -0,0 +1,13 @@ +// RUN: %dafny /noNLarith /z3opt:pi.warnings=true /proverWarnings:1 /compile:0 /autoTriggers:1 "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+
+function GetIndexInSequence<T>(s:seq<T>, x:T) : int
+ requires x in s;
+ ensures 0 <= GetIndexInSequence(s, x) < |s|;
+ ensures s[GetIndexInSequence(s, x)] == x; {
+ var i :| 0 <= i < |s| && s[i] == x;
+ i
+ }
+
+
+
|