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authorGravatar Unknown <leino@LEINO6.redmond.corp.microsoft.com>2012-04-04 18:40:59 -0700
committerGravatar Unknown <leino@LEINO6.redmond.corp.microsoft.com>2012-04-04 18:40:59 -0700
commit659491fddae2ee457100b6fa4c27afef3340621e (patch)
treef9538d97ac1e58da751726006d48334d6164ef7d
parent3ff2e42970584ad66f8b8e353ddce86dbea92baf (diff)
Fixed bug with triply nested maps and polymorphism (reported as Item # 10218).
-rw-r--r--Source/Core/AbsyCmd.cs2
-rw-r--r--Test/aitest9/TestIntervals.bpl16
-rw-r--r--Test/aitest9/answer2
3 files changed, 18 insertions, 2 deletions
diff --git a/Source/Core/AbsyCmd.cs b/Source/Core/AbsyCmd.cs
index 62ebc77f..1367a08d 100644
--- a/Source/Core/AbsyCmd.cs
+++ b/Source/Core/AbsyCmd.cs
@@ -1472,7 +1472,7 @@ namespace Microsoft.Boogie {
NAryExpr/*!*/ res = Expr.Select(Map.AsExpr, Indexes);
Contract.Assert(res != null);
res.TypeParameters = this.TypeParameters;
- res.Type = Map.AsExpr.Type.AsMap.Result;
+ res.Type = this.Type;
return res;
}
}
diff --git a/Test/aitest9/TestIntervals.bpl b/Test/aitest9/TestIntervals.bpl
index b989e16c..bee73a57 100644
--- a/Test/aitest9/TestIntervals.bpl
+++ b/Test/aitest9/TestIntervals.bpl
@@ -22,3 +22,19 @@ procedure P()
assert -3 <= c;
assert c <= 0; // error (there was once an error in the Intervals which thought this assertion to be true)
}
+
+// The following tests a triply nested array, where the innermost array is a polymorphic map.
+// There was once an error in Boogie's handling of such things in the AI code.
+
+type ref;
+type teflon;
+
+type Field a;
+type HeapType = <a>[Field a]a;
+var Heap: HeapType;
+
+procedure Q(myField: Field [ref][teflon]bool, r: ref, t: teflon)
+ modifies Heap;
+{
+ Heap[myField][r][t] := true;
+}
diff --git a/Test/aitest9/answer b/Test/aitest9/answer
index 27e18ca4..d68508af 100644
--- a/Test/aitest9/answer
+++ b/Test/aitest9/answer
@@ -18,4 +18,4 @@ Execution trace:
TestIntervals.bpl(14,14): anon12_Then
TestIntervals.bpl(17,5): anon8
-Boogie program verifier finished with 0 verified, 1 error
+Boogie program verifier finished with 1 verified, 1 error