1 files changed, 9 insertions, 0 deletions
diff --git a/Test/dafny0/IndexIntoUpdate.dfy b/Test/dafny0/IndexIntoUpdate.dfy
new file mode 100644
index 00000000..01359e04
--- /dev/null
+++ b/Test/dafny0/IndexIntoUpdate.dfy
@@ -0,0 +1,9 @@
+// RUN: %dafny /compile:0 /print:"%t.print" /dprint:"%t.dprint" "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+method M()  {
+  var s := [1, 2, 3, 4];
+  assert 3 in s;
+  s := s[0 := 1];
+  if * { assert 3 in s; } // FIXME: This should verify
+  else { assert s[2] == 3; assert 3 in s; }
+}