Merge branch 'dfsg_free'

1 files changed, 23 insertions, 0 deletions

diff --git a/Test/unnecessaryassumes/unnecessaryassumes1.bpl b/Test/unnecessaryassumes/unnecessaryassumes1.bpl
new file mode 100644
index 00000000..04226dfd
--- /dev/null
+++ b/Test/unnecessaryassumes/unnecessaryassumes1.bpl
@@ -0,0 +1,23 @@
+// RUN: %boogie /printNecessaryAssumes "%s" > "%t"
+// RUN: %diff "%s.expect" "%t"
+
+procedure test0(n: int)
+{
+    assume {:id "s0"} 0 < n;
+    assert 0 <= n;  // verified under s0
+}
+
+procedure test1(n: int)
+{
+    assume 0 < n;
+    assume {:id "s1"} n == 3;
+    assert 0 <= n;  // verified under true
+}
+
+procedure test2(n: int)
+{
+    assume 0 < n;
+    assume {:id "s2"} n <= 42;
+    assume {:id "s3"} 42 <= n;
+    assert n == 42;  // verified under s2 and s3
+}