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-rw-r--r--test/regress/regress0/sygus/inv-unused.sy13
1 files changed, 13 insertions, 0 deletions
diff --git a/test/regress/regress0/sygus/inv-unused.sy b/test/regress/regress0/sygus/inv-unused.sy
new file mode 100644
index 000000000..91ba95d39
--- /dev/null
+++ b/test/regress/regress0/sygus/inv-unused.sy
@@ -0,0 +1,13 @@
+; EXPECT: unsat
+; COMMAND-LINE: --sygus-out=status
+(set-logic LIA)
+(synth-inv inv-f ((x Int) (y Int) (b Bool)))
+(declare-primed-var x Int)
+(declare-primed-var y Int)
+(declare-primed-var b Bool)
+(define-fun pre-f ((x Int) (y Int) (b Bool)) Bool (and (>= x 5) (<= x 9)))
+(define-fun trans-f ((x Int) (y Int) (b Bool) (x! Int) (y! Int) (b! Bool)) Bool (= x! (+ x 1)))
+(define-fun post-f ((x Int) (y Int) (b Bool)) Bool (> x 0))
+(inv-constraint inv-f pre-f trans-f post-f)
+; invariant does not depend on arguments y and b
+(check-synth)
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