diff options
| -rw-r--r-- | src/theory/quantifiers/sygus/sygus_abduct.cpp | 6 | ||||
| -rw-r--r-- | test/regress/CMakeLists.txt | 1 | ||||
| -rw-r--r-- | test/regress/regress1/abduct-dt.smt2 | 8 |
3 files changed, 15 insertions, 0 deletions
diff --git a/src/theory/quantifiers/sygus/sygus_abduct.cpp b/src/theory/quantifiers/sygus/sygus_abduct.cpp index a58c5d841..22b56eb6b 100644 --- a/src/theory/quantifiers/sygus/sygus_abduct.cpp +++ b/src/theory/quantifiers/sygus/sygus_abduct.cpp @@ -58,6 +58,12 @@ Node SygusAbduct::mkAbductionConjecture(const std::string& name, for (const Node& s : symset) { TypeNode tn = s.getType(); + if (tn.isConstructor() || tn.isSelector() || tn.isTester()) + { + // datatype symbols should be considered interpreted symbols here, not + // (higher-order) variables. + continue; + } // Notice that we allow for non-first class (e.g. function) variables here. // This is applicable to the case where we are doing get-abduct in a logic // with UF. diff --git a/test/regress/CMakeLists.txt b/test/regress/CMakeLists.txt index 801f38b29..290fca6bc 100644 --- a/test/regress/CMakeLists.txt +++ b/test/regress/CMakeLists.txt @@ -1200,6 +1200,7 @@ set(regress_0_tests # Regression level 1 tests set(regress_1_tests + regress1/abduct-dt.smt2 regress1/arith/arith-int-004.cvc regress1/arith/arith-int-011.cvc regress1/arith/arith-int-012.cvc diff --git a/test/regress/regress1/abduct-dt.smt2 b/test/regress/regress1/abduct-dt.smt2 new file mode 100644 index 000000000..d72d15a21 --- /dev/null +++ b/test/regress/regress1/abduct-dt.smt2 @@ -0,0 +1,8 @@ +; COMMAND-LINE: --produce-abducts +; SCRUBBER: grep -v -E '(\(define-fun)' +; EXIT: 0 +(set-logic ALL) +(declare-datatypes ((List 0)) (((nil) (cons (head Int) (tail List))))) +(declare-fun x () List) +(assert (distinct x nil)) +(get-abduct A (= x (cons (head x) (tail x)))) |