diff options
| author | ajreynol <andrew.j.reynolds@gmail.com> | 2017-04-28 15:48:13 -0500 |
|---|---|---|
| committer | ajreynol <andrew.j.reynolds@gmail.com> | 2017-04-28 15:48:13 -0500 |
| commit | 4a4b05fa4bc52a53a33b8eaa542c3a5e1d603b94 (patch) | |
| tree | f83d2c423dbd3e72f195ae23bf958c12ddd34c0a | |
| parent | 24385c4c5f9c17610f10ed2f8d44c10a16c1567f (diff) | |
Fix bug for real division.
| -rw-r--r-- | src/theory/arith/theory_arith_private.cpp | 8 | ||||
| -rw-r--r-- | test/regress/regress0/nl/Makefile.am | 3 | ||||
| -rw-r--r-- | test/regress/regress0/nl/real-div-ufnra.smt2 | 13 |
3 files changed, 19 insertions, 5 deletions
diff --git a/src/theory/arith/theory_arith_private.cpp b/src/theory/arith/theory_arith_private.cpp index 4f62f4451..f40e7204a 100644 --- a/src/theory/arith/theory_arith_private.cpp +++ b/src/theory/arith/theory_arith_private.cpp @@ -238,8 +238,8 @@ static Node getSkolemConstrainedToDivisionTotal( if(total_div_node.getAttribute(LinearIntDivAttr(), total_div_skolem)) { return total_div_skolem; } - total_div_skolem = nm->mkSkolem("DivisionTotalSkolem", nm->integerType(), - "the result of an intdiv-by-k term"); + total_div_skolem = nm->mkSkolem("DivisionTotalSkolem", nm->realType(), + "the result of a div term"); total_div_node.setAttribute(LinearIntDivAttr(), total_div_skolem); Node zero = mkRationalNode(0); Node lemma = den.eqNode(zero).iteNode( @@ -258,8 +258,8 @@ static Node getSkolemConstrainedToDivision( if(div_node.getAttribute(LinearIntDivAttr(), div_skolem)) { return div_skolem; } - div_skolem = nm->mkSkolem("DivisionSkolem", nm->integerType(), - "the result of an intdiv-by-k term"); + div_skolem = nm->mkSkolem("DivisionSkolem", nm->realType(), + "the result of a div term"); div_node.setAttribute(LinearIntDivAttr(), div_skolem); Node div0 = nm->mkNode(APPLY_UF, div0Func, num); Node total_div = getSkolemConstrainedToDivisionTotal(num, den, out); diff --git a/test/regress/regress0/nl/Makefile.am b/test/regress/regress0/nl/Makefile.am index 13f561130..4e350c9c8 100644 --- a/test/regress/regress0/nl/Makefile.am +++ b/test/regress/regress0/nl/Makefile.am @@ -46,7 +46,8 @@ TESTS = \ metitarski-3-4.smt2 \ rewriting-sums.smt2 \ disj-eval.smt2 \ - bug698.smt2 + bug698.smt2 \ + real-div-ufnra.smt2 # unsolved : garbage_collect.cvc diff --git a/test/regress/regress0/nl/real-div-ufnra.smt2 b/test/regress/regress0/nl/real-div-ufnra.smt2 new file mode 100644 index 000000000..5e3b32c40 --- /dev/null +++ b/test/regress/regress0/nl/real-div-ufnra.smt2 @@ -0,0 +1,13 @@ +; COMMAND-LINE: --nl-ext --simplification=none +; EXPECT: sat +(set-logic QF_UFNRA) +(set-info :status unsat) +(declare-fun x () Real) +(declare-fun y () Real) +(declare-fun f (Real) Real) + +(assert (= (f x) 0.2)) +(assert (= (f y) 0.4)) +(assert (= (/ (f x) (f y)) 0.5)) + +(check-sat) |