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Corrected unspecified behavior of fp.min/fp.max corner cases in fpa2bv_converter and in theory_fpa.

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Fixes #68
This commit is contained in:
Christoph M. Wintersteiger 2015-10-07 20:29:36 +01:00
parent 8a026c355f
commit de39173f6f
7 changed files with 90 additions and 20 deletions
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6
src/ast/fpa/fpa2bv_converter.h
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@ -137,8 +137,10 @@ public:
void mk_to_real(func_decl * f, unsigned num, expr * const * args, expr_ref & result);
void set_unspecified_fp_hi(bool v) { m_hi_fp_unspecified = v; }
expr_ref mk_min_unspecified(func_decl * f, expr * x, expr * y);
expr_ref mk_max_unspecified(func_decl * f, expr * x, expr * y);
virtual expr_ref mk_min_unspecified(func_decl * f, expr * x, expr * y);
virtual expr_ref mk_max_unspecified(func_decl * f, expr * x, expr * y);
expr_ref mk_to_ubv_unspecified(unsigned width);
expr_ref mk_to_sbv_unspecified(unsigned width);
expr_ref mk_to_real_unspecified();

4
src/ast/fpa/fpa2bv_rewriter.h
View file

@ -166,8 +166,10 @@ struct fpa2bv_rewriter_cfg : public default_rewriter_cfg {
case OP_FPA_TO_SBV: m_conv.mk_to_sbv(f, num, args, result); return BR_DONE;
case OP_FPA_TO_REAL: m_conv.mk_to_real(f, num, args, result); return BR_DONE;
case OP_FPA_TO_IEEE_BV: m_conv.mk_to_ieee_bv(f, num, args, result); return BR_DONE;
case OP_FPA_INTERNAL_MIN_UNSPECIFIED: result = m_conv.mk_min_unspecified(f, args[0], args[1]); return BR_DONE;
case OP_FPA_INTERNAL_MAX_UNSPECIFIED: result = m_conv.mk_max_unspecified(f, args[0], args[1]); return BR_DONE;
case OP_FPA_INTERNAL_BVWRAP:
case OP_FPA_INTERNAL_BVUNWRAP:
case OP_FPA_INTERNAL_BVUNWRAP:
case OP_FPA_INTERNAL_TO_REAL_UNSPECIFIED:
case OP_FPA_INTERNAL_TO_UBV_UNSPECIFIED:
case OP_FPA_INTERNAL_TO_SBV_UNSPECIFIED: return BR_FAILED;