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expose bounds as vector expressions instead of containing ad-hoc expressions. Issue #911

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
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Nikolaj Bjorner 2017-02-24 11:07:40 -08:00
parent e744d0f271
commit e02160c674
11 changed files with 158 additions and 4 deletions
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27
src/api/z3_optimization.h
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@ -186,6 +186,33 @@ extern "C" {
*/
Z3_ast Z3_API Z3_optimize_get_upper(Z3_context c, Z3_optimize o, unsigned idx);
/**
\brief Retrieve lower bound value or approximation for the i'th optimization objective.
The returned vector is of length 3. It always contains numerals.
The three numerals are coefficients a, b, c and encode the result of \c Z3_optimize_get_lower
a * infinity + b + c * epsilon.
\param c - context
\param o - optimization context
\param idx - index of optimization objective
def_API('Z3_optimize_get_lower_as_vector', AST_VECTOR, (_in(CONTEXT), _in(OPTIMIZE), _in(UINT)))
*/
Z3_ast_vector Z3_API Z3_optimize_get_lower_as_vector(Z3_context c, Z3_optimize o, unsigned idx);
/**
\brief Retrieve upper bound value or approximation for the i'th optimization objective.
\param c - context
\param o - optimization context
\param idx - index of optimization objective
def_API('Z3_optimize_get_upper_as_vector', AST_VECTOR, (_in(CONTEXT), _in(OPTIMIZE), _in(UINT)))
*/
Z3_ast_vector Z3_API Z3_optimize_get_upper_as_vector(Z3_context c, Z3_optimize o, unsigned idx);
/**
\brief Print the current context as a string.
\param c - context.