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adding trail/levels

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-01-29 14:45:51 -08:00
parent e22c657811
commit 8d20310758
21 changed files with 199 additions and 7 deletions
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16
src/api/z3_api.h
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@ -6213,6 +6213,13 @@ extern "C" {
*/
Z3_ast_vector Z3_API Z3_solver_get_units(Z3_context c, Z3_solver s);
/**
\brief Return the trail modulo model conversion, in order of decision level
The decision level can be retrieved using \c Z3_solver_get_level based on the trail.
def_API('Z3_solver_get_trail', AST_VECTOR, (_in(CONTEXT), _in(SOLVER)))
*/
Z3_ast_vector Z3_API Z3_solver_get_trail(Z3_context c, Z3_solver s);
/**
\brief Return the set of non units in the solver state.
@ -6221,6 +6228,15 @@ extern "C" {
*/
Z3_ast_vector Z3_API Z3_solver_get_non_units(Z3_context c, Z3_solver s);
/**
\brief retrieve the decision depth of Boolean literals (variables or their negations).
Assumes a check-sat call and no other calls (to extract models) have been invoked.
def_API('Z3_solver_get_levels', VOID, (_in(CONTEXT), _in(SOLVER), _in(UINT), _in_array(2, AST), _in_array(2, UINT)))
*/
void Z3_API Z3_solver_get_levels(Z3_context c, Z3_solver s, unsigned sz, Z3_ast literals[], unsigned levels[]);
/**
\brief Check whether the assertions in a given solver are consistent or not.