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User Propagator: Return if propagated lemma is redundant (#6791)

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* Give users ability to see if propagation failed

* Skip propagations in the new core if they are already satisfied
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Clemens Eisenhofer 2023-07-07 18:58:41 +02:00 • committed by GitHub
parent f5c069f899
commit 4cb158a79b
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10 changed files with 48 additions and 31 deletions
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16
src/api/z3_api.h
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@ -7147,14 +7147,18 @@ extern "C" {
/**
\brief propagate a consequence based on fixed values.
This is a callback a client may invoke during the fixed_eh callback.
This is a callback a client may invoke during the fixed_eh callback.
The callback adds a propagation consequence based on the fixed values of the
\c ids.
def_API('Z3_solver_propagate_consequence', VOID, (_in(CONTEXT), _in(SOLVER_CALLBACK), _in(UINT), _in_array(2, AST), _in(UINT), _in_array(4, AST), _in_array(4, AST), _in(AST)))
\c ids.
The solver might discard the propagation in case it is true in the current state.
The function returns false in this case; otw. the function returns true.
At least one propagation in the final callback has to return true in order to
prevent the solver from finishing.
def_API('Z3_solver_propagate_consequence', BOOL, (_in(CONTEXT), _in(SOLVER_CALLBACK), _in(UINT), _in_array(2, AST), _in(UINT), _in_array(4, AST), _in_array(4, AST), _in(AST)))
*/
void Z3_API Z3_solver_propagate_consequence(Z3_context c, Z3_solver_callback cb, unsigned num_fixed, Z3_ast const* fixed, unsigned num_eqs, Z3_ast const* eq_lhs, Z3_ast const* eq_rhs, Z3_ast conseq);
bool Z3_API Z3_solver_propagate_consequence(Z3_context c, Z3_solver_callback cb, unsigned num_fixed, Z3_ast const* fixed, unsigned num_eqs, Z3_ast const* eq_lhs, Z3_ast const* eq_rhs, Z3_ast conseq);
/**
\brief Check whether the assertions in a given solver are consistent or not.