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add basic built-in consequence finding

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2016-07-28 11:20:17 -07:00
parent b7de813c63
commit 14f29e7265
6 changed files with 200 additions and 13 deletions
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38
src/api/api_solver.cpp
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@ -413,4 +413,42 @@ extern "C" {
Z3_CATCH_RETURN(Z3_L_UNDEF);
}
Z3_lbool Z3_API Z3_solver_get_consequences(Z3_context c,
Z3_solver s,
Z3_ast_vector assumptions,
Z3_ast_vector variables,
Z3_ast_vector consequences) {
Z3_TRY;
LOG_Z3_solver_get_consequences(c, s, assumptions, variables, consequences);
ast_manager& m = mk_c(c)->m();
RESET_ERROR_CODE();
CHECK_SEARCHING(c);
init_solver(c, s);
expr_ref_vector _assumptions(m), _consequences(m), _variables(m);
ast_ref_vector const& __assumptions = to_ast_vector_ref(assumptions);
unsigned sz = __assumptions.size();
for (unsigned i = 0; i < sz; ++i) {
if (!is_expr(__assumptions[i])) {
SET_ERROR_CODE(Z3_INVALID_USAGE);
return Z3_L_UNDEF;
}
_assumptions.push_back(to_expr(__assumptions[i]));
}
ast_ref_vector const& __variables = to_ast_vector_ref(variables);
sz = __variables.size();
for (unsigned i = 0; i < sz; ++i) {
if (!is_expr(__variables[i])) {
SET_ERROR_CODE(Z3_INVALID_USAGE);
return Z3_L_UNDEF;
}
_variables.push_back(to_expr(__variables[i]));
}
lbool result = to_solver_ref(s)->get_consequences(_assumptions, _variables, _consequences);
for (unsigned i = 0; i < _consequences.size(); ++i) {
to_ast_vector_ref(consequences).push_back(_consequences[i].get());
}
return static_cast<Z3_lbool>(result);
Z3_CATCH_RETURN(Z3_L_UNDEF);
}
};