mirror of
https://github.com/Z3Prover/z3
synced 2025-04-08 10:25:18 +00:00
public API for spacer
This commit is contained in:
parent
c3d433ede0
commit
d080c146a2
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@ -14,6 +14,7 @@ set(Z3_API_HEADER_FILES_TO_SCAN
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z3_optimization.h
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z3_interp.h
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z3_fpa.h
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z3_spacer.h
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)
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set(Z3_FULL_PATH_API_HEADER_FILES_TO_SCAN "")
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foreach (header_file ${Z3_API_HEADER_FILES_TO_SCAN})
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@ -169,6 +170,7 @@ set (libz3_public_headers
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z3_polynomial.h
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z3_rcf.h
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z3_v1.h
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z3_spacer.h
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)
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foreach (header ${libz3_public_headers})
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set_property(TARGET libz3 APPEND PROPERTY
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@ -57,6 +57,7 @@ z3_add_component(api
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api_parsers.cpp
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api_pb.cpp
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api_polynomial.cpp
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api_qe.cpp
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api_quant.cpp
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api_rcf.cpp
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api_seq.cpp
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@ -605,5 +605,6 @@ extern "C" {
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}
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#include "api_datalog_spacer.inc"
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};
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113
src/api/api_datalog_spacer.inc
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113
src/api/api_datalog_spacer.inc
Normal file
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@ -0,0 +1,113 @@
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/*++
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Copyright (c) 2017 Arie Gurfinkel
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Module Name:
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api_datalog_spacer.inc
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Abstract:
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Spacer-specific datalog API
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Author:
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Arie Gurfinkel (arie)
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Notes:
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this file is included at the bottom of api_datalog.cpp
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--*/
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Z3_lbool Z3_API Z3_fixedpoint_query_from_lvl (Z3_context c, Z3_fixedpoint d, Z3_ast q, unsigned lvl) {
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Z3_TRY;
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LOG_Z3_fixedpoint_query_from_lvl (c, d, q, lvl);
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RESET_ERROR_CODE();
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lbool r = l_undef;
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unsigned timeout = to_fixedpoint(d)->m_params.get_uint("timeout", mk_c(c)->get_timeout());
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unsigned rlimit = to_fixedpoint(d)->m_params.get_uint("rlimit", mk_c(c)->get_rlimit());
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{
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scoped_rlimit _rlimit(mk_c(c)->m().limit(), rlimit);
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cancel_eh<reslimit> eh(mk_c(c)->m().limit());
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api::context::set_interruptable si(*(mk_c(c)), eh);
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scoped_timer timer(timeout, &eh);
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try {
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r = to_fixedpoint_ref(d)->ctx().query_from_lvl (to_expr(q), lvl);
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}
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catch (z3_exception& ex) {
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mk_c(c)->handle_exception(ex);
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r = l_undef;
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}
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to_fixedpoint_ref(d)->ctx().cleanup();
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}
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return of_lbool(r);
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Z3_CATCH_RETURN(Z3_L_UNDEF);
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}
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Z3_ast Z3_API Z3_fixedpoint_get_ground_sat_answer(Z3_context c, Z3_fixedpoint d) {
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Z3_TRY;
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LOG_Z3_fixedpoint_get_ground_sat_answer(c, d);
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RESET_ERROR_CODE();
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expr* e = to_fixedpoint_ref(d)->ctx().get_ground_sat_answer();
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mk_c(c)->save_ast_trail(e);
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RETURN_Z3(of_expr(e));
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Z3_CATCH_RETURN(0);
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}
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Z3_ast_vector Z3_API Z3_fixedpoint_get_rules_along_trace(
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Z3_context c,
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Z3_fixedpoint d)
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{
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Z3_TRY;
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LOG_Z3_fixedpoint_get_rules_along_trace(c, d);
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ast_manager& m = mk_c(c)->m();
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Z3_ast_vector_ref* v = alloc(Z3_ast_vector_ref, *mk_c(c), m);
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mk_c(c)->save_object(v);
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expr_ref_vector rules(m);
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svector<symbol> names;
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to_fixedpoint_ref(d)->ctx().get_rules_along_trace_as_formulas(rules, names);
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for (unsigned i = 0; i < rules.size(); ++i) {
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v->m_ast_vector.push_back(rules[i].get());
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}
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RETURN_Z3(of_ast_vector(v));
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Z3_CATCH_RETURN(0);
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}
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Z3_symbol Z3_API Z3_fixedpoint_get_rule_names_along_trace(
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Z3_context c,
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Z3_fixedpoint d)
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{
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Z3_TRY;
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LOG_Z3_fixedpoint_get_rule_names_along_trace(c, d);
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ast_manager& m = mk_c(c)->m();
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Z3_ast_vector_ref* v = alloc(Z3_ast_vector_ref, *mk_c(c), m);
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mk_c(c)->save_object(v);
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expr_ref_vector rules(m);
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svector<symbol> names;
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std::stringstream ss;
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to_fixedpoint_ref(d)->ctx().get_rules_along_trace_as_formulas(rules, names);
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for (unsigned i = 0; i < names.size(); ++i) {
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ss << ";" << names[i].str();
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}
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RETURN_Z3(of_symbol(symbol(ss.str().substr(1).c_str())));
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Z3_CATCH_RETURN(0);
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}
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void Z3_API Z3_fixedpoint_add_invariant(Z3_context c, Z3_fixedpoint d, Z3_func_decl pred, Z3_ast property) {
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Z3_TRY;
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LOG_Z3_fixedpoint_add_invariant(c, d, pred, property);
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RESET_ERROR_CODE();
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to_fixedpoint_ref(d)->ctx ().add_invariant(to_func_decl(pred), to_expr(property));
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Z3_CATCH;
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}
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Z3_ast Z3_API Z3_fixedpoint_get_reachable(Z3_context c, Z3_fixedpoint d, Z3_func_decl pred) {
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Z3_TRY;
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LOG_Z3_fixedpoint_get_reachable(c, d, pred);
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RESET_ERROR_CODE();
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expr_ref r = to_fixedpoint_ref(d)->ctx().get_reachable(to_func_decl(pred));
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mk_c(c)->save_ast_trail(r);
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RETURN_Z3(of_expr(r.get()));
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Z3_CATCH_RETURN(0);
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}
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179
src/api/api_qe.cpp
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179
src/api/api_qe.cpp
Normal file
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@ -0,0 +1,179 @@
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/*++
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Copyright (c) 2017 Arie Gurfinkel
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Module Name:
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api_qe.cpp
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Abstract:
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Model-based Projection (MBP) and Quantifier Elimination (QE) API
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Author:
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Arie Gurfinkel (arie)
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Notes:
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--*/
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#include <iostream>
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#include "z3.h"
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#include "api_log_macros.h"
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#include "api_context.h"
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#include "api_util.h"
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#include "api_model.h"
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#include "api_ast_map.h"
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#include "api_ast_vector.h"
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#include "qe_vartest.h"
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#include "qe_lite.h"
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#include "spacer_util.h"
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#include "expr_map.h"
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extern "C"
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{
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Z3_ast Z3_API Z3_qe_model_project (Z3_context c,
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Z3_model m,
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unsigned num_bounds,
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Z3_app const bound[],
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Z3_ast body)
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{
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Z3_TRY;
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LOG_Z3_qe_model_project (c, m, num_bounds, bound, body);
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RESET_ERROR_CODE();
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app_ref_vector vars(mk_c(c)->m ());
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for (unsigned i = 0; i < num_bounds; ++i)
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{
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app *a = to_app (bound [i]);
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if (a->get_kind () != AST_APP)
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{
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SET_ERROR_CODE (Z3_INVALID_ARG);
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RETURN_Z3(0);
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}
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vars.push_back (a);
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}
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expr_ref result (mk_c(c)->m ());
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result = to_expr (body);
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model_ref model (to_model_ref (m));
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spacer::qe_project (mk_c(c)->m (), vars, result, model);
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mk_c(c)->save_ast_trail (result.get ());
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return of_expr (result.get ());
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Z3_CATCH_RETURN(0);
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}
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Z3_ast Z3_API Z3_qe_model_project_skolem (Z3_context c,
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Z3_model m,
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unsigned num_bounds,
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Z3_app const bound[],
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Z3_ast body,
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Z3_ast_map map)
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{
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Z3_TRY;
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LOG_Z3_qe_model_project_skolem (c, m, num_bounds, bound, body, map);
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RESET_ERROR_CODE();
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ast_manager& man = mk_c(c)->m ();
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app_ref_vector vars(man);
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for (unsigned i = 0; i < num_bounds; ++i)
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{
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app *a = to_app (bound [i]);
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if (a->get_kind () != AST_APP)
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{
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SET_ERROR_CODE (Z3_INVALID_ARG);
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RETURN_Z3(0);
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}
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vars.push_back (a);
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}
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expr_ref result (mk_c(c)->m ());
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result = to_expr (body);
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model_ref model (to_model_ref (m));
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expr_map emap (man);
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spacer::qe_project (mk_c(c)->m (), vars, result, model, emap);
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mk_c(c)->save_ast_trail (result.get ());
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obj_map<ast, ast*> &map_z3 = to_ast_map_ref(map);
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for (expr_map::iterator it = emap.begin(), end = emap.end(); it != end; ++it){
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man.inc_ref(&(it->get_key()));
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man.inc_ref(it->get_value());
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map_z3.insert(&(it->get_key()), it->get_value());
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}
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return of_expr (result.get ());
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Z3_CATCH_RETURN(0);
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}
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Z3_ast Z3_API Z3_model_extrapolate (Z3_context c,
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Z3_model m,
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Z3_ast fml)
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{
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Z3_TRY;
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LOG_Z3_model_extrapolate (c, m, fml);
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RESET_ERROR_CODE();
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model_ref model (to_model_ref (m));
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expr_ref_vector facts (mk_c(c)->m ());
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facts.push_back (to_expr (fml));
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flatten_and (facts);
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spacer::model_evaluator_util mev (mk_c(c)->m());
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mev.set_model (*model);
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expr_ref_vector lits (mk_c(c)->m());
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spacer::compute_implicant_literals (mev, facts, lits);
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expr_ref result (mk_c(c)->m ());
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result = mk_and (lits);
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mk_c(c)->save_ast_trail (result.get ());
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return of_expr (result.get ());
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Z3_CATCH_RETURN(0);
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}
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Z3_ast Z3_API Z3_qe_lite (Z3_context c, Z3_ast_vector vars, Z3_ast body)
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{
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Z3_TRY;
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LOG_Z3_qe_lite (c, vars, body);
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RESET_ERROR_CODE();
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ast_ref_vector &vVars = to_ast_vector_ref (vars);
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app_ref_vector vApps (mk_c(c)->m());
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for (unsigned i = 0; i < vVars.size (); ++i)
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{
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app *a = to_app (vVars.get (i));
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if (a->get_kind () != AST_APP)
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{
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SET_ERROR_CODE (Z3_INVALID_ARG);
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RETURN_Z3(0);
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}
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vApps.push_back (a);
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}
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expr_ref result (mk_c(c)->m ());
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result = to_expr (body);
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params_ref p;
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qe_lite qe (mk_c(c)->m (), p);
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qe (vApps, result);
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// -- copy back variables that were not eliminated
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if (vApps.size () < vVars.size ())
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{
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vVars.reset ();
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for (unsigned i = 0; i < vApps.size (); ++i)
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vVars.push_back (vApps.get (i));
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}
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mk_c(c)->save_ast_trail (result.get ());
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return of_expr (result);
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Z3_CATCH_RETURN(0);
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}
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}
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@ -33,5 +33,6 @@ Notes:
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#include "api/z3_interp.h"
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#include "api/z3_fpa.h"
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#include"z3_spacer.h"
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#endif
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143
src/api/z3_spacer.h
Normal file
143
src/api/z3_spacer.h
Normal file
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@ -0,0 +1,143 @@
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/*++
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Copyright (c) 2017 Arie Gurfinkel
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Module Name:
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z3_spacer.h
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Abstract:
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Spacer API
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Author:
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Arie Gurfinkel (arie)
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Notes:
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--*/
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#ifndef Z3_SPACER_H_
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#define Z3_SPACER_H_
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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/** \defgroup capi C API */
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/*@{*/
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/** @name Spacer facilities */
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/*@{*/
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/**
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\brief Pose a query against the asserted rules at the given level.
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\code
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query ::= (exists (bound-vars) query)
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| literals
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\endcode
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query returns
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- Z3_L_FALSE if the query is unsatisfiable.
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- Z3_L_TRUE if the query is satisfiable. Obtain the answer by calling #Z3_fixedpoint_get_answer.
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- Z3_L_UNDEF if the query was interrupted, timed out or otherwise failed.
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def_API('Z3_fixedpoint_query_from_lvl', INT, (_in(CONTEXT), _in(FIXEDPOINT), _in(AST), _in(UINT)))
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*/
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Z3_lbool Z3_API Z3_fixedpoint_query_from_lvl (Z3_context c,Z3_fixedpoint d, Z3_ast query, unsigned lvl);
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/**
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\brief Retrieve a bottom-up (from query) sequence of ground facts
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The previous call to Z3_fixedpoint_query must have returned Z3_L_TRUE.
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def_API('Z3_fixedpoint_get_ground_sat_answer', AST, (_in(CONTEXT), _in(FIXEDPOINT)))
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*/
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Z3_ast Z3_API Z3_fixedpoint_get_ground_sat_answer(Z3_context c,Z3_fixedpoint d);
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/**
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\brief Obtain the list of rules along the counterexample trace.
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def_API('Z3_fixedpoint_get_rules_along_trace', AST_VECTOR, (_in(CONTEXT), _in(FIXEDPOINT)))
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*/
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Z3_ast_vector Z3_API Z3_fixedpoint_get_rules_along_trace(Z3_context c,Z3_fixedpoint d);
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/**
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\brief Obtain the list of rules along the counterexample trace.
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def_API('Z3_fixedpoint_get_rule_names_along_trace', SYMBOL, (_in(CONTEXT), _in(FIXEDPOINT)))
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*/
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Z3_symbol Z3_API Z3_fixedpoint_get_rule_names_along_trace(Z3_context c,Z3_fixedpoint d);
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/**
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\brief Add an invariant for the predicate \c pred.
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Add an assumed invariant of predicate \c pred.
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Note: this functionality is Spacer specific.
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def_API('Z3_fixedpoint_add_invariant', VOID, (_in(CONTEXT), _in(FIXEDPOINT), _in(FUNC_DECL), _in(AST)))
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*/
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void Z3_API Z3_fixedpoint_add_invariant(Z3_context c, Z3_fixedpoint d, Z3_func_decl pred, Z3_ast property);
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/**
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Retrieve reachable states of a predicate.
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Note: this functionality is Spacer specific.
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||||
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def_API('Z3_fixedpoint_get_reachable', AST, (_in(CONTEXT), _in(FIXEDPOINT), _in(FUNC_DECL)))
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*/
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Z3_ast Z3_API Z3_fixedpoint_get_reachable(Z3_context c, Z3_fixedpoint d, Z3_func_decl pred);
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/**
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\brief Project variables given a model
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def_API('Z3_qe_model_project', AST, (_in(CONTEXT), _in(MODEL), _in(UINT), _in_array(2, APP), _in(AST)))
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*/
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Z3_ast Z3_API Z3_qe_model_project
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(Z3_context c,
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Z3_model m,
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unsigned num_bounds,
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Z3_app const bound[],
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||||
Z3_ast body);
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|
||||
|
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/**
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\brief Project variables given a model
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||||
|
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def_API('Z3_qe_model_project_skolem', AST, (_in(CONTEXT), _in(MODEL), _in(UINT), _in_array(2, APP), _in(AST), _in(AST_MAP)))
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*/
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Z3_ast Z3_API Z3_qe_model_project_skolem
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(Z3_context c,
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Z3_model m,
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||||
unsigned num_bounds,
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||||
Z3_app const bound[],
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||||
Z3_ast body,
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||||
Z3_ast_map map);
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||||
/**
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\brief Extrapolates a model of a formula
|
||||
|
||||
def_API('Z3_model_extrapolate', AST, (_in(CONTEXT), _in(MODEL), _in(AST)))
|
||||
*/
|
||||
Z3_ast Z3_API Z3_model_extrapolate
|
||||
(Z3_context c,
|
||||
Z3_model m,
|
||||
Z3_ast fml);
|
||||
|
||||
/**
|
||||
\brief Best-effort quantifier elimination
|
||||
|
||||
def_API ('Z3_qe_lite', AST, (_in(CONTEXT), _in(AST_VECTOR), _in(AST)))
|
||||
*/
|
||||
Z3_ast Z3_qe_lite
|
||||
(Z3_context c,
|
||||
Z3_ast_vector vars,
|
||||
Z3_ast body);
|
||||
|
||||
/*@}*/
|
||||
/*@}*/
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif // __cplusplus
|
||||
|
||||
#endif
|
Loading…
Reference in a new issue