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z3/lib/well_sorted.cpp
Leonardo de Moura e9eab22e5c Z3 sources
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2012-10-02 11:35:25 -07:00

84 lines
2.6 KiB
C++

/*++
Copyright (c) 2006 Microsoft Corporation
Module Name:
well_sorted.cpp
Abstract:
<abstract>
Author:
Leonardo de Moura (leonardo) 2007-12-29.
Revision History:
--*/
#include<sstream>
#include"for_each_expr.h"
#include"well_sorted.h"
#include"ast_ll_pp.h"
#include"ast_pp.h"
#include"warning.h"
#include"ast_smt2_pp.h"
struct well_sorted_proc {
ast_manager & m_manager;
bool m_error;
well_sorted_proc(ast_manager & m):m_manager(m), m_error(false) {}
void operator()(var * v) {}
void operator()(quantifier * n) {
expr const * e = n->get_expr();
if (!m_manager.is_bool(e)) {
warning_msg("quantifier's body must be a boolean.");
m_error = true;
}
}
void operator()(app * n) {
unsigned num_args = n->get_num_args();
func_decl * decl = n->get_decl();
if (num_args != decl->get_arity() && !decl->is_associative()) {
TRACE("ws", tout << "unexpected number of arguments.\n" << mk_ismt2_pp(n, m_manager););
warning_msg("unexpected number of arguments.");
m_error = true;
return;
}
for (unsigned i = 0; i < num_args; i++) {
sort * actual_sort = m_manager.get_sort(n->get_arg(i));
sort * expected_sort = decl->is_associative() ? decl->get_domain(0) : decl->get_domain(i);
if (expected_sort != actual_sort) {
TRACE("tc", tout << "sort mismatch on argument #" << i << ".\n" << mk_ismt2_pp(n, m_manager);
tout << "Sort mismatch for argument " << i+1 << " of " << mk_ismt2_pp(n, m_manager, false) << "\n";
tout << "Expected sort: " << mk_pp(expected_sort, m_manager) << "\n";
tout << "Actual sort: " << mk_pp(actual_sort, m_manager) << "\n";
tout << "Function sort: " << mk_pp(decl, m_manager) << ".";
);
std::ostringstream strm;
strm << "Sort mismatch for argument " << i+1 << " of " << mk_ll_pp(n, m_manager, false) << "\n";
strm << "Expected sort: " << mk_pp(expected_sort, m_manager) << "\n";
strm << "Actual sort: " << mk_pp(actual_sort, m_manager) << "\n";
strm << "Function sort: " << mk_pp(decl, m_manager) << ".";
warning_msg(strm.str().c_str());
m_error = true;
return;
}
}
}
};
bool is_well_sorted(ast_manager const & m, expr * n) {
well_sorted_proc p(const_cast<ast_manager&>(m));
for_each_expr(p, n);
return !p.m_error;
}