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fix #1319, fix #1320

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-10-23 08:17:38 -07:00
parent 1a859d4591
commit 77bbae65f5
3 changed files with 6 additions and 2 deletions
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3
src/muz/base/dl_context.cpp
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@ -453,7 +453,8 @@ namespace datalog {
return new_pred;
}
void context::add_rule(expr* rl, symbol const& name, unsigned bound) {
void context::add_rule(expr* rl, symbol const& name, unsigned bound) {
SASSERT(rl);
m_rule_fmls.push_back(rl);
m_rule_names.push_back(name);
m_rule_bounds.push_back(bound);

3
src/muz/fp/dl_cmds.cpp
View file

@ -189,11 +189,12 @@ public:
m_bound = bound;
m_arg_idx++;
}
virtual void reset(cmd_context & ctx) { m_dl_ctx->reset(); prepare(ctx); }
virtual void reset(cmd_context & ctx) { m_dl_ctx->reset(); prepare(ctx); m_t = nullptr; }
virtual void prepare(cmd_context& ctx) { m_arg_idx = 0; m_name = symbol::null; m_bound = UINT_MAX; }
virtual void finalize(cmd_context & ctx) {
}
virtual void execute(cmd_context & ctx) {
if (!m_t) throw cmd_exception("invalid rule, expected formula");
m_dl_ctx->add_rule(m_t, m_name, m_bound);
}
};

2
src/parsers/smt2/smt2parser.cpp
View file

@ -1881,6 +1881,8 @@ namespace smt2 {
// the resultant expression is on the top of the stack
TRACE("let_frame", tout << "let result expr: " << mk_pp(expr_stack().back(), m()) << "\n";);
expr_ref r(m());
if (expr_stack().empty())
throw parser_exception("invalid let expression");
r = expr_stack().back();
expr_stack().pop_back();
// remove local declarations from the stack