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address divergence in the case of shared theory symbols. Codeplex issue 147, thanks to George Karpenkov

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-12-09 16:04:25 +01:00
commit 08cb8b8de8
74 changed files with 1280 additions and 896 deletions
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20
src/muz/fp/dl_cmds.cpp
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@ -100,7 +100,7 @@ struct dl_context {
dlctx().set_predicate_representation(pred, num_kinds, kinds);
}
void add_rule(expr * rule, symbol const& name) {
void add_rule(expr * rule, symbol const& name, unsigned bound) {
init();
if (m_collected_cmds) {
expr_ref rl = m_context->bind_vars(rule, true);
@ -110,7 +110,7 @@ struct dl_context {
m_trail.push(push_back_vector<dl_context, svector<symbol> >(m_collected_cmds->m_names));
}
else {
m_context->add_rule(rule, name);
m_context->add_rule(rule, name, bound);
}
}
@ -151,19 +151,22 @@ class dl_rule_cmd : public cmd {
mutable unsigned m_arg_idx;
expr* m_t;
symbol m_name;
unsigned m_bound;
public:
dl_rule_cmd(dl_context * dl_ctx):
cmd("rule"),
m_dl_ctx(dl_ctx),
m_arg_idx(0),
m_t(0) {}
virtual char const * get_usage() const { return "(forall (q) (=> (and body) head)) :optional-name"; }
m_t(0),
m_bound(UINT_MAX) {}
virtual char const * get_usage() const { return "(forall (q) (=> (and body) head)) :optional-name :optional-recursion-bound"; }
virtual char const * get_descr(cmd_context & ctx) const { return "add a Horn rule."; }
virtual unsigned get_arity() const { return VAR_ARITY; }
virtual cmd_arg_kind next_arg_kind(cmd_context & ctx) const {
switch(m_arg_idx) {
case 0: return CPK_EXPR;
case 1: return CPK_SYMBOL;
case 2: return CPK_UINT;
default: return CPK_SYMBOL;
}
}
@ -173,13 +176,18 @@ public:
}
virtual void set_next_arg(cmd_context & ctx, symbol const & s) {
m_name = s;
m_arg_idx++;
}
virtual void set_next_arg(cmd_context & ctx, unsigned bound) {
m_bound = bound;
m_arg_idx++;
}
virtual void reset(cmd_context & ctx) { m_dl_ctx->reset(); prepare(ctx); }
virtual void prepare(cmd_context& ctx) { m_arg_idx = 0; m_name = symbol::null; }
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) {
m_dl_ctx->add_rule(m_t, m_name);
m_dl_ctx->add_rule(m_t, m_name, m_bound);
}
};