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Add command to set initial value hints for solver in various components

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This commit is contained in:
Nikolaj Bjorner 2024-09-18 17:48:03 +03:00
parent 1c163dbad2
commit a3f35b6830
17 changed files with 82 additions and 8 deletions
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20
src/cmd_context/basic_cmds.cpp
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@ -318,6 +318,25 @@ UNARY_CMD(echo_cmd, "echo", "<string>", "display the given string", CPK_STRING,
else
ctx.regular_stream() << arg << std::endl;);
class set_initial_value_cmd : public cmd {
expr* m_var = nullptr, *m_value = nullptr;
public:
set_initial_value_cmd(): cmd("set-initial-value") {}
char const* get_usage() const override { return "<var> <value>"; }
char const* get_descr(cmd_context& ctx) const { return "set an initial value for search as a hint to the solver"; }
unsigned get_arity() const { return 2; }
void prepare(cmd_context& ctx) { m_var = m_value = nullptr; }
cmd_arg_kind next_arg_kind(cmd_context& ctx) const { return CPK_EXPR; }
void set_next_arg(cmd_context& ctx, expr* e) { if (m_var) m_value = e; else m_var = e; }
void execute(cmd_context& ctx) {
SASSERT(m_var && m_value);
if (ctx.get_opt())
ctx.get_opt()->initialize_value(m_var, m_value);
else if (ctx.get_solver())
ctx.get_solver()->user_propagate_initialize_value(m_var, m_value);
}
};
class set_get_option_cmd : public cmd {
protected:
symbol m_true;
@ -893,6 +912,7 @@ void install_basic_cmds(cmd_context & ctx) {
ctx.insert(alloc(get_option_cmd));
ctx.insert(alloc(get_info_cmd));
ctx.insert(alloc(set_info_cmd));
ctx.insert(alloc(set_initial_value_cmd));
ctx.insert(alloc(get_consequences_cmd));
ctx.insert(alloc(builtin_cmd, "assert", "<term>", "assert term."));
ctx.insert(alloc(builtin_cmd, "check-sat", "<boolean-constants>*", "check if the current context is satisfiable. If a list of boolean constants B is provided, then check if the current context is consistent with assigning every constant in B to true."));

2
src/cmd_context/cmd_context.h
View file

@ -173,6 +173,8 @@ public:
virtual void set_logic(symbol const& s) = 0;
virtual void get_box_model(model_ref& mdl, unsigned index) = 0;
virtual void updt_params(params_ref const& p) = 0;
virtual void initialize_value(expr* var, expr* value) = 0;
};
class ast_context_params : public context_params {