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solver factories, cleanup solver API, simplified strategic solver, added combined solver

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-12-11 17:47:27 -08:00
parent bfe6678ad2
commit 8198e62cbd
22 changed files with 720 additions and 492 deletions
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37
src/api/api_solver.cpp
View file

@ -34,15 +34,15 @@ Revision History:
extern "C" {
static void init_solver_core(Z3_context c, Z3_solver _s) {
ast_manager & m = mk_c(c)->m();
Z3_solver_ref * s = to_solver(_s);
mk_c(c)->params().init_solver_params(mk_c(c)->m(), *(s->m_solver), s->m_params);
s->m_solver->init(m, s->m_logic);
s->m_initialized = true;
bool proofs_enabled, models_enabled, unsat_core_enabled;
params_ref p = s->m_params;
mk_c(c)->params().get_solver_params(mk_c(c)->m(), p, proofs_enabled, models_enabled, unsat_core_enabled);
s->m_solver = (*(s->m_solver_factory))(mk_c(c)->m(), p, proofs_enabled, models_enabled, unsat_core_enabled, s->m_logic);
}
static void init_solver(Z3_context c, Z3_solver s) {
if (!to_solver(s)->m_initialized)
if (to_solver(s)->m_solver.get() == 0)
init_solver_core(c, s);
}
@ -50,8 +50,7 @@ extern "C" {
Z3_TRY;
LOG_Z3_mk_simple_solver(c);
RESET_ERROR_CODE();
Z3_solver_ref * s = alloc(Z3_solver_ref);
s->m_solver = mk_smt_solver();
Z3_solver_ref * s = alloc(Z3_solver_ref, mk_smt_solver_factory());
mk_c(c)->save_object(s);
Z3_solver r = of_solver(s);
RETURN_Z3(r);
@ -62,8 +61,7 @@ extern "C" {
Z3_TRY;
LOG_Z3_mk_solver(c);
RESET_ERROR_CODE();
Z3_solver_ref * s = alloc(Z3_solver_ref);
s->m_solver = mk_smt_strategic_solver();
Z3_solver_ref * s = alloc(Z3_solver_ref, mk_smt_strategic_solver_factory());
mk_c(c)->save_object(s);
Z3_solver r = of_solver(s);
RETURN_Z3(r);
@ -74,8 +72,7 @@ extern "C" {
Z3_TRY;
LOG_Z3_mk_solver_for_logic(c, logic);
RESET_ERROR_CODE();
Z3_solver_ref * s = alloc(Z3_solver_ref, to_symbol(logic));
s->m_solver = mk_smt_strategic_solver(true /* force solver to use tactics even when auto_config is disabled */);
Z3_solver_ref * s = alloc(Z3_solver_ref, mk_smt_strategic_solver_factory(to_symbol(logic)));
mk_c(c)->save_object(s);
Z3_solver r = of_solver(s);
RETURN_Z3(r);
@ -86,8 +83,7 @@ extern "C" {
Z3_TRY;
LOG_Z3_mk_solver_from_tactic(c, t);
RESET_ERROR_CODE();
Z3_solver_ref * s = alloc(Z3_solver_ref);
s->m_solver = alloc(tactic2solver, to_tactic_ref(t));
Z3_solver_ref * s = alloc(Z3_solver_ref, mk_tactic2solver_factory(to_tactic_ref(t)));
mk_c(c)->save_object(s);
Z3_solver r = of_solver(s);
RETURN_Z3(r);
@ -100,7 +96,12 @@ extern "C" {
RESET_ERROR_CODE();
std::ostringstream buffer;
param_descrs descrs;
bool initialized = to_solver(s)->m_solver.get() != 0;
if (!initialized)
init_solver(c, s);
to_solver_ref(s)->collect_param_descrs(descrs);
if (!initialized)
to_solver(s)->m_solver = 0;
descrs.display(buffer);
return mk_c(c)->mk_external_string(buffer.str());
Z3_CATCH_RETURN("");
@ -112,7 +113,12 @@ extern "C" {
RESET_ERROR_CODE();
Z3_param_descrs_ref * d = alloc(Z3_param_descrs_ref);
mk_c(c)->save_object(d);
bool initialized = to_solver(s)->m_solver.get() != 0;
if (!initialized)
init_solver(c, s);
to_solver_ref(s)->collect_param_descrs(d->m_descrs);
if (!initialized)
to_solver(s)->m_solver = 0;
Z3_param_descrs r = of_param_descrs(d);
RETURN_Z3(r);
Z3_CATCH_RETURN(0);
@ -122,7 +128,7 @@ extern "C" {
Z3_TRY;
LOG_Z3_solver_set_params(c, s, p);
RESET_ERROR_CODE();
if (to_solver(s)->m_initialized) {
if (to_solver(s)->m_solver) {
bool old_model = to_solver(s)->m_params.get_bool("model", true);
bool new_model = to_param_ref(p).get_bool("model", true);
if (old_model != new_model)
@ -176,8 +182,7 @@ extern "C" {
Z3_TRY;
LOG_Z3_solver_reset(c, s);
RESET_ERROR_CODE();
to_solver_ref(s)->reset();
to_solver(s)->m_initialized = false;
to_solver(s)->m_solver = 0;
Z3_CATCH;
}

15
src/api/api_solver.h
View file

@ -22,17 +22,16 @@ Revision History:
#include"solver.h"
struct Z3_solver_ref : public api::object {
solver * m_solver;
params_ref m_params;
bool m_initialized;
symbol m_logic;
Z3_solver_ref():m_solver(0), m_initialized(false), m_logic(symbol::null) {}
Z3_solver_ref(symbol const & logic):m_solver(0), m_initialized(false), m_logic(logic) {}
virtual ~Z3_solver_ref() { dealloc(m_solver); }
scoped_ptr<solver_factory> m_solver_factory;
ref<solver> m_solver;
params_ref m_params;
symbol m_logic;
Z3_solver_ref(solver_factory * f):m_solver_factory(f), m_solver(0), m_logic(symbol::null) {}
virtual ~Z3_solver_ref() {}
};
inline Z3_solver_ref * to_solver(Z3_solver s) { return reinterpret_cast<Z3_solver_ref *>(s); }
inline Z3_solver of_solver(Z3_solver_ref * s) { return reinterpret_cast<Z3_solver>(s); }
inline solver * to_solver_ref(Z3_solver s) { return to_solver(s)->m_solver; }
inline solver * to_solver_ref(Z3_solver s) { return to_solver(s)->m_solver.get(); }
#endif