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testing inc-sat solver

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2014-07-30 17:49:51 -07:00
parent bfc0af7820
commit 365f05b41a
4 changed files with 26 additions and 11 deletions
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16
src/opt/inc_sat_solver.cpp
View file

@ -27,6 +27,8 @@ class inc_sat_solver : public solver {
tactic_ref m_preprocess; tactic_ref m_preprocess;
statistics m_stats; statistics m_stats;
unsigned m_num_scopes; unsigned m_num_scopes;
sat::literal_vector m_asms;
typedef obj_map<expr, sat::literal> dep2asm_t; typedef obj_map<expr, sat::literal> dep2asm_t;
public: public:
@ -96,10 +98,10 @@ public:
} }
g = result[0]; g = result[0];
TRACE("opt", g->display_with_dependencies(tout);); TRACE("opt", g->display_with_dependencies(tout););
m_goal2sat(*g, m_params, m_solver, m_map, dep2asm); m_goal2sat(*g, m_params, m_solver, m_map, dep2asm, true);
} }
extract_assumptions(dep2asm, m_asms);
lbool r = m_solver.check(); lbool r = m_solver.check(m_asms.size(), m_asms.c_ptr());
switch (r) { switch (r) {
case l_true: case l_true:
extract_model(); extract_model();
@ -178,6 +180,14 @@ public:
private: private:
void extract_assumptions(dep2asm_t& dep2asm, sat::literal_vector& asms) {
asms.reset();
dep2asm_t::iterator it = dep2asm.begin(), end = dep2asm.end();
for (; it != end; ++it) {
asms.push_back(it->m_value);
}
}
void extract_core(dep2asm_t& dep2asm) { void extract_core(dep2asm_t& dep2asm) {
u_map<expr*> asm2dep; u_map<expr*> asm2dep;
dep2asm_t::iterator it = dep2asm.begin(), end = dep2asm.end(); dep2asm_t::iterator it = dep2asm.begin(), end = dep2asm.end();

7
src/sat/sat_solver.cpp
View file

@ -696,7 +696,7 @@ namespace sat {
// ----------------------- // -----------------------
lbool solver::check(unsigned num_lits, literal const* lits) { lbool solver::check(unsigned num_lits, literal const* lits) {
pop_to_base_level(); pop_to_base_level();
IF_VERBOSE(2, verbose_stream() << "(sat.sat-solver using the efficient SAT solver)\n";); IF_VERBOSE(2, verbose_stream() << "(sat.sat-solver)\n";);
SASSERT(scope_lvl() == 0); SASSERT(scope_lvl() == 0);
#ifdef CLONE_BEFORE_SOLVING #ifdef CLONE_BEFORE_SOLVING
if (m_mc.empty()) { if (m_mc.empty()) {
@ -875,7 +875,10 @@ namespace sat {
m_assumption_set.reset(); m_assumption_set.reset();
push(); push();
TRACE("sat", display(tout);); TRACE("sat",
for (unsigned i = 0; i < num_lits; ++i)
tout << lits[i] << " ";
tout << "\n";);
#define _INSERT_LIT(_l_) \ #define _INSERT_LIT(_l_) \
SASSERT(is_external((_l_).var())); \ SASSERT(is_external((_l_).var())); \
m_assumption_set.insert(_l_); \ m_assumption_set.insert(_l_); \

12
src/sat/tactic/goal2sat.cpp
View file

@ -59,13 +59,15 @@ struct goal2sat::imp {
unsigned long long m_max_memory; unsigned long long m_max_memory;
volatile bool m_cancel; volatile bool m_cancel;
expr_ref_vector m_trail; expr_ref_vector m_trail;
bool m_default_external;
imp(ast_manager & _m, params_ref const & p, sat::solver & s, atom2bool_var & map, dep2asm_map& dep2asm): imp(ast_manager & _m, params_ref const & p, sat::solver & s, atom2bool_var & map, dep2asm_map& dep2asm, bool default_external):
m(_m), m(_m),
m_solver(s), m_solver(s),
m_map(map), m_map(map),
m_dep2asm(dep2asm), m_dep2asm(dep2asm),
m_trail(m) { m_trail(m),
m_default_external(default_external) {
updt_params(p); updt_params(p);
m_cancel = false; m_cancel = false;
m_true = sat::null_bool_var; m_true = sat::null_bool_var;
@ -121,7 +123,7 @@ struct goal2sat::imp {
l = sat::literal(mk_true(), !sign); l = sat::literal(mk_true(), !sign);
} }
else { else {
bool ext = !is_uninterp_const(t) || m_interface_vars.contains(t); bool ext = m_default_external || !is_uninterp_const(t) || m_interface_vars.contains(t);
sat::bool_var v = m_solver.mk_var(ext); sat::bool_var v = m_solver.mk_var(ext);
m_map.insert(t, v); m_map.insert(t, v);
l = sat::literal(v, sign); l = sat::literal(v, sign);
@ -486,8 +488,8 @@ struct goal2sat::scoped_set_imp {
} }
}; };
void goal2sat::operator()(goal const & g, params_ref const & p, sat::solver & t, atom2bool_var & m, dep2asm_map& dep2asm) { void goal2sat::operator()(goal const & g, params_ref const & p, sat::solver & t, atom2bool_var & m, dep2asm_map& dep2asm, bool default_external) {
imp proc(g.m(), p, t, m, dep2asm); imp proc(g.m(), p, t, m, dep2asm, default_external);
scoped_set_imp set(this, &proc); scoped_set_imp set(this, &proc);
proc(g); proc(g);
} }

2
src/sat/tactic/goal2sat.h
View file

@ -57,7 +57,7 @@ public:
\warning conversion throws a tactic_exception, if it is interrupted (by set_cancel), \warning conversion throws a tactic_exception, if it is interrupted (by set_cancel),
an unsupported operator is found, or memory consumption limit is reached (set with param :max-memory). an unsupported operator is found, or memory consumption limit is reached (set with param :max-memory).
*/ */
void operator()(goal const & g, params_ref const & p, sat::solver & t, atom2bool_var & m, dep2asm_map& dep2asm); void operator()(goal const & g, params_ref const & p, sat::solver & t, atom2bool_var & m, dep2asm_map& dep2asm, bool default_external = false);
void set_cancel(bool f); void set_cancel(bool f);
}; };