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Added ufbv_tactic (soon to replace ufbv_strategy).

Browse source 
Renamed demodulator to ufbv_rewriter (filename and in code).

Signed-off-by: Christoph M. Wintersteiger <cwinter@microsoft.com>
This commit is contained in:
Christoph M. Wintersteiger 2012-10-24 18:28:29 +01:00
parent 67b57c8c28
commit eaedad4d1e
7 changed files with 425 additions and 46 deletions
Download patch file Download diff file Expand all files Collapse all files

4
lib/asserted_formulas.cpp
View file

@ -44,7 +44,7 @@ Revision History:
#include"bit2int.h"
#include"qe.h"
#include"distribute_forall.h"
#include"demodulator.h"
#include"ufbv_rewriter.h"
#include"quasi_macros.h"
asserted_formulas::asserted_formulas(ast_manager & m, front_end_params & p):
@ -955,7 +955,7 @@ void asserted_formulas::apply_demodulators() {
expr_ref_vector new_exprs(m_manager);
proof_ref_vector new_prs(m_manager);
unsigned sz = m_asserted_formulas.size();
demodulator proc(m_manager, *m_bsimp);
ufbv_rewriter proc(m_manager, *m_bsimp);
proc(sz - m_asserted_qhead,
m_asserted_formulas.c_ptr() + m_asserted_qhead,
m_asserted_formula_prs.c_ptr() + m_asserted_qhead,

5
lib/lib.vcxproj
View file

@ -1,4 +1,4 @@
<?xml version="1.0" encoding="utf-8"?>
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup Label="ProjectConfigurations">
<ProjectConfiguration Include="commercial|Win32">
@ -528,7 +528,6 @@
<ClCompile Include="defined_names.cpp" />
<ClCompile Include="default_tactic.cpp" />
<ClCompile Include="degree_shift_tactic.cpp" />
<ClCompile Include="demodulator.cpp" />
<ClCompile Include="der.cpp" />
<ClCompile Include="dimacs.cpp" />
<ClCompile Include="diff_neq_tactic.cpp" />
@ -919,7 +918,9 @@
<ClCompile Include="timer.cpp" />
<ClCompile Include="trace.cpp" />
<ClCompile Include="tseitin_cnf_tactic.cpp" />
<ClCompile Include="ufbv_rewriter.cpp" />
<ClCompile Include="ufbv_strategy.cpp" />
<ClCompile Include="ufbv_tactic.cpp" />
<ClCompile Include="unifier.cpp" />
<ClCompile Include="unit_subsumption_tactic.cpp" />
<ClCompile Include="upolynomial_factorization.cpp" />

53
lib/demodulator.cpp → lib/ufbv_rewriter.cpp
View file

@ -15,17 +15,18 @@ Author:
Revision History:
Christoph Wintersteiger 2010-04-21: Implementation
Christoph M. Wintersteiger (cwinter) 2010-04-21: Implementation
Christoph M. Wintersteiger (cwinter) 2012-10-24: Moved from demodulator.h to ufbv_rewriter.h
--*/
#include"ast_pp.h"
#include"demodulator.h"
#include"ufbv_rewriter.h"
#include"for_each_expr.h"
#include"var_subst.h"
#include"uint_set.h"
demodulator::demodulator(ast_manager & m, basic_simplifier_plugin & p):
ufbv_rewriter::ufbv_rewriter(ast_manager & m, basic_simplifier_plugin & p):
m_manager(m),
m_match_subst(m),
m_bsimp(p),
@ -35,7 +36,7 @@ demodulator::demodulator(ast_manager & m, basic_simplifier_plugin & p):
m_new_exprs(m) {
}
demodulator::~demodulator() {
ufbv_rewriter::~ufbv_rewriter() {
reset_dealloc_values(m_fwd_idx);
reset_dealloc_values(m_back_idx);
for (demodulator2lhs_rhs::iterator it = m_demodulator2lhs_rhs.begin(); it != m_demodulator2lhs_rhs.end(); it++) {
@ -45,7 +46,7 @@ demodulator::~demodulator() {
}
}
bool demodulator::is_demodulator(expr * e, expr_ref & large, expr_ref & small) const {
bool ufbv_rewriter::is_demodulator(expr * e, expr_ref & large, expr_ref & small) const {
if (e->get_kind() == AST_QUANTIFIER) {
quantifier * q = to_quantifier(e);
if (q->is_forall()) {
@ -121,7 +122,7 @@ public:
void operator()(app * n) {}
};
int demodulator::is_subset(expr * e1, expr * e2) const {
int ufbv_rewriter::is_subset(expr * e1, expr * e2) const {
uint_set ev1, ev2;
if (m_manager.is_value(e1))
@ -138,7 +139,7 @@ int demodulator::is_subset(expr * e1, expr * e2) const {
0 ;
}
int demodulator::is_smaller(expr * e1, expr * e2) const {
int ufbv_rewriter::is_smaller(expr * e1, expr * e2) const {
unsigned sz1 = 0, sz2 = 0;
// values are always smaller!
@ -202,14 +203,14 @@ public:
unsigned get_max(void) { return m_max_var_id; }
};
unsigned demodulator::max_var_id(expr * e)
unsigned ufbv_rewriter::max_var_id(expr * e)
{
max_var_id_proc proc;
for_each_expr(proc, e);
return proc.get_max();
}
void demodulator::insert_fwd_idx(expr * large, expr * small, quantifier * demodulator) {
void ufbv_rewriter::insert_fwd_idx(expr * large, expr * small, quantifier * demodulator) {
SASSERT(large->get_kind() == AST_APP);
SASSERT(demodulator);
SASSERT(large && small);
@ -233,7 +234,7 @@ void demodulator::insert_fwd_idx(expr * large, expr * small, quantifier * demodu
m_demodulator2lhs_rhs.insert(demodulator, expr_pair(large, small));
}
void demodulator::remove_fwd_idx(func_decl * f, quantifier * demodulator) {
void ufbv_rewriter::remove_fwd_idx(func_decl * f, quantifier * demodulator) {
TRACE("demodulator_fwd", tout << "REMOVE: " << std::hex << (size_t)demodulator << std::endl; );
fwd_idx_map::iterator it = m_fwd_idx.find_iterator(f);
@ -249,7 +250,7 @@ void demodulator::remove_fwd_idx(func_decl * f, quantifier * demodulator) {
}
}
bool demodulator::check_fwd_idx_consistency(void) {
bool ufbv_rewriter::check_fwd_idx_consistency(void) {
for (fwd_idx_map::iterator it = m_fwd_idx.begin(); it != m_fwd_idx.end() ; it++ ) {
quantifier_set * set = it->m_value;
SASSERT(set);
@ -262,7 +263,7 @@ bool demodulator::check_fwd_idx_consistency(void) {
return true;
}
void demodulator::show_fwd_idx(std::ostream & out) {
void ufbv_rewriter::show_fwd_idx(std::ostream & out) {
for (fwd_idx_map::iterator it = m_fwd_idx.begin(); it != m_fwd_idx.end() ; it++ ) {
quantifier_set * set = it->m_value;
SASSERT(!set);
@ -280,7 +281,7 @@ void demodulator::show_fwd_idx(std::ostream & out) {
}
}
bool demodulator::rewrite1(func_decl * f, ptr_vector<expr> & m_new_args, expr_ref & np) {
bool ufbv_rewriter::rewrite1(func_decl * f, ptr_vector<expr> & m_new_args, expr_ref & np) {
fwd_idx_map::iterator it = m_fwd_idx.find_iterator(f);
if (it != m_fwd_idx.end()) {
TRACE("demodulator_bug", tout << "trying to rewrite: " << f->get_name() << " args:\n";
@ -312,7 +313,7 @@ bool demodulator::rewrite1(func_decl * f, ptr_vector<expr> & m_new_args, expr_re
return false;
}
bool demodulator::rewrite_visit_children(app * a) {
bool ufbv_rewriter::rewrite_visit_children(app * a) {
bool res=true;
unsigned j = a->get_num_args();
while (j > 0) {
@ -325,11 +326,11 @@ bool demodulator::rewrite_visit_children(app * a) {
return res;
}
void demodulator::rewrite_cache(expr * e, expr * new_e, bool done) {
void ufbv_rewriter::rewrite_cache(expr * e, expr * new_e, bool done) {
m_rewrite_cache.insert(e, expr_bool_pair(new_e, done));
}
expr * demodulator::rewrite(expr * n) {
expr * ufbv_rewriter::rewrite(expr * n) {
if (m_fwd_idx.empty())
return n;
@ -440,7 +441,7 @@ expr * demodulator::rewrite(expr * n) {
return r;
}
class demodulator::add_back_idx_proc {
class ufbv_rewriter::add_back_idx_proc {
ast_manager & m_manager;
back_idx_map & m_back_idx;
expr * m_expr;
@ -467,7 +468,7 @@ public:
}
};
class demodulator::remove_back_idx_proc {
class ufbv_rewriter::remove_back_idx_proc {
ast_manager & m_manager;
back_idx_map & m_back_idx;
expr * m_expr;
@ -489,7 +490,7 @@ public:
}
};
void demodulator::reschedule_processed(func_decl * f) {
void ufbv_rewriter::reschedule_processed(func_decl * f) {
//use m_back_idx to find all formulas p in m_processed that contains f {
back_idx_map::iterator it = m_back_idx.find_iterator(f);
if (it != m_back_idx.end()) {
@ -518,7 +519,7 @@ void demodulator::reschedule_processed(func_decl * f) {
}
}
bool demodulator::can_rewrite(expr * n, expr * lhs) {
bool ufbv_rewriter::can_rewrite(expr * n, expr * lhs) {
// this is a quick check, we just traverse d and check if there is an expression in d that is an instance of lhs of n'.
// we cannot use the trick used for m_processed, since the main loop would not terminate.
@ -575,7 +576,7 @@ bool demodulator::can_rewrite(expr * n, expr * lhs) {
return false;
}
void demodulator::reschedule_demodulators(func_decl * f, expr * lhs) {
void ufbv_rewriter::reschedule_demodulators(func_decl * f, expr * lhs) {
// use m_back_idx to find all demodulators d in m_fwd_idx that contains f {
//ptr_vector<expr> to_remove;
@ -634,7 +635,7 @@ void demodulator::reschedule_demodulators(func_decl * f, expr * lhs) {
//}
}
void demodulator::operator()(unsigned n, expr * const * exprs, proof * const * prs, expr_ref_vector & new_exprs, proof_ref_vector & new_prs) {
void ufbv_rewriter::operator()(unsigned n, expr * const * exprs, proof * const * prs, expr_ref_vector & new_exprs, proof_ref_vector & new_prs) {
if (m_manager.proofs_enabled()) {
// Let us not waste time with proof production
warning_msg("PRE_DEMODULATOR=true is not supported when proofs are enabled.");
@ -734,7 +735,7 @@ void demodulator::operator()(unsigned n, expr * const * exprs, proof * const * p
}
demodulator::match_subst::match_subst(ast_manager & m):
ufbv_rewriter::match_subst::match_subst(ast_manager & m):
m_manager(m),
m_subst(m) {
}
@ -764,7 +765,7 @@ struct match_args_aux_proc {
void operator()(app * n) {}
};
bool demodulator::match_subst::match_args(app * lhs, expr * const * args) {
bool ufbv_rewriter::match_subst::match_args(app * lhs, expr * const * args) {
m_cache.reset();
m_todo.reset();
@ -880,7 +881,7 @@ bool demodulator::match_subst::match_args(app * lhs, expr * const * args) {
}
bool demodulator::match_subst::operator()(app * lhs, expr * rhs, expr * const * args, expr_ref & new_rhs) {
bool ufbv_rewriter::match_subst::operator()(app * lhs, expr * rhs, expr * const * args, expr_ref & new_rhs) {
if (match_args(lhs, args)) {
if (m_all_args_eq) {
// quick success...
@ -894,7 +895,7 @@ bool demodulator::match_subst::operator()(app * lhs, expr * rhs, expr * const *
return false;
}
bool demodulator::match_subst::operator()(expr * t, expr * i) {
bool ufbv_rewriter::match_subst::operator()(expr * t, expr * i) {
m_cache.reset();
m_todo.reset();
if (is_var(t))

14
lib/demodulator.h → lib/ufbv_rewriter.h
View file

@ -15,9 +15,11 @@ Author:
Revision History:
Christoph M. Wintersteiger (cwinter) 2012-10-24: Moved from demodulator.h to ufbv_rewriter.h
--*/
#ifndef _DEMODULATOR_H_
#define _DEMODULATOR_H_
#ifndef _UFBV_REWRITER_H_
#define _UFBV_REWRITER_H_
#include"ast.h"
#include"substitution.h"
@ -90,7 +92,7 @@ The code in spc_rewriter.* does something like that. We cannot reuse this code d
for the superposion engine in Z3, but we can adapt it for our needs in the preprocessor.
*/
class demodulator {
class ufbv_rewriter {
class rewrite_proc;
class add_back_idx_proc;
class remove_back_idx_proc;
@ -192,8 +194,8 @@ protected:
virtual int is_subset(expr * e1, expr * e2) const;
public:
demodulator(ast_manager & m, basic_simplifier_plugin & p);
virtual ~demodulator();
ufbv_rewriter(ast_manager & m, basic_simplifier_plugin & p);
virtual ~ufbv_rewriter();
void operator()(unsigned n, expr * const * exprs, proof * const * prs, expr_ref_vector & new_exprs, proof_ref_vector & new_prs);
@ -261,5 +263,5 @@ public:
*/
};
#endif /* _DEMODULATOR_H_ */
#endif /* _UFBV_REWRITER_H_ */

20
lib/ufbv_strategy.cpp
View file

@ -23,7 +23,7 @@ Notes:
#include"macro_finder.h"
#include"arith_simplifier_plugin.h"
#include"bv_simplifier_plugin.h"
#include"demodulator.h"
#include"ufbv_rewriter.h"
#include"quasi_macros.h"
#include"reduce_args.h"
#include"ufbv_strategy.h"
@ -206,17 +206,17 @@ as_st * mk_macro_finder(ast_manager & m, params_ref const & p, bool elim_and=fal
}
// --- DEMODULATOR STRATEGY
// --- UFBV-Rewriter (demodulator) STRATEGY
class demodulator_st : public assertion_set_strategy {
class ufbv_rewriter_st : public assertion_set_strategy {
ast_manager & m;
params_ref m_params;
bool m_produce_models;
bool m_cancel;
public:
demodulator_st(ast_manager & m, params_ref const & p = params_ref()) : m(m),m_params(p),m_produce_models(false),m_cancel(false) { }
virtual ~demodulator_st() {}
ufbv_rewriter_st(ast_manager & m, params_ref const & p = params_ref()) : m(m),m_params(p),m_produce_models(false),m_cancel(false) { }
virtual ~ufbv_rewriter_st() {}
virtual void updt_params(params_ref const & p) {
m_produce_models = p.get_bool(":produce-models", false);
@ -229,10 +229,10 @@ public:
virtual void collect_param_descrs(param_descrs & r) { get_param_descrs(r); }
virtual void operator()(assertion_set & s, model_converter_ref & mc) {
as_st_report report("demodulator", s);
as_st_report report("ufbv-rewriter", s);
basic_simplifier_plugin bsimp(m);
bsimp.set_eliminate_and(true);
demodulator dem(m, bsimp);
ufbv_rewriter dem(m, bsimp);
expr_ref_vector forms(m), new_forms(m);
proof_ref_vector proofs(m), new_proofs(m);
@ -257,8 +257,8 @@ protected:
virtual void set_cancel(bool f) { m_cancel = f; }
};
as_st * mk_demodulator(ast_manager & m, params_ref const & p) {
return alloc(demodulator_st, m, p);
as_st * mk_ufbv_rewriter(ast_manager & m, params_ref const & p) {
return alloc(ufbv_rewriter_st, m, p);
}
@ -465,7 +465,7 @@ as_st * mk_preprocessor(ast_manager & m, params_ref const & p) {
),
and_then( and_then(mk_reduce_args(m, p), mk_simplifier(m, p)),
and_then(mk_macro_finder(m, p, true), mk_simplifier(m, p)),
and_then(mk_demodulator(m, p), mk_simplifier(m, p)),
and_then(mk_ufbv_rewriter(m, p), mk_simplifier(m, p)),
and_then(mk_quasi_macros(m, p), mk_simplifier(m, p)),
and_then(mk_der_fp(m, p), mk_simplifier(m, p)),
mk_simplifier(m, p)),

345
lib/ufbv_tactic.cpp Normal file
View file

@ -0,0 +1,345 @@
/*++
Copyright (c) 2012 Microsoft Corporation
Module Name:
ufbv_tactic.cpp
Abstract:
General purpose tactic for UFBV benchmarks.
Author:
Christoph (cwinter) 2012-10-24
Notes:
--*/
#include"tactical.h"
#include"simplify_tactic.h"
#include"propagate_values_tactic.h"
#include"nnf.h"
#include"solve_eqs_tactic.h"
#include"simplifier.h"
#include"basic_simplifier_plugin.h"
#include"arith_simplifier_plugin.h"
#include"bv_simplifier_plugin.h"
#include"macro_manager.h"
#include"macro_finder.h"
#include"elim_var_model_converter.h"
#include"ufbv_rewriter.h"
#include"distribute_forall_tactic.h"
#include"der.h"
#include"smt_tactic.h"
#include"ufbv_tactic.h"
class macro_finder_tactic : public tactic {
struct imp {
ast_manager & m_manager;
bool m_cancel;
bool m_elim_and;
imp(ast_manager & m, params_ref const & p) : m_manager(m),m_elim_and(false),m_cancel(false) {
updt_params(p);
}
ast_manager & m() const { return m_manager; }
void set_cancel(bool f) {
m_cancel = f;
}
void operator()(goal_ref const & g,
goal_ref_buffer & result,
model_converter_ref & mc,
proof_converter_ref & pc,
expr_dependency_ref & core) {
SASSERT(g->is_well_sorted());
mc = 0; pc = 0; core = 0;
tactic_report report("macro-finder", *g);
fail_if_unsat_core_generation("macro-finder", g);
bool produce_proofs = g->proofs_enabled();
bool produce_models = g->models_enabled();
simplifier simp(m_manager);
basic_simplifier_plugin * bsimp = alloc(basic_simplifier_plugin, m_manager);
bsimp->set_eliminate_and(m_elim_and);
simp.register_plugin(bsimp);
arith_simplifier_params a_params;
arith_simplifier_plugin * asimp = alloc(arith_simplifier_plugin, m_manager, *bsimp, a_params);
simp.register_plugin(asimp);
bv_simplifier_params bv_params;
bv_simplifier_plugin * bvsimp = alloc(bv_simplifier_plugin, m_manager, *bsimp, bv_params);
simp.register_plugin(bvsimp);
macro_manager mm(m_manager, simp);
macro_finder mf(m_manager, mm);
expr_ref_vector forms(m_manager), new_forms(m_manager);
proof_ref_vector proofs(m_manager), new_proofs(m_manager);
unsigned size = g->size();
for (unsigned idx = 0; idx < size; idx++) {
forms.push_back(g->form(idx));
proofs.push_back(g->pr(idx));
}
mf(forms.size(), forms.c_ptr(), proofs.c_ptr(), new_forms, new_proofs);
unsigned i = 0;
for (; i < g->size(); i++)
g->update(i, new_forms.get(i), produce_proofs ? new_proofs.get(i) : 0, g->dep(i));
for (; i < new_forms.size(); i++)
g->assert_expr(new_forms.get(i), new_proofs.get(i), 0);
elim_var_model_converter * evmc = alloc(elim_var_model_converter, mm.get_manager());
unsigned num = mm.get_num_macros();
for (unsigned i = 0; i < num; i++) {
expr_ref f_interp(mm.get_manager());
func_decl * f = mm.get_macro_interpretation(i, f_interp);
evmc->insert(f, f_interp);
}
mc = evmc;
g->inc_depth();
result.push_back(g.get());
TRACE("macro-finder", g->display(tout););
SASSERT(g->is_well_sorted());
}
void updt_params(params_ref const & p) {
m_elim_and = p.get_bool(":elim-and", false);
}
};
imp * m_imp;
params_ref m_params;
public:
macro_finder_tactic(ast_manager & m, params_ref const & p):
m_params(p) {
m_imp = alloc(imp, m, p);
}
virtual tactic * translate(ast_manager & m) {
return alloc(macro_finder_tactic, m, m_params);
}
virtual ~macro_finder_tactic() {
dealloc(m_imp);
}
virtual void updt_params(params_ref const & p) {
m_params = p;
m_imp->updt_params(p);
}
virtual void collect_param_descrs(param_descrs & r) {
insert_max_memory(r);
insert_produce_models(r);
insert_produce_proofs(r);
r.insert(":elim-and", CPK_BOOL, "(default: false) eliminate conjunctions during (internal) calls to the simplifier.");
}
virtual void operator()(goal_ref const & in,
goal_ref_buffer & result,
model_converter_ref & mc,
proof_converter_ref & pc,
expr_dependency_ref & core) {
(*m_imp)(in, result, mc, pc, core);
}
virtual void cleanup() {
ast_manager & m = m_imp->m();
imp * d = m_imp;
#pragma omp critical (tactic_cancel)
{
m_imp = 0;
}
dealloc(d);
d = alloc(imp, m, m_params);
#pragma omp critical (tactic_cancel)
{
m_imp = d;
}
}
virtual void set_cancel(bool f) {
if (m_imp)
m_imp->set_cancel(f);
}
};
tactic * mk_macro_finder_tactic(ast_manager & m, params_ref const & p) {
return alloc(macro_finder_tactic, m, p);
}
class ufbv_rewriter_tactic : public tactic {
struct imp {
ast_manager & m_manager;
bool m_cancel;
imp(ast_manager & m, params_ref const & p) : m_manager(m),m_cancel(false) {
updt_params(p);
}
ast_manager & m() const { return m_manager; }
void set_cancel(bool f) {
m_cancel = f;
}
void operator()(goal_ref const & g,
goal_ref_buffer & result,
model_converter_ref & mc,
proof_converter_ref & pc,
expr_dependency_ref & core) {
SASSERT(g->is_well_sorted());
mc = 0; pc = 0; core = 0;
tactic_report report("ufbv-rewriter", *g);
fail_if_unsat_core_generation("ufbv-rewriter", g);
bool produce_proofs = g->proofs_enabled();
bool produce_models = g->models_enabled();
basic_simplifier_plugin bsimp(m_manager);
bsimp.set_eliminate_and(true);
ufbv_rewriter dem(m_manager, bsimp);
expr_ref_vector forms(m_manager), new_forms(m_manager);
proof_ref_vector proofs(m_manager), new_proofs(m_manager);
unsigned size = g->size();
for (unsigned i = 0; i < size; i++) {
forms.push_back(g->form(i));
proofs.push_back(g->pr(i));
}
dem(forms.size(), forms.c_ptr(), proofs.c_ptr(), new_forms, new_proofs);
unsigned i = 0;
for (; i < g->size(); i++)
g->update(i, new_forms.get(i), produce_proofs ? new_proofs.get(i) : 0, g->dep(i));
for (; i < new_forms.size(); i++)
g->assert_expr(new_forms.get(i), new_proofs.get(i), 0);
mc = 0; // CMW: Remark: The demodulator could potentially remove all references to a variable.
g->inc_depth();
result.push_back(g.get());
TRACE("ufbv-rewriter", g->display(tout););
SASSERT(g->is_well_sorted());
}
void updt_params(params_ref const & p) {
}
};
imp * m_imp;
params_ref m_params;
public:
ufbv_rewriter_tactic(ast_manager & m, params_ref const & p):
m_params(p) {
m_imp = alloc(imp, m, p);
}
virtual tactic * translate(ast_manager & m) {
return alloc(ufbv_rewriter_tactic, m, m_params);
}
virtual ~ufbv_rewriter_tactic() {
dealloc(m_imp);
}
virtual void updt_params(params_ref const & p) {
m_params = p;
m_imp->updt_params(p);
}
virtual void collect_param_descrs(param_descrs & r) {
insert_max_memory(r);
insert_produce_models(r);
insert_produce_proofs(r);
}
virtual void operator()(goal_ref const & in,
goal_ref_buffer & result,
model_converter_ref & mc,
proof_converter_ref & pc,
expr_dependency_ref & core) {
(*m_imp)(in, result, mc, pc, core);
}
virtual void cleanup() {
ast_manager & m = m_imp->m();
imp * d = m_imp;
#pragma omp critical (tactic_cancel)
{
m_imp = 0;
}
dealloc(d);
d = alloc(imp, m, m_params);
#pragma omp critical (tactic_cancel)
{
m_imp = d;
}
}
virtual void set_cancel(bool f) {
if (m_imp)
m_imp->set_cancel(f);
}
};
tactic * mk_ufbv_rewriter_tactic(ast_manager & m, params_ref const & p) {
return alloc(ufbv_rewriter_tactic, m, p);
}
tactic * mk_der_fp(ast_manager & m, params_ref const & p) {
return repeat(and_then(mk_der_tactic(m), mk_simplify_tactic(m, p)));
}
tactic * mk_ufbv_preprocessor_tactic(ast_manager & m, params_ref const & p) {
params_ref elim_and_p;
elim_and_p.set_bool(":elim-and", true);
return and_then(
and_then(mk_simplify_tactic(m, p),
mk_propagate_values_tactic(m, p),
and_then(mk_macro_finder_tactic(m, elim_and_p),
mk_macro_finder_tactic(m, p), mk_simplify_tactic(m, p)),
and_then(mk_snf_tactic(m, p), mk_simplify_tactic(m, p)),
mk_simplify_tactic(m, elim_and_p),
mk_solve_eqs_tactic(m, p),
and_then(mk_der_fp(m, p), mk_simplify_tactic(m, p)),
and_then(mk_distribute_forall_tactic(m, p), mk_simplify_tactic(m, p))),
and_then( // and_then(mk_reduce_args(m, p), mk_simplify_tactic(m, p)),
and_then(mk_macro_finder_tactic(m, elim_and_p), mk_simplify_tactic(m, p)),
and_then(mk_ufbv_rewriter_tactic(m, p), mk_simplify_tactic(m, p)),
// and_then(mk_quasi_macros(m, p), mk_simplify_tactic(m, p)),
and_then(mk_der_fp(m, p), mk_simplify_tactic(m, p)),
mk_simplify_tactic(m, p)));
}
tactic * mk_ufbv_tactic(ast_manager & m, params_ref const & p) {
params_ref main_p(p);
main_p.set_bool(":mbqi", true);
main_p.set_uint(":mbqi-max-iterations", -1);
main_p.set_bool(":elim-and", true);
main_p.set_bool(":solver", true);
params_ref smt_p(p);
smt_p.set_bool(":auto-config", false);
tactic * t = and_then(repeat(mk_ufbv_preprocessor_tactic(m, main_p), 2),
using_params(mk_smt_tactic(smt_p), main_p));
t->updt_params(p);
return t;
}

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/*++
Copyright (c) 2012 Microsoft Corporation
Module Name:
ufbv_tactic.h
Abstract:
General purpose tactic for UFBV benchmarks.
Author:
Christoph (cwinter) 2012-10-24
Notes:
--*/
#ifndef _UFBV_TACTIC_H_
#define _UFBV_TACTIC_H_
#include"params.h"
class ast_manager;
class tactic;
tactic * mk_macro_finder_tactic(ast_manager & m, params_ref const & p);
tactic * mk_ufbv_tactic(ast_manager & m, params_ref const & p);
#endif