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Added option to limit the distance of unsat core extension through patterns.

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This commit is contained in:
Christoph M. Wintersteiger 2017-01-21 12:28:37 +00:00
parent 1bfd09e16b
commit adf8072eaa
2 changed files with 10 additions and 4 deletions
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11
src/smt/smt_solver.cpp
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@ -37,6 +37,7 @@ namespace smt {
symbol m_logic;
bool m_minimizing_core;
bool m_core_extend_patterns;
unsigned m_core_extend_patterns_max_distance;
obj_map<expr, expr*> m_name2assertion;
public:
@ -46,12 +47,14 @@ namespace smt {
m_params(p),
m_context(m, m_smt_params),
m_minimizing_core(false),
m_core_extend_patterns(false) {
m_core_extend_patterns(false),
m_core_extend_patterns_max_distance(UINT_MAX) {
m_logic = l;
if (m_logic != symbol::null)
m_context.set_logic(m_logic);
smt_params_helper smth(p);
m_core_extend_patterns = smth.core_extend_patterns();
m_core_extend_patterns_max_distance = smth.core_extend_patterns_max_distance();
}
virtual solver * translate(ast_manager & m, params_ref const & p) {
@ -283,7 +286,7 @@ namespace smt {
func_decl_set pattern_fds;
vector<func_decl_set> assrtn_fds;
do {
for (unsigned d = 0; d < m_core_extend_patterns_max_distance; d++) {
new_core_literals.reset();
unsigned sz = core.size();
@ -308,8 +311,10 @@ namespace smt {
}
core.append(new_core_literals.size(), new_core_literals.c_ptr());
if (new_core_literals.empty())
break;
}
while (!new_core_literals.empty());
}
};
};