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pb theory

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2013-11-17 10:39:33 -08:00
parent f6c5088cc9
commit f3721e5a15
2 changed files with 144 additions and 167 deletions
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10
src/smt/theory_pb.h
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@ -42,7 +42,6 @@ namespace smt {
struct ineq {
app* m_app;
literal m_lit; // literal repesenting predicate
arg_t m_args; // encode args[0]*coeffs[0]+...+args[n-1]*coeffs[n-1] >= m_k;
numeral m_k; // invariants: m_k > 0, coeffs[i] > 0
@ -58,8 +57,7 @@ namespace smt {
unsigned m_compilation_threshold;
lbool m_compiled;
ineq(app* a, literal l):
m_app(a),
ineq(literal l):
m_lit(l),
m_max_coeff(0),
m_watch_sz(0),
@ -91,6 +89,10 @@ namespace smt {
}
return begin;
}
void negate();
bool well_formed() const;
};
typedef ptr_vector<ineq> watch_list;
@ -99,6 +101,8 @@ namespace smt {
u_map<ineq*> m_ineqs; // per inequality.
unsigned_vector m_ineqs_trail;
unsigned_vector m_ineqs_lim;
ptr_vector<ineq> m_assign_ineqs_trail;
unsigned_vector m_assign_ineqs_lim;
literal_vector m_literals; // temporary vector
card_util m_util;
stats m_stats;