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Fix issue https://z3.codeplex.com/workitem/38

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2013-06-06 13:20:43 -07:00
parent 110fa0b7fb
commit f4f1c63abb
3 changed files with 36 additions and 15 deletions
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20
src/sat/sat_clause_use_list.h
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@ -20,6 +20,7 @@ Revision History:
#define _SAT_CLAUSE_USE_LIST_H_
#include"sat_types.h"
#include"trace.h"
namespace sat {
@ -35,6 +36,7 @@ namespace sat {
#endif
public:
clause_use_list() {
STRACE("clause_use_list_bug", tout << "[cul_created] " << this << "\n";);
#ifdef LAZY_USE_LIST
m_size = 0;
#endif
@ -51,22 +53,33 @@ namespace sat {
bool empty() const { return size() == 0; }
void insert(clause & c) {
SASSERT(!m_clauses.contains(&c)); SASSERT(!c.was_removed());
STRACE("clause_use_list_bug", tout << "[cul_insert] " << this << " " << &c << "\n";);
SASSERT(!m_clauses.contains(&c));
SASSERT(!c.was_removed());
m_clauses.push_back(&c);
#ifdef LAZY_USE_LIST
m_size++;
#endif
}
void erase_not_removed(clause & c) {
STRACE("clause_use_list_bug", tout << "[cul_erase_not_removed] " << this << " " << &c << "\n";);
#ifdef LAZY_USE_LIST
SASSERT(m_clauses.contains(&c)); SASSERT(!c.was_removed()); m_clauses.erase(&c); m_size--;
SASSERT(m_clauses.contains(&c));
SASSERT(!c.was_removed());
m_clauses.erase(&c);
m_size--;
#else
m_clauses.erase(&c);
#endif
}
void erase(clause & c) {
STRACE("clause_use_list_bug", tout << "[cul_erase] " << this << " " << &c << "\n";);
#ifdef LAZY_USE_LIST
SASSERT(m_clauses.contains(&c)); SASSERT(c.was_removed()); m_size--;
SASSERT(m_clauses.contains(&c));
SASSERT(c.was_removed());
m_size--;
#else
m_clauses.erase(&c);
#endif
@ -80,6 +93,7 @@ namespace sat {
}
bool check_invariant() const;
// iterate & compress
class iterator {
clause_vector & m_clauses;