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Fix bug reported by Philippe Suter, see RELEASE_NOTES

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-12-17 14:07:21 -08:00
parent 143b829488
commit 8c211dd4fc
2 changed files with 26 additions and 1 deletions
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12
src/smt/smt_context.cpp
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@ -2854,7 +2854,12 @@ namespace smt {
m_bool_var2assumption.reset();
m_unsat_core.reset();
if (num_assumptions > 0) {
propagate(); // we must give a chance to the theories to propagate before we create a new scope...
// We must give a chance to the theories to propagate before we create a new scope...
propagate();
// Internal backtracking scopes (created with push_scope()) must only be created when we are
// in a consistent context.
if (inconsistent())
return;
push_scope();
for (unsigned i = 0; i < num_assumptions; i++) {
expr * curr_assumption = assumptions[i];
@ -3987,3 +3992,8 @@ namespace smt {
};
#ifdef Z3DEBUG
void pp(smt::context & c) {
c.display(std::cout);
}
#endif