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handle null more gracefully

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This commit is contained in:
Nikolaj Bjorner 2021-09-04 09:42:45 -07:00
parent 9c5ef79701
commit 3de9162c7e
1 changed files with 1 additions and 1 deletions
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src/sat/smt/euf_solver.h
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@ -351,7 +351,7 @@ namespace euf {
euf::enode* e_internalize(expr* e);
euf::enode* mk_enode(expr* e, unsigned n, enode* const* args) { return m_egraph.mk(e, m_generation, n, args); }
expr* bool_var2expr(sat::bool_var v) const { return m_bool_var2expr.get(v, nullptr); }
expr_ref literal2expr(sat::literal lit) const { expr* e = bool_var2expr(lit.var()); return lit.sign() ? expr_ref(m.mk_not(e), m) : expr_ref(e, m); }
expr_ref literal2expr(sat::literal lit) const { expr* e = bool_var2expr(lit.var()); return (e && lit.sign()) ? expr_ref(m.mk_not(e), m) : expr_ref(e, m); }
unsigned generation() const { return m_generation; }
sat::literal attach_lit(sat::literal lit, expr* e);