mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-04-24 01:25:31 +00:00
Code Activity

avoid crash on nl

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-12-15 06:38:56 -08:00
parent 1c3d385c25
commit 397cdfc608
3 changed files with 3 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

6
src/nlsat/nlsat_solver.cpp
View file

@ -732,7 +732,7 @@ namespace nlsat {
}
void undo_set_updt(interval_set * old_set) {
SASSERT(m_xk != null_var);
if (m_xk == null_var) return;
var x = m_xk;
if (x < m_infeasible.size()) {
m_ism.dec_ref(m_infeasible[x]);
@ -741,8 +741,7 @@ namespace nlsat {
}
void undo_new_stage() {
SASSERT(m_xk != null_var);
if (m_xk == 0) {
if (m_xk == 0 || m_xk == null_var) {
m_xk = null_var;
}
else {
@ -758,7 +757,6 @@ namespace nlsat {
}
void undo_updt_eq(atom * a) {
SASSERT(m_xk != null_var);
if (m_var2eq.size() > m_xk)
m_var2eq[m_xk] = a;
}