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

increase build version, better propagation in euf-egraph, handle assumptions in sat.smt

Browse source 
- increase build version to 4.12.1. This prepares updated release for MacOs-11 build on x86
- move literal propagation mode in euf-egraph to a callback and traversal of equivalence class. Track antecedent by newest equality instead of root. This makes equality propagation to literals have similar behavior as in legacy solver and appears to result in a speedup (10% fewer conflicts on QF_UF/QG-classification/qg5/iso_icl478.smt2 in preliminary testing)
- fix interaction of pre-processing and assumptions. Pre-processing has to freeze assumption literals so they don't get eliminated. This is similar to dependencies that are already frozen.
This commit is contained in:
Nikolaj Bjorner 2023-01-17 14:07:07 -08:00
parent c8f197d0ca
commit 7368f9f7d3
22 changed files with 201 additions and 162 deletions
Download patch file Download diff file Expand all files Collapse all files

1
src/smt/smt_context.cpp
View file

@ -866,6 +866,7 @@ namespace smt {
SASSERT(curr != m_false_enode);
bool_var v = enode2bool_var(curr);
literal l(v, sign);
CTRACE("propagate", (get_assignment(l) != l_true), tout << enode_pp(curr, *this) << " " << l << "\n");
if (get_assignment(l) != l_true)
assign(l, mk_justification(eq_root_propagation_justification(curr)));
curr = curr->m_next;