mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-10-08 17:01:55 +00:00
Code Activity

add option to control epsilon #7791

Browse source 
#7791 reports on using model values during lex optimization that break soft constraints.
This is an artifact of using optimization where optimal values can be arbitrarily close to a rational.
In a way it is by design, but we give the user now an option to control the starting point for epsilon when converting infinitesimals into rationals.
This commit is contained in:
Nikolaj Bjorner 2025-08-17 16:47:23 -07:00
parent d8bf0e047f
commit c75b8ec752
7 changed files with 14 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

2
src/math/lp/lp_settings.cpp
View file

@ -34,6 +34,8 @@ void lp::lp_settings::updt_params(params_ref const& _p) {
report_frequency = p.arith_rep_freq();
m_simplex_strategy = static_cast<lp::simplex_strategy_enum>(p.arith_simplex_strategy());
m_nlsat_delay = p.arith_nl_delay();
auto eps = p.arith_epsilon();
m_epsilon = rational(std::max(1, (int)(100000*eps)), 100000);
m_dio = lp_p.dio();
m_dio_enable_gomory_cuts = lp_p.dio_cuts_enable_gomory();
m_dio_enable_hnf_cuts = lp_p.dio_cuts_enable_hnf();