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fixes in branching

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Signed-off-by: Lev Nachmanson <levnach@hotmail.com>
This commit is contained in:
Lev Nachmanson 2020-04-26 16:12:54 -07:00
parent 236edad8dc
commit 530f77281c
9 changed files with 20 additions and 40 deletions
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1
src/smt/params/smt_params_helper.pyg
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@ -62,7 +62,6 @@ def_module_params(module_name='smt',
('arith.propagate_eqs', BOOL, True, 'propagate (cheap) equalities'),
('arith.propagation_mode', UINT, 2, '0 - no propagation, 1 - propagate existing literals, 2 - refine bounds'),
('arith.reflect', BOOL, True, 'reflect arithmetical operators to the congruence closure'),
('arith.branch_flip', BOOL, False, 'flip branches randomly'),
('arith.branch_cut_ratio', UINT, 2, 'branch/cut ratio for linear integer arithmetic'),
('arith.int_eq_branch', BOOL, False, 'branching using derived integer equations'),
('arith.ignore_int', BOOL, False, 'treat integer variables as real'),

1
src/smt/theory_lra.cpp
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@ -396,7 +396,6 @@ class theory_lra::imp {
lp().settings().print_statistics = lpar.arith_print_stats();
// todo : do not use m_arith_branch_cut_ratio for deciding on cheap cuts
lp().settings().set_branch_flip(lpar.arith_branch_flip());
unsigned branch_cut_ratio = ctx().get_fparams().m_arith_branch_cut_ratio;
lp().set_cut_strategy(branch_cut_ratio);