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disable anti-exploration by default

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Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2017-06-19 23:56:50 -05:00
parent ce592d7716
commit c6fbe38f78
4 changed files with 13 additions and 4 deletions
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8
src/api/dotnet/Solver.cs
View file

@ -196,6 +196,14 @@ namespace Microsoft.Z3
}
}
/// <summary>
/// Assert a lemma (or multiple) into the solver.
/// </summary>
public void AddLemma(IEnumerable<BoolExpr> constraints)
{
AssertLemma(constraints.ToArray());
}
/// <summary>
/// The number of assertions in the solver.
/// </summary>

2
src/sat/sat_config.cpp
View file

@ -141,7 +141,7 @@ namespace sat {
else {
throw sat_param_exception("invalid branching heuristic: accepted heuristics are 'vsids', 'lrb' or 'chb'");
}
m_anti_exploration = m_branching_heuristic != BH_VSIDS;
m_anti_exploration = p.branching_anti_exploration();
m_step_size_init = 0.40;
m_step_size_dec = 0.000001;
m_step_size_min = 0.06;

1
src/sat/sat_params.pyg
View file

@ -10,6 +10,7 @@ def_module_params('sat',
('restart.max', UINT, UINT_MAX, 'maximal number of restarts.'),
('restart.factor', DOUBLE, 1.5, 'restart increment factor for geometric strategy'),
('branching.heuristic', SYMBOL, 'vsids', 'branching heuristic vsids, lrb or chb'),
('branching.anti_exploration', BOOL, False, 'apply anti-exploration heuristic for branch selection'),
('random_freq', DOUBLE, 0.01, 'frequency of random case splits'),
('random_seed', UINT, 0, 'random seed'),
('burst_search', UINT, 100, 'number of conflicts before first global simplification'),