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Add option to use old_hyp_reducer

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Bernhard Gleiss 2017-12-18 16:45:58 +01:00 • committed by Arie Gurfinkel
parent f0f75d5254
commit 85c58e344c
4 changed files with 53 additions and 32 deletions
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72
src/muz/spacer/spacer_itp_solver.cpp
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@ -19,6 +19,7 @@ Notes:
#include"muz/spacer/spacer_itp_solver.h"
#include"ast/ast.h"
#include"muz/spacer/spacer_util.h"
#include"muz/base/proof_utils.h"
#include"muz/spacer/spacer_farkas_learner.h"
#include"ast/rewriter/expr_replacer.h"
#include"muz/spacer/spacer_unsat_core_learner.h"
@ -277,39 +278,56 @@ void itp_solver::get_itp_core (expr_ref_vector &core)
}
else
{
proof_ref res(get_proof(),m);
// new code
// preprocess proof in order to get a proof which is better suited for unsat-core-extraction
proof_ref pr(get_proof(), m);
if (m_print_farkas_stats)
if (m_old_hyp_reducer)
{
iuc_proof iuc_before(m, pr.get(), B);
verbose_stream() << "Stats before transformation:";
iuc_before.print_farkas_stats();
// preprocess proof in order to get a proof which is better suited for unsat-core-extraction
if (m_print_farkas_stats)
{
iuc_proof iuc_before(m, res.get(), B);
verbose_stream() << "\nStats before transformation:";
iuc_before.print_farkas_stats();
}
proof_utils::reduce_hypotheses(res);
proof_utils::permute_unit_resolution(res);
if (m_print_farkas_stats)
{
iuc_proof iuc_after(m, res.get(), B);
verbose_stream() << "Stats after transformation:";
iuc_after.print_farkas_stats();
}
}
theory_axiom_reducer ta_reducer(m);
proof_ref pr_without_theory_lemmas = ta_reducer.reduce(pr.get());
if (m_print_farkas_stats)
else
{
iuc_proof iuc_mid(m, pr_without_theory_lemmas.get(), B);
verbose_stream() << "Stats after first transformation:";
iuc_mid.print_farkas_stats();
// preprocess proof in order to get a proof which is better suited for unsat-core-extraction
if (m_print_farkas_stats)
{
iuc_proof iuc_before(m, res.get(), B);
verbose_stream() << "\nStats before transformation:";
iuc_before.print_farkas_stats();
}
theory_axiom_reducer ta_reducer(m);
proof_ref pr_without_theory_lemmas = ta_reducer.reduce(res.get());
hypothesis_reducer hyp_reducer(m);
proof_ref pr_with_less_hypothesis = hyp_reducer.reduce(pr_without_theory_lemmas);
if (m_print_farkas_stats)
{
iuc_proof iuc_after(m, pr_with_less_hypothesis.get(), B);
verbose_stream() << "Stats after transformation:";
iuc_after.print_farkas_stats();
}
res = pr_with_less_hypothesis;
}
hypothesis_reducer hyp_reducer(m);
proof_ref pr_with_less_hypothesis = hyp_reducer.reduce(pr_without_theory_lemmas);
if (m_print_farkas_stats)
{
iuc_proof iuc_after(m, pr_with_less_hypothesis.get(), B);
verbose_stream() << "Stats after second transformation:";
iuc_after.print_farkas_stats();
}
// construct proof object with contains partition information
iuc_proof iuc_pr(m, pr_with_less_hypothesis, B);
iuc_proof iuc_pr(m, res, B);
// configure learner
unsat_core_learner learner(m, iuc_pr, m_print_farkas_stats, m_iuc_debug_proof);