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49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
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/*++
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Copyright (c) 2022 Microsoft Corporation
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Module Name:
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elim_bounds.h
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Author:
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Nikolaj Bjorner (nbjorner) 2022-11-24
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--*/
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#pragma once
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#include "ast/simplifiers/dependent_expr_state.h"
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#include "ast/rewriter/elim_bounds.h"
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class elim_bounds_simplifier : public dependent_expr_simplifier {
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elim_bounds_rw m_rewriter;
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public:
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elim_bounds_simplifier(ast_manager& m, params_ref const& p, dependent_expr_state& fmls):
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dependent_expr_simplifier(m, fmls),
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m_rewriter(m) {
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}
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char const* name() const override { return "cheap-fourier-motzkin"; }
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void reduce() override {
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if (!m_fmls.has_quantifiers())
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return;
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expr_ref r(m);
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for (unsigned idx : indices()) {
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auto const& d = m_fmls[idx];
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if (!has_quantifiers(d.fml()))
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continue;
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m_rewriter(d.fml(), r);
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m_fmls.update(idx, dependent_expr(m, r, nullptr, d.dep()));
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}
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}
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};
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/*
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ADD_SIMPLIFIER("cheap-fourier-motzkin", "eliminate variables from quantifiers using partial Fourier-Motzkin elimination.", "alloc(elim_bounds_simplifier, m, p, s)")
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*/
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