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https://github.com/Z3Prover/z3
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57 lines
1,022 B
C++
57 lines
1,022 B
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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fm_tactic.h
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Author:
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Leonardo de Moura (leonardo) 2012-02-04.
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Tactic Documentation:
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## Tactic fm
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### Short Description
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Use Fourier-Motzkin to eliminate variables.
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This strategy can handle conditional bounds
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(i.e., clauses with at most one constraint).
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The tactic occf can be used to put the
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formula in OCC form.
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### Example
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```z3
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(declare-const x Real)
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(declare-const y Real)
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(declare-const z Real)
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(declare-const u Real)
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(declare-const v Real)
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(declare-const w Real)
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(declare-fun P (Real) Bool)
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(assert (<= x (+ y (* 2.0 z))))
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(assert (>= x (- y z)))
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(assert (>= x (- y 3 (* 3 z))))
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(assert (>= x 5))
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(assert (<= x u))
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(assert (>= x v))
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(assert (P u))
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(assert (P v))
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(apply fm)
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```
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--*/
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#pragma once
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#include "util/params.h"
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class ast_manager;
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class tactic;
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tactic * mk_fm_tactic(ast_manager & m, params_ref const & p = params_ref());
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/*
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ADD_TACTIC("fm", "eliminate variables using fourier-motzkin elimination.", "mk_fm_tactic(m, p)")
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*/
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