| author | wenzelm |
| Sat, 14 Jan 2017 20:39:16 +0100 | |
| changeset 64891 | d047004c1109 |
| parent 63992 | 3aa9837d05c7 |
| permissions | -rw-r--r-- |
| 63992 | 1 |
(* Title: HOL/Tools/Argo/argo_sat_solver.ML |
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Author: Sascha Boehme |
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use argo as additional SAT solver with models but no proofs, since the proof trace formats are not easily translatable
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A SAT solver based on the Argo solver. |
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This SAT solver produces models. For proofs use Argo_Tactic.prove instead. |
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*) |
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structure Argo_SAT_Solver: sig end = |
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struct |
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fun con_of i = (string_of_int i, Argo_Expr.Bool) |
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fun expr_of Prop_Logic.True = Argo_Expr.true_expr |
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| expr_of Prop_Logic.False = Argo_Expr.false_expr |
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| expr_of (Prop_Logic.Not p) = Argo_Expr.mk_not (expr_of p) |
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| expr_of (Prop_Logic.Or (p1, p2)) = Argo_Expr.mk_or2 (expr_of p1) (expr_of p2) |
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| expr_of (Prop_Logic.And (p1, p2)) = Argo_Expr.mk_and2 (expr_of p1) (expr_of p2) |
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| expr_of (Prop_Logic.BoolVar i) = Argo_Expr.mk_con (con_of i) |
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fun argo_solver p = |
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let val argo = Argo_Solver.assert [expr_of p] Argo_Solver.context |
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in SAT_Solver.SATISFIABLE (Argo_Solver.model_of argo o con_of) end |
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handle Argo_Proof.UNSAT _ => SAT_Solver.UNSATISFIABLE NONE |
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val () = SAT_Solver.add_solver ("argo", argo_solver)
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end |