1 (* Title: HOL/Tools/SMT/cvc3_solver.ML |
|
2 Author: Sascha Boehme, TU Muenchen |
|
3 |
|
4 Interface of the SMT solver CVC3. |
|
5 *) |
|
6 |
|
7 signature CVC3_SOLVER = |
|
8 sig |
|
9 val setup: theory -> theory |
|
10 end |
|
11 |
|
12 structure CVC3_Solver: CVC3_SOLVER = |
|
13 struct |
|
14 |
|
15 val solver_name = "cvc3" |
|
16 val env_var = "CVC3_SOLVER" |
|
17 |
|
18 val options = ["-lang", "smtlib", "-output-lang", "presentation"] |
|
19 |
|
20 val is_sat = String.isPrefix "Satisfiable." |
|
21 val is_unsat = String.isPrefix "Unsatisfiable." |
|
22 val is_unknown = String.isPrefix "Unknown." |
|
23 |
|
24 fun raise_cex real = raise SMT_Solver.SMT_COUNTEREXAMPLE (real, []) |
|
25 |
|
26 fun core_oracle (output, _) = |
|
27 let |
|
28 val empty_line = (fn "" => true | _ => false) |
|
29 val split_first = (fn [] => ("", []) | l :: ls => (l, ls)) |
|
30 val (l, _) = split_first (snd (chop_while empty_line output)) |
|
31 in |
|
32 if is_unsat l then @{cprop False} |
|
33 else if is_sat l then raise_cex true |
|
34 else if is_unknown l then raise_cex false |
|
35 else raise SMT_Solver.SMT (solver_name ^ " failed") |
|
36 end |
|
37 |
|
38 fun solver oracle _ = { |
|
39 command = {env_var=env_var, remote_name=SOME solver_name}, |
|
40 arguments = options, |
|
41 interface = SMTLIB_Interface.interface, |
|
42 reconstruct = pair o pair [] o oracle } |
|
43 |
|
44 val setup = |
|
45 Thm.add_oracle (Binding.name solver_name, core_oracle) #-> (fn (_, oracle) => |
|
46 Context.theory_map (SMT_Solver.add_solver (solver_name, solver oracle))) |
|
47 |
|
48 end |
|