(* Title: HOL/Tools/ATP_Manager/atp_wrapper.ML
Author: Fabian Immler, TU Muenchen
Wrapper functions for external ATPs.
*)
signature ATP_WRAPPER =
sig
(*hooks for problem files*)
val destdir: string Config.T
val problem_prefix: string Config.T
val setup: theory -> theory
(*prover configuration, problem format, and prover result*)
type prover_config =
{command: Path.T,
arguments: int -> string,
max_new_clauses: int,
insert_theory_const: bool,
emit_structured_proof: bool}
type atp_problem =
{with_full_types: bool,
subgoal: int,
goal: Proof.context * (thm list * thm),
axiom_clauses: (thm * (string * int)) list option,
filtered_clauses: (thm * (string * int)) list option}
val atp_problem_of_goal: bool -> int -> Proof.context * (thm list * thm) -> atp_problem
type prover_result =
{success: bool,
message: string,
theorem_names: string list,
runtime: int,
proof: string,
internal_thm_names: string Vector.vector,
filtered_clauses: (thm * (string * int)) list}
type prover = atp_problem -> int -> prover_result
(*common provers*)
val vampire: string * prover
val vampire_full: string * prover
val eprover: string * prover
val eprover_full: string * prover
val spass: string * prover
val spass_no_tc: string * prover
val remote_vampire: string * prover
val remote_eprover: string * prover
val remote_spass: string * prover
val refresh_systems: unit -> unit
end;
structure ATP_Wrapper: ATP_WRAPPER =
struct
(** generic ATP wrapper **)
(* hooks for writing problem files *)
val (destdir, destdir_setup) = Attrib.config_string "atp_destdir" "";
(*Empty string means create files in Isabelle's temporary files directory.*)
val (problem_prefix, problem_prefix_setup) =
Attrib.config_string "atp_problem_prefix" "prob";
val setup = destdir_setup #> problem_prefix_setup;
(* prover configuration, problem format, and prover result *)
type prover_config =
{command: Path.T,
arguments: int -> string,
max_new_clauses: int,
insert_theory_const: bool,
emit_structured_proof: bool};
type atp_problem =
{with_full_types: bool,
subgoal: int,
goal: Proof.context * (thm list * thm),
axiom_clauses: (thm * (string * int)) list option,
filtered_clauses: (thm * (string * int)) list option};
fun atp_problem_of_goal with_full_types subgoal goal : atp_problem =
{with_full_types = with_full_types,
subgoal = subgoal,
goal = goal,
axiom_clauses = NONE,
filtered_clauses = NONE};
type prover_result =
{success: bool,
message: string,
theorem_names: string list, (*relevant theorems*)
runtime: int, (*user time of the ATP, in milliseconds*)
proof: string,
internal_thm_names: string Vector.vector,
filtered_clauses: (thm * (string * int)) list};
type prover = atp_problem -> int -> prover_result;
(* basic template *)
fun with_path cleanup after f path =
Exn.capture f path
|> tap (fn _ => cleanup path)
|> Exn.release
|> tap (after path);
fun external_prover relevance_filter preparer writer cmd args find_failure produce_answer
axiom_clauses filtered_clauses name subgoalno goal =
let
(* get clauses and prepare them for writing *)
val (ctxt, (chain_ths, th)) = goal
val thy = ProofContext.theory_of ctxt
val chain_ths = map (Thm.put_name_hint ResReconstruct.chained_hint) chain_ths
val goal_cls = #1 (ResAxioms.neg_conjecture_clauses ctxt th subgoalno)
val _ = app (fn th => Output.debug (fn _ => Display.string_of_thm ctxt th)) goal_cls
val the_filtered_clauses =
case filtered_clauses of
NONE => relevance_filter goal goal_cls
| SOME fcls => fcls
val the_axiom_clauses =
case axiom_clauses of
NONE => the_filtered_clauses
| SOME axcls => axcls
val (thm_names, clauses) =
preparer goal_cls chain_ths the_axiom_clauses the_filtered_clauses thy
(* path to unique problem file *)
val destdir' = Config.get ctxt destdir
val problem_prefix' = Config.get ctxt problem_prefix
fun prob_pathname nr =
let val probfile = Path.basic (problem_prefix' ^ serial_string () ^ "_" ^ string_of_int nr)
in if destdir' = "" then File.tmp_path probfile
else if File.exists (Path.explode (destdir'))
then Path.append (Path.explode (destdir')) probfile
else error ("No such directory: " ^ destdir')
end
(* write out problem file and call prover *)
fun cmd_line probfile = "TIMEFORMAT='%3U'; { time " ^ space_implode " "
[File.shell_path cmd, args, File.platform_path probfile] ^ " ; } 2>&1"
fun split_time s =
let
val split = String.tokens (fn c => str c = "\n")
val (proof, t) = s |> split |> split_last |> apfst cat_lines
fun as_num f = f >> (fst o read_int)
val num = as_num (Scan.many1 Symbol.is_ascii_digit)
val digit = Scan.one Symbol.is_ascii_digit
val num3 = as_num (digit ::: digit ::: (digit >> single))
val time = num --| Scan.$$ "." -- num3 >> (fn (a, b) => a * 1000 + b)
val as_time = the_default 0 o Scan.read Symbol.stopper time o explode
in (proof, as_time t) end
fun run_on probfile =
if File.exists cmd
then
writer probfile clauses
|> pair (apfst split_time (system_out (cmd_line probfile)))
else error ("Bad executable: " ^ Path.implode cmd)
(* if problemfile has not been exported, delete problemfile; otherwise export proof, too *)
fun cleanup probfile = if destdir' = "" then try File.rm probfile else NONE
fun export probfile (((proof, _), _), _) = if destdir' = "" then ()
else File.write (Path.explode (Path.implode probfile ^ "_proof")) proof
val (((proof, time), rc), conj_pos) = with_path cleanup export run_on
(prob_pathname subgoalno)
(* check for success and print out some information on failure *)
val failure = find_failure proof
val success = rc = 0 andalso is_none failure
val (message, real_thm_names) =
if is_some failure then ("External prover failed.", [])
else if rc <> 0 then ("External prover failed: " ^ proof, [])
else apfst (fn s => "Try this command: " ^ s)
(produce_answer name (proof, thm_names, conj_pos, ctxt, th, subgoalno))
val _ = Output.debug (fn () => "Sledgehammer response (rc = " ^ string_of_int rc ^ "):\n" ^ proof)
in
{success = success, message = message,
theorem_names = real_thm_names, runtime = time, proof = proof,
internal_thm_names = thm_names, filtered_clauses = the_filtered_clauses}
end
(* generic TPTP-based provers *)
fun gen_tptp_prover (name, prover_config) problem timeout =
let
val {max_new_clauses, insert_theory_const, emit_structured_proof, command, arguments} =
prover_config
val {with_full_types, subgoal, goal, axiom_clauses, filtered_clauses} = problem
in
external_prover
(ResAtp.get_relevant max_new_clauses insert_theory_const)
(ResAtp.prepare_clauses false)
(ResHolClause.tptp_write_file with_full_types)
command
(arguments timeout)
ResReconstruct.find_failure
(if emit_structured_proof then ResReconstruct.structured_proof
else ResReconstruct.lemma_list false)
axiom_clauses
filtered_clauses
name
subgoal
goal
end
fun tptp_prover (name, config) = (name, gen_tptp_prover (name, config))
(** common provers **)
(* Vampire *)
(*NB: Vampire does not work without explicit timelimit*)
val vampire_max_new_clauses = 60
val vampire_insert_theory_const = false
fun vampire_prover_config full : prover_config =
{command = Path.explode "$VAMPIRE_HOME/vampire",
arguments = (fn timeout => "--output_syntax tptp --mode casc" ^
" -t " ^ string_of_int timeout),
max_new_clauses = vampire_max_new_clauses,
insert_theory_const = vampire_insert_theory_const,
emit_structured_proof = full}
val vampire = tptp_prover ("vampire", vampire_prover_config false)
val vampire_full = tptp_prover ("vampire_full", vampire_prover_config true)
(* E prover *)
val eprover_max_new_clauses = 100
val eprover_insert_theory_const = false
fun eprover_config full : prover_config =
{command = Path.explode "$E_HOME/eproof",
arguments = (fn timeout => "--tstp-in --tstp-out -l5 -xAutoDev -tAutoDev" ^
" --silent --cpu-limit=" ^ string_of_int timeout),
max_new_clauses = eprover_max_new_clauses,
insert_theory_const = eprover_insert_theory_const,
emit_structured_proof = full}
val eprover = tptp_prover ("e", eprover_config false)
val eprover_full = tptp_prover ("e_full", eprover_config true)
(* SPASS *)
val spass_max_new_clauses = 40
val spass_insert_theory_const = true
fun spass_config insert_theory_const: prover_config =
{command = Path.explode "$SPASS_HOME/SPASS",
arguments = (fn timeout => "-Auto -SOS=1 -PGiven=0 -PProblem=0 -Splits=0" ^
" -FullRed=0 -DocProof -TimeLimit=" ^ string_of_int timeout),
max_new_clauses = spass_max_new_clauses,
insert_theory_const = insert_theory_const,
emit_structured_proof = false}
fun gen_dfg_prover (name, prover_config) problem timeout =
let
val {max_new_clauses, insert_theory_const, emit_structured_proof, command, arguments} =
prover_config
val {with_full_types, subgoal, goal, axiom_clauses, filtered_clauses} = problem
in
external_prover
(ResAtp.get_relevant max_new_clauses insert_theory_const)
(ResAtp.prepare_clauses true)
(ResHolClause.dfg_write_file with_full_types)
command
(arguments timeout)
ResReconstruct.find_failure
(ResReconstruct.lemma_list true)
axiom_clauses
filtered_clauses
name
subgoal
goal
end
fun dfg_prover (name, config) = (name, gen_dfg_prover (name, config))
val spass = dfg_prover ("spass", spass_config spass_insert_theory_const)
val spass_no_tc = dfg_prover ("spass_no_tc", spass_config false)
(* remote prover invocation via SystemOnTPTP *)
val systems =
Synchronized.var "atp_wrapper_systems" ([]: string list);
fun get_systems () =
let
val (answer, rc) = system_out ("\"$ISABELLE_ATP_MANAGER/SystemOnTPTP\" -w")
in
if rc <> 0 then error ("Failed to get available systems from SystemOnTPTP:\n" ^ answer)
else split_lines answer
end;
fun refresh_systems () = Synchronized.change systems (fn _ =>
get_systems ());
fun get_system prefix = Synchronized.change_result systems (fn systems =>
(if null systems then get_systems () else systems)
|> ` (find_first (String.isPrefix prefix)));
fun get_the_system prefix =
(case get_system prefix of
NONE => error ("No system like " ^ quote prefix ^ " at SystemOnTPTP")
| SOME sys => sys)
fun remote_prover_config prover_prefix args max_new insert_tc: prover_config =
{command = Path.explode "$ISABELLE_ATP_MANAGER/SystemOnTPTP",
arguments = (fn timeout => args ^ " -t " ^ string_of_int timeout ^ " -s " ^
get_the_system prover_prefix),
max_new_clauses = max_new,
insert_theory_const = insert_tc,
emit_structured_proof = false}
val remote_vampire = tptp_prover ("remote_vampire", remote_prover_config
"Vampire---9" "" vampire_max_new_clauses vampire_insert_theory_const)
val remote_eprover = tptp_prover ("remote_e", remote_prover_config
"EP---" "" eprover_max_new_clauses eprover_insert_theory_const)
val remote_spass = tptp_prover ("remote_spass", remote_prover_config
"SPASS---" "-x" spass_max_new_clauses spass_insert_theory_const)
end;