author  blanchet 
Thu, 29 Jul 2010 18:45:41 +0200  
changeset 38092  81a003f7de0d 
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child 38094  d01b8119b2e0 
permissions  rwrr 
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(* Title: HOL/Tools/ATP/atp_systems.ML 
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Author: Fabian Immler, TU Muenchen 
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Author: Jasmin Blanchette, TU Muenchen 
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Setup for supported ATPs. 
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*) 
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signature ATP_SYSTEMS = 
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sig 
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datatype failure = 
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Unprovable  IncompleteUnprovable  CantConnect  TimedOut  

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OutOfResources  OldSpass  NoPerl  NoLibwwwPerl  MalformedInput  
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MalformedOutput  UnknownError 
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type prover_config = 

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{exec: string * string, 
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required_execs: (string * string) list, 
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arguments: bool > Time.time > string, 
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proof_delims: (string * string) list, 

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known_failures: (failure * string) list, 

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max_new_relevant_facts_per_iter: int, 

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prefers_theory_relevant: bool, 

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explicit_forall: bool} 

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val string_for_failure : failure > string 
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val known_failure_in_output : 
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string > (failure * string) list > failure option 
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val add_prover: string * prover_config > theory > theory 
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val get_prover: theory > string > prover_config 

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val available_atps: theory > unit 

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val refresh_systems_on_tptp : unit > unit 
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val default_atps_param_value : unit > string 
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val setup : theory > theory 
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end; 
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structure ATP_Systems : ATP_SYSTEMS = 
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struct 
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(* prover configuration *) 
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datatype failure = 
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Unprovable  IncompleteUnprovable  CantConnect  TimedOut  
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OutOfResources  OldSpass  NoPerl  NoLibwwwPerl  MalformedInput  
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MalformedOutput  UnknownError 
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type prover_config = 
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{exec: string * string, 
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required_execs: (string * string) list, 
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arguments: bool > Time.time > string, 
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proof_delims: (string * string) list, 
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known_failures: (failure * string) list, 
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max_new_relevant_facts_per_iter: int, 
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prefers_theory_relevant: bool, 
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explicit_forall: bool} 
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val missing_message_tail = 
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" appears to be missing. You will need to install it if you want to run \ 
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\ATPs remotely." 
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fun string_for_failure Unprovable = "The ATP problem is unprovable." 
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 string_for_failure IncompleteUnprovable = 
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"The ATP cannot prove the problem." 
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 string_for_failure CantConnect = "Can't connect to remote ATP." 
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 string_for_failure TimedOut = "Timed out." 
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 string_for_failure OutOfResources = "The ATP ran out of resources." 
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 string_for_failure OldSpass = 
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"Warning: Isabelle requires a more recent version of SPASS with \ 
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\support for the TPTP syntax. To install it, download and extract the \ 
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\package \"http://isabelle.in.tum.de/dist/contrib/spass3.7.tar.gz\" and \ 

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\add the \"spass3.7\" directory's absolute path to " ^ 

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quote (Path.implode (Path.expand (Path.appends 
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(Path.variable "ISABELLE_HOME_USER" :: 
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map Path.basic ["etc", "components"])))) ^ 
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" on a line of its own." 
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 string_for_failure NoPerl = "Perl" ^ missing_message_tail 
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 string_for_failure NoLibwwwPerl = 
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"The Perl module \"libwwwperl\"" ^ missing_message_tail 
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 string_for_failure MalformedInput = 
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"Internal Isabelle error: The ATP problem is malformed. Please report \ 
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\this to the Isabelle developers." 
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 string_for_failure MalformedOutput = "Error: The ATP output is malformed." 
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 string_for_failure UnknownError = "Error: An unknown ATP error occurred." 
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fun known_failure_in_output output = 
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find_first (fn (_, pattern) => String.isSubstring pattern output) 
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#> Option.map fst 
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val known_perl_failures = 
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[(NoPerl, "env: perl"), 
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(NoLibwwwPerl, "Can't locate HTTP")] 
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(* named provers *) 
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structure Data = Theory_Data 
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( 

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type T = (prover_config * stamp) Symtab.table 

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val empty = Symtab.empty 

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val extend = I 

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fun merge data : T = Symtab.merge (eq_snd op =) data 

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handle Symtab.DUP name => error ("Duplicate ATP: " ^ quote name ^ ".") 

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) 

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fun add_prover (name, config) thy = 
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Data.map (Symtab.update_new (name, (config, stamp ()))) thy 

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fun get_prover thy name = 
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the (Symtab.lookup (Data.get thy) name) > fst 

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handle Option.Option => error ("Unknown ATP: " ^ name ^ ".") 

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fun available_atps thy = 
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priority ("Available ATPs: " ^ 

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commas (sort_strings (Symtab.keys (Data.get thy))) ^ ".") 

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fun available_atps thy = 
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priority ("Available ATPs: " ^ 

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commas (sort_strings (Symtab.keys (Data.get thy))) ^ ".") 

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fun to_generous_secs time = (Time.toMilliseconds time + 999) div 1000 
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(* E prover *) 
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val tstp_proof_delims = 
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("# SZS output start CNFRefutation.", "# SZS output end CNFRefutation") 
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val e_config : prover_config = 
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{exec = ("E_HOME", "eproof"), 
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required_execs = [], 
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arguments = fn _ => fn timeout => 
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"tstpin tstpout l5 xAutoDev tAutoDev silent cpulimit=" ^ 
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string_of_int (to_generous_secs timeout), 

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proof_delims = [tstp_proof_delims], 
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known_failures = 
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[(Unprovable, "SZS status: CounterSatisfiable"), 
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(Unprovable, "SZS status CounterSatisfiable"), 
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(TimedOut, "Failure: Resource limit exceeded (time)"), 
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(TimedOut, "time limit exceeded"), 
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(OutOfResources, 
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"# Cannot determine problem status within resource limit"), 
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(OutOfResources, "SZS status: ResourceOut"), 
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(OutOfResources, "SZS status ResourceOut")], 
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max_new_relevant_facts_per_iter = 90 (* FIXME *), 
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prefers_theory_relevant = false, 
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explicit_forall = false} 
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val e = ("e", e_config) 
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(* The "VarWeight=3" option helps the higherorder problems, probably by 
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counteracting the presence of "hAPP". *) 
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val spass_config : prover_config = 
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{exec = ("ISABELLE_ATP", "scripts/spass"), 
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required_execs = [("SPASS_HOME", "SPASS")], 
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(* "div 2" accounts for the fact that SPASS is often run twice. *) 
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arguments = fn complete => fn timeout => 
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("Auto PGiven=0 PProblem=0 Splits=0 FullRed=0 DocProof \ 
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\VarWeight=3 TimeLimit=" ^ 
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string_of_int (to_generous_secs timeout div 2)) 
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> not complete ? prefix "SOS=1 ", 
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proof_delims = [("Here is a proof", "Formulae used in the proof")], 
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known_failures = 
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known_perl_failures @ 
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[(IncompleteUnprovable, "SPASS beiseite: Completion found"), 
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(TimedOut, "SPASS beiseite: Ran out of time"), 
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(OutOfResources, "SPASS beiseite: Maximal number of loops exceeded"), 
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(MalformedInput, "Undefined symbol"), 
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(MalformedInput, "Free Variable"), 
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(OldSpass, "tptp2dfg")], 
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max_new_relevant_facts_per_iter = 35 (* FIXME *), 
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169 
prefers_theory_relevant = true, 
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explicit_forall = true} 
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val spass = ("spass", spass_config) 
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172 

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173 
(* Vampire *) 
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174 

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175 
val vampire_config : prover_config = 
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176 
{exec = ("VAMPIRE_HOME", "vampire"), 
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177 
required_execs = [], 
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178 
arguments = fn _ => fn timeout => 
38033  179 
"mode casc t " ^ string_of_int (to_generous_secs timeout) ^ 
180 
" input_file ", 

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181 
proof_delims = 
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182 
[("=========== Refutation ==========", 
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"======= End of refutation ======="), 
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("% SZS output start Refutation", "% SZS output end Refutation"), 
185 
("% SZS output start Proof", "% SZS output end Proof")], 

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186 
known_failures = 
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187 
[(Unprovable, "UNPROVABLE"), 
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188 
(IncompleteUnprovable, "CANNOT PROVE"), 
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189 
(TimedOut, "SZS status Timeout"), 
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190 
(Unprovable, "Satisfiability detected"), 
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191 
(OutOfResources, "Refutation not found")], 
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192 
max_new_relevant_facts_per_iter = 50 (* FIXME *), 
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193 
prefers_theory_relevant = false, 
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194 
explicit_forall = false} 
38023  195 
val vampire = ("vampire", vampire_config) 
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196 

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197 
(* Remote prover invocation via SystemOnTPTP *) 
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198 

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199 
val systems = Synchronized.var "atp_systems" ([] : string list) 
31835  200 

201 
fun get_systems () = 

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202 
case bash_output "\"$ISABELLE_ATP/scripts/remote_atp\" w 2>&1" of 
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203 
(answer, 0) => split_lines answer 
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204 
 (answer, _) => 
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error (case known_failure_in_output answer known_perl_failures of 
206 
SOME failure => string_for_failure failure 

207 
 NONE => perhaps (try (unsuffix "\n")) answer ^ ".") 

31835  208 

35867  209 
fun refresh_systems_on_tptp () = 
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210 
Synchronized.change systems (fn _ => get_systems ()) 
31835  211 

212 
fun get_system prefix = Synchronized.change_result systems (fn systems => 

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213 
(if null systems then get_systems () else systems) 
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214 
> `(find_first (String.isPrefix prefix))); 
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215 

32948  216 
fun the_system prefix = 
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217 
(case get_system prefix of 
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218 
NONE => error ("System " ^ quote prefix ^ " not available at SystemOnTPTP.") 
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219 
 SOME sys => sys); 
31835  220 

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221 
fun remote_config atp_prefix 
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222 
({proof_delims, known_failures, max_new_relevant_facts_per_iter, 
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223 
prefers_theory_relevant, explicit_forall, ...} : prover_config) 
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224 
: prover_config = 
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225 
{exec = ("ISABELLE_ATP", "scripts/remote_atp"), 
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226 
required_execs = [], 
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227 
arguments = fn _ => fn timeout => 
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228 
" t " ^ string_of_int (to_generous_secs timeout) ^ " s " ^ 
36382  229 
the_system atp_prefix, 
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230 
proof_delims = insert (op =) tstp_proof_delims proof_delims, 
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231 
known_failures = 
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232 
known_failures @ known_perl_failures @ 
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233 
[(CantConnect, "HTTPError"), 
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234 
(TimedOut, "says Timeout")], 
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235 
max_new_relevant_facts_per_iter = max_new_relevant_facts_per_iter, 
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236 
prefers_theory_relevant = prefers_theory_relevant, 
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237 
explicit_forall = explicit_forall} 
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238 

38023  239 
val remote_name = prefix "remote_" 
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240 

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241 
fun remote_prover (name, config) atp_prefix = 
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242 
(remote_name name, remote_config atp_prefix config) 
38023  243 

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244 
val remote_e = remote_prover e "EP" 
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245 
val remote_vampire = remote_prover vampire "Vampire9" 
28592  246 

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247 
fun is_installed ({exec, required_execs, ...} : prover_config) = 
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248 
forall (curry (op <>) "" o getenv o fst) (exec :: required_execs) 
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249 
fun maybe_remote (name, config) = 
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250 
name > not (is_installed config) ? remote_name 
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251 

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252 
fun default_atps_param_value () = 
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253 
space_implode " " ([maybe_remote e] @ 
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254 
(if is_installed (snd spass) then [fst spass] else []) @ 
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255 
[remote_name (fst vampire)]) 
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256 

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257 
val provers = [e, spass, vampire, remote_e, remote_vampire] 
38023  258 
val setup = fold add_prover provers 
35867  259 

28592  260 
end; 