#
# Option specification file for CVC4
# See src/options/base_options for a description of this file format
#

module STRINGS "options/strings_options.h" Strings theory

option stringExp strings-exp --strings-exp bool :default false :read-write
 experimental features in the theory of strings

# :predicate-include "smt/smt_engine.h"
option stringLB strings-lb --strings-lb=N unsigned :default 0 :predicate unsignedLessEqual2
 the strategy of LB rule application: 0-lazy, 1-eager, 2-no

# :predicate-include "smt/smt_engine.h"
option stdASCII strings-std-ascii --strings-std-ascii bool :default true :predicate unsignedLessEqual2
 the alphabet contains only characters from the standard ASCII or the extended one

option stringFMF strings-fmf --strings-fmf bool :default false :read-write
 the finite model finding used by the theory of strings
 
option stringEager strings-eager --strings-eager bool :default false
 strings eager check

option stringEIT strings-eit --strings-eit bool :default false
 the eager intersection used by the theory of strings

option stringOpt1 strings-opt1 --strings-opt1 bool :default true
 internal option1 for strings: normal form

option stringOpt2 strings-opt2 --strings-opt2 bool :default false
 internal option2 for strings: constant regexp splitting

option stringIgnNegMembership strings-inm --strings-inm bool :default false
 internal for strings: ignore negative membership constraints (fragment checking is needed, left to users for now)

#expert-option stringCharCardinality strings-alphabet-card --strings-alphabet-card=N int16_t :default 128 :read-write
# the cardinality of the characters used by the theory of strings, default 128 (for standard ASCII) or 256 (for extended ASCII)

option stringLazyPreproc strings-lazy-pp --strings-lazy-pp bool :default true
 perform string preprocessing lazily

option stringLenGeqZ strings-len-geqz --strings-len-geqz bool :default false
 strings length greater than zero lemmas

option stringLenNorm strings-len-norm --strings-len-norm bool :default true
 strings length normalization lemma
option stringSplitEmp strings-sp-emp --strings-sp-emp bool :default true
 strings split on empty string
option stringInferSym strings-infer-sym --strings-infer-sym bool :default true
 strings split on empty string
option stringEagerLen strings-eager-len --strings-eager-len bool :default true
 strings eager length lemmas
option stringCheckEntailLen strings-check-entail-len --strings-check-entail-len bool :default true
 check entailment between length terms to reduce splitting
option stringProcessLoop strings-process-loop --strings-process-loop bool :default true
 reduce looping word equations to regular expressions
option stringAbortLoop strings-abort-loop --strings-abort-loop bool :default false
 abort when a looping word equation is encountered
option stringInferAsLemmas strings-infer-as-lemmas --strings-infer-as-lemmas bool :default false
 always send lemmas out instead of making internal inferences
option stringRExplainLemmas strings-rexplain-lemmas --strings-rexplain-lemmas bool :default true
 regression explanations for string lemmas
option stringMinPrefixExplain strings-min-prefix-explain --strings-min-prefix-explain bool :default true
 minimize explanations for prefix of normal forms in strings
option stringGuessModel strings-guess-model --strings-guess-model bool :default false
 use model guessing to avoid string extended function reductions
option stringUfReduct strings-uf-reduct --strings-uf-reduct bool :default false
 use uninterpreted functions when applying extended function reductions
option stringBinaryCsp strings-binary-csp --strings-binary-csp bool :default false
 use binary search when splitting strings
option stringLenPropCsp strings-lprop-csp --strings-lprop-csp bool :default false
 do length propagation based on constant splits


endmodule