def_module_params(module_name='smt',
                  class_name='smt_params_helper',
                  description='smt solver based on lazy smt',
                  export=True,
                  params=(('auto_config', BOOL, True, 'automatically configure solver'),
                          ('logic', SYMBOL, '', 'logic used to setup the SMT solver'),
                          ('random_seed', UINT, 0, 'random seed for the smt solver'),
                          ('relevancy', UINT, 2, 'relevancy propagation heuristic: 0 - disabled, 1 - relevancy is tracked by only affects quantifier instantiation, 2 - relevancy is tracked, and an atom is only asserted if it is relevant'),
                          ('macro_finder', BOOL, False, 'try to find universally quantified formulas that can be viewed as macros'),
                          ('quasi_macros', BOOL, False, 'try to find universally quantified formulas that are quasi-macros'),
                          ('restricted_quasi_macros', BOOL, False, 'try to find universally quantified formulas that are restricted quasi-macros'),
                          ('ematching', BOOL, True, 'E-Matching based quantifier instantiation'),
                          ('phase_selection', UINT, 3, 'phase selection heuristic: 0 - always false, 1 - always true, 2 - phase caching, 3 - phase caching conservative, 4 - phase caching conservative 2, 5 - random, 6 - number of occurrences, 7 - theory'),
	                  ('phase_caching_on', UINT, 400, 'number of conflicts while phase caching is on'),
	                  ('phase_caching_off', UINT, 100, 'number of conflicts while phase caching is off'),
                          ('restart_strategy', UINT, 1, '0 - geometric, 1 - inner-outer-geometric, 2 - luby, 3 - fixed, 4 - arithmetic'),
                          ('restart_factor', DOUBLE, 1.1, 'when using geometric (or inner-outer-geometric) progression of restarts, it specifies the constant used to multiply the current restart threshold'),
                          ('case_split', UINT, 1, '0 - case split based on variable activity, 1 - similar to 0, but delay case splits created during the search, 2 - similar to 0, but cache the relevancy, 3 - case split based on relevancy (structural splitting), 4 - case split on relevancy and activity, 5 - case split on relevancy and current goal, 6 - activity-based case split with theory-aware branching activity'),
                          ('delay_units', BOOL, False, 'if true then z3 will not restart when a unit clause is learned'),
                          ('delay_units_threshold', UINT, 32, 'maximum number of learned unit clauses before restarting, ignored if delay_units is false'),
                          ('pull_nested_quantifiers', BOOL, False, 'pull nested quantifiers'),
                          ('refine_inj_axioms', BOOL, True, 'refine injectivity axioms'),
	                  ('candidate_models', BOOL, False, 'create candidate models even when quantifier or theory reasoning is incomplete'),
                          ('max_conflicts', UINT, UINT_MAX, 'maximum number of conflicts before giving up.'),
                          ('restart.max', UINT, UINT_MAX, 'maximal number of restarts.'),
	                  ('cube_depth', UINT, 1, 'cube depth.'),
                          ('threads', UINT, 1, 'maximal number of parallel threads.'),
                          ('threads.max_conflicts', UINT, 400, 'maximal number of conflicts between rounds of cubing for parallel SMT'),
                          ('threads.cube_frequency', UINT, 2, 'frequency for using cubing'), 
                          ('mbqi', BOOL, True, 'model based quantifier instantiation (MBQI)'),
                          ('mbqi.max_cexs', UINT, 1, 'initial maximal number of counterexamples used in MBQI, each counterexample generates a quantifier instantiation'),
                          ('mbqi.max_cexs_incr', UINT, 0, 'increment for MBQI_MAX_CEXS, the increment is performed after each round of MBQI'),
                          ('mbqi.max_iterations', UINT, 1000, 'maximum number of rounds of MBQI'),
                          ('mbqi.trace', BOOL, False, 'generate tracing messages for Model Based Quantifier Instantiation (MBQI). It will display a message before every round of MBQI, and the quantifiers that were not satisfied'),
                          ('mbqi.force_template', UINT, 10, 'some quantifiers can be used as templates for building interpretations for functions. Z3 uses heuristics to decide whether a quantifier will be used as a template or not. Quantifiers with weight >= mbqi.force_template are forced to be used as a template'),
                          ('mbqi.id', STRING, '', 'Only use model-based instantiation for quantifiers with id\'s beginning with string'),
                          ('q.lift_ite', UINT, 0, '0 - don not lift non-ground if-then-else, 1 - use conservative ite lifting, 2 - use full lifting of if-then-else under quantifiers'),
                          ('qi.profile', BOOL, False, 'profile quantifier instantiation'),
                          ('qi.profile_freq', UINT, UINT_MAX, 'how frequent results are reported by qi.profile'),
                          ('qi.max_instances', UINT, UINT_MAX, 'maximum number of quantifier instantiations'),
                          ('qi.eager_threshold', DOUBLE, 10.0, 'threshold for eager quantifier instantiation'),
                          ('qi.lazy_threshold', DOUBLE, 20.0, 'threshold for lazy quantifier instantiation'),
                          ('qi.cost', STRING, '(+ weight generation)', 'expression specifying what is the cost of a given quantifier instantiation'),
                          ('qi.max_multi_patterns', UINT, 0, 'specify the number of extra multi patterns'),
                          ('qi.quick_checker', UINT, 0, 'specify quick checker mode, 0 - no quick checker, 1 - using unsat instances, 2 - using both unsat and no-sat instances'),
                          ('induction', BOOL, False, 'enable generation of induction lemmas'),
                          ('bv.reflect', BOOL, True, 'create enode for every bit-vector term'),
                          ('bv.enable_int2bv', BOOL, True, 'enable support for int2bv and bv2int operators'),
	                  ('bv.eq_axioms', BOOL, True, 'add dynamic equality axioms'),
                          ('bv.watch_diseq', BOOL, False, 'use watch lists instead of eager axioms for bit-vectors'),
                          ('bv.delay', BOOL, True, 'delay internalize expensive bit-vector operations'),
                          ('arith.random_initial_value', BOOL, False, 'use random initial values in the simplex-based procedure for linear arithmetic'),
                          ('arith.solver', UINT, 6, 'arithmetic solver: 0 - no solver, 1 - bellman-ford based solver (diff. logic only), 2 - simplex based solver, 3 - floyd-warshall based solver (diff. logic only) and no theory combination 4 - utvpi, 5 - infinitary lra, 6 - lra solver'),
                          ('arith.nl', BOOL, True, '(incomplete) nonlinear arithmetic support based on Groebner basis and interval propagation, relevant only if smt.arith.solver=2'),
                          ('arith.nl.nra', BOOL, True, 'call nra_solver when incremental lianirization does not produce a lemma, this option is ignored when arith.nl=false, relevant only if smt.arith.solver=6'),
                          ('arith.nl.branching', BOOL, True, 'branching on integer variables in non linear clusters, relevant only if smt.arith.solver=2'),
                          ('arith.nl.rounds', UINT, 1024, 'threshold for number of (nested) final checks for non linear arithmetic, relevant only if smt.arith.solver=2'),
                          ('arith.nl.order', BOOL, True, 'run order lemmas'),
                          ('arith.nl.expp', BOOL, False, 'expensive patching'),
                          ('arith.nl.tangents', BOOL, True, 'run tangent lemmas'),
                          ('arith.nl.horner', BOOL, True, 'run horner\'s heuristic'),
                          ('arith.nl.horner_subs_fixed', UINT, 2, '0 - no subs, 1 - substitute, 2 - substitute fixed zeros only'),
                          ('arith.nl.horner_frequency', UINT, 4, 'horner\'s call frequency'),
                          ('arith.nl.horner_row_length_limit', UINT, 10, 'row is disregarded by the heuristic if its length is longer than the value'),
                          ('arith.nl.grobner_frequency', UINT, 4, 'grobner\'s call frequency'),
                          ('arith.nl.grobner', BOOL, True, 'run grobner\'s basis heuristic'),
                          ('arith.nl.grobner_eqs_growth', UINT, 10, 'grobner\'s number of equalities growth '),
                          ('arith.nl.grobner_expr_size_growth', UINT, 2, 'grobner\'s maximum expr size growth'),
                          ('arith.nl.grobner_expr_degree_growth', UINT, 2, 'grobner\'s maximum expr degree growth'),
                          ('arith.nl.grobner_max_simplified', UINT, 10000, 'grobner\'s maximum number of simplifications'),
                          ('arith.nl.grobner_cnfl_to_report', UINT, 1, 'grobner\'s maximum number of conflicts to report'),
                          ('arith.nl.gr_q', UINT, 10, 'grobner\'s quota'),
                          ('arith.nl.grobner_subs_fixed', UINT, 2, '0 - no subs, 1 - substitute, 2 - substitute fixed zeros only'),                          
                          ('arith.propagate_eqs', BOOL, True, 'propagate (cheap) equalities'),
                          ('arith.propagation_mode', UINT, 1, '0 - no propagation, 1 - propagate existing literals, 2 - refine finite bounds'),
                          ('arith.reflect', BOOL, True, 'reflect arithmetical operators to the congruence closure'),
                          ('arith.branch_cut_ratio', UINT, 2, 'branch/cut ratio for linear integer arithmetic'),
                          ('arith.int_eq_branch', BOOL, False, 'branching using derived integer equations'),
                          ('arith.ignore_int', BOOL, False, 'treat integer variables as real'),
                          ('arith.dump_lemmas', BOOL, False, 'dump arithmetic theory lemmas to files'),
                          ('arith.greatest_error_pivot', BOOL, False, 'Pivoting strategy'),
                          ('arith.eager_eq_axioms', BOOL, True, 'eager equality axioms'),
                          ('arith.auto_config_simplex', BOOL, False, 'force simplex solver in auto_config'),
                          ('arith.rep_freq', UINT, 0, 'the report frequency, in how many iterations print the cost and other info'),
                          ('arith.min', BOOL, False, 'minimize cost'),
                          ('arith.print_stats', BOOL, False, 'print statistic'),
                          ('arith.simplex_strategy', UINT, 0, 'simplex strategy for the solver'),
                          ('arith.enable_hnf', BOOL, True, 'enable hnf (Hermite Normal Form) cuts'),
                          ('arith.bprop_on_pivoted_rows', BOOL, True, 'propagate bounds on rows changed by the pivot operation'),
                          ('arith.print_ext_var_names', BOOL, False, 'print external variable names'),
                          ('pb.conflict_frequency', UINT, 1000, 'conflict frequency for Pseudo-Boolean theory'),
                          ('pb.learn_complements', BOOL, True, 'learn complement literals for Pseudo-Boolean theory'),
                          ('array.weak', BOOL, False, 'weak array theory'),
                          ('array.extensional', BOOL, True, 'extensional array theory'),
                          ('clause_proof', BOOL, False, 'record a clausal proof'),
                          ('dack', UINT, 1, '0 - disable dynamic ackermannization, 1 - expand Leibniz\'s axiom if a congruence is the root of a conflict, 2 - expand Leibniz\'s axiom if a congruence is used during conflict resolution'),
                          ('dack.eq', BOOL, False, 'enable dynamic ackermannization for transtivity of equalities'),
                          ('dack.factor', DOUBLE, 0.1, 'number of instance per conflict'),
                          ('dack.gc', UINT, 2000, 'Dynamic ackermannization garbage collection frequency (per conflict)'),
                          ('dack.gc_inv_decay', DOUBLE, 0.8, 'Dynamic ackermannization garbage collection decay'),
                          ('dack.threshold', UINT, 10, ' number of times the congruence rule must be used before Leibniz\'s axiom is expanded'),
                          ('theory_case_split', BOOL, False, 'Allow the context to use heuristics involving theory case splits, which are a set of literals of which exactly one can be assigned True. If this option is false, the context will generate extra axioms to enforce this instead.'),
                          ('string_solver', SYMBOL, 'seq', 'solver for string/sequence theories. options are: \'z3str3\' (specialized string solver), \'seq\' (sequence solver), \'auto\' (use static features to choose best solver), \'empty\' (a no-op solver that forces an answer unknown if strings were used), \'none\' (no solver)'),
                          ('core.validate', BOOL, False, '[internal] validate unsat core produced by SMT context. This option is intended for debugging'),
                          ('seq.split_w_len', BOOL, True, 'enable splitting guided by length constraints'),
                          ('seq.validate', BOOL, False, 'enable self-validation of theory axioms created by seq theory'),
	                  ('seq.use_unicode', BOOL, False, 'dev flag (not for users) enable unicode semantics'),
                          ('str.strong_arrangements', BOOL, True, 'assert equivalences instead of implications when generating string arrangement axioms'),
                          ('str.aggressive_length_testing', BOOL, False, 'prioritize testing concrete length values over generating more options'),
                          ('str.aggressive_value_testing', BOOL, False, 'prioritize testing concrete string constant values over generating more options'),
                          ('str.aggressive_unroll_testing', BOOL, True, 'prioritize testing concrete regex unroll counts over generating more options'),
                          ('str.fast_length_tester_cache', BOOL, False, 'cache length tester constants instead of regenerating them'),
                          ('str.fast_value_tester_cache', BOOL, True, 'cache value tester constants instead of regenerating them'),
                          ('str.string_constant_cache', BOOL, True, 'cache all generated string constants generated from anywhere in theory_str'),
                          ('theory_aware_branching', BOOL, False, 'Allow the context to use extra information from theory solvers regarding literal branching prioritization.'),
                          ('str.overlap_priority', DOUBLE, -0.1, 'theory-aware priority for overlapping variable cases; use smt.theory_aware_branching=true'),
                          ('str.regex_automata_difficulty_threshold', UINT, 1000, 'difficulty threshold for regex automata heuristics'),
                          ('str.regex_automata_intersection_difficulty_threshold', UINT, 1000, 'difficulty threshold for regex intersection heuristics'),
                          ('str.regex_automata_failed_automaton_threshold', UINT, 10, 'number of failed automaton construction attempts after which a full automaton is automatically built'),
                          ('str.regex_automata_failed_intersection_threshold', UINT, 10, 'number of failed automaton intersection attempts after which intersection is always computed'),
                          ('str.regex_automata_length_attempt_threshold', UINT, 10, 'number of length/path constraint attempts before checking unsatisfiability of regex terms'),
                          ('str.fixed_length_refinement', BOOL, False, 'use abstraction refinement in fixed-length equation solver (Z3str3 only)'),
                          ('str.fixed_length_naive_cex', BOOL, True, 'construct naive counterexamples when fixed-length model construction fails for a given length assignment (Z3str3 only)'),
                          ('core.minimize', BOOL, False, 'minimize unsat core produced by SMT context'),
                          ('core.extend_patterns', BOOL, False, 'extend unsat core with literals that trigger (potential) quantifier instances'),
                          ('core.extend_patterns.max_distance', UINT, UINT_MAX, 'limits the distance of a pattern-extended unsat core'),
                          ('core.extend_nonlocal_patterns', BOOL, False, 'extend unsat cores with literals that have quantifiers with patterns that contain symbols which are not in the quantifier\'s body'),
                          ('lemma_gc_strategy', UINT, 0, 'lemma garbage collection strategy: 0 - fixed, 1 - geometric, 2 - at restart, 3 - none'),
                          ('dt_lazy_splits', UINT, 1, 'How lazy datatype splits are performed: 0- eager, 1- lazy for infinite types, 2- lazy')
                          ))

