size_t default_constant_strategy(invariant_programt &program,
const size_t max_length)
{
const typet type(cegis_default_integer_type());
const bv_spect spec(type);
add_danger_constant(program, from_integer(spec.max_value().to_ulong(), type));
add_danger_constant(program, from_integer(0u, type));
return std::max(size_t(1u), literals_constant_strategy(program, max_length));
//return 2u + literals_constant_strategy(program, max_length);
/*for (size_t i=0; i < max_length; ++i)
{
const side_effect_expr_nondett value(type);
std::string name(NONDET_PREFIX);
add_danger_constant(program, name+=integer2string(i), value);
}
return 2u + max_length + literals_constant_strategy(program, max_length);*/
}
size_t literals_constant_strategy(invariant_programt &program,
const size_t max_length)
{
const std::vector<constant_exprt> lit(collect_literal_constants(program));
size_t max_word_width=0u;
for (const constant_exprt &expr : lit)
{
add_danger_constant(program, expr);
// XXX: Add negation of every constant?
// if (!expr.is_zero()) add_danger_constant(program, unary_minus_exprt(expr));
max_word_width=std::max(max_word_width, get_min_word_width(expr));
}
return max_word_width;
}
