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4 changes: 2 additions & 2 deletions src/ebmc/ebmc_solver_factory.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -145,8 +145,8 @@ ebmc_solver_factoryt ebmc_solver_factory(const cmdlinet &cmdline)
if(cmdline.isset("cadical"))
{
#ifdef SATCHECK_CADICAL
sat_solver =
std::unique_ptr<propt>(new satcheck_cadicalt{message_handler});
sat_solver = std::unique_ptr<propt>(
new satcheck_cadical_preprocessingt{message_handler});
#else
throw ebmc_errort() << "support for Cadical not configured";
#endif
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8 changes: 4 additions & 4 deletions src/verilog/aval_bval_encoding.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -339,12 +339,12 @@ exprt aval_bval(const not_exprt &expr)
exprt aval_bval(const power_exprt &expr)
{
PRECONDITION(is_four_valued(expr.type()));
PRECONDITION(is_aval_bval(expr.lhs()));
PRECONDITION(is_aval_bval(expr.rhs()));
PRECONDITION(is_aval_bval(expr.base()));
PRECONDITION(is_aval_bval(expr.exponent()));

auto has_xz = or_exprt{::has_xz(expr.lhs()), ::has_xz(expr.rhs())};
auto has_xz = or_exprt{::has_xz(expr.base()), ::has_xz(expr.exponent())};
auto power_expr =
power_exprt{aval_underlying(expr.lhs()), aval_underlying(expr.rhs())};
power_exprt{aval_underlying(expr.base()), aval_underlying(expr.exponent())};
auto x = make_x(expr.type());
return if_exprt{has_xz, x, aval_bval_conversion(power_expr, x.type())};
}
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18 changes: 9 additions & 9 deletions src/verilog/verilog_lowering.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -208,21 +208,21 @@ exprt verilog_lowering(exprt expr)
else
{
DATA_INVARIANT(
power_expr.lhs().type() == power_expr.type(),
power_expr.base().type() == power_expr.type(),
"power expression type consistency");

auto rhs_int = numeric_cast<std::size_t>(power_expr.rhs());
if(rhs_int.has_value())
auto exponent_int = numeric_cast<std::size_t>(power_expr.exponent());
if(exponent_int.has_value())
{
if(*rhs_int == 0)
if(*exponent_int == 0)
return from_integer(1, expr.type());
else if(*rhs_int == 1)
return power_expr.lhs();
else if(*exponent_int == 1)
return power_expr.base();
else // >= 2
{
auto factors = exprt::operandst{rhs_int.value(), power_expr.lhs()};
// would prefer appropriate mult_exprt constructor
return multi_ary_exprt{ID_mult, factors, expr.type()};
auto factors =
exprt::operandst{exponent_int.value(), power_expr.base()};
return mult_exprt{factors, expr.type()};
}
}
else
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