Question

我正在尝试使用Boolector / Python执行一些asm综合-（尽管我也很乐意将其重写为使用Z3）。

这是一个简单的示例-有一组寄存器，我只希望它发现“ rs”应为0。

换句话说，对于所有xx（参数），Write（iregs，rs，xx）都会生成regs [0] == xx。

但是，它会引发：

pyboolector.BoolectorException: [pybtor] [btorcore] btor_check_sat: quantifiers with functions not supported yet

我不确定如何用不同的方式写这个。

#!/usr/bin/env python3

import sys
from pyboolector import *


b = Boolector()
b.Set_opt( BTOR_OPT_MODEL_GEN, 1 )

# reg selector - we have 4 regs
reg_sel_sort = b.BitVecSort( 2 )

# registers are 32-bit
reg_sort = b.BitVecSort( 32 )

# make a register set sort
reg_array_sort = b.ArraySort( reg_sel_sort, reg_sort )

# make a set of registers
iregs = b.Array( reg_array_sort, "iregs" )

# choose an index into the set
rs = b.Var( reg_sel_sort, "rs" )

# write a parameter's value into the chosen reg
xx = b.Param( reg_sort )
iregs = b.Write( iregs, rs, xx )

# read from iregs[ 0 ]
rr = b.Read( iregs, 0 )

# assert that iregs[ 0 ] == xx
fa = b.Forall( [ xx ], b.Eq( rr, xx ) )
b.Assert( fa )

# I was hoping this would just set rs=0 - but instead, it raises:
# pyboolector.BoolectorException: [pybtor] [btorcore] btor_check_sat: quantifiers with functions not supported yet
if( not b.Sat() ):
    print( "unsat" )
    sys.exit( 0 )

b.Print_model()

print( "done" )

Boolector：“尚不支持功能的量化器”

0 个答案: