def resetVarCache():
# deleting the variables makes stp crash, doing pop and push does not work, this is the
# only way to have a clean STP environment """
global _stp
del _stp
_stp = pystp.Stp()
stp_vars.clear()
import sys
import pystp
# for(int j=0;j < 3; j++) {
for j in range(3):
# VC vc = vc_createValidityChecker();
vc = pystp.Stp()
# vc_setFlags('n');
# vc_setFlags('d');
# vc_setFlags('p');
# vc_setFlags('x');
vc.setFlags("ndpx")
# Type bv8 = vc_bvType(vc, 8);
bv8 = vc.createType(pystp.TYPE_BITVECTOR, 8)
# Expr a = vc_bvCreateMemoryArray(vc, "a");
a = vc.bvCreateMemoryArray("a")
# Expr index_3 = vc_bvConstExprFromInt(vc, 32, 3);
index_3 = vc.bvConstExprFromInt(32, 3)
# Expr a_of_0 = vc_readExpr(vc, a, index_3);
a_of_0 = vc.readExpr(a, index_3)
# int i;
# for (i = 2; i >= 0; i--)
# a_of_0 = vc_bvConcatExpr(vc,
# a_of_0,
# vc_readExpr(vc, a,
# vc_bvConstExprFromInt(vc, 32, i)));
import sys
import pystp
# preliminary
print >> sys.stderr, " * creating Stp object"
o = pystp.Stp()
print "-" * 25, "\n"
# types
print >> sys.stderr, " * creating StpType Bool object (t1)"
t1 = o.createType(pystp.TYPE_BOOL)
print >> sys.stderr, " - printing it: '%s'" % t1
assert t1.isBool() and not t1.isBitVector() and not t1.isArray()
print >> sys.stderr, " * creating StpType BitVector object (t2)"
t2 = o.createType(pystp.TYPE_BITVECTOR)
print >> sys.stderr, " - printing it: '%s'" % t2
assert not t2.isBool() and t2.isBitVector() and not t2.isArray()
print >> sys.stderr, " * creating StpType BitVector(24) object (t3)"
t3 = o.createType(pystp.TYPE_BITVECTOR, 24)
print >> sys.stderr, " - printing it: '%s'" % t3
assert not t3.isBool() and t3.isBitVector() and not t3.isArray()
print "-" * 25, "\n"
# expressions
print >> sys.stderr, " * creating StpExpr variable 'pippo', with type 't1' (v1)"
v1 = o.varExpr("pippo", t1)
print >> sys.stderr, " - printing it: '%s'" % v1
tmp = v1.getType()
assert tmp.isBool() and not tmp.isBitVector() and not tmp.isArray()
#
import ast
import logging
log = logging.getLogger("nice.se.stp")
import utils
try:
import pystp
except ImportError as e:
utils.crash("Cannot import %s" % e)
from symbolic.symbolic_types.symbolic_type import SymbolicType
_stp = pystp.Stp()
stp_types = {}
stp_vars = {}
def int2stp(v, length):
# see note on getIntegerType
return _stp.bvConstExprFromLL(length, v)
def getIntegerType(bitlen):
### Note: Pystp threats int as 32 bit and using getBVInt / getBVUnsigned
# with 64bit architecture can cause following crash when stp counterexample contains >32bit values:
# Fatal Error: GetUnsignedConst: cannot convert bvconst of length greater than 32 to unsigned int
# python: ASTmisc.cpp:92: void BEEV::FatalError(const char*): Assertion `0' failed.
