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Fix smtio.py for large SMT2 S-expressions

This commit is contained in:
Clifford Wolf 2018-01-29 12:34:28 +01:00
parent 675f53abbb
commit e97f10b142
1 changed files with 12 additions and 1 deletions
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13
backends/smt2/smtio.py
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@ -16,7 +16,8 @@
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
#
import sys, subprocess, re, os
import sys, re, os
import resource, subprocess
from copy import deepcopy
from select import select
from time import time
@ -24,6 +25,16 @@ from queue import Queue, Empty
from threading import Thread
# This is needed so that the recursive SMT2 S-expression parser
# does not run out of stack frames when parsing large expressions
smtio_reclimit = 64 * 1024
smtio_stacksize = 128 * 1024 * 1024
if sys.getrecursionlimit() < smtio_reclimit:
sys.setrecursionlimit(smtio_reclimit)
if resource.getrlimit(resource.RLIMIT_STACK)[0] < smtio_stacksize:
resource.setrlimit(resource.RLIMIT_STACK, (smtio_stacksize, -1))
hex_dict = {
"0": "0000", "1": "0001", "2": "0010", "3": "0011",
"4": "0100", "5": "0101", "6": "0110", "7": "0111",