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func_generator.py
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func_generator.py
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import argparse
import random
import os
from pathlib import Path
UNCHANGED = 'SAT->SAT\nUNSAT->UNSAT\n'
# UN_SAT_UNKNOWN = 'SAT->SAT\nUNSAT->UNKNOWN\n'
SAT_UNKNOWN = 'SAT->UNKNOWN\nUNSAT->UNSAT\n'
ALL_UN_SAT = 'SAT->UNSAT\nUNSAT->UNSAT\n'
# data is list of strings (each represents a line in cnf files)
# return [(data, expect_file_content), (), ...]
def generate_follow_up_tests_and_expectation_files(no_of_var, data):
result = []
for i in range(0, 6):
new_data = swap_between_clauses(data)
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, UNCHANGED))
for i in range(6, 12):
new_data = swap_internal_clauses(data)
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, UNCHANGED))
for i in range(12, 18):
new_data = add_clause(no_of_var, data)
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, SAT_UNKNOWN))
for i in range(18, 19):
new_data = add_trivial_sat_clause(no_of_var, data)
new_data.insert(0, 'p cnf ' + str(no_of_var + 1) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, UNCHANGED))
for i in range(19, 20):
new_data = add_trivial_un_sat_clause(no_of_var, data)
new_data.insert(0, 'p cnf ' + str(no_of_var + 1) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, ALL_UN_SAT))
for i in range(20, 26):
new_data = swap_between_clauses(swap_internal_clauses(data))
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, UNCHANGED))
for i in range(26, 32):
new_data = swap_between_clauses(add_clause(no_of_var, data))
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, SAT_UNKNOWN))
for i in range(32, 38):
new_data = swap_internal_clauses(add_clause(no_of_var, data))
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, SAT_UNKNOWN))
for i in range(38, 44):
new_data = add_clause(no_of_var, swap_internal_clauses(swap_between_clauses(data)))
new_data.insert(0, 'p cnf ' + str(no_of_var) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, SAT_UNKNOWN))
for i in range(44, 47):
new_data = add_trivial_sat_clause(no_of_var, swap_internal_clauses(swap_between_clauses(data)))
new_data.insert(0, 'p cnf ' + str(no_of_var + 1) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, UNCHANGED))
for i in range(47, 50):
new_data = add_trivial_un_sat_clause(no_of_var, swap_internal_clauses(swap_between_clauses(data)))
new_data.insert(0, 'p cnf ' + str(no_of_var + 1) + ' ' + str(len(new_data)) + '\n')
result.append((new_data, ALL_UN_SAT))
return result
def swap_between_clauses(old_data):
data = old_data.copy()
random.shuffle(data)
return data
def swap_internal_clauses(old_data):
data = old_data.copy()
for i in range(0, len(data)):
data[i] = data[i][0: len(data[i]) - 1]
split_line = data[i].split()
length = len(split_line)
if split_line[length - 1] == '0':
split_line = split_line[0: length - 1]
random.shuffle(split_line)
split_line.append('0')
else:
random.shuffle(split_line)
data[i] = combine(split_line) + '\n'
return data
def combine(split_line):
line = ''
for split_num in split_line:
line += split_num + ' '
return line[0: len(line) - 1]
def add_clause(no_of_vars, old_data):
data = old_data.copy()
no_of_new_clauses = random.randint(1, 100)
# Number of clauses
for i in range(no_of_new_clauses):
line = ''
# Number of vars in a line
for _ in range(random.randint(1, 100)):
if random.randint(0, 1) == 1:
line += '-'
# Choose one var
line = line + str(random.randint(1, no_of_vars)) + ' '
line += '0\n'
data.append(line)
return data
def add_trivial_sat_clause(no_of_vars, old_data):
data = old_data.copy()
new_no_of_vars = no_of_vars + 1
data.append(str(new_no_of_vars) + ' 0\n')
return data
def add_trivial_un_sat_clause(no_of_vars, old_data):
data = old_data.copy()
new_no_of_vars = no_of_vars + 1
data.append(str(new_no_of_vars) + ' 0\n')
data.append('-' + str(new_no_of_vars) + ' 0\n')
return data
def parse_args():
parser = argparse.ArgumentParser()
parser.add_argument("SUT_path", type=str)
parser.add_argument("inputs_path", type=str)
return parser.parse_args()
def execute():
args = parse_args()
input_directory = os.fsdecode(args.inputs_path)
Path(args.inputs_path + '/follow-up-tests').mkdir(parents=True, exist_ok=True)
for file in os.listdir(input_directory):
filename = os.fsdecode(file)
if filename.endswith(".cnf"):
print(filename)
with open(input_directory + '/' + filename, 'r') as target_file:
basename = filename[:-4]
data = target_file.readlines()
strings = data[0].split(' ')
no_of_var = int(strings[2])
del data[0]
result = generate_follow_up_tests_and_expectation_files(no_of_var, data)
for i in range(50):
cnf, txt = result[i]
with open(args.inputs_path + '/follow-up-tests/' + str(basename + '_' + "{0:0=2d}".format(i) + '.cnf'),
'w') as output_cnf:
output_cnf.writelines(cnf)
with open(args.inputs_path + '/follow-up-tests/' + str(basename + '_' + "{0:0=2d}".format(i) + '.txt'),
'w') as output_txt:
output_txt.writelines(txt)
if __name__ == "__main__":
execute()