From 5cfc2d1c7a3bd6acaa26a0a8e7dda12b6bbf17b4 Mon Sep 17 00:00:00 2001
From: anwu1219 <haozewu@stanford.edu>
Date: Fri, 21 Sep 2018 10:08:10 -0700
Subject: change solve to simp, and fix format

---
 .../cryptominisat-5.6.3/scripts/fuzz/debuglib.py   | 148 +++++++++++++++++++++
 1 file changed, 148 insertions(+)
 create mode 100644 cryptominisat5/cryptominisat-5.6.3/scripts/fuzz/debuglib.py

(limited to 'cryptominisat5/cryptominisat-5.6.3/scripts/fuzz/debuglib.py')

diff --git a/cryptominisat5/cryptominisat-5.6.3/scripts/fuzz/debuglib.py b/cryptominisat5/cryptominisat-5.6.3/scripts/fuzz/debuglib.py
new file mode 100644
index 000000000..639899b9f
--- /dev/null
+++ b/cryptominisat5/cryptominisat-5.6.3/scripts/fuzz/debuglib.py
@@ -0,0 +1,148 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+# Copyright (C) 2014  Mate Soos
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; version 2
+# of the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+# 02110-1301, USA.
+
+from __future__ import with_statement  # Required in 2.5
+from __future__ import print_function
+import random
+
+
+def get_max_var_from_clause(line):
+    maxvar = 0
+    # strip leading 'x'
+    line2 = line.strip()
+    if len(line2) > 0 and line2[0] == 'x':
+        line2 = line2[1:]
+
+    for lit in line2.split():
+        num = 0
+        try:
+            num = int(lit)
+        except ValueError:
+            print("line '%s' contains a non-integer variable" % line2)
+
+        maxvar = max(maxvar, abs(num))
+
+    return maxvar
+
+
+class debuglib:
+    @staticmethod
+    def generate_random_assumps(maxvar):
+        assumps = ""
+        num = 0
+        varsInside = set()
+
+        # Half of the time, no assumptions at all
+        if random.randint(0, 1) == 1:
+            return assumps
+
+        # use a distribution so that few will be in assumps
+        while (num < maxvar and random.randint(0, 4) > 0):
+
+            # get a var that is not already inside the assumps
+            thisVar = random.randint(1, maxvar)
+            tries = 0
+            while (thisVar in varsInside):
+                thisVar = random.randint(1, maxvar)
+                tries += 1
+
+                # too many tries, don't waste time
+                if tries > 100:
+                    return assumps
+
+            varsInside.add(thisVar)
+
+            # random sign
+            num += 1
+            if random.randint(0, 1):
+                thisVar *= -1
+
+            assumps += "%d " % thisVar
+
+        return assumps
+
+    @staticmethod
+    def file_len_no_comment(fname):
+        i = 0
+        with open(fname) as f:
+            for l in f:
+                # ignore comments and empty lines and header
+                if not l or l[0] == "c" or l[0] == "p":
+                    continue
+                i += 1
+
+        return i
+
+    @staticmethod
+    def main(fname1, fname2):
+
+        # approx number of solve()-s to add
+        if random.randint(0, 1) == 1:
+            num_to_add = random.randint(0, 10)
+        else:
+            num_to_add = 0
+
+        # based on length and number of solve()-s to add, intersperse
+        # file with ::solve()
+        file_len = debuglib.file_len_no_comment(fname1)
+        if num_to_add > 0:
+            nextToAdd = random.randint(1, int(file_len / num_to_add) + 1)
+        else:
+            nextToAdd = file_len + 1
+
+        fin = open(fname1, "r")
+        fout = open(fname2, "w")
+        at = 0
+        maxvar = 0
+        for line in fin:
+            line = line.strip()
+
+            # ignore comments (but write them out)
+            if not line or line[0] == "c" or line[0] == 'p':
+                fout.write(line + '\n')
+                continue
+
+            at += 1
+            if at >= nextToAdd:
+                assumps = debuglib.generate_random_assumps(maxvar)
+                if random.choice([True, False]):
+                    fout.write("c Solver::solve( %s )\n" % assumps)
+                elif random.choice([True, False]):
+                    fout.write("c Solver::simplify( %s )\n" % assumps)
+                else:
+                    fout.write("c Solver::simplify( %s )\n" % assumps)
+                    fout.write("c Solver::solve( %s )\n" % assumps)
+
+                nextToAdd = at + \
+                    random.randint(1, int(file_len / num_to_add) + 1)
+
+            # calculate max variable
+            maxvar = max(maxvar, get_max_var_from_clause(line))
+
+            # copy line over
+            fout.write(line + '\n')
+        fout.close()
+        fin.close()
+
+
+def intersperse(fname1, fname2, seed):
+    random.seed(int(seed))
+    debuglib.main(fname1, fname2)
+
-- 
cgit v1.2.3