From 88f75c00ad6788afd78d2402358c45d14d4c1ede Mon Sep 17 00:00:00 2001
From: Baruch Sterin <baruchs@gmail.com>
Date: Tue, 8 Oct 2013 12:04:08 -0700
Subject: script changes for HWMCC13 (finally submitted version)

---
 scripts/niklas.py | 182 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 182 insertions(+)
 create mode 100644 scripts/niklas.py

(limited to 'scripts/niklas.py')

diff --git a/scripts/niklas.py b/scripts/niklas.py
new file mode 100644
index 00000000..cfab8acc
--- /dev/null
+++ b/scripts/niklas.py
@@ -0,0 +1,182 @@
+import os
+import sys
+import time
+import tempfile
+import subprocess
+
+from contextlib import contextmanager
+
+import pyabc
+import pyabc_split
+
+@contextmanager
+def temp_file_names(N, suffix=""):
+    
+    files = []
+    
+    try:
+        
+        for i in xrange(N):
+            files.append( tempfile.NamedTemporaryFile(suffix=suffix) )
+            
+        yield [ f.name for f in files ]
+    
+    finally:
+        for f in files:
+            f.close()
+        
+def parse_bip_status(status):
+    
+    res = {}
+    
+    for line in open(status, 'r'):
+        
+        line = line.strip()
+        
+        colon = line.find(':')
+        
+        if colon < 0:
+            continue
+            
+        field = line[:colon]
+        data = line[colon+2:]
+        
+        res[field] = data
+    
+    return res
+
+def run_bip(args, aiger):
+
+    with temp_file_names(1) as tmpnames:
+
+        args = [
+            'bip',
+            '-abc',
+            '-input=%s'%aiger,
+            '-output=%s'%tmpnames[0],
+        ] + args;
+        
+        rc = subprocess.call(args, preexec_fn=pyabc._set_death_signal)
+        
+        if rc!=0:
+            return None
+            
+        return parse_bip_status(tmpnames[0])
+
+from pyaig import AIG, read_aiger, write_aiger, utils
+
+def run_niklas_single(aiger, simplify, report_result, timeout=None):
+    
+    orig_args = [
+        [ ',live', '-k=l2s', '-eng=treb-abs' ],
+        [ ',live', '-k=inc' ],
+        [ ',live', '-k=l2s', '-eng=bmc' ],
+    ]
+    
+    simplified_args = [
+        [ ',live', '-k=inc' ],
+        [ ',live', '-k=l2s', '-eng=bmc' ],
+        [ ',live', '-k=l2s', '-eng=treb' ],
+    ]
+    
+    with temp_file_names(1, suffix='.aig') as simple_aiger:
+
+        orig_funcs = [ pyabc_split.defer(run_bip)(a, aiger) for a in orig_args ]
+        simplified_funcs = [ pyabc_split.defer(run_bip)(a, simple_aiger[0]) for a in simplified_args ]
+
+        with pyabc_split.make_splitter() as splitter:
+
+            sleep_id = splitter.fork_one( lambda : time.sleep(timeout ) ) if timeout else None
+            
+            ids = splitter.fork_all( orig_funcs )
+            kill_if_simplified = ids[1:]
+            
+            simplifier_id = splitter.fork_one( pyabc_split.defer(simplify)(aiger, simple_aiger[0]) )
+            
+            for id, res in splitter:
+                
+                if id == sleep_id:
+                    return False
+                
+                if id == simplifier_id:
+                    if not res:
+                        continue
+                    splitter.kill(kill_if_simplified)
+                    splitter.fork_all( simplified_funcs )
+                    continue
+                    
+                if report_result(res):
+                    return True
+
+    return False
+
+def run_niklas_multi(aiger, simplify, report_result):
+    
+    with open(aiger, 'r') as fin:
+        aig = read_aiger( fin )
+        
+    n_j_pos = aig.n_justice()
+    assert n_j_pos > 0
+    
+    if n_j_pos==1:
+        return run_niklas_single( aiger, simplify, report_result=lambda res: report_result(0, res) )
+    
+    with temp_file_names(n_j_pos, suffix='.aig') as single_aiger:
+        
+        def extract(j_po):
+            with open(single_aiger[j_po], 'w') as fout:
+                write_aiger(utils.extract_justice_po(aig, j_po), fout)
+                
+        for _ in pyabc_split.split_all_full( [pyabc_split.defer(extract)(i) for i in xrange(n_j_pos) ] ):
+            pass
+            
+        unsolved = set( xrange(n_j_pos) )
+        
+        timeout = 1
+        
+        while unsolved:
+            for j_po in sorted(unsolved):
+                if run_niklas_single( single_aiger[j_po], simplify, report_result=lambda res: report_result(j_po, res), timeout=timeout ):
+                    unsolved.remove(j_po)
+            timeout *= 2
+        
+    return not unsolved
+    
+if __name__ == "__main__":    
+
+    def simplify(aiger_in, aiger_out):
+
+        with temp_file_names(2, suffix='.aig') as tmp:
+
+            saved = utils.save_po_info(aiger_in, tmp[0])
+
+            pyabc.run_command( 'read_aiger %s'%tmp[0] )
+            pyabc.run_command( 'dc2 ; dc2 ; dc2 ; dc2' )
+            pyabc.run_command( 'write_aiger %s'%tmp[1] )
+
+            utils.restore_po_info( saved, tmp[1], aiger_out )
+            
+        return True
+
+    def report_result(id, res):
+        
+        if res and 'result' in res:
+            result = res['result']
+            if result=='proved':
+                print "PROVED: ", id
+                return True
+            elif result=='failed':
+                print "FAILED:", id
+                return True
+            
+        return False
+        
+    aiger = "test.aig"
+
+    while True:
+        try:
+            run_niklas_multi(aiger, simplify=simplify, report_result=report_result)
+        except:
+            import traceback
+            traceback.print_exc()
+
-- 
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