def mutate(test):
	tcopy = list(test)
	i = rgen.randint(0,len(tcopy))
	sut.replay(tcopy[i:]) 
	e = sut.randomEnabled(rgen)
	ok = sut.safely(e)
	
	elapsed = time.time() - start

	if RUNNING:			#should branch coverage be produced 
		if sut.newBranches() != set([]):
	            for b in sut.newBranches():
	                print elapsed,len(sut.allBranches()),"New branch",b


	if not ok: 	#found a bug, report it 
			bugs+=1
			print "Found a FAILURE"
			#sut.prettyPrintTest(sut.test())
			print sut.failure()
			print "REDUCING"
			R = sut.reduce(sut.test(), sut.fails, True, True)
			sut.prettyPrintTest(R)
			print sut.failure()
		
			if FAULT:	#save test to a file if FAULT is enabled
				filename = "failure" + str(bugs) + ".test"
			
				sut.saveTest(R,filename)

	trest = [e]
	for s in tcopy[i+1:]:
		if s[1]():
			trest.append(s)
			ok = sut.safely(s)
			if not ok: 	#found a bug, report it 
				bugs+=1
				print "Found a FAILURE"
				#sut.prettyPrintTest(sut.test())
				print sut.failure()
				print "REDUCING"
				R = sut.reduce(sut.test(), sut.fails, True, True)
				sut.prettyPrintTest(R)
				print sut.failure()
		
				if FAULT:	#save test to a file if FAULT is enabled
					filename = "failure" + str(bugs) + ".test"
			
					sut.saveTest(R,filename)

	tcopy = test[i:] +trest
	return tcopy

def action():
    global actCount, bugs, failPool
    act = sut.randomEnabled(rgen)
    actCount += 1
    ok = sut.safely(act)
    if running == 1:
            if len(sut.newBranches()) > 0:
                print "ACTION:", act[0]
                for b in sut.newBranches():
                    print time.time() - start, len(sut.allBranches()), "New branch", b
                for s in sut.newStatements():
                    print time.time() - start, len(sut.allStatements()),"New statement",s
    
    if not ok:
        if faults:
            bugs += 1
            print "FOUND A FAILURE"
            print sut.failure()
            print "REDUCING"
            failPool.append(sut.test())
            collectCoverage()
            R = sut.reduce(sut.test(),sut.fails, True, True)
            sut.prettyPrintTest(R)
            print sut.failure()
            fname="failure" + str(bugs) + ".test"
            sut.saveTest(sut.test(),fname)
            errorSeqs.append(sut.currStatements())
            sut.restart()
    else: 
        expand()

    return ok

def Find_bugs(list_actions):
	# print "Find_bugs"
	global coverage_counter
	global bugs	
	global Record
	global string
	safe = sut.safely(list_actions)
	running_oh()
	if not safe:
		bugs = bugs + 1
		print " *** find a bug: ",bugs
		# bugs = bugs + 1
		for t in sut.currStatements():
			if t not in coverage_counter:
				coverage_counter[t]=0
			coverage_counter[t] = coverage_counter[t] + 1	
		# Collect_coverage()
		print sut.failure()
		# string = str(sut.failure)
		Record = True
		print "reducing..."
		R = sut.reduce(sut.test(),sut.fails, True, True)
		sut.prettyPrintTest(R)	
		# record_failures(R)
		if FAULTS:
			print"create file"
			# for x in xrange(1,bugs):
				# print "save"
			sut.saveTest(R, failure + str(bugs)+ ".test")
			# filename = "failure" +  str(bugs) + ".test"
			# sut.saveTest(sut.test(), filename)
		# sut.restart()
	return safe

def randomAction():
    global actCount, bugs, coverageCount, belowMean,lastAddCoverage

    act = sut.randomEnabled(random.Random())
    actCount += 1
    ok = sut.safely(act)

    if running:
        if len(sut.newBranches()) > 0:
            print "ACTION:",sut.randomEnabled(random.Random(seed))[0]
            for b in sut.newBranches():
                print time.time() - start, len(sut.allBranches()),"New branch",b
            for s1 in sut.newStatements():
                print time.time() - start, len(sut.allStatements()),"New statement",b

    if not ok or not sut.check():
        bugs += 1
        print "FOUND A FAILURE"
        if faults:
            print("SHOW FAULT")
            print sut.failure()
            error.append(sut.test())
            R = sut.reduce(sut.test(),sut.fails, True, True)
            sut.prettyPrintTest(R)
            print sut.failure()
            sut.restart()

    return ok

def randomAction():
    global actCount, bugs,newseq,currseq
    act = sut.randomEnabled(R)
    actCount += 1
    ok = sut.safely(act)

    if running:
        if len(sut.newBranches()) > 0:
            print "ACTION:",sut.randomEnabled(random.Random(seed))[0]
            for b in sut.newBranches():
                print time.time() - start, len(sut.allBranches()),"New branch",b
            for s1 in sut.newStatements():
                print time.time() - start, len(sut.allStatements()),"New statement",s1

    if not ok:
        bugs += 1
        print "FOUND A FAILURE"

        if faults:
            f = sut.reduce(sut.test(), sut.fails, True, True)
            sut.prettyPrintTest(f)
            currseq.append((f,set(sut.currStatements())))
            print("SHOW FAULT")
            file = 'failure' + str(actCount) + '.test'
            sut.saveTest(sut.test(), file)
            sut.restart()
            print sut.failure()

    return ok

def tester():
    global sut,act,n,test,para,lCovered,actNum,bugs,M,flag, filename
    act = sut.randomEnabled(rgen)
    flag = 0
    n = sut.safely(act)
    if running:
        if sut.newBranches() != set([]):
            for d in sut.newBranches():
                print time.time() - start, len(sut.allBranches()),"New branch",d
    if len(sut.newStatements()) > 0:
        test = sut.state()
        para = True
        print sut.newStatements()
    if (para == False):
        if (lCovered != None):
            if (lCovered in sut.currStatements()):
                test = sut.state()
                para = True
    actNum += 1
    if (n == 0):
        bugs += 1
        print "A failure has been found!", bugs
        print sut.failure()
        M = sut.reduce(sut.test(),sut.fails, True, True)
        sut.prettyPrintTest(M)
        print sut.failure()
        filename ='failure%d.test'%bugs
        sut.saveTest(M,filename)
        flag = 1

def running_oh():
	global actinos, elapsed, lastAddCoverage, median_even, median_odd 


	if len(sut.newBranches()) != set ([]):
		print "ACTION:", list_actions[0]
		for s in sut.newBranches():
			print elapsed,len(sut.allBranches()),"New branch",s

	if len(sut.newStatements())> 0:
		print "ACTION:", list_actions[0]
		for s in sut.newStatements():
			print elapsed,len(sut.allStatements()),"New statement",s

		old_test = list(sut.test())
		store_new_test  = sut.reduce(old_test,sut.coversStatements(sut.newStatements()))
		sut.replay(old_test)
		testBuffer.append(store_new_test)	
		currentStatementBuffer.append(set(sut.currStatements()))
		lastAddCoverage = set(sut.currStatements())
		

	for s in median_odd or median_even:
		if s in sut.currStatements() and s not in lastAddCoverage:
			print "find new path to lower coverstatements: ", s
			testBuffer.append(list(sut.test()) )
			currentStatementBuffer.append(set(sut.currStatements()))
			lastAddCoverage = set(sut.currStatements() )

def randomAction():
    global bug_no, time_start, allAction, ii
    action = sut.randomEnabled(rand)
    ok = sut.safely(action)
    elapsed = time.time() - time_start
    if RUNNING_DETAIL:
        if len(sut.newBranches()) > 0:
            print "ACTION:", action[0]
            for b in sut.newBranches():
                print elapsed, len(sut.allBranches()), "New branch", b

    if not ok:  # found a bug
        bug_no += 1
        print "FOUND A BUG! #", bug_no
        print sut.failure()
        print("REDUCING")
        reduce = sut.reduce(sut.test(), sut.fails, True, True)

        sut.prettyPrintTest(reduce)
        print(sut.failure())
        # write the bug to file if FAULT_ARGUMENT is enabled
        if (FAULT_CHECK):
            f = open((failure_file + str(bug_no) + ".test"), "w")
            print >> f, sut.failure()
            # print sequence that causes failure
            j = 0
            for (s_reduces, _, _) in reduce:
                steps_reduce = "# STEP " + str(j)
                print >> f, sut.prettyName(s_reduces).ljust(80 - len(steps_reduce), ' '), steps_reduce
                j += 1
            f.close()
        print "time: ", time.time() - time_start
    return ok

def newState():
    global rgen,sut,collected_test,storedTest,action_cnt,bugfound
    for i in xrange(0,DEPTH):
        action = sut.randomEnabled(rgen)
        no_bug_found = sut.safely(action)
        if RUNNING:
            if sut.newBranches() != set([]):
                for d in sut.newBranches():
                    print time.time() - start,len(sut.allBranches()),"New Branches",d
        if len(sut.newStatements()) > 0:
            collected_test = sut.state()
            storedTest = True
            print "new statement:",sut.newStatements()
        if (not storedTest) and (lst_coverage != None) and (lst_coverage in sut.currStatements()):

            collected_test = sut.state()
            storedTest = True
        action_cnt += 1
        if not no_bug_found:
            bugfound += 1
            print "A failure happened here."
            rds = sut.reduce(sut.test(),sut.fails, True, True)
            sut.prettyPrintTest(rds)
            print sut.failure()
            break

def action():
    global actCount, bugs, failPool
    act = sut.randomEnabled(rgen)
    actCount += 1
    ok = sut.safely(act)
    if running == 1:
            if len(sut.newBranches()) > 0:
                print "ACTION:", act[0]
                for b in sut.newBranches():
                    print time.time() - start, len(sut.allBranches()), "New branch", b
    if faults:
        if not ok:
            bugs += 1
            print "FOUND A FAILURE"
            print sut.failure()
            print "REDUCING"
            failPool.append(sut.test())
            collectCoverage()
            R = sut.reduce(sut.test(),sut.fails, True, True)
            sut.prettyPrintTest(R)
            print sut.failure()
            
            f = open(("failure" + str(bugs) + ".test"),"w")
            f.writelines(str(sut.failure()))
            f.close()
            
            sut.restart()
        else:
            expand()
    
    return ok

def randomAction():   
    global actCount, bugs, fails
    sawNew = False
    act = sut.randomEnabled(seeds)
    actCount += 1
    ok = sut.safely(act)
    propok = sut.check()
   
    if running:
        if sut.newBranches() != set([]):
            for b in sut.newBranches():
                print time.time()-start,len(sut.allBranches()),"New branch",b
            sawNew = True
        else:
            sawNew = False    

    if not ok or not propok:
        if faults:
            bugs += 1
            fail.append(sut.test())
            saveCover()
            R = sut.reduce(sut.test(),sut.fails, True, True)
            sut.restart()
            print "FAILURE FOUND.....FAILURES ARE STORING IN FILES"
            fault = sut.failure()
            fname = 'failure' + str(bugs) + '.test'
            wfile = open(fname, 'w+')
            wfile.write(str(fault))
            wfile.close() 
            sut.restart() 

    else:
        expandPool()
    return ok 

def notOK():
    global bugs, sut
    bugs += 1
    print "FOUND A FAILURE"
    print sut.failure()
    print "REDUCING"
    R = sut.reduce(sut.test(), sut.fails, True, True)
    sut.prettyPrintTest(R)
    print sut.failure()

def newStatement():
    global lastAddCoverage
    print "NEW STATEMENTS DISCOVERED",sut.newStatements()
    oldTest = list(sut.test())
    storeTest = sut.reduce(oldTest,sut.coversStatements(sut.newStatements()))
    print "OLD LENGTH = ",len(oldTest),"NEW LENGTH = ",len(storeTest)
    sut.replay(oldTest)
    fullPool.append((storeTest, set(sut.currStatements())))
    lastAddCoverage = set(sut.currStatements())
    return

def failures(sut,bugs, Config, faults_file):
    bugs +=1
    print "FOUND A FAILURE"
    print sut.failure()
    print "REDUCING"
    failPool.append(sut.test())
    collectCoverage()
    R = sut.reduce(sut.test(), sut.fails, True, True)
    
    sut.prettyPrintTest(R)
    print sut.failure()

def failure():
	global bugs
	bugs += 1
	collectCoverage()
	R = sut.reduce(sut.test(), sut.fails, True, True)
	if config.faults :
		filename = 'failure%d.test'%bugs
		sut.saveTest(sut.test(), filename)
	sut.prettyPrintTest(R)
	sut.restart()
	return

def main():
	global config,rgen,actCount,failCount,ntests,coverageCount

	parsed_args, parser = parse_args()
	config = make_config(parsed_args, parser)
	rgen = random.Random(config.seed)

	actCount = 0
	failCount = 0
	coverageCount = {}

	start = time.time()
	ntests = 0
	while True:
		elapsed = time.time() - start
		if elapsed > config.timeout:
			print "STOPPING TEST DUE TO TIMEOUT, TERMINATED AT LENGTH",ntests
			break

		for i in xrange(0, config.depth):
			sut.restart()
			ntests += 1
			for j in xrange(0, config.width):
				act = sut.randomEnabled(rgen)
				actCount += 1
				ok = sut.safely(act)
				if not ok:
					failCount += 1
					print "FOUND A FAILURE"
					collectCoverage()
					R = sut.reduce(sut.test(),sut.fails, True, True)
					sut.prettyPrintTest(R)
					print sut.failure()
					break

				if config.running:
					if sut.newBranches() != set([]):
						for b in sut.newBranches():
							print time.time()-start, len(sut.allBranches()), "New branch", b
					if sut.newStatements() != set([]):
						for s in sut.newStatements():
							print time.time()-start,len(sut.allStatements()),"New statement",s

		collectCoverage()	

	if config.faults:
		print "TOTAL FAULTS", failCount

	if config.coverage:
		print len(sut.allBranches()),"BRANCHES COVERED"
		print len(sut.allStatements()),"STATEMENTS COVERED"
	
	print "TOTAL ACTIONS",actCount
	print "TOTAL RUNTIME",time.time()-start

def main():
	global config,rgen,actCount,failCount,ntests,fullPool

	parsed_args, parser = parse_args()
	config = make_config(parsed_args, parser)
	rgen = random.Random(config.seed)

	actCount = 0
	failCount = 0
	fullPool = []

	start = time.time()
	ntests = 0
	while time.time() - start < config.timeout:
		ntests += 1
		sut.restart()
		for d in xrange(0, config.depth):
			act = sut.randomEnabled(rgen)
			actCount += 1

			ok = sut.safely(act)
			expandPool()
			if config.running:
				if sut.newBranches() != set([]):
					for b in sut.newBranches():
						print time.time()-start, len(sut.allBranches()), "New branch", b
				if sut.newStatements() != set([]):
					for s in sut.newStatements():
						print time.time()-start, len(sut.allStatements()),"New statement",s

			if not ok:
				failCount += 1
				if config.faults:
					failureHandle(failCount)
				print "FOUND A FAILURE"
				R = sut.reduce(sut.test(),sut.fails, True, True)
				sut.prettyPrintTest(R)
				print sut.failure()
				sut.restart()
				break

			if time.time() - start > config.timeout:
				print "STOPPING TEST DUE TO TIMEOUT, TERMINATED AT LENGTH",ntests
				break

	if config.faults:
		print "TOTAL FAULTS", failCount

	if config.coverage:
		sut.internalReport()
	
	print "TOTAL ACTIONS",actCount
	print "TOTAL RUNTIME",time.time()-start

def failure():
    global bugs, failPool
    bugs += 1
    print "FOUND A FAILURE"
    print sut.failure()
    print "REDUCING"
    failPool.append(sut.test())
    collectCoverage()
    R = sut.reduce(sut.test(),sut.fails, True, True)
    sut.prettyPrintTest(R)
    print sut.failure()
    sut.restart()
    return     

def captureFault():
    'Print failure state and reduction, save to file'
    global nbugs
    nbugs += 1
    print "FAILURE LOCATED:"
    print sut.failure()
    print "REDUCING FAILURE:"
    R = sut.reduce(sut.test(),sut.fails, True, True)
    sut.prettyPrintTest(R)
    print sut.failure()
    # output to file for each fault
    filename = 'failure%d.test' % nbugs
    sut.saveTest(R, filename)

def captureFault():
    'Print failure state and reduction'
    print "FAILURE LOCATED:"
    print sut.failure()
    print "REDUCING FAILURE:"
    R = sut.reduce(sut.test(),sut.fails, True, True)
    sut.prettyPrintTest(R)
    print sut.failure()
    # output to file for each fault
    fname = 'failure%d.test' % nbugs
    fo = open(fname, "wb")
    fo.write(sut.failure())
    fo.close()