Program: 192348
Project: 192348
Buggy source:
void stepLightIdleStateLocked(String reason){
  if (mLightState == LIGHT_STATE_OVERRIDE) {
    return;
  }
  if (DEBUG)   Slog.d(TAG,"String_Node_Str" + mLightState);
  EventLogTags.writeDeviceIdleLightStep();
switch (mLightState) {
case LIGHT_STATE_INACTIVE:
    mCurIdleBudget=mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
  mNextLightIdleDelay=mConstants.LIGHT_IDLE_TIMEOUT;
mMaintenanceStartTime=0;
case LIGHT_STATE_IDLE_MAINTENANCE:
if (mMaintenanceStartTime != 0) {
long duration=SystemClock.elapsedRealtime() - mMaintenanceStartTime;
if (duration < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
  mCurIdleBudget+=(mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET - duration);
}
 else {
  mCurIdleBudget-=(duration - mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET);
}
}
mMaintenanceStartTime=0;
scheduleLightAlarmLocked(mNextLightIdleDelay);
mNextLightIdleDelay=Math.min(mConstants.LIGHT_MAX_IDLE_TIMEOUT,(long)(mNextLightIdleDelay * mConstants.LIGHT_IDLE_FACTOR));
if (mNextLightIdleDelay < mConstants.LIGHT_IDLE_TIMEOUT) {
mNextLightIdleDelay=mConstants.LIGHT_IDLE_TIMEOUT;
}
if (DEBUG) Slog.d(TAG,"String_Node_Str");
mLightState=LIGHT_STATE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState,reason);
addEvent(EVENT_LIGHT_IDLE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON_LIGHT);
if (mMaintenanceMinCheckScheduled) {
mAlarmManager.cancel(mMaintenanceMinCheckListener);
mMaintenanceMinCheckScheduled=false;
}
break;
case LIGHT_STATE_IDLE:
mActiveIdleOpCount=1;
mMaintenanceStartTime=SystemClock.elapsedRealtime();
if (mCurIdleBudget < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
mCurIdleBudget=mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
}
 else if (mCurIdleBudget > mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET) {
mCurIdleBudget=mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET;
}
scheduleLightAlarmLocked(mCurIdleBudget);
if (DEBUG) Slog.d(TAG,"String_Node_Str");
mLightState=LIGHT_STATE_IDLE_MAINTENANCE;
EventLogTags.writeDeviceIdleLight(mLightState,reason);
addEvent(EVENT_LIGHT_MAINTENANCE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
mAlarmManager.setExact(AlarmManager.ELAPSED_REALTIME,mMaintenanceStartTime + mConstants.MIN_LIGHT_MAINTENANCE_TIME,"String_Node_Str",mMaintenanceMinCheckListener,mHandler);
mMaintenanceMinCheckScheduled=true;
break;
}
}

Fixed version (ground truth):
void stepLightIdleStateLocked(String reason){
  if (mLightState == LIGHT_STATE_OVERRIDE) {
    return;
  }
  if (DEBUG)   Slog.d(TAG,"String_Node_Str" + mLightState);
  EventLogTags.writeDeviceIdleLightStep();
switch (mLightState) {
case LIGHT_STATE_INACTIVE:
    mCurIdleBudget=mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
  mNextLightIdleDelay=mConstants.LIGHT_IDLE_TIMEOUT;
mMaintenanceStartTime=0;
if (!isOpsInactiveLocked()) {
mLightState=LIGHT_STATE_PRE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState,reason);
scheduleLightAlarmLocked(mConstants.LIGHT_PRE_IDLE_TIMEOUT);
break;
}
case LIGHT_STATE_PRE_IDLE:
case LIGHT_STATE_IDLE_MAINTENANCE:
if (mMaintenanceStartTime != 0) {
long duration=SystemClock.elapsedRealtime() - mMaintenanceStartTime;
if (duration < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
mCurIdleBudget+=(mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET - duration);
}
 else {
mCurIdleBudget-=(duration - mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET);
}
}
mMaintenanceStartTime=0;
scheduleLightAlarmLocked(mNextLightIdleDelay);
mNextLightIdleDelay=Math.min(mConstants.LIGHT_MAX_IDLE_TIMEOUT,(long)(mNextLightIdleDelay * mConstants.LIGHT_IDLE_FACTOR));
if (mNextLightIdleDelay < mConstants.LIGHT_IDLE_TIMEOUT) {
mNextLightIdleDelay=mConstants.LIGHT_IDLE_TIMEOUT;
}
if (DEBUG) Slog.d(TAG,"String_Node_Str");
mLightState=LIGHT_STATE_IDLE;
EventLogTags.writeDeviceIdleLight(mLightState,reason);
addEvent(EVENT_LIGHT_IDLE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_ON_LIGHT);
break;
case LIGHT_STATE_IDLE:
mActiveIdleOpCount=1;
mActiveIdleWakeLock.acquire();
mMaintenanceStartTime=SystemClock.elapsedRealtime();
if (mCurIdleBudget < mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET) {
mCurIdleBudget=mConstants.LIGHT_IDLE_MAINTENANCE_MIN_BUDGET;
}
 else if (mCurIdleBudget > mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET) {
mCurIdleBudget=mConstants.LIGHT_IDLE_MAINTENANCE_MAX_BUDGET;
}
scheduleLightAlarmLocked(mCurIdleBudget);
if (DEBUG) Slog.d(TAG,"String_Node_Str");
mLightState=LIGHT_STATE_IDLE_MAINTENANCE;
EventLogTags.writeDeviceIdleLight(mLightState,reason);
addEvent(EVENT_LIGHT_MAINTENANCE);
mHandler.sendEmptyMessage(MSG_REPORT_IDLE_OFF);
break;
}
}