Sorted instances by problem size

-Solved a bug that job always throw single thread job
-Solved the problem that output plot file was too big
-Sorted instances by problem size
-Solved a transaction for expd and gend
-Added a macro to set whether to initialize the zobrist hashing randomly
-Added macros to optimize the allocations for analysis
-Solved a problem that outsourced node is added to closed list twice
-Refactored analyze distribution
-Solved a bug of analyze_distribution that the output goes inf