resolved gcc warnings

lib/pcenc.cpp

@@ -19,7 +19,7 @@
 #include "up_quad.h"
 
 // On only for debugging
-#define ONLY_UP_ONE_PROVE
+//#define ONLY_UP_ONE_PROVE
 
 SUBool::PCEncoder::PCEncoder(const Config &conf)
     : AbsEncoder(conf), mConf(conf), mOneProveInputs(), mOneProveOutputs(),

lib/up_scc_binary.h

@@ -34,10 +34,12 @@ namespace SUBool
 
       struct VarInfo
       {
-         std::vector<unsigned> level_vars;
-         std::vector<Literal> out_clause;
+         std::vector<unsigned> level_vars{};
+         std::vector<Literal> out_clause{};
       };
+
       using VarInfoList = std::vector<VarInfo>;
+
       struct Context
       {
          unsigned max_level;