llvm - Klee with stp vs. Klee with other sat solver -

klee uses stp constraint solver, theoretically possible change solver. stp not allow floating point operations. if decide replace stp constraint solver, z3, klee able generate floating point constraints?

the flow is: c code -> llvm bitcode -> klee -> stp clauses -> klee -> output

if klee gets floating point llvm instructions, able interpret them? generate fp constraints in smt language, stp not able handle them, or doesn't generate fp constraints @ all?

any reference answer appreciated.

peter collingbourne have fork of klee floating point support. no idea how far it, though.