1INPUT_SIZE ?= 32CFLAGS_SIZE = -DINPUT_SIZE=$(INPUT_SIZE)34CLANG ?= clang5CFLAGS += -std=c99 -g -O0 -Xclang -disable-O0-optnone $(CFLAGS_SIZE)67base64.ll: base64.c8 $(CLANG) -emit-llvm -S -c -o $@ $< $(CFLAGS)9base64.c: base64.h1011sim: base64.ll12 klee --solver-backend=z3 \13 --search=dfs \14 --exit-on-error \15 --use-merge \16 --libc=klee \17 --write-smt2s \18 --use-query-log=all:smt2 \19 $<2021clean:22 rm -rf klee-* base64.ll2324.PHONY: sim clean