sources/0503_loop_nondet.c:3.2-4.2: [|x=0|]
sources/0503_loop_nondet.c:3.2-4.2: [|x-1=0|]
sources/0503_loop_nondet.c:3.2-4.2: [|x-2=0|]
sources/0503_loop_nondet.c:3.2-4.2: [|x-3>=0|]
Output: [|x>=0|]