E1:     C1 CALL pred uci_index.main/2-0 (det) uci_index.m:18
mdb> echo on
Command echo enabled.
mdb> context none
Contexts will not be printed.
mdb> step
      E2:     C2 CALL func uci_index.mai/0-0 (det)
mdb> step
      E3:     C2 EXIT func uci_index.mai/0-0 (det)
mdb> step
      E4:     C3 CALL func uci_index.mbi/0-0 (det)
mdb> step
      E5:     C3 EXIT func uci_index.mbi/0-0 (det)
mdb> step
      E6:     C4 CALL __Compare__ for uci_index.i/0-0 (det)
mdb> step
      E7:     C5 CALL pred private_builtin.builtin_int_lt/2-0 (semidet)
mdb> quit -y