a No exception b Uncaught exception Backtrace_deprecated.Error("b") Raised at Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 16-32 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.g in file "backtrace_deprecated.ml", line 18, characters 4-11 Re-raised at Backtrace_deprecated.g in file "backtrace_deprecated.ml", line 20, characters 62-71 Called from Backtrace_deprecated.run in file "backtrace_deprecated.ml", line 25, characters 11-23 Uncaught exception Backtrace_deprecated.Error("c") Raised at Backtrace_deprecated.g in file "backtrace_deprecated.ml", line 21, characters 20-37 Called from Backtrace_deprecated.run in file "backtrace_deprecated.ml", line 25, characters 11-23 Uncaught exception Backtrace_deprecated.Error("d") Raised at Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 16-32 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.f in file "backtrace_deprecated.ml", line 14, characters 42-53 Called from Backtrace_deprecated.g in file "backtrace_deprecated.ml", line 18, characters 4-11 Called from Backtrace_deprecated.run in file "backtrace_deprecated.ml", line 25, characters 11-23 Uncaught exception Invalid_argument("index out of bounds") Raised by primitive operation at Backtrace_deprecated.run in file "backtrace_deprecated.ml", line 25, characters 14-22