1. A method of software debugging with execution match determinations, the method comprising: inserting, by a compiler while compiling source code into a debuggable program, a phantom breakpoint at every line of source code; including in the debuggable program, by the compiler, a breakpoint handling module and an exit handler; executing the debuggable program including encountering one or more of the phantom breakpoints and removing, by the breakpoint handling module, each encountered phantom breakpoint; creating, by the exit handler, upon exiting execution of the debuggable program, a copy of the debuggable program that includes only phantom breakpoints not encountered during execution; providing the copy of the debuggable program to a debugger; identifying, by the debugger, lines of source code of the copy of the debuggable program that do not include a phantom breakpoint; inserting, by the debugger, an executed phantom breakpoint at one or more of the identified lines of source code of the copy of the debuggable program; executing, by the debugger, the copy of the debuggable program including, removing any phantom or executed phantom breakpoint; and after exiting execution of the copy of the debuggable program, determining, by the debugger, whether execution of the copy of the debuggable program matches the execution of the debuggable program including, determining that the executions do not match if any phantom breakpoints were removed during execution of the copy of the debuggable program or any executed phantom breakpoint remains after exiting execution of the copy of the debuggable program.