Issue when using delphi as the solver

[ktpss97094]

I used the default solver to run the following minimal example:
$ uclid min_smto_bug.ucl

module main {
  var step : integer;
  init { step = 0; }
  next { step' = step + 1; }
  invariant test : step != 1;
  control {
    v = bmc(2);
    print_results;
  }
}

gives the expected output:

Successfully instantiated 1 module(s).
2 assertions passed.
1 assertions failed.
0 assertions indeterminate.
  PASSED -> v [Step #0] property test @ min_smto_bug.ucl, line 5
  PASSED -> v [Step #2] property test @ min_smto_bug.ucl, line 5
  FAILED -> v [Step #1] property test @ min_smto_bug.ucl, line 5
Finished execution for module: main.

But used the delphi solver to run the same example:
$ uclid -s "delphi --smto" min_smto_bug.ucl

gives the unexpected output:

Successfully instantiated 1 module(s).
3 assertions passed.
0 assertions failed.
0 assertions indeterminate.
  PASSED -> v [Step #0] property test @ min_smto_bug.ucl, line 5
  PASSED -> v [Step #1] property test @ min_smto_bug.ucl, line 5
  PASSED -> v [Step #2] property test @ min_smto_bug.ucl, line 5
Finished execution for module: main.

I'm wondering whether there's an issue with the delphi solver or if I'm using it incorrectly. I use the delphi solver because I want to use oracle functions. Thanks.