// test case for the fix in SVN r11976
// handling of != operator by parametric / exact engine in state formulas

dtmc

module M1
  s: [0..3] init 0;
  t: [0..3] init 1;

  // overlapping actions in DTMC: if both [a] and [b] are enabled, each is taken with
  // probability 1/2
  [a] s < 3 -> 1/2:(s'=s+1) + 1/2:(s'=s);
  [b] t < 3 -> 1/2:(t'=t+1) + 1/2:(t'=t);

  [c] s=3 & t=3 -> 1:true;
endmodule