// Test case for https://github.com/prismmodelchecker/prism/issues/34
//   Expression simplification for 0-x does not preserve type
//   Error during model building (explicit), simulation

dtmc

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

   [] true -> 1/2:(s'=0) + 1/2:(s'=max(1,0-s));
endmodule