// RESULT: 1.2  //  = 1+(0.8*0+0.1*1+0.1*1)   
Rmin=? [ (F "goal1") | (F "goal2") ]

// RESULT: 3.5
Rmax=? [ (F "goal1") | (F "goal2") ]

// RESULT: 1.2
Rmin=? [ X F ("goal1" | "goal2") ]

// RESULT: 1.2
Rmin=? [ F X ("goal1" | "goal2") ]

// RESULT: 2
Rmin=? [ X X ("goal1" | "goal2") ]

// RESULT: Infinity
Rmin=? [ X X "goal2" ]

// RESULT: 19/15
Rmin=? [ F "goal2" ]

// RESULT: 19/15
Rmin=? [ (F "goal2") ]

// RESULT: 19/15
Rmin=? [ s!=3 U "goal2" ]

// RESULT: Error:co-safe
Rmin=? [ F G "goal1" ]

// RESULT: Error:co-safe
Rmax=? [ F G "goal1" ]

// RESULT: Error:co-safe
Rmax=? [ (G !"hazard")&(G F "goal1") ]