Commit bde1e2c3 by David Hauzar

### Tests for generating counterexamples with cvc4.

parent 1a6b6332
 theory T use import int.Int goal g_no_lab : forall x:int. x >= 42 -> x + 3 <= 50 goal g_lab0 : forall x "model":int. ("model" x >= 42) -> ("model" x + 3 <= 50) constant g : int goal g2_lab : forall x "model":int. ("model" g >= x) end theory ModelInt use import int.Int goal test0 : forall x "model":int. not (0 < x < 1) goal test1 : forall x "model":int. not (0 <= x <= 1) use import int.EuclideanDivision goal test2 : forall x "model":int. div x x = 1 goal test_overflow: forall x "model" y "model" : int. 0 <= x <= 65535 /\ 0 <= y <= 65535 -> 0 <= x + y <= 65535 goal test_overflow2: forall x "model" y "model" : int. -2 <= x <= 65535 /\ -2 <= y <= 65535 -> -2 <= x + y <= 65535 predicate is_int16 (x:int) = -65536 <= x <= 65535 goal test_overflow_int16: forall x "model" y "model" : int. is_int16 x /\ is_int16 y -> is_int16 (x + y) goal test_overflow_int16_alt: forall x "model" y "model" : int. -65536 <= x <= 65535 /\ -65536 <= y <= 65535 -> -65536 <= x+y <= 65535 goal test_overflow_int16_bis: forall x "model" y "model" : int. is_int16 x /\ is_int16 y /\ ("model" 0 <= x) /\ (x <= y) -> is_int16 (x + y) predicate is_int32 (x:int) = -2147483648 <= x <= 2147483647 goal test_overflow_int32: forall x "model" y "model" : int. is_int32 x /\ is_int32 y -> is_int32 (x + y) goal test_overflow_int32_bis: forall x "model" y "model" : int. is_int32 x /\ is_int32 y /\ 0 <= x <= y -> is_int32 (x + y) goal test_overflow_int32_bis_inline: forall x "model" y "model" : int. -2147483648 <= x <= 2147483647 /\ -2147483648 <= y <= 2147483647 /\ 0 <= x <= y -> -2147483648 <= x + y <= 2147483647 end theory ModelReal use import real.Real goal test1 : forall x "model":real. not (0.0 < x < 1.0) goal test2 : forall x "model":real. x/x=1.0 end theory ModelArray use import map.Map goal t1 : forall t "model" :map int int, i "model" : int. get (set t 0 42) i = get t i end
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