GPU_PTX Z6.2+membar.cta+po+ctrl-p0::p1:p2-xgygzs
"Mcta-d-Wg-Wg Rf-c-g Po-d-Rg-Ws Rf-w-s Ctrl-d-s-Wg Ws-c-g"

{}

 P0                 | P1                 | P2                        ;
 mov.s32 r0, 2      | ld.cg.s32 r0, [r1] | ld.cg.s32 r0, [r1]        ;
 st.cg.s32 [r1], r0 | mov.s32 r2, 1      | and.b32 r2, r0 2147483648 ;
 membar.cta         | st.cg.s32 [r3], r2 | setp.eq.b32 p8, r2, 0     ;
 mov.s32 r2, 1      |                    | @p8 bra LC00              ;
 st.cg.s32 [r3], r2 |                    | mov.s64 r4, 3494          ;
                    |                    | LC00:                     ;
                    |                    | mov.s32 r3, 1             ;
                    |                    | st.cg.s32 [r4], r3        ;

exists (0::x=2 /\ 1:r0=1 /\ 2:r0=1)
(device (kernel (cta (warp P0)) (cta (warp P1) (warp P2))))
x:global; y:global; z:local
Generated assembler
//START _litmus_P2
	ld.cg.s32 sr02, [sr12] ;
	and.b32 sr22, sr02, 2147483648 ;
	setp.eq.b32 sp82, sr22, 0 ;
	@sp82 bra LC00 ;
	mov.s64 sr42, 3494 ;
LC00:
	mov.s32 sr32, 1 ;
	st.cg.s32 [sr42], sr32 ;
//START _litmus_P1
	ld.cg.s32 sr01, [sr11] ;
	mov.s32 sr21, 1 ;
	st.cg.s32 [sr31], sr21 ;
//START _litmus_P0
	mov.s32 sr00, 2 ;
	st.cg.s32 [sr10], sr00 ;
	membar.cta ;
	mov.s32 sr20, 1 ;
	st.cg.s32 [sr30], sr20 ;

Binary '/tmp/dir54f456.tmp/Z6.2+membar.cta+po+ctrl-p0::p1:p2-xgygzs-0.exe' successfully loaded
Specification clusters: 3
Specification: [[(833, 3, 'R0'), (831, 2, 'R12')], [(908, 3, 'R0'), (909, 2, 'R12')], [(976, 2, 'R10'), (978, 2, 'R8')]]
Cluster 0: OK
Cluster 1: OK
Cluster 2: OK
!!SUCCESS!!
Test Z6.2+membar.cta+po+ctrl-p0::p1:p2-xgygzs Allowed
Histogram (8 states)
4730  :>1:r0=0; 2:r0=0; 0::x=1;
2497  :>1:r0=1; 2:r0=0; 0::x=1;
9834  :>1:r0=0; 2:r0=1; 0::x=1;
3702  :>1:r0=1; 2:r0=1; 0::x=1;
17227 :>1:r0=0; 2:r0=0; 0::x=2;
826   :>1:r0=1; 2:r0=0; 0::x=2;
11131 :>1:r0=0; 2:r0=1; 0::x=2;
53    *>1:r0=1; 2:r0=1; 0::x=2;
Ok

Witnesses
Positive: 53, Negative: 49947
Condition exists (0::x=2 /\ 1:r0=1 /\ 2:r0=1) is validated
Observation Z6.2+membar.cta+po+ctrl-p0::p1:p2-xgygzs Sometimes 53 49947
Time Z6.2+membar.cta+po+ctrl-p0::p1:p2-xgygzs 4.95

  -- device info --
Name:                           GeForce GTX 750 Ti
Major revision number:          5
Minor revision number:          0
Total global memory:            2147287040
Total shared memory per block:  49152
Number of multiprocessors:      5

Machine: formal
Revision 1383, version 5.01 GPU_PTX experimental backend
Command line: ./litmus -mach GTX750.cfg -a 8 -gpu-verf-comp true big_bucket/Z6.2+membar.cta+po+ctrl-p0::p1:p2-xgygzs-0.litmus -s 50000
Parameters
#ifndef SIZE_OF_TEST
#define SIZE_OF_TEST 50000
#endif
#ifndef NUMBER_OF_RUN
#define NUMBER_OF_RUN 1
#endif
/* cc options: -arch=sm_50 */
/* barrier: user */
/* speedcheck: no */
/* gpu_general_bc: true */
/* gpu_mem_stress: true */
/* gpu-rand-threads: true */
/* gpu_cuda: true */
/* gpu_gen_addr: true */
/* gpu_cvt_global_to_gen: true */
/* gpu_cvt_shared_to_gen: true */
/* gpu_max_ctas: 5 */
/* gpu_min_ctas: 4 */
/* gpu_max_threads: 256 */
/* gpu_min_threads: 128 */