GPU_PTX IRRWIW+ctrl+membar.cta-p0:p3::p1::p2-xgyg
"Rf-c-g Ctrl-d-g-Rg Fr-c-g Rf-c-g Mcta-d-Rg-Wg Ws-w-g"

{}

 P0                 | P1                        | P2                 | P3                 ;
 mov.s32 r0, 2      | ld.cg.s32 r0, [r1]        | mov.s32 r0, 1      | ld.cg.s32 r0, [r1] ;
 st.cg.s32 [r1], r0 | and.b32 r2, r0 2147483648 | st.cg.s32 [r1], r0 | membar.cta         ;
                    | setp.eq.b32 p1, r2, 0     |                    | mov.s32 r2, 1      ;
                    | @p1 bra LC00              |                    | st.cg.s32 [r3], r2 ;
                    | mov.s64 r4, 3494          |                    |                    ;
                    | LC00:                     |                    |                    ;
                    | ld.cg.s32 r3, [r4]        |                    |                    ;

exists (0::x=2 /\ 1:r0=2 /\ 1:r3=0 /\ 3:r0=1)
(device (kernel (cta (warp P0) (warp P3)) (cta (warp P1)) (cta (warp P2))))
x:global; y:global
Generated assembler
//START _litmus_P3
	ld.cg.s32 sr03, [sr13] ;
	membar.cta ;
	mov.s32 sr23, 1 ;
	st.cg.s32 [sr33], sr23 ;
//START _litmus_P2
	mov.s32 sr02, 1 ;
	st.cg.s32 [sr12], sr02 ;
//START _litmus_P1
	ld.cg.s32 sr01, [sr11] ;
	and.b32 sr21, sr01, 2147483648 ;
	setp.eq.b32 sp11, sr21, 0 ;
	@sp11 bra LC00 ;
	mov.s64 sr41, 3494 ;
LC00:
	ld.cg.s32 sr31, [sr41] ;
//START _litmus_P0
	mov.s32 sr00, 2 ;
	st.cg.s32 [sr10], sr00 ;

Binary '/tmp/dir8119f4.tmp/IRRWIW+ctrl+membar.cta-p0:p3::p1::p2-xgyg-0.exe' successfully loaded
Specification clusters: 4
Specification: [[(622, 3, 'R4'), (619, 2, 'R10')], [(662, 2, 'R10')], [(710, 3, 'R4'), (709, 3, 'R5')], [(757, 2, 'R10')]]
Cluster 0: OK
Cluster 1: OK
Cluster 2: OK
Cluster 3: OK
!!SUCCESS!!
Test IRRWIW+ctrl+membar.cta-p0:p3::p1::p2-xgyg Allowed
Histogram (24 states)
3282  :>1:r0=0; 1:r3=0; 3:r0=0; 0::x=1;
248   :>1:r0=1; 1:r3=0; 3:r0=0; 0::x=1;
1252  :>1:r0=2; 1:r3=0; 3:r0=0; 0::x=1;
7200  :>1:r0=0; 1:r3=1; 3:r0=0; 0::x=1;
3696  :>1:r0=1; 1:r3=1; 3:r0=0; 0::x=1;
5954  :>1:r0=2; 1:r3=1; 3:r0=0; 0::x=1;
755   :>1:r0=0; 1:r3=0; 3:r0=1; 0::x=1;
12    :>1:r0=1; 1:r3=0; 3:r0=1; 0::x=1;
156   :>1:r0=2; 1:r3=0; 3:r0=1; 0::x=1;
8050  :>1:r0=0; 1:r3=1; 3:r0=1; 0::x=1;
1316  :>1:r0=1; 1:r3=1; 3:r0=1; 0::x=1;
5187  :>1:r0=2; 1:r3=1; 3:r0=1; 0::x=1;
1391  :>1:r0=0; 1:r3=0; 3:r0=0; 0::x=2;
308   :>1:r0=1; 1:r3=0; 3:r0=0; 0::x=2;
129   :>1:r0=2; 1:r3=0; 3:r0=0; 0::x=2;
4019  :>1:r0=0; 1:r3=1; 3:r0=0; 0::x=2;
2052  :>1:r0=1; 1:r3=1; 3:r0=0; 0::x=2;
2131  :>1:r0=2; 1:r3=1; 3:r0=0; 0::x=2;
174   :>1:r0=0; 1:r3=0; 3:r0=1; 0::x=2;
11    :>1:r0=1; 1:r3=0; 3:r0=1; 0::x=2;
6     *>1:r0=2; 1:r3=0; 3:r0=1; 0::x=2;
1862  :>1:r0=0; 1:r3=1; 3:r0=1; 0::x=2;
375   :>1:r0=1; 1:r3=1; 3:r0=1; 0::x=2;
434   :>1:r0=2; 1:r3=1; 3:r0=1; 0::x=2;
Ok

Witnesses
Positive: 6, Negative: 49994
Condition exists (0::x=2 /\ 1:r0=2 /\ 1:r3=0 /\ 3:r0=1) is validated
Observation IRRWIW+ctrl+membar.cta-p0:p3::p1::p2-xgyg Sometimes 6 49994
Time IRRWIW+ctrl+membar.cta-p0:p3::p1::p2-xgyg 17.30

  -- device info --
Name:                           GeForce GTX TITAN
Major revision number:          3
Minor revision number:          5
Total global memory:            6442123264
Total shared memory per block:  49152
Number of multiprocessors:      14

Machine: formal
Revision 1383, version 5.01 GPU_PTX experimental backend
Command line: ./litmus -mach GTXTitan.cfg -a 8 -gpu-verf-comp true big_bucket/IRRWIW+ctrl+membar.cta-p0:p3::p1::p2-xgyg-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_35 */
/* 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: 14 */
/* gpu_min_ctas: 10 */
/* gpu_max_threads: 512 */
/* gpu_min_threads: 128 */