GPU_PTX IRWIW+membar.cta+po-p0:p3::p1:p2-xgyg
"Rf-c-gl2l2 Mcta-d-Rgl2-Wgl2 Ws-w-gl2l2 Rf-c-gl2l2 Po-d-Rgl2-Wgl2 Ws-w-gl2l2"

{}

 P0                 | P1                 | P2                 | P3                 ;
 mov.s32 r0, 2      | ld.cg.s32 r0, [r1] | mov.s32 r0, 2      | ld.cg.s32 r0, [r1] ;
 st.cg.s32 [r1], r0 | membar.cta         | st.cg.s32 [r1], r0 | mov.s32 r2, 1      ;
                    | mov.s32 r2, 1      |                    | st.cg.s32 [r3], r2 ;
                    | st.cg.s32 [r3], r2 |                    |                    ;

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

Binary '/tmp/dir3daa29.tmp/IRWIW+membar.cta+po-p0:p3::p1:p2-xgyg-0.exe' successfully loaded
Specification clusters: 4
Specification: [[(584, 3, 'R4'), (583, 2, 'R12')], [(622, 2, 'R10')], [(666, 3, 'R4'), (665, 2, 'R12')], [(710, 2, 'R10')]]
Cluster 0: OK
Cluster 1: OK
Cluster 2: OK
Cluster 3: OK
!!SUCCESS!!
Test IRWIW+membar.cta+po-p0:p3::p1:p2-xgyg Allowed
Histogram (35 states)
6941  :>1:r0=0; 3:r0=0; 0::x=1; 1::y=1;
6915  :>1:r0=1; 3:r0=0; 0::x=1; 1::y=1;
8595  :>1:r0=2; 3:r0=0; 0::x=1; 1::y=1;
7248  :>1:r0=0; 3:r0=1; 0::x=1; 1::y=1;
28    :>1:r0=1; 3:r0=1; 0::x=1; 1::y=1;
2382  :>1:r0=2; 3:r0=1; 0::x=1; 1::y=1;
7917  :>1:r0=0; 3:r0=2; 0::x=1; 1::y=1;
2219  :>1:r0=1; 3:r0=2; 0::x=1; 1::y=1;
9182  :>1:r0=2; 3:r0=2; 0::x=1; 1::y=1;
5101  :>1:r0=0; 3:r0=0; 0::x=2; 1::y=1;
4415  :>1:r0=1; 3:r0=0; 0::x=2; 1::y=1;
4785  :>1:r0=2; 3:r0=0; 0::x=2; 1::y=1;
1210  :>1:r0=0; 3:r0=1; 0::x=2; 1::y=1;
37    :>1:r0=1; 3:r0=1; 0::x=2; 1::y=1;
11    :>1:r0=2; 3:r0=1; 0::x=2; 1::y=1;
3061  :>1:r0=0; 3:r0=2; 0::x=2; 1::y=1;
912   :>1:r0=1; 3:r0=2; 0::x=2; 1::y=1;
835   :>1:r0=2; 3:r0=2; 0::x=2; 1::y=1;
5033  :>1:r0=0; 3:r0=0; 0::x=1; 1::y=2;
856   :>1:r0=1; 3:r0=0; 0::x=1; 1::y=2;
3199  :>1:r0=2; 3:r0=0; 0::x=1; 1::y=2;
4595  :>1:r0=0; 3:r0=1; 0::x=1; 1::y=2;
1     :>1:r0=1; 3:r0=1; 0::x=1; 1::y=2;
885   :>1:r0=2; 3:r0=1; 0::x=1; 1::y=2;
4664  :>1:r0=0; 3:r0=2; 0::x=1; 1::y=2;
4     :>1:r0=1; 3:r0=2; 0::x=1; 1::y=2;
811   :>1:r0=2; 3:r0=2; 0::x=1; 1::y=2;
4128  :>1:r0=0; 3:r0=0; 0::x=2; 1::y=2;
1407  :>1:r0=1; 3:r0=0; 0::x=2; 1::y=2;
516   :>1:r0=2; 3:r0=0; 0::x=2; 1::y=2;
1507  :>1:r0=0; 3:r0=1; 0::x=2; 1::y=2;
3     :>1:r0=1; 3:r0=1; 0::x=2; 1::y=2;
586   :>1:r0=0; 3:r0=2; 0::x=2; 1::y=2;
9     :>1:r0=1; 3:r0=2; 0::x=2; 1::y=2;
2     *>1:r0=2; 3:r0=2; 0::x=2; 1::y=2;
Ok

Witnesses
Positive: 2, Negative: 99998
Condition exists (0::x=2 /\ 1::y=2 /\ 1:r0=2 /\ 3:r0=2) is validated
Observation IRWIW+membar.cta+po-p0:p3::p1:p2-xgyg Sometimes 2 99998
Time IRWIW+membar.cta+po-p0:p3::p1:p2-xgyg 39.76

  -- device info --
Name:                           GeForce GTX 660
Major revision number:          3
Minor revision number:          0
Total global memory:            2147155968
Total shared memory per block:  49152
Number of multiprocessors:      5

Machine: csu8975
Revision 967, version 5.01 GPU_PTX experimental backend
Command line: ./litmus -gpu -ccopts -arch=sm_30 -gpu-max-ctas 8 -gpu-min-ctas 4 tests-sm30/IRWIW+membar.cta+po-p0:p3::p1:p2-xgyg-0.litmus
Parameters
#ifndef SIZE_OF_TEST
#define SIZE_OF_TEST 100000
#endif
#ifndef NUMBER_OF_RUN
#define NUMBER_OF_RUN 1
#endif
/* cc options: -arch=sm_30 */
/* 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: 8 */
/* gpu_min_ctas: 4 */
/* gpu_max_threads: 512 */
/* gpu_min_threads: 128 */