GPU_PTX IRRWIW+po+membar.cta-p0:p1:p2:p3-xsyg
"Rf-w-sl2l2 Po-d-Rsl2-Rgl2 Fr-w-gl2l2 Rf-w-gl2l2 Mcta-d-Rgl2-Wsl2 Ws-w-sl2l2"

{}

 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 | ld.cg.s32 r2, [r3] | st.cg.s32 [r1], r0 | membar.cta         ;
                    |                    |                    | mov.s32 r2, 1      ;
                    |                    |                    | st.cg.s32 [r3], r2 ;

exists (0::x=2 /\ 1:r0=2 /\ 1:r2=0 /\ 3:r0=1)
(device (kernel (cta (warp P0) (warp P1) (warp P2) (warp P3))))
x:local; 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] ;
	ld.cg.s32 sr21, [sr31] ;
//START _litmus_P0
	mov.s32 sr00, 2 ;
	st.cg.s32 [sr10], sr00 ;

Binary '/tmp/dire1300e.tmp/IRRWIW+po+membar.cta-p0:p1:p2:p3-xsyg-0.exe' successfully loaded
Specification clusters: 4
Specification: [[(595, 3, 'R4'), (594, 2, 'R12')], [(632, 2, 'R10')], [(678, 3, 'R5'), (679, 3, 'R4')], [(729, 2, 'R8')]]
Cluster 0: OK
Cluster 1: OK
Cluster 2: OK
Cluster 3: OK
!!SUCCESS!!
Test IRRWIW+po+membar.cta-p0:p1:p2:p3-xsyg Allowed
Histogram (24 states)
17693 :>1:r0=0; 1:r2=0; 3:r0=0; 0::x=1;
3717  :>1:r0=1; 1:r2=0; 3:r0=0; 0::x=1;
10764 :>1:r0=2; 1:r2=0; 3:r0=0; 0::x=1;
3433  :>1:r0=0; 1:r2=1; 3:r0=0; 0::x=1;
1778  :>1:r0=1; 1:r2=1; 3:r0=0; 0::x=1;
3003  :>1:r0=2; 1:r2=1; 3:r0=0; 0::x=1;
12554 :>1:r0=0; 1:r2=0; 3:r0=1; 0::x=1;
550   :>1:r0=1; 1:r2=0; 3:r0=1; 0::x=1;
5915  :>1:r0=2; 1:r2=0; 3:r0=1; 0::x=1;
9812  :>1:r0=0; 1:r2=1; 3:r0=1; 0::x=1;
1437  :>1:r0=1; 1:r2=1; 3:r0=1; 0::x=1;
8416  :>1:r0=2; 1:r2=1; 3:r0=1; 0::x=1;
8228  :>1:r0=0; 1:r2=0; 3:r0=0; 0::x=2;
2170  :>1:r0=1; 1:r2=0; 3:r0=0; 0::x=2;
1565  :>1:r0=2; 1:r2=0; 3:r0=0; 0::x=2;
1993  :>1:r0=0; 1:r2=1; 3:r0=0; 0::x=2;
1026  :>1:r0=1; 1:r2=1; 3:r0=0; 0::x=2;
940   :>1:r0=2; 1:r2=1; 3:r0=0; 0::x=2;
1503  :>1:r0=0; 1:r2=0; 3:r0=1; 0::x=2;
154   :>1:r0=1; 1:r2=0; 3:r0=1; 0::x=2;
110   *>1:r0=2; 1:r2=0; 3:r0=1; 0::x=2;
2427  :>1:r0=0; 1:r2=1; 3:r0=1; 0::x=2;
408   :>1:r0=1; 1:r2=1; 3:r0=1; 0::x=2;
404   :>1:r0=2; 1:r2=1; 3:r0=1; 0::x=2;
Ok

Witnesses
Positive: 110, Negative: 99890
Condition exists (0::x=2 /\ 1:r0=2 /\ 1:r2=0 /\ 3:r0=1) is validated
Observation IRRWIW+po+membar.cta-p0:p1:p2:p3-xsyg Sometimes 110 99890
Time IRRWIW+po+membar.cta-p0:p1:p2:p3-xsyg 34.83

  -- 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/IRRWIW+po+membar.cta-p0:p1:p2:p3-xsyg-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 */