GPU_PTX 2+2W+membar.gl+po-p0:p1-xsyg
"Mgl-d-Wsl2-Wgl2 Ws-w-gl2l2 Po-d-Wgl2-Wsl2 Ws-w-sl2l2"

{}

 P0                 | P1                 ;
 mov.s32 r0, 2      | mov.s32 r0, 2      ;
 st.cg.s32 [r1], r0 | st.cg.s32 [r1], r0 ;
 membar.gl          | mov.s32 r2, 1      ;
 mov.s32 r2, 1      | st.cg.s32 [r3], r2 ;
 st.cg.s32 [r3], r2 |                    ;

exists (0::x=2 /\ 0::y=2)
(device (kernel (cta (warp P0) (warp P1))))
x:local; y:global
Generated assembler
//START _litmus_P1
	mov.s32 sr01, 2 ;
	st.cg.s32 [sr11], sr01 ;
	mov.s32 sr21, 1 ;
	st.cg.s32 [sr31], sr21 ;
//START _litmus_P0
	mov.s32 sr00, 2 ;
	st.cg.s32 [sr10], sr00 ;
	membar.gl ;
	mov.s32 sr20, 1 ;
	st.cg.s32 [sr30], sr20 ;

Binary '/tmp/dir5d93e0.tmp/2+2W+membar.gl+po-p0:p1-xsyg-0.exe' successfully loaded
Specification clusters: 2
Specification: [[(431, 2, 'R12'), (436, 2, 'R10')], [(486, 2, 'R10'), (488, 2, 'R12')]]
Cluster 0: OK
Cluster 1: OK
!!SUCCESS!!
Test 2+2W+membar.gl+po-p0:p1-xsyg Allowed
Histogram (3 states)
76472 :>0::x=1; 0::y=1;
23525 :>0::x=2; 0::y=1;
3     :>0::x=1; 0::y=2;
No

Witnesses
Positive: 0, Negative: 100000
Condition exists (0::x=2 /\ 0::y=2) is NOT validated
Observation 2+2W+membar.gl+po-p0:p1-xsyg Never 0 100000
Time 2+2W+membar.gl+po-p0:p1-xsyg 33.59

  -- 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-sm30/2+2W+membar.gl+po-p0:p1-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 */