GPU_PTX LB+membar.cta+ctrl-p0::p1-xgyg
"Mcta-d-Rgl2-Wgl2 Rf-c-gl2l2 Ctrl-d-gl2-Wgl2 Rf-c-gl2l2"

{}

 P0                 | P1                        ;
 ld.cg.s32 r0, [r1] | ld.cg.s32 r0, [r1]        ;
 membar.cta         | and.b32 r2, r0 2147483648 ;
 mov.s32 r2, 1      | setp.eq.b32 p3, r2, 0     ;
 st.cg.s32 [r3], r2 | @p3 bra LC00              ;
                    | mov.s64 r4, 3494          ;
                    | LC00:                     ;
                    | mov.s32 r3, 1             ;
                    | st.cg.s32 [r4], r3        ;

exists (0:r0=1 /\ 1:r0=1)
(device (kernel (cta (warp P0)) (cta (warp P1))))
x:global; y:global
Generated assembler
//START _litmus_P1
	ld.cg.s32 sr01, [sr11] ;
	and.b32 sr21, sr01, 2147483648 ;
	setp.eq.b32 sp31, sr21, 0 ;
	@sp31 bra LC00 ;
	mov.s64 sr41, 3494 ;
LC00:
	mov.s32 sr31, 1 ;
	st.cg.s32 [sr41], sr31 ;
//START _litmus_P0
	ld.cg.s32 sr00, [sr10] ;
	membar.cta ;
	mov.s32 sr20, 1 ;
	st.cg.s32 [sr30], sr20 ;

Binary '/tmp/dira7dc17.tmp/LB+membar.cta+ctrl-p0::p1-xgyg-0.exe' successfully loaded
Specification clusters: 2
Specification: [[(405, 3, 'R4'), (404, 2, 'R12')], [(457, 3, 'R4'), (456, 2, 'R14')]]
Cluster 0: OK
Cluster 1: OK
!!SUCCESS!!
Test LB+membar.cta+ctrl-p0::p1-xgyg Allowed
Histogram (3 states)
66897 :>0:r0=0; 1:r0=0;
9911  :>0:r0=1; 1:r0=0;
23192 :>0:r0=0; 1:r0=1;
No

Witnesses
Positive: 0, Negative: 100000
Condition exists (0:r0=1 /\ 1:r0=1) is NOT validated
Observation LB+membar.cta+ctrl-p0::p1-xgyg Never 0 100000
Time LB+membar.cta+ctrl-p0::p1-xgyg 37.84

  -- 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/LB+membar.cta+ctrl-p0::p1-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 */