C 88007 pair #381735105

details

property	value
status	complete
benchmark	Ackermann_false-termination.c
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n071.star.cs.uiowa.edu
space	Ton_Chanh_15

run statistics

property	value
solver	AProVE
configuration	c
runtime (wallclock)	22.4253730774 seconds
cpu usage	63.057580375
max memory	4.208136192E9

stage attributes

key	value
output-size	466356
starexec-result	MAYBE

output

/export/starexec/sandbox/solver/bin/starexec_run_c /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files


--------------------------------------------------------------------------------


MAYBE
proof of /export/starexec/sandbox/benchmark/theBenchmark.c
# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty


Termination of the given C Problem could not be shown:

(0) C Problem
(1) CToLLVMProof [EQUIVALENT, 179 ms]
(2) LLVM problem
(3) LLVMToTerminationGraphProof [EQUIVALENT, 13.2 s]
(4) LLVM Symbolic Execution Graph
(5) SymbolicExecutionGraphToSCCProof [SOUND, 0 ms]
(6) LLVM Symbolic Execution SCC
    (7) SCC2IRS [SOUND, 247 ms]
    (8) IntTRS
        (9) IRS2T2 [EQUIVALENT, 0 ms]
        (10) T2IntSys
        (11) T2 [COMPLETE, 1373 ms]
        (12) NO
    (13) SCC2IRS [SOUND, 229 ms]
    (14) IntTRS
        (15) IRS2T2 [EQUIVALENT, 0 ms]
        (16) T2IntSys
        (17) T2 [COMPLETE, 3355 ms]
        (18) NO
(19) SymbolicExecutionGraphToLassoProof [EQUIVALENT, 0 ms]
(20) LLVM Symbolic Execution Lasso
    (21) Lasso2IRS [SOUND, 190 ms]
    (22) IntTRS
    (23) IRS2T2 [EQUIVALENT, 0 ms]
    (24) T2IntSys
    (25) T2 [COMPLETE, 1341 ms]
    (26) NO
(27) SEGraph to IRS [SOUND, 891 ms]
(28) IntTRS
    (29) IRS2T2 [EQUIVALENT, 11 ms]
    (30) T2IntSys
    (31) T2 [COMPLETE, 2570 ms]
    (32) NO


----------------------------------------

(0)
Obligation:
c file /export/starexec/sandbox/benchmark/theBenchmark.c
----------------------------------------

(1) CToLLVMProof (EQUIVALENT)
Compiled c-file /export/starexec/sandbox/benchmark/theBenchmark.c to LLVM.
----------------------------------------

(2)
Obligation:
LLVM Problem

Aliases:

Data layout:

"e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"

Machine:

"x86_64-pc-linux-gnu"

Type definitions:

Global variables:

Function declarations and definitions:

*BasicFunctionTypename: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: true visibilityType: DEFAULT callingConvention: ccc
*BasicFunctionTypename: "Ack" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: (m i32, n i32) variableLength: false visibilityType: DEFAULT callingConvention: ccc
	0:
		%1 = alloca i32, align 4
		%2 = alloca i32, align 4
		%3 = alloca i32, align 4
		store %m, %2
		store %n, %3
		%4 = load %2
		%5 = icmp eq %4 0
		br %5, %6, %9
	6:
		%7 = load %3
		%8 = add %7 1
		store %8, %1
		br %24
	9:
		%10 = load %3
		%11 = icmp eq %10 0
		br %11, %12, %16
	12:

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