C pair #487568439

details

property	value
status	complete
benchmark	svcomp_cstrcspn_true-termination.c
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n027.star.cs.uiowa.edu
space	SV-COMP_Termination_Category

run statistics

property	value
solver	AProVE
configuration	c
runtime (wallclock)	21.2191319466 seconds
cpu usage	74.442821174
max memory	4.659032064E9

stage attributes

key	value
output-size	148254
starexec-result	YES

output

/export/starexec/sandbox2/solver/bin/starexec_run_c /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files


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


YES
proof of /export/starexec/sandbox2/benchmark/theBenchmark.c
# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty


Termination of the given C Problem could be proven:

(0) C Problem
(1) CToLLVMProof [EQUIVALENT, 174 ms]
(2) LLVM problem
(3) LLVMToTerminationGraphProof [EQUIVALENT, 7631 ms]
(4) LLVM Symbolic Execution Graph
(5) SymbolicExecutionGraphToSCCProof [SOUND, 0 ms]
(6) AND
    (7) LLVM Symbolic Execution SCC
        (8) SCC2IRS [SOUND, 419 ms]
        (9) IntTRS
        (10) IRS2T2 [EQUIVALENT, 0 ms]
        (11) T2IntSys
        (12) T2 [EQUIVALENT, 1574 ms]
        (13) YES
    (14) LLVM Symbolic Execution SCC
        (15) SCC2IRS [SOUND, 173 ms]
        (16) IntTRS
        (17) IntTRSCompressionProof [EQUIVALENT, 0 ms]
        (18) IntTRS
        (19) IntTRSUnneededArgumentFilterProof [EQUIVALENT, 0 ms]
        (20) IntTRS
        (21) RankingReductionPairProof [EQUIVALENT, 16 ms]
        (22) YES
    (23) LLVM Symbolic Execution SCC
        (24) SCC2IRS [SOUND, 162 ms]
        (25) IntTRS
        (26) IntTRSCompressionProof [EQUIVALENT, 0 ms]
        (27) IntTRS
        (28) RankingReductionPairProof [EQUIVALENT, 0 ms]
        (29) YES
    (30) LLVM Symbolic Execution SCC
        (31) SCC2IRS [SOUND, 119 ms]
        (32) IntTRS
        (33) IntTRSCompressionProof [EQUIVALENT, 0 ms]
        (34) IntTRS
        (35) RankingReductionPairProof [EQUIVALENT, 0 ms]
        (36) YES


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

(0)
Obligation:
c file /export/starexec/sandbox2/benchmark/theBenchmark.c
----------------------------------------

(1) CToLLVMProof (EQUIVALENT)
Compiled c-file /export/starexec/sandbox2/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: false visibilityType: DEFAULT callingConvention: ccc
*BasicFunctionTypename: "malloc" returnParam: *i8 parameters: (i64) variableLength: false visibilityType: DEFAULT callingConvention: ccc
*BasicFunctionTypename: "__VERIFIER_nondet_String" linkageType: EXTERNALLY_VISIBLE returnParam: *i8 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc
	0:
		%length = alloca i32, align 4
		%nondetString = alloca *i8, align 8
		%1 = call i32 @__VERIFIER_nondet_int()
		store %1, %length
		%2 = load %length
		%3 = icmp slt %2 1
		br %3, %4, %5
	4:
		store 1, %length
		br %5
	5:
		%6 = load %length
		%7 = sext i32 %6 to i64

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