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


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NO
proof of /export/starexec/sandbox2/benchmark/theBenchmark.c
# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty


Termination of the given C Problem could be disproven:

(0) C Problem
(1) CToLLVMProof [EQUIVALENT, 174 ms]
(2) LLVM problem
(3) LLVMToTerminationGraphProof [EQUIVALENT, 585 ms]
(4) LLVM Symbolic Execution Graph
(5) LLVMNonterminationProof [COMPLETE, 141 ms]
(6) NO


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

(1) CToLLVMProof (EQUIVALENT)
Compiled c-file /export/starexec/sandbox2/benchmark/theBenchmark.c to LLVM.
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(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: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc
	0:
		%1 = alloca i32, align 4
		%x = alloca *i32, align 8
		store 0, %1
		%2 = alloca i8, numElementsLit: 4
		%3 = bitcast *i8 %2 to *i32
		store %3, %x
		br %4
	4:
		%5 = load %x
		%6 = load %5
		%7 = icmp ne %6 0
		br %7, %8, %38
	8:
		%9 = load %x
		%10 = load %9
		%11 = icmp sle -5 %10
		br %11, %12, %35
	12:
		%13 = load %x
		%14 = load %13
		%15 = icmp sle %14 35
		br %15, %16, %35
	16:
		%17 = load %x
		%18 = load %17
		%19 = icmp slt %18 0
		br %19, %20, %22
	20:
		%21 = load %x
		store -5, %21
		br %34
	22:
		%23 = load %x
		%24 = load %23
		%25 = icmp sgt %24 30
		br %25, %26, %28
	26:
		%27 = load %x
		store 35, %27
		br %33
	28:
		%29 = load %x
		%30 = load %29
		%31 = sub %30 1
		%32 = load %x
		store %31, %32
		br %33
	33:
		br %34
	34:
		br %37
	35:
		%36 = load %x
		store 0, %36
		br %37
	37:
		br %4
	38:
		%39 = load %1
		ret %39


Analyze Termination of all function calls matching the pattern:
main()
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(3) LLVMToTerminationGraphProof (EQUIVALENT)
Constructed symbolic execution graph for LLVM program and proved memory safety.
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(4)
Obligation:
SE Graph
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(5) LLVMNonterminationProof (COMPLETE)
Proved nontermination with the following witness:

State #143 with references set to {}.
Nondeterministic instruction %1 = alloca i32, align 4 in node #143 yields value 119.
Nondeterministic instruction %x = alloca *i32, align 8 in node #144 yields value 41.
Nondeterministic instruction %2 = alloca i8, numElementsLit: 4 in node #146 yields value 89.

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(6)
NO