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


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NO
proof of /export/starexec/sandbox/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# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty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, 165 ms]
(2) LLVM problem
(3) LLVMToTerminationGraphProof [EQUIVALENT, 256 ms]
(4) LLVM Symbolic Execution Graph
(5) LLVMNonterminationProof [COMPLETE, 41 ms]
(6) NO


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(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: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc
	0:
		%1 = alloca i32, align 4
		%c = alloca i32, align 4
		%i = alloca i32, align 4
		store 0, %1
		store 864, %c
		%2 = load %c
		%3 = icmp sle %2 10
		br %3, %4, %12
	4:
		store 0, %i
		br %5
	5:
		%6 = load %i
		%7 = icmp slt %6 100
		br %7, %8, %11
	8:
		%9 = load %i
		%10 = add %9 1
		store %10, %i
		br %5
	11:
		br %43
	12:
		%13 = load %c
		%14 = icmp sle %13 50
		br %14, %15, %23
	15:
		store 0, %i
		br %16
	16:
		%17 = load %i
		%18 = icmp slt %17 101
		br %18, %19, %22
	19:
		%20 = load %i
		%21 = add %20 1
		store %21, %i
		br %16
	22:
		br %23
	23:
		%24 = load %c
		%25 = icmp sle %24 100
		br %25, %26, %34
	26:
		store 0, %i
		br %27
	27:
		%28 = load %i
		%29 = icmp slt %28 102
		br %29, %30, %33
	30:
		%31 = load %i
		%32 = add %31 1
		store %32, %i
		br %27
	33:
		br %42
	34:
		store 0, %i
		br %35
	35:
		%36 = load %i
		%37 = icmp slt %36 103
		br %37, %38, %41
	38:
		%39 = load %i
		%40 = add %39 0
		store %40, %i
		br %35
	41:
		br %42
	42:
		br %43
	43:
		ret 0


Analyze Termination of all function calls matching the pattern:
main()
----------------------------------------

(3) LLVMToTerminationGraphProof (EQUIVALENT)
Constructed symbolic execution graph for LLVM program and proved memory safety.
----------------------------------------

(4)
Obligation:
SE Graph
----------------------------------------

(5) LLVMNonterminationProof (COMPLETE)
Proved nontermination with the following witness:

State #170 with references set to {}.
Nondeterministic instruction %1 = alloca i32, align 4 in node #170 yields value 11.
Nondeterministic instruction %c = alloca i32, align 4 in node #171 yields value 5.
Nondeterministic instruction %i = alloca i32, align 4 in node #172 yields value 1.

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(6)
NO