9.03/3.20 NO 9.67/3.33 proof of /export/starexec/sandbox/benchmark/theBenchmark.c 9.67/3.33 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.67/3.33 9.67/3.33 9.67/3.33 Termination of the given C Problem could be disproven: 9.67/3.33 9.67/3.33 (0) C Problem 9.67/3.33 (1) CToLLVMProof [EQUIVALENT, 164 ms] 9.67/3.33 (2) LLVM problem 9.67/3.33 (3) LLVMToTerminationGraphProof [EQUIVALENT, 513 ms] 9.67/3.33 (4) LLVM Symbolic Execution Graph 9.67/3.33 (5) LLVMNonterminationProof [COMPLETE, 105 ms] 9.67/3.33 (6) NO 9.67/3.33 9.67/3.33 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (0) 9.67/3.33 Obligation: 9.67/3.33 c file /export/starexec/sandbox/benchmark/theBenchmark.c 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (1) CToLLVMProof (EQUIVALENT) 9.67/3.33 Compiled c-file /export/starexec/sandbox/benchmark/theBenchmark.c to LLVM. 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (2) 9.67/3.33 Obligation: 9.67/3.33 LLVM Problem 9.67/3.33 9.67/3.33 Aliases: 9.67/3.33 9.67/3.33 Data layout: 9.67/3.33 9.67/3.33 "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" 9.67/3.33 9.67/3.33 Machine: 9.67/3.33 9.67/3.33 "x86_64-pc-linux-gnu" 9.67/3.33 9.67/3.33 Type definitions: 9.67/3.33 9.67/3.33 Global variables: 9.67/3.33 9.67/3.33 Function declarations and definitions: 9.67/3.33 9.67/3.33 *BasicFunctionTypename: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 9.67/3.33 *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 9.67/3.33 0: 9.67/3.33 %1 = alloca i32, align 4 9.67/3.33 %i = alloca i32, align 4 9.67/3.33 store 0, %1 9.67/3.33 %2 = call i32 @__VERIFIER_nondet_int() 9.67/3.33 store %2, %i 9.67/3.33 br %3 9.67/3.33 3: 9.67/3.33 %4 = load %i 9.67/3.33 %5 = icmp sgt %4 5 9.67/3.33 br %5, %6, %13 9.67/3.33 6: 9.67/3.33 %7 = load %i 9.67/3.33 %8 = icmp ne %7 10 9.67/3.33 br %8, %9, %12 9.67/3.33 9: 9.67/3.33 %10 = load %i 9.67/3.33 %11 = sub %10 1 9.67/3.33 store %11, %i 9.67/3.33 br %12 9.67/3.33 12: 9.67/3.33 br %3 9.67/3.33 13: 9.67/3.33 ret 0 9.67/3.33 9.67/3.33 9.67/3.33 Analyze Termination of all function calls matching the pattern: 9.67/3.33 main() 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (3) LLVMToTerminationGraphProof (EQUIVALENT) 9.67/3.33 Constructed symbolic execution graph for LLVM program and proved memory safety. 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (4) 9.67/3.33 Obligation: 9.67/3.33 SE Graph 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (5) LLVMNonterminationProof (COMPLETE) 9.67/3.33 Proved nontermination with the following witness: 9.67/3.33 9.67/3.33 State #57 with references set to {}. 9.67/3.33 Nondeterministic instruction %1 = alloca i32, align 4 in node #57 yields value 13. 9.67/3.33 Nondeterministic instruction %i = alloca i32, align 4 in node #58 yields value 1. 9.67/3.33 Nondeterministic instruction %2 = call i32 @__VERIFIER_nondet_int() in node #60 yields value 11. 9.67/3.33 9.67/3.33 ---------------------------------------- 9.67/3.33 9.67/3.33 (6) 9.67/3.33 NO 9.67/3.37 EOF