7.31/2.77 NO 7.31/2.79 proof of /export/starexec/sandbox/benchmark/theBenchmark.c 7.31/2.79 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 7.31/2.79 7.31/2.79 7.31/2.79 Termination of the given C Problem could be disproven: 7.31/2.79 7.31/2.79 (0) C Problem 7.31/2.79 (1) CToLLVMProof [EQUIVALENT, 162 ms] 7.31/2.79 (2) LLVM problem 7.31/2.79 (3) LLVMToTerminationGraphProof [EQUIVALENT, 367 ms] 7.31/2.79 (4) LLVM Symbolic Execution Graph 7.31/2.79 (5) LLVMNonterminationProof [COMPLETE, 86 ms] 7.31/2.79 (6) NO 7.31/2.79 7.31/2.79 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (0) 7.31/2.79 Obligation: 7.31/2.79 c file /export/starexec/sandbox/benchmark/theBenchmark.c 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (1) CToLLVMProof (EQUIVALENT) 7.31/2.79 Compiled c-file /export/starexec/sandbox/benchmark/theBenchmark.c to LLVM. 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (2) 7.31/2.79 Obligation: 7.31/2.79 LLVM Problem 7.31/2.79 7.31/2.79 Aliases: 7.31/2.79 7.31/2.79 Data layout: 7.31/2.79 7.31/2.79 "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" 7.31/2.79 7.31/2.79 Machine: 7.31/2.79 7.31/2.79 "x86_64-pc-linux-gnu" 7.31/2.79 7.31/2.79 Type definitions: 7.31/2.79 7.31/2.79 Global variables: 7.31/2.79 7.31/2.79 Function declarations and definitions: 7.31/2.79 7.31/2.79 *BasicFunctionTypename: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 7.31/2.79 *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 7.31/2.79 0: 7.31/2.79 %1 = alloca i32, align 4 7.31/2.79 %i = alloca i32, align 4 7.31/2.79 store 0, %1 7.31/2.79 %2 = call i32 @__VERIFIER_nondet_int() 7.31/2.79 store %2, %i 7.31/2.79 br %3 7.31/2.79 3: 7.31/2.79 %4 = load %i 7.31/2.79 %5 = icmp sgt %4 0 7.31/2.79 br %5, %6, %9 7.31/2.79 6: 7.31/2.79 %7 = load %i 7.31/2.79 %8 = add %7 1 7.31/2.79 store %8, %i 7.31/2.79 br %3 7.31/2.79 9: 7.31/2.79 ret 0 7.31/2.79 7.31/2.79 7.31/2.79 Analyze Termination of all function calls matching the pattern: 7.31/2.79 main() 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (3) LLVMToTerminationGraphProof (EQUIVALENT) 7.31/2.79 Constructed symbolic execution graph for LLVM program and proved memory safety. 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (4) 7.31/2.79 Obligation: 7.31/2.79 SE Graph 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (5) LLVMNonterminationProof (COMPLETE) 7.31/2.79 Proved nontermination with the following witness: 7.31/2.79 7.31/2.79 State #45 with references set to {}. 7.31/2.79 Nondeterministic instruction %1 = alloca i32, align 4 in node #45 yields value 13. 7.31/2.79 Nondeterministic instruction %i = alloca i32, align 4 in node #46 yields value 1. 7.31/2.79 Nondeterministic instruction %2 = call i32 @__VERIFIER_nondet_int() in node #48 yields value 7. 7.31/2.79 7.31/2.79 ---------------------------------------- 7.31/2.79 7.31/2.79 (6) 7.31/2.79 NO 8.19/2.90 EOF