9.05/3.14 NO 9.41/3.22 proof of /export/starexec/sandbox/benchmark/theBenchmark.c 9.41/3.22 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.41/3.22 9.41/3.22 9.41/3.22 Termination of the given C Problem could be disproven: 9.41/3.22 9.41/3.22 (0) C Problem 9.41/3.22 (1) CToLLVMProof [EQUIVALENT, 159 ms] 9.41/3.22 (2) LLVM problem 9.41/3.22 (3) LLVMToTerminationGraphProof [EQUIVALENT, 431 ms] 9.41/3.22 (4) LLVM Symbolic Execution Graph 9.41/3.22 (5) LLVMNonterminationProof [COMPLETE, 190 ms] 9.41/3.22 (6) NO 9.41/3.22 9.41/3.22 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (0) 9.41/3.22 Obligation: 9.41/3.22 c file /export/starexec/sandbox/benchmark/theBenchmark.c 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (1) CToLLVMProof (EQUIVALENT) 9.41/3.22 Compiled c-file /export/starexec/sandbox/benchmark/theBenchmark.c to LLVM. 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (2) 9.41/3.22 Obligation: 9.41/3.22 LLVM Problem 9.41/3.22 9.41/3.22 Aliases: 9.41/3.22 9.41/3.22 Data layout: 9.41/3.22 9.41/3.22 "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" 9.41/3.22 9.41/3.22 Machine: 9.41/3.22 9.41/3.22 "x86_64-pc-linux-gnu" 9.41/3.22 9.41/3.22 Type definitions: 9.41/3.22 9.41/3.22 Global variables: 9.41/3.22 9.41/3.22 Function declarations and definitions: 9.41/3.22 9.41/3.22 *BasicFunctionTypename: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 9.41/3.22 *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 9.41/3.22 0: 9.41/3.22 %1 = alloca i32, align 4 9.41/3.22 %i = alloca i32, align 4 9.41/3.22 %j = alloca i32, align 4 9.41/3.22 %t = alloca i32, align 4 9.41/3.22 store 0, %1 9.41/3.22 %2 = call i32 @__VERIFIER_nondet_int() 9.41/3.22 store %2, %i 9.41/3.22 %3 = call i32 @__VERIFIER_nondet_int() 9.41/3.22 store %3, %j 9.41/3.22 store 0, %t 9.41/3.22 br %4 9.41/3.22 4: 9.41/3.22 %5 = load %i 9.41/3.22 %6 = icmp ne %5 0 9.41/3.22 br %6, %7, %10 9.41/3.22 7: 9.41/3.22 %8 = load %j 9.41/3.22 %9 = icmp ne %8 0 9.41/3.22 br %10 9.41/3.22 10: 9.41/3.22 %11 = phi [0, %4], [%9, %7] 9.41/3.22 br %11, %12, %16 9.41/3.22 12: 9.41/3.22 %13 = load %i 9.41/3.22 store %13, %t 9.41/3.22 %14 = load %j 9.41/3.22 store %14, %i 9.41/3.22 %15 = load %t 9.41/3.22 store %15, %j 9.41/3.22 br %4 9.41/3.22 16: 9.41/3.22 ret 0 9.41/3.22 9.41/3.22 9.41/3.22 Analyze Termination of all function calls matching the pattern: 9.41/3.22 main() 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (3) LLVMToTerminationGraphProof (EQUIVALENT) 9.41/3.22 Constructed symbolic execution graph for LLVM program and proved memory safety. 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (4) 9.41/3.22 Obligation: 9.41/3.22 SE Graph 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (5) LLVMNonterminationProof (COMPLETE) 9.41/3.22 Proved nontermination with the following witness: 9.41/3.22 9.41/3.22 State #84 with references set to {}. 9.41/3.22 Nondeterministic instruction %1 = alloca i32, align 4 in node #84 yields value 9. 9.41/3.22 Nondeterministic instruction %i = alloca i32, align 4 in node #85 yields value 5. 9.41/3.22 Nondeterministic instruction %j = alloca i32, align 4 in node #86 yields value 13. 9.41/3.22 Nondeterministic instruction %t = alloca i32, align 4 in node #87 yields value 1. 9.41/3.22 Nondeterministic instruction %2 = call i32 @__VERIFIER_nondet_int() in node #89 yields value (-8). 9.41/3.22 Nondeterministic instruction %3 = call i32 @__VERIFIER_nondet_int() in node #91 yields value (-8). 9.41/3.22 9.41/3.22 ---------------------------------------- 9.41/3.22 9.41/3.22 (6) 9.41/3.22 NO 9.41/3.28 EOF