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C_Integer 2019-03-28 22.15 pair #432272167
details
property
value
status
complete
benchmark
LeikeHeizmann-WST2014-Ex6_false-termination.c
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n164.star.cs.uiowa.edu
space
Stroeder_15
run statistics
property
value
solver
AProVE
configuration
c
runtime (wallclock)
3.40305 seconds
cpu usage
10.24
user time
9.77155
system time
0.468408
max virtual memory
2.0445476E7
max residence set size
722560.0
stage attributes
key
value
starexec-result
NO
output
9.82/3.26 NO 9.82/3.27 proof of /export/starexec/sandbox/benchmark/theBenchmark.c 9.82/3.27 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 9.82/3.27 9.82/3.27 9.82/3.27 Termination of the given C Problem could be disproven: 9.82/3.27 9.82/3.27 (0) C Problem 9.82/3.27 (1) CToLLVMProof [EQUIVALENT, 183 ms] 9.82/3.27 (2) LLVM problem 9.82/3.27 (3) LLVMToTerminationGraphProof [EQUIVALENT, 476 ms] 9.82/3.27 (4) LLVM Symbolic Execution Graph 9.82/3.27 (5) LLVMNonterminationProof [COMPLETE, 113 ms] 9.82/3.27 (6) NO 9.82/3.27 9.82/3.27 9.82/3.27 ---------------------------------------- 9.82/3.27 9.82/3.27 (0) 9.82/3.27 Obligation: 9.82/3.27 c file /export/starexec/sandbox/benchmark/theBenchmark.c 9.82/3.27 ---------------------------------------- 9.82/3.27 9.82/3.27 (1) CToLLVMProof (EQUIVALENT) 9.82/3.27 Compiled c-file /export/starexec/sandbox/benchmark/theBenchmark.c to LLVM. 9.82/3.27 ---------------------------------------- 9.82/3.27 9.82/3.27 (2) 9.82/3.27 Obligation: 9.82/3.27 LLVM Problem 9.82/3.27 9.82/3.27 Aliases: 9.82/3.27 9.82/3.27 Data layout: 9.82/3.27 9.82/3.27 "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" 9.82/3.27 9.82/3.27 Machine: 9.82/3.27 9.82/3.27 "x86_64-pc-linux-gnu" 9.82/3.27 9.82/3.27 Type definitions: 9.82/3.27 9.82/3.27 Global variables: 9.82/3.27 9.82/3.27 Function declarations and definitions: 9.82/3.27 9.82/3.27 *BasicFunctionTypename: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 9.82/3.27 *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 9.82/3.27 0: 9.82/3.27 %1 = alloca i32, align 4 9.82/3.27 %a = alloca i32, align 4 9.82/3.27 %b = alloca i32, align 4 9.82/3.27 store 0, %1 9.82/3.27 %2 = call i32 @__VERIFIER_nondet_int() 9.82/3.27 store %2, %a 9.82/3.27 %3 = call i32 @__VERIFIER_nondet_int() 9.82/3.27 store %3, %b 9.82/3.27 br %4 9.82/3.27 4: 9.82/3.27 %5 = load %a 9.82/3.27 %6 = icmp sge %5 1 9.82/3.27 br %6, %7, %10 9.82/3.27 7: 9.82/3.27 %8 = load %b 9.82/3.27 %9 = icmp sge %8 1 9.82/3.27 br %10 9.82/3.27 10: 9.82/3.27 %11 = phi [0, %4], [%9, %7] 9.82/3.27 br %11, %12, %17 9.82/3.27 12: 9.82/3.27 %13 = load %a 9.82/3.27 %14 = mul 2 %13 9.82/3.27 store %14, %a 9.82/3.27 %15 = load %b 9.82/3.27 %16 = mul 3 %15 9.82/3.27 store %16, %b 9.82/3.27 br %4 9.82/3.27 17: 9.82/3.27 ret 0 9.82/3.27 9.82/3.27 9.82/3.27 Analyze Termination of all function calls matching the pattern: 9.82/3.27 main() 9.82/3.27 ---------------------------------------- 9.82/3.27 9.82/3.27 (3) LLVMToTerminationGraphProof (EQUIVALENT) 9.82/3.27 Constructed symbolic execution graph for LLVM program and proved memory safety. 9.82/3.27 ---------------------------------------- 9.82/3.27 9.82/3.27 (4) 9.82/3.27 Obligation: 9.82/3.27 SE Graph 9.82/3.27 ---------------------------------------- 9.82/3.27 9.82/3.27 (5) LLVMNonterminationProof (COMPLETE) 9.82/3.27 Proved nontermination with the following witness: 9.82/3.27 9.82/3.27 State #78 with references set to {}. 9.82/3.27 Nondeterministic instruction %1 = alloca i32, align 4 in node #78 yields value 9.
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