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C 88007 pair #381735144
details
property
value
status
complete
benchmark
Rotation180_false-termination.c
ran by
Akihisa Yamada
cpu timeout
1200 seconds
wallclock timeout
300 seconds
memory limit
137438953472 bytes
execution host
n099.star.cs.uiowa.edu
space
Ultimate
run statistics
property
value
solver
AProVE
configuration
c
runtime (wallclock)
2.83507800102 seconds
cpu usage
9.626469439
max memory
4.1314304E8
stage attributes
key
value
output-size
3072
starexec-result
NO
output
/export/starexec/sandbox/solver/bin/starexec_run_c /export/starexec/sandbox/benchmark/theBenchmark.c /export/starexec/sandbox/output/output_files -------------------------------------------------------------------------------- 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# AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given C Problem could be disproven: (0) C Problem (1) CToLLVMProof [EQUIVALENT, 128 ms] (2) LLVM problem (3) LLVMToTerminationGraphProof [EQUIVALENT, 449 ms] (4) LLVM Symbolic Execution Graph (5) LLVMNonterminationProof [COMPLETE, 53 ms] (6) NO ---------------------------------------- (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: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: true visibilityType: DEFAULT callingConvention: ccc *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 0: %1 = alloca i32, align 4 %x = alloca i32, align 4 %y = alloca i32, align 4 %old_x = alloca i32, align 4 store 0, %1 %2 = call i32 (...)* @__VERIFIER_nondet_int() store %2, %x %3 = call i32 (...)* @__VERIFIER_nondet_int() store %3, %y br %4 4: %5 = load %x store %5, %old_x %6 = load %y %7 = sub 0 %6 store %7, %x %8 = load %old_x store %8, %y br %4 9: %10 = load %1 ret %10 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 #63 with references set to {}. Nondeterministic instruction %1 = alloca i32, align 4 in node #63 yields value 9. Nondeterministic instruction %x = alloca i32, align 4 in node #64 yields value 5. Nondeterministic instruction %y = alloca i32, align 4 in node #65 yields value 16.
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