details

property	value
status	complete
benchmark	Ex01.c
ran by	Akihisa Yamada
cpu timeout	1200 seconds
wallclock timeout	300 seconds
memory limit	137438953472 bytes
execution host	n098.star.cs.uiowa.edu
space	Stroeder_15

run statistics

property	value
solver	AProVE
configuration	c
runtime (wallclock)	2.66830301285 seconds
cpu usage	7.497076476
max memory	5.16743168E8

stage attributes

key	value
output-size	2640
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# AProVE Commit ID: 794c25de1cacf0d048858bcd21c9a779e1221865 marcel 20200619 unpublished dirty Termination of the given C Problem could be disproven: (0) C Problem (1) CToLLVMProof [EQUIVALENT, 158 ms] (2) LLVM problem (3) LLVMToTerminationGraphProof [EQUIVALENT, 373 ms] (4) LLVM Symbolic Execution Graph (5) LLVMNonterminationProof [COMPLETE, 69 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: false visibilityType: DEFAULT callingConvention: ccc *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 0: %1 = alloca i32, align 4 %i = alloca i32, align 4 store 0, %1 %2 = call i32 @__VERIFIER_nondet_int() store %2, %i br %3 3: %4 = load %i %5 = icmp slt %4 0 br %5, %6, %9 6: %7 = load %i %8 = sub %7 1 store %8, %i br %3 9: ret 0 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 #45 with references set to {}. Nondeterministic instruction %1 = alloca i32, align 4 in node #45 yields value 1. Nondeterministic instruction %i = alloca i32, align 4 in node #46 yields value 8. Nondeterministic instruction %2 = call i32 @__VERIFIER_nondet_int() in node #48 yields value (-16). ---------------------------------------- (6) NO popout

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all output return to C Integer