/export/starexec/sandbox2/solver/bin/starexec_run_c /export/starexec/sandbox2/benchmark/theBenchmark.c /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- YES proof of /export/starexec/sandbox2/benchmark/theBenchmark.c # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty Termination of the given C Problem could be proven: (0) C Problem (1) CToLLVMProof [EQUIVALENT, 178 ms] (2) LLVM problem (3) LLVMToTerminationGraphProof [EQUIVALENT, 1796 ms] (4) LLVM Symbolic Execution Graph (5) SymbolicExecutionGraphToSCCProof [SOUND, 0 ms] (6) LLVM Symbolic Execution SCC (7) SCC2IRS [SOUND, 33 ms] (8) IntTRS (9) IntTRSCompressionProof [EQUIVALENT, 0 ms] (10) IntTRS (11) PolynomialOrderProcessor [EQUIVALENT, 0 ms] (12) YES ---------------------------------------- (0) Obligation: c file /export/starexec/sandbox2/benchmark/theBenchmark.c ---------------------------------------- (1) CToLLVMProof (EQUIVALENT) Compiled c-file /export/starexec/sandbox2/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_error" returnParam: BasicVoidType parameters: () variableLength: true visibilityType: DEFAULT callingConvention: ccc *BasicFunctionTypename: "id" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: (x i32) variableLength: false visibilityType: DEFAULT callingConvention: ccc 0: %1 = alloca i32, align 4 %2 = alloca i32, align 4 store %x, %2 %3 = load %2 %4 = icmp eq %3 0 br %4, %5, %6 5: store 0, %1 br %11 6: %7 = load %2 %8 = sub %7 1 %9 = call i32 @id(i32 %8) %10 = add %9 1 store %10, %1 br %11 11: %12 = load %1 ret %12 *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 0: %1 = alloca i32, align 4 %input = alloca i32, align 4 %result = alloca i32, align 4 store 0, %1 store 10, %input %2 = load %input %3 = call i32 @id(i32 %2) store %3, %result %4 = load %result %5 = icmp eq %4 10 br %5, %6, %8 6: br %7 7: Unnamed Call-Instruction = call BasicVoidType (...)* @__VERIFIER_error() br %8 8: %9 = load %1 ret %9 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) SymbolicExecutionGraphToSCCProof (SOUND) Splitted symbolic execution graph to 1 SCC. ---------------------------------------- (6) Obligation: SCC ---------------------------------------- (7) SCC2IRS (SOUND) Transformed LLVM symbolic execution graph SCC into a rewrite problem. Log: Generated rules. Obtained 12 rulesP rules: f_153(v56, v65, v57, v58, v59, v60, v61, v62, v66, 0, 10, 3, 1, 4) -> f_154(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) :|: 1 <= v67 && v68 = 3 + v67 && 4 <= v68 f_154(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) -> f_155(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) :|: TRUE f_155(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) -> f_156(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) :|: 0 = 0 f_156(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) -> f_158(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) :|: v56 != 0 f_158(v56, v65, v67, v57, v58, v59, v60, v61, v62, v66, v68, 0, 10, 3, 1, 4) -> f_160(v56, v65, v67, 0, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4) :|: 0 = 0 f_160(v56, v65, v67, 0, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4) -> f_162(v56, v65, v67, 0, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4) :|: TRUE f_162(v56, v65, v67, 0, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4) -> f_164(v56, v65, v67, 0, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4) :|: 0 = 0 f_164(v56, v65, v67, 0, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4) -> f_166(v56, v65, v67, 0, v70, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4, 9) :|: 1 + v70 = v56 && 0 <= v70 && v70 <= 9 f_166(v56, v65, v67, 0, v70, v57, v58, v59, v60, v61, v62, v66, v68, 10, 3, 1, 4, 9) -> f_168(v70, v57, v58, v59, v60, v61, v62, v65, v66, v67, v68, 0, 10, v56, 3, 1, 4, 9) :|: 0 = 0 f_168(v70, v57, v58, v59, v60, v61, v62, v65, v66, v67, v68, 0, 10, v56, 3, 1, 4, 9) -> f_170(v70, v57, v58, v59, v60, v61, v62, v65, v66, v67, v68, 0, 10, v56, 3, 1, 4, 9) :|: TRUE f_170(v70, v57, v58, v59, v60, v61, v62, v65, v66, v67, v68, 0, 10, v56, 3, 1, 4, 9) -> f_152(v70, v57, v58, v59, v60, v61, v62, 0, 10, 3, 1, 4) :|: TRUE f_152(v56, v57, v58, v59, v60, v61, v62, 0, 10, 3, 1, 4) -> f_153(v56, v65, v57, v58, v59, v60, v61, v62, v66, 0, 10, 3, 1, 4) :|: 1 <= v65 && v66 = 3 + v65 && 4 <= v66 Combined rules. Obtained 1 rulesP rules: f_153(1 + v70:0, v65:0, v57:0, v58:0, v59:0, v60:0, v61:0, v62:0, v66:0, 0, 10, 3, 1, 4) -> f_153(v70:0, v65:1, v57:0, v58:0, v59:0, v60:0, v61:0, v62:0, 3 + v65:1, 0, 10, 3, 1, 4) :|: v67:0 > 0 && v70:0 > -1 && v70:0 < 10 && v65:1 > 0 Filtered unneeded arguments: f_153(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12, x13, x14) -> f_153(x1) Removed division, modulo operations, cleaned up constraints. Obtained 1 rules.P rules: f_153(sum~cons_1~v70:0) -> f_153(v70:0) :|: v70:0 > -1 && v70:0 < 10 && sum~cons_1~v70:0 = 1 + v70:0 ---------------------------------------- (8) Obligation: Rules: f_153(sum~cons_1~v70:0) -> f_153(v70:0) :|: v70:0 > -1 && v70:0 < 10 && sum~cons_1~v70:0 = 1 + v70:0 ---------------------------------------- (9) IntTRSCompressionProof (EQUIVALENT) Compressed rules. ---------------------------------------- (10) Obligation: Rules: f_153(sum~cons_1~v70:0:0) -> f_153(v70:0:0) :|: v70:0:0 > -1 && v70:0:0 < 10 && sum~cons_1~v70:0:0 = 1 + v70:0:0 ---------------------------------------- (11) PolynomialOrderProcessor (EQUIVALENT) Found the following polynomial interpretation: [f_153(x)] = x The following rules are decreasing: f_153(sum~cons_1~v70:0:0) -> f_153(v70:0:0) :|: v70:0:0 > -1 && v70:0:0 < 10 && sum~cons_1~v70:0:0 = 1 + v70:0:0 The following rules are bounded: f_153(sum~cons_1~v70:0:0) -> f_153(v70:0:0) :|: v70:0:0 > -1 && v70:0:0 < 10 && sum~cons_1~v70:0:0 = 1 + v70:0:0 ---------------------------------------- (12) YES