10.44/3.77 NO 10.44/3.78 proof of /export/starexec/sandbox2/benchmark/theBenchmark.c 10.44/3.78 # AProVE Commit ID: 48fb2092695e11cc9f56e44b17a92a5f88ffb256 marcel 20180622 unpublished dirty 10.44/3.78 10.44/3.78 10.44/3.78 Termination of the given C Problem could be disproven: 10.44/3.78 10.44/3.78 (0) C Problem 10.44/3.78 (1) CToLLVMProof [EQUIVALENT, 175 ms] 10.44/3.78 (2) LLVM problem 10.44/3.78 (3) LLVMToTerminationGraphProof [EQUIVALENT, 295 ms] 10.44/3.78 (4) LLVM Symbolic Execution Graph 10.44/3.78 (5) SymbolicExecutionGraphToLassoProof [EQUIVALENT, 0 ms] 10.44/3.78 (6) LLVM Symbolic Execution Lasso 10.44/3.78 (7) Lasso2IRS [EQUIVALENT, 36 ms] 10.44/3.78 (8) IntTRS 10.44/3.78 (9) IRS2T2 [EQUIVALENT, 0 ms] 10.44/3.78 (10) T2IntSys 10.44/3.78 (11) T2 [COMPLETE, 1216 ms] 10.44/3.78 (12) NO 10.44/3.78 10.44/3.78 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (0) 10.44/3.78 Obligation: 10.44/3.78 c file /export/starexec/sandbox2/benchmark/theBenchmark.c 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (1) CToLLVMProof (EQUIVALENT) 10.44/3.78 Compiled c-file /export/starexec/sandbox2/benchmark/theBenchmark.c to LLVM. 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (2) 10.44/3.78 Obligation: 10.44/3.78 LLVM Problem 10.44/3.78 10.44/3.78 Aliases: 10.44/3.78 10.44/3.78 Data layout: 10.44/3.78 10.44/3.78 "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" 10.44/3.78 10.44/3.78 Machine: 10.44/3.78 10.44/3.78 "x86_64-pc-linux-gnu" 10.44/3.78 10.44/3.78 Type definitions: 10.44/3.78 10.44/3.78 Global variables: 10.44/3.78 10.44/3.78 Function declarations and definitions: 10.44/3.78 10.44/3.78 *BasicFunctionTypename: "__VERIFIER_nondet_int" returnParam: i32 parameters: () variableLength: true visibilityType: DEFAULT callingConvention: ccc 10.44/3.78 *BasicFunctionTypename: "main" linkageType: EXTERNALLY_VISIBLE returnParam: i32 parameters: () variableLength: false visibilityType: DEFAULT callingConvention: ccc 10.44/3.78 0: 10.44/3.78 %1 = alloca i32, align 4 10.44/3.78 %x = alloca i32, align 4 10.44/3.78 store 0, %1 10.44/3.78 %2 = call i32 (...)* @__VERIFIER_nondet_int() 10.44/3.78 store %2, %x 10.44/3.78 br %3 10.44/3.78 3: 10.44/3.78 %4 = load %x 10.44/3.78 %5 = icmp sge %4 0 10.44/3.78 br %5, %6, %10 10.44/3.78 6: 10.44/3.78 %7 = call i32 (...)* @__VERIFIER_nondet_int() 10.44/3.78 %8 = load %x 10.44/3.78 %9 = add %8 %7 10.44/3.78 store %9, %x 10.44/3.78 br %3 10.44/3.78 10: 10.44/3.78 ret 0 10.44/3.78 10.44/3.78 10.44/3.78 Analyze Termination of all function calls matching the pattern: 10.44/3.78 main() 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (3) LLVMToTerminationGraphProof (EQUIVALENT) 10.44/3.78 Constructed symbolic execution graph for LLVM program and proved memory safety. 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (4) 10.44/3.78 Obligation: 10.44/3.78 SE Graph 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (5) SymbolicExecutionGraphToLassoProof (EQUIVALENT) 10.44/3.78 Converted SEGraph to 1 independent lasso. 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (6) 10.44/3.78 Obligation: 10.44/3.78 Lasso 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (7) Lasso2IRS (EQUIVALENT) 10.44/3.78 Transformed LLVM symbolic execution graph SCC into a rewrite problem. Log: 10.44/3.78 Generated rules. Obtained 26 rulesP rules: 10.44/3.78 f_80(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) -> f_81(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) :|: 0 <= v19 10.44/3.78 f_81(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) -> f_83(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) :|: 0 = 0 10.44/3.78 f_83(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) -> f_85(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) :|: TRUE 10.44/3.78 f_85(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) -> f_87(v13, v14, v15, v19, 1, v23, v16, v20, v21, 0, 3, 4) :|: TRUE 10.44/3.78 f_87(v13, v14, v15, v19, 1, v23, v16, v20, v21, 0, 3, 4) -> f_88(v13, v14, v15, v19, 1, v23, v20, v21, 0, 3, 4) :|: 0 = 0 10.44/3.78 f_88(v13, v14, v15, v19, 1, v23, v20, v21, 0, 3, 4) -> f_89(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) :|: v24 = v19 + v23 10.44/3.78 f_89(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) -> f_90(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) :|: TRUE 10.44/3.78 f_90(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) -> f_91(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) :|: TRUE 10.44/3.78 f_91(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) -> f_79(v13, v14, v15, v19, 1, v23, v24, v20, v21, 0, 3, 4) :|: TRUE 10.44/3.78 f_79(v13, v14, v15, v16, 1, v18, v19, v20, v21, 0, 3, 4) -> f_80(v13, v14, v15, v19, 1, v18, v16, v20, v21, 0, 3, 4) :|: 0 = 0 10.44/3.78 f_48 -> f_49(v1, v2, 3, 1, 4) :|: 1 <= v1 && v2 = 3 + v1 && 4 <= v2 10.44/3.78 f_49(v1, v2, 3, 1, 4) -> f_50(v1, v3, v2, v4, 3, 1, 4) :|: 1 <= v3 && v4 = 3 + v3 && 4 <= v4 10.44/3.78 f_50(v1, v3, v2, v4, 3, 1, 4) -> f_51(v1, v3, v2, v4, 0, 3, 1, 4) :|: TRUE 10.44/3.78 f_51(v1, v3, v2, v4, 0, 3, 1, 4) -> f_52(v1, v3, v5, v2, v4, 0, 3, 1, 4) :|: TRUE 10.44/3.78 f_52(v1, v3, v5, v2, v4, 0, 3, 1, 4) -> f_53(v1, v3, v5, v2, v4, 0, 3, 1, 4) :|: TRUE 10.44/3.78 f_53(v1, v3, v5, v2, v4, 0, 3, 1, 4) -> f_54(v1, v3, v5, v2, v4, 0, 3, 1, 4) :|: TRUE 10.44/3.78 f_54(v1, v3, v5, v2, v4, 0, 3, 1, 4) -> f_55(v1, v3, v5, v2, v4, 0, 3, 1, 4) :|: 0 = 0 10.44/3.78 f_55(v1, v3, v5, v2, v4, 0, 3, 1, 4) -> f_56(v1, v3, v5, v2, v4, 0, 3, 1, 4) :|: 0 <= v5 10.44/3.78 f_56(v1, v3, v5, v2, v4, 0, 3, 1, 4) -> f_58(v1, v3, v5, 1, v2, v4, 0, 3, 4) :|: 0 = 0 10.44/3.78 f_58(v1, v3, v5, 1, v2, v4, 0, 3, 4) -> f_60(v1, v3, v5, 1, v2, v4, 0, 3, 4) :|: TRUE 10.44/3.78 f_60(v1, v3, v5, 1, v2, v4, 0, 3, 4) -> f_62(v1, v3, v5, 1, v7, v2, v4, 0, 3, 4) :|: TRUE 10.44/3.78 f_62(v1, v3, v5, 1, v7, v2, v4, 0, 3, 4) -> f_63(v1, v3, v5, 1, v7, v2, v4, 0, 3, 4) :|: 0 = 0 10.44/3.78 f_63(v1, v3, v5, 1, v7, v2, v4, 0, 3, 4) -> f_64(v1, v3, v5, 1, v7, v8, v2, v4, 0, 3, 4) :|: v8 = v5 + v7 10.44/3.78 f_64(v1, v3, v5, 1, v7, v8, v2, v4, 0, 3, 4) -> f_65(v1, v3, v5, 1, v7, v8, v2, v4, 0, 3, 4) :|: TRUE 10.44/3.78 f_65(v1, v3, v5, 1, v7, v8, v2, v4, 0, 3, 4) -> f_66(v1, v3, v5, 1, v7, v8, v2, v4, 0, 3, 4) :|: TRUE 10.44/3.78 f_66(v1, v3, v5, 1, v7, v8, v2, v4, 0, 3, 4) -> f_79(v1, v3, v5, v5, 1, v7, v8, v2, v4, 0, 3, 4) :|: TRUE 10.44/3.78 Combined rules. Obtained 2 rulesP rules: 10.44/3.78 f_80(v13:0, v14:0, v15:0, v19:0, 1, v18:0, v16:0, v20:0, v21:0, 0, 3, 4) -> f_80(v13:0, v14:0, v15:0, v19:0 + v23:0, 1, v23:0, v19:0, v20:0, v21:0, 0, 3, 4) :|: v19:0 > -1 10.44/3.78 f_48 -> f_80(v1:0, v3:0, v5:0, v5:0 + v7:0, 1, v7:0, v5:0, 3 + v1:0, 3 + v3:0, 0, 3, 4) :|: v3:0 > 0 && v1:0 > 0 && v5:0 > -1 10.44/3.78 Filtered unneeded arguments: 10.44/3.78 f_80(x1, x2, x3, x4, x5, x6, x7, x8, x9, x10, x11, x12) -> f_80(x4) 10.44/3.78 Removed division, modulo operations, cleaned up constraints. Obtained 2 rules.P rules: 10.44/3.78 f_80(v19:0) -> f_80(v19:0 + v23:0) :|: v19:0 > -1 10.44/3.78 f_48 -> f_80(v5:0 + v7:0) :|: v5:0 > -1 10.44/3.78 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (8) 10.44/3.78 Obligation: 10.44/3.78 Rules: 10.44/3.78 f_80(v19:0) -> f_80(v19:0 + v23:0) :|: v19:0 > -1 10.44/3.78 f_48 -> f_80(v5:0 + v7:0) :|: v5:0 > -1 10.44/3.78 Start term: f_48 10.44/3.78 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (9) IRS2T2 (EQUIVALENT) 10.44/3.78 Transformed input IRS into an integer transition system.Used the following mapping from defined symbols to location IDs: 10.44/3.78 10.44/3.78 (f_80_1,1) 10.44/3.78 (f_48_1,2) 10.44/3.78 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (10) 10.44/3.78 Obligation: 10.44/3.78 START: 2; 10.44/3.78 10.44/3.78 FROM: 1; 10.44/3.78 oldX0 := x0; 10.44/3.78 oldX1 := nondet(); 10.44/3.78 assume(oldX0 > -1); 10.44/3.78 x0 := oldX0 + oldX1; 10.44/3.78 TO: 1; 10.44/3.78 10.44/3.78 FROM: 2; 10.44/3.78 oldX0 := x0; 10.44/3.78 oldX1 := nondet(); 10.44/3.78 oldX2 := nondet(); 10.44/3.78 assume(oldX1 > -1); 10.44/3.78 x0 := oldX1 + oldX2; 10.44/3.78 TO: 1; 10.44/3.78 10.44/3.78 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (11) T2 (COMPLETE) 10.44/3.78 Found this recurrent set for cutpoint 5: oldX1 == 0 and oldX2 == 0 and x0 == 0 10.44/3.78 10.44/3.78 ---------------------------------------- 10.44/3.78 10.44/3.78 (12) 10.44/3.78 NO 10.44/3.81 EOF