/export/starexec/sandbox2/solver/bin/starexec_run_termcomp17 /export/starexec/sandbox2/benchmark/theBenchmark.smt2 /export/starexec/sandbox2/output/output_files -------------------------------------------------------------------------------- NO Solver Timeout: 4 Global Timeout: 300 Maximum number of concurrent processes: 900 No parsing errors! Init Location: 0 Transitions: 0) /\ (arg2 > ~(1)), par{arg1 -> arg2, arg3 -> arg2, arg4 -> undef4}> = arg2) /\ (arg1 > 1) /\ (arg2 > 4) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 - 1), arg3 -> (arg1 - 1), arg4 -> undef8}> 1) /\ ((arg1 + 1) >= (2 * arg2)) /\ (arg1 > 0) /\ (arg1 = arg3), par{arg3 -> (arg1 + 1), arg4 -> (arg2 + 1)}> 1) /\ ((arg1 + 1) < (2 * arg2)) /\ (arg1 > 0) /\ (arg1 = arg3), par{arg3 -> (arg1 + 1), arg4 -> (arg2 - 1)}> 0) /\ (arg2 > 1) /\ (arg3 > 1) /\ (arg4 > 0) /\ (arg2 > arg1) /\ (arg2 >= arg3) /\ (arg1 <= arg4), par{arg1 -> arg3, arg2 -> arg4, arg4 -> undef20}> 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) <= 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 + 2), arg3 -> (arg1 - 1), arg4 -> undef24}> 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) > 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg2 -> (arg2 + 1), arg3 -> arg1, arg4 -> undef28}> undef29, arg2 -> undef30, arg3 -> undef31, arg4 -> undef32}> Fresh variables: undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, Undef variables: undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: 0) /\ (undef30 > ~(1))> = arg2) /\ (arg1 > 1) /\ (arg2 > 4) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 - 1), arg3 -> (arg1 - 1)}> 1) /\ ((arg1 + 1) < (2 * arg2)) /\ (arg1 > 0) /\ (arg1 = arg3) /\ (arg1 > 0) /\ (arg2 > 1) /\ ((arg1 + 1) > 1) /\ ((arg2 - 1) > 0) /\ (arg2 > arg1) /\ (arg2 >= (arg1 + 1)) /\ (arg1 <= (arg2 - 1)), par{arg1 -> (arg1 + 1), arg2 -> (arg2 - 1), arg3 -> (arg1 + 1)}> 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) <= 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg1 -> (arg1 - 1), arg2 -> (arg2 + 2), arg3 -> (arg1 - 1)}> 0) /\ (arg1 >= arg2) /\ (arg2 < 5) /\ (((arg1 - 1) - (arg2 + 1)) > 2) /\ (arg2 > ~(1)) /\ (arg1 = arg3), par{arg2 -> (arg2 + 1), arg3 -> arg1}> Fresh variables: undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, Undef variables: undef4, undef8, undef20, undef24, undef28, undef29, undef30, undef31, undef32, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}> 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}> -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}> 1 + arg2, arg3 -> arg1, rest remain the same}> Variables: arg1, arg2, arg3 Precedence: Graph 0 Graph 1 Map Locations to Subgraph: ( 0 , 0 ) ( 2 , 1 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.022044 Some transition disabled by a set of invariant(s): Invariant at l2: arg3 <= 1 + arg2 Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + arg2, arg3 -> arg1, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + arg1, arg2 -> -1 + arg2, arg3 -> -1 + arg1, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + arg1, arg2 -> -1 + arg2, arg3 -> 1 + arg1, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): -1 + arg1, arg2 -> 2 + arg2, arg3 -> -1 + arg1, rest remain the same}> Checking unfeasibility... Time used: 0.103614 Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.002760s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.389912s [5309 : 5310] [5309 : 5311] Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.102238s Time used: 4.10006 Termination failed. Trying to show unreachability... Proving unreachability of entry: LOG: CALL check - Post:1 <= 0 - Process 1 * Exit transition: * Postcondition : 1 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.021425s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.021581s Cannot prove unreachability [5309 : 5337] [5309 : 5341] Successful child: 5341 Program does NOT terminate