NO Solver Timeout: 4 Global Timeout: 60 No parsing errors! Init Location: 0 Transitions: (~(1) + curr_serv^0)}> (~(1) + c^0), curr_serv^0 -> (~(1) + curr_serv^0), resp^0 -> (1 + resp^0)}> undef37}> undef62, c^0 -> undef63, curr_serv^0 -> (0 + undef66), resp^0 -> 0, servers^0 -> undef66}> Fresh variables: undef37, undef62, undef63, undef66, Undef variables: undef37, undef62, undef63, undef66, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: (~(1) + curr_serv^0)}> (~(1) + c^0), curr_serv^0 -> (~(1) + curr_serv^0), resp^0 -> (1 + resp^0)}> Fresh variables: undef37, undef62, undef63, undef66, Undef variables: undef37, undef62, undef63, undef66, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: -1 + curr_serv^0, rest remain the same}> -1 + c^0, curr_serv^0 -> -1 + curr_serv^0, resp^0 -> 1 + resp^0, rest remain the same}> Variables: c^0, curr_serv^0, resp^0 Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 Graph 2 Map Locations to Subgraph: ( 0 , 0 ) ( 1 , 1 ) ( 5 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.006117 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001367s Ranking function: -1 - c^0 + curr_serv^0 New Graphs: Transitions: -1 + c^0, curr_serv^0 -> -1 + curr_serv^0, resp^0 -> 1 + resp^0, rest remain the same}> Variables: c^0, curr_serv^0, resp^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000718s Ranking function: -1 + curr_serv^0 New Graphs: Proving termination of subgraph 2 Checking unfeasibility... Time used: 0.000955 > No variable changes in termination graph. Checking conditional unfeasibility... 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: 0.000688s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000806s Cannot prove unreachability Proving non-termination of subgraph 2 Transitions: Variables: Checking conditional non-termination of SCC {l5}... > No exit transition to close. Calling reachability with... Transition: Conditions: Transition: Conditions: OPEN EXITS: --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: Conditions: Transition: Conditions: OPEN EXITS: > Conditions are reachable! Program does NOT terminate