NO Solver Timeout: 4 Global Timeout: 300 No parsing errors! Init Location: 0 Transitions: 0, n^0 -> (1 + n^0)}> 1, o^0 -> (0 + n^0)}> 0}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: 1}> 0, n^0 -> (1 + n^0)}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: 0, n^0 -> 1 + n^0, rest remain the same}> Variables: n^0 Graph 2: Transitions: Variables: Graph 3: Transitions: Variables: Precedence: Graph 0 Graph 1 Graph 2 1, rest remain the same}> Graph 3 Map Locations to Subgraph: ( 0 , 0 ) ( 2 , 1 ) ( 3 , 2 ) ( 5 , 3 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.001278 Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000457s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000833s Trying to remove transition: 0, n^0 -> 1 + n^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.002859s Time used: 0.00274 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001365s Time used: 4.00112 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.004954s Time used: 4.00059 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.008438s Time used: 1.00047 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003704s Time used: 0.00225 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.004433s Time used: 0.004432 LOG: SAT solveNonLinear - Elapsed time: 0.008138s Cost: 1; Total time: 0.006682 Quasi-ranking function: 50000 - n^0 New Graphs: Transitions: 0, n^0 -> 1 + n^0, rest remain the same}> Variables: n^0 Checking conditional termination of SCC {l2}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000201s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000567s Trying to remove transition: 0, n^0 -> 1 + n^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.001593s Time used: 0.001527 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001841s Time used: 4.00172 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.005059s Time used: 4.00081 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.008860s Time used: 1.00043 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003862s Time used: 0.002103 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: 0.000422s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000452s Cannot prove unreachability Proving non-termination of subgraph 1 Transitions: 0, n^0 -> 1 + n^0, rest remain the same}> Variables: n^0 Checking conditional non-termination of SCC {l2}... > No exit transition to close. Calling reachability with... Transition: Conditions: OPEN EXITS: --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: Conditions: OPEN EXITS: > Conditions are reachable! Program does NOT terminate