NO Solver Timeout: 4 Global Timeout: 300 No parsing errors! Init Location: 0 Transitions: (~(1) + x^0)}> undef3}> Fresh variables: undef3, Undef variables: undef3, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: (~(1) + x^0)}> undef3}> Fresh variables: undef3, Undef variables: undef3, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: -1 + x^0, rest remain the same}> undef3, rest remain the same}> Variables: x^0 Precedence: Graph 0 Graph 1 Map Locations to Subgraph: ( 0 , 0 ) ( 1 , 1 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.002132 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000904s Ranking function: -1 + x^0 New Graphs: Transitions: -1 + x^0, rest remain the same}> Variables: x^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000408s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000846s Trying to remove transition: -1 + x^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.002168s Time used: 0.002043 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.003365s Time used: 4.00317 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.009955s Time used: 4.00103 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.003082s Time used: 1.00053 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005791s Time used: 0.002877 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.004268s Time used: 0.004266 LOG: SAT solveNonLinear - Elapsed time: 0.010059s Cost: 1; Total time: 0.007143 Quasi-ranking function: 50000 + x^0 New Graphs: Transitions: -1 + x^0, rest remain the same}> Variables: x^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000203s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000580s Trying to remove transition: -1 + x^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.001690s Time used: 0.001625 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.002560s Time used: 4.00242 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.005728s Time used: 4.00095 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.013180s Time used: 1.00056 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005333s Time used: 0.002536 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: 0.000442s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000467s Cannot prove unreachability Proving non-termination of subgraph 1 Transitions: -1 + x^0, rest remain the same}> undef3, rest remain the same}> Variables: x^0 Checking conditional non-termination of SCC {l1}... > No exit transition to close. Checking that every undef value has an assignment... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000301s > No assignment for some undef value. Proving non-termination of subgraph 1 Transitions: -1 + x^0, rest remain the same}> Variables: x^0 Checking conditional non-termination of SCC {l1}... EXIT TRANSITIONS: Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.060200s Time used: 5.06008 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.035608s Time used: 5.00475 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.017488s Time used: 5.00365 > Checking if the negation of the conditions of every pending exit is quasi-invariant... YES Calling reachability with... Transition: Conditions: 50001 + x^0 <= 0, OPEN EXITS: --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: Conditions: 50001 + x^0 <= 0, OPEN EXITS: > Conditions are reachable! Program does NOT terminate