NO Solver Timeout: 4 Global Timeout: 60 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: 0.002392 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000939s 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: 0.000431s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000872s Trying to remove transition: -1 + x^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003136s Time used: 0.003024 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001093s Time used: 4.00106 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.006793s Time used: 4.00088 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.018791s Time used: 1.01279 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010258s Time used: 0.006268 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.008937s Time used: 0.008932 LOG: SAT solveNonLinear - Elapsed time: 0.019194s Cost: 1; Total time: 0.0152 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: 0.000405s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001211s Trying to remove transition: -1 + x^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.003562s Time used: 0.003435 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.003174s Time used: 4.00312 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.006698s Time used: 4.00084 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.013986s Time used: 1.00783 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.009510s Time used: 0.004934 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: 0.000837s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000899s 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: 0.000769s > 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: 5.219402s Time used: 5.21947 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.114924s Time used: 5.09047 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.010993s Time used: 5.00252 > 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