NO Solver Timeout: 4 Global Timeout: 60 No parsing errors! Init Location: 0 Transitions: (0 + i^0)}> (1 + i^0)}> undef19}> 0}> Fresh variables: undef19, Undef variables: undef19, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: (1 + i^0)}> (1 + i^0)}> (1 + undef19)}> Fresh variables: undef19, Undef variables: undef19, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: 1 + i^0, rest remain the same}> 1 + i^0, rest remain the same}> 1 + undef19, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 Graph 2 Map Locations to Subgraph: ( 0 , 0 ) ( 3 , 1 ) ( 6 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.007238 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001474s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.009044s Piecewise ranking function: min(-5 + 6*__const_10^0 - 2*__const_5^0 - 4*i^0,-5 + 6*__const_10^0 - 6*__const_5^0) New Graphs: Transitions: 1 + i^0, rest remain the same}> 1 + undef19, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000930s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004465s Trying to remove transition: 1 + undef19, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.009415s Time used: 0.009143 Trying to remove transition: 1 + i^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.009358s Time used: 0.008706 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.020542s Time used: 0.019806 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.043597s Time used: 0.043595 LOG: SAT solveNonLinear - Elapsed time: 0.064139s Cost: 1; Total time: 0.063401 Failed at location 3: 1 + __const_5^0 <= i^0 Before Improving: Quasi-invariant at l3: 1 + __const_5^0 <= i^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.007173s Remaining time after improvement: 0.997884 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l3: 1 + __const_5^0 <= i^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + undef19, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + undef19, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + i^0, rest remain the same}> New Graphs: Calling Safety with literal 1 + __const_5^0 <= i^0 and entry LOG: CALL check - Post:1 + __const_5^0 <= i^0 - Process 1 * Exit transition: * Postcondition : 1 + __const_5^0 <= i^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000470s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000552s INVARIANTS: 3: Quasi-INVARIANTS to narrow Graph: 3: 1 + __const_5^0 <= i^0 , It's unfeasible. Removing transition: 1 + i^0, rest remain the same}> Narrowing transition: 1 + i^0, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: 1 + undef19, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: 1 + i^0, rest remain the same}> 1 + undef19, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000979s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004541s Trying to remove transition: 1 + undef19, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008598s Time used: 0.008326 Trying to remove transition: 1 + i^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.009562s Time used: 0.008864 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.018358s Time used: 0.017514 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.030795s Time used: 0.030791 LOG: SAT solveNonLinear - Elapsed time: 0.049154s Cost: 1; Total time: 0.048305 Failed at location 3: __const_10^0 <= i^0 Before Improving: Quasi-invariant at l3: __const_10^0 <= i^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.006084s Remaining time after improvement: 0.998041 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l3: __const_10^0 <= i^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + undef19, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + undef19, rest remain the same}> New Graphs: Calling Safety with literal __const_10^0 <= i^0 and entry LOG: CALL check - Post:__const_10^0 <= i^0 - Process 2 * Exit transition: * Postcondition : __const_10^0 <= i^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000674s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000761s INVARIANTS: 3: Quasi-INVARIANTS to narrow Graph: 3: __const_10^0 <= i^0 , Narrowing transition: 1 + i^0, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: 1 + undef19, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: 1 + i^0, rest remain the same}> 1 + undef19, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001016s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004570s Trying to remove transition: 1 + undef19, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008647s Time used: 0.008443 Trying to remove transition: 1 + i^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.009507s Time used: 0.008785 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.020184s Time used: 0.019295 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.041258s Time used: 0.041256 LOG: SAT solveNonLinear - Elapsed time: 0.061442s Cost: 1; Total time: 0.060551 Failed at location 3: __const_10^0 <= __const_5^0 Before Improving: Quasi-invariant at l3: __const_10^0 <= __const_5^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.006242s Remaining time after improvement: 0.997963 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l3: __const_10^0 <= __const_5^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + undef19, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility It's unfeasible. Removing transition: 1 + undef19, rest remain the same}> New Graphs: Transitions: 1 + i^0, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001001s Ranking function: -1 + __const_10^0 - i^0 New Graphs: Calling Safety with literal __const_10^0 <= __const_5^0 and entry LOG: CALL check - Post:__const_10^0 <= __const_5^0 - Process 3 * Exit transition: * Postcondition : __const_10^0 <= __const_5^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000619s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000716s INVARIANTS: 3: Quasi-INVARIANTS to narrow Graph: 3: __const_10^0 <= __const_5^0 , Narrowing transition: 1 + i^0, rest remain the same}> LOG: Narrow transition size 1 Narrowing transition: 1 + undef19, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: 1 + i^0, rest remain the same}> 1 + undef19, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Checking conditional termination of SCC {l3}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001182s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.005153s Trying to remove transition: 1 + undef19, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.008823s Time used: 0.008572 Trying to remove transition: 1 + i^0, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011280s Time used: 0.010554 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001594s Time used: 4.00113 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.006080s Time used: 4.00093 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.009462s Time used: 1.00095 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.026658s Time used: 0.015772 Proving non-termination of subgraph 1 Transitions: 1 + i^0, rest remain the same}> 1 + undef19, rest remain the same}> Variables: __const_10^0, __const_5^0, i^0 Checking conditional non-termination of SCC {l3}... EXIT TRANSITIONS: Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.026121s Time used: 0.025846 Improving Solution with cost 3 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.033702s Time used: 0.033698 LOG: SAT solveNonLinear - Elapsed time: 0.059823s Cost: 3; Total time: 0.059544 Failed at location 3: 1 + __const_5^0 <= __const_10^0 Before Improving: Quasi-invariant at l3: 1 + __const_5^0 <= __const_10^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.008316s Remaining time after improvement: 0.997996 Minimizing number of undef constraints... LOG: CALL solveNonLinear LOG: RETURN solveNonLinear - Elapsed time: 0.004305s Number of undef constraints reduced! Non-termination implied by a set of quasi-invariant(s): Quasi-invariant at l3: 1 + __const_5^0 <= __const_10^0 Strengthening and disabling EXIT transitions... Closed exits from l3: 3 Strengthening exit transition (result): Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + undef19, rest remain the same}> Checking conditional non-termination of SCC {l3}... EXIT TRANSITIONS: Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013835s Time used: 0.013609 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.018137s Time used: 0.018132 LOG: SAT solveNonLinear - Elapsed time: 0.031972s Cost: 1; Total time: 0.031741 Failed at location 3: i^0 <= __const_5^0 Before Improving: Quasi-invariant at l3: i^0 <= __const_5^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.006149s Remaining time after improvement: 0.998376 Minimizing number of undef constraints... LOG: CALL solveNonLinear LOG: RETURN solveNonLinear - Elapsed time: 0.003594s Number of undef constraints reduced! Non-termination implied by a set of quasi-invariant(s): Quasi-invariant at l3: i^0 <= __const_5^0 Constraint over undef '1 + undef19 <= __const_5^0' in transition: 1 + undef19, rest remain the same}> Strengthening and disabling EXIT transitions... Closed exits from l3: 1 Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + i^0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): 1 + undef19, rest remain the same}> Calling reachability with... Transition: Conditions: 1 + __const_5^0 <= __const_10^0, i^0 <= __const_5^0, OPEN EXITS: (condsUp: 1 + __const_5^0 <= __const_10^0) --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: Conditions: i^0 <= __const_5^0, 1 + __const_5^0 <= __const_10^0, OPEN EXITS: > Conditions are reachable! Program does NOT terminate