NO Solver Timeout: 4 Global Timeout: 60 No parsing errors! Init Location: 0 Transitions: undef5}> (0 + __const_3000^0)}> Fresh variables: undef5, Undef variables: undef5, Abstraction variables: Exit nodes: Accepting locations: Asserts: Preprocessed LLVMGraph Init Location: 0 Transitions: undef5}> Fresh variables: undef5, Undef variables: undef5, Abstraction variables: Exit nodes: Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^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: 0.003288 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000787s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003138s Trying to remove transition: undef5, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011928s Time used: 0.011689 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.013371s Time used: 0.012655 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.018188s Time used: 0.018183 LOG: SAT solveNonLinear - Elapsed time: 0.031560s Cost: 1; Total time: 0.030838 Failed at location 1: __const_2000^0 <= y^0 Before Improving: Quasi-invariant at l1: __const_2000^0 <= y^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003438s Remaining time after improvement: 0.998569 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: __const_2000^0 <= y^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: undef5, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: undef5, rest remain the same}> New Graphs: Calling Safety with literal __const_2000^0 <= y^0 and entry LOG: CALL check - Post:__const_2000^0 <= y^0 - Process 1 * Exit transition: * Postcondition : __const_2000^0 <= y^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000445s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000536s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: __const_2000^0 <= y^0 , Narrowing transition: undef5, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000720s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.002998s Trying to remove transition: undef5, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010089s Time used: 0.0099 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.012694s Time used: 0.011884 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.016991s Time used: 0.016986 LOG: SAT solveNonLinear - Elapsed time: 0.029685s Cost: 1; Total time: 0.02887 Failed at location 1: __const_1000^0 + __const_2000^0 <= y^0 Before Improving: Quasi-invariant at l1: __const_1000^0 + __const_2000^0 <= y^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003388s Remaining time after improvement: 0.998541 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: __const_1000^0 + __const_2000^0 <= y^0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef5, 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): undef5, rest remain the same}> Ranking function: __const_1000^0 - __const_110^0 + x^0 New Graphs: Calling Safety with literal __const_1000^0 + __const_2000^0 <= y^0 and entry LOG: CALL check - Post:__const_1000^0 + __const_2000^0 <= y^0 - Process 2 * Exit transition: * Postcondition : __const_1000^0 + __const_2000^0 <= y^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000408s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000494s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: __const_1000^0 + __const_2000^0 <= y^0 , Narrowing transition: undef5, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000825s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003538s Trying to remove transition: undef5, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.009980s Time used: 0.009773 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.018073s Time used: 0.017264 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.014946s Time used: 0.014941 LOG: SAT solveNonLinear - Elapsed time: 0.033020s Cost: 1; Total time: 0.032205 Failed at location 1: __const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^0 Before Improving: Quasi-invariant at l1: __const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.003680s Remaining time after improvement: 0.998275 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: __const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^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: undef5, 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: undef5, rest remain the same}> New Graphs: Calling Safety with literal __const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^0 and entry LOG: CALL check - Post:__const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^0 - Process 3 * Exit transition: * Postcondition : __const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000582s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000696s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: __const_1000^0 + __const_2000^0 + x^0 <= 1 + __const_110^0 + y^0 , Narrowing transition: undef5, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000964s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004079s Trying to remove transition: undef5, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011029s Time used: 0.010811 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.014894s Time used: 0.014026 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.020669s Time used: 0.020664 LOG: SAT solveNonLinear - Elapsed time: 0.035563s Cost: 1; Total time: 0.03469 Failed at location 1: 1 + __const_1000^0 <= 0 Before Improving: Quasi-invariant at l1: 1 + __const_1000^0 <= 0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004049s Remaining time after improvement: 0.997991 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 1 + __const_1000^0 <= 0 [ Invariant Graph ] Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef5, 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): undef5, rest remain the same}> Ranking function: __const_1000^0 - __const_110^0 + x^0 New Graphs: Calling Safety with literal 1 + __const_1000^0 <= 0 and entry LOG: CALL check - Post:1 + __const_1000^0 <= 0 - Process 4 * Exit transition: * Postcondition : 1 + __const_1000^0 <= 0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000558s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000657s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: 1 + __const_1000^0 <= 0 , Narrowing transition: undef5, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001021s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004371s Trying to remove transition: undef5, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010725s Time used: 0.010492 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.016800s Time used: 0.015986 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.022404s Time used: 0.022399 LOG: SAT solveNonLinear - Elapsed time: 0.039204s Cost: 1; Total time: 0.038385 Failed at location 1: __const_1000^0 + x^0 <= __const_110^0 Before Improving: Quasi-invariant at l1: __const_1000^0 + x^0 <= __const_110^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004366s Remaining time after improvement: 0.997812 Termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: __const_1000^0 + x^0 <= __const_110^0 [ 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: undef5, rest remain the same}> [ Termination Graph ] Strengthening and disabling transitions... > It's unfeasible. Removing transition: undef5, rest remain the same}> New Graphs: Calling Safety with literal __const_1000^0 + x^0 <= __const_110^0 and entry LOG: CALL check - Post:__const_1000^0 + x^0 <= __const_110^0 - Process 5 * Exit transition: * Postcondition : __const_1000^0 + x^0 <= __const_110^0 LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000763s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000885s INVARIANTS: 1: Quasi-INVARIANTS to narrow Graph: 1: __const_1000^0 + x^0 <= __const_110^0 , Narrowing transition: undef5, rest remain the same}> LOG: Narrow transition size 1 invGraph after Narrowing: Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^0 Checking conditional termination of SCC {l1}... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.001135s LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.004705s Trying to remove transition: undef5, rest remain the same}> Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011180s Time used: 0.010947 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.025829s Time used: 0.025102 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001190s Time used: 4.00041 Solving with 3 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.005912s Time used: 1.00005 Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.027750s Time used: 0.014417 Proving non-termination of subgraph 1 Transitions: undef5, rest remain the same}> Variables: __const_1000^0, __const_110^0, __const_2000^0, x^0, y^0 Checking that every undef value has an assignment... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.002218s Checking conditional non-termination of SCC {l1}... EXIT TRANSITIONS: Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.084274s Time used: 0.08369 Improving Solution with cost 8 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.237335s Time used: 0.237334 LOG: SAT solveNonLinear - Elapsed time: 0.321610s Cost: 8; Total time: 0.321024 Failed at location 1: 1 + y^0 <= __const_1000^0 + __const_2000^0 Before Improving: Quasi-invariant at l1: 1 + y^0 <= __const_1000^0 + __const_2000^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.024811s Remaining time after improvement: 0.995609 Minimizing number of undef constraints... LOG: CALL solveNonLinear LOG: RETURN solveNonLinear - Elapsed time: 0.008205s Number of undef constraints reduced! Non-termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 1 + y^0 <= __const_1000^0 + __const_2000^0 Strengthening and disabling EXIT transitions... Closed exits from l1: 4 Strengthening exit transition (result): Strengthening exit transition (result): Strengthening exit transition (result): 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): undef5, rest remain the same}> Checking conditional non-termination of SCC {l1}... EXIT TRANSITIONS: Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.000087s Time used: 5.00005 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.665782s Time used: 1.5226 Improving Solution with cost 3 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 1.001060s Time used: 1.00106 LOG: SAT solveNonLinear - Elapsed time: 2.666841s Cost: 3; Total time: 2.52366 Failed at location 1: __const_1000^0 <= 0 Failed at location 1: 1 + __const_110^0 <= __const_1000^0 + x^0 Before Improving: Quasi-invariant at l1: __const_1000^0 <= 0 Quasi-invariant at l1: 1 + __const_110^0 <= __const_1000^0 + x^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.007475s Remaining time after improvement: 0.996067 Minimizing number of undef constraints... LOG: CALL solveNonLinear LOG: RETURN solveNonLinear - Elapsed time: 0.008452s Number of undef constraints reduced! Non-termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: __const_1000^0 <= 0 Quasi-invariant at l1: 1 + __const_110^0 <= __const_1000^0 + x^0 Strengthening and disabling EXIT transitions... Closed exits from l1: 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): undef5, rest remain the same}> Checking conditional non-termination of SCC {l1}... EXIT TRANSITIONS: Solving with 1 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.009966s Time used: 5.00993 Solving with 2 template(s). LOG: CALL solveNonLinearGetFirstSolution LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.175837s Time used: 0.072625 Improving Solution with cost 1 ... LOG: CALL solveNonLinearGetNextSolution LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.082695s Time used: 0.08269 LOG: SAT solveNonLinear - Elapsed time: 0.258532s Cost: 1; Total time: 0.155315 Failed at location 1: 0 <= __const_1000^0 Before Improving: Quasi-invariant at l1: 0 <= __const_1000^0 Optimizing invariants... LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.034420s Remaining time after improvement: 0.996111 Minimizing number of undef constraints... LOG: CALL solveNonLinear LOG: RETURN solveNonLinear - Elapsed time: 0.006691s Number of undef constraints reduced! Non-termination implied by a set of quasi-invariant(s): Quasi-invariant at l1: 0 <= __const_1000^0 Strengthening and disabling EXIT transitions... Closed exits from l1: 1 Strengthening and disabling transitions... LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): undef5, rest remain the same}> Calling reachability with... Transition: Conditions: 1 + y^0 <= __const_1000^0 + __const_2000^0, __const_1000^0 <= 0, 1 + __const_110^0 <= __const_1000^0 + x^0, 0 <= __const_1000^0, OPEN EXITS: (condsUp: 1 + y^0 <= __const_1000^0 + __const_2000^0, __const_1000^0 <= 0, 0 <= __const_1000^0) --- Reachability graph --- > Graph without transitions. Calling reachability with... Transition: Conditions: 1 + __const_110^0 <= __const_1000^0 + x^0, 1 + y^0 <= __const_1000^0 + __const_2000^0, __const_1000^0 <= 0, 0 <= __const_1000^0, OPEN EXITS: > Conditions are reachable! Program does NOT terminate