15.32/15.37 NO 15.32/15.37 15.32/15.37 Solver Timeout: 4 15.32/15.37 Global Timeout: 300 15.32/15.37 No parsing errors! 15.32/15.37 Init Location: 0 15.32/15.37 Transitions: 15.32/15.37 15.32/15.37 0) /\ (arg2 > ~(1)), par{arg1 -> arg2, arg2 -> undef2}> 15.32/15.37 ((~(1) * arg1) + 1), arg2 -> undef4}> 15.32/15.37 0) /\ (2 > (~(1) * arg1)), par{arg1 -> ((~(1) * arg1) - 1), arg2 -> undef6}> 15.32/15.37 undef7, arg2 -> undef8}> 15.32/15.37 15.32/15.37 Fresh variables: 15.32/15.37 undef2, undef4, undef6, undef7, undef8, 15.32/15.37 15.32/15.37 Undef variables: 15.32/15.37 undef2, undef4, undef6, undef7, undef8, 15.32/15.37 15.32/15.37 Abstraction variables: 15.32/15.37 15.32/15.37 Exit nodes: 15.32/15.37 15.32/15.37 Accepting locations: 15.32/15.37 15.32/15.37 Asserts: 15.32/15.37 15.32/15.37 Preprocessed LLVMGraph 15.32/15.37 Init Location: 0 15.32/15.37 Transitions: 15.32/15.37 0) /\ (undef8 > ~(1))> 15.32/15.37 ((~(1) * arg1) + 1)}> 15.32/15.37 0) /\ (2 > (~(1) * arg1)), par{arg1 -> ((~(1) * arg1) - 1)}> 15.32/15.37 15.32/15.37 Fresh variables: 15.32/15.37 undef2, undef4, undef6, undef7, undef8, 15.32/15.37 15.32/15.37 Undef variables: 15.32/15.37 undef2, undef4, undef6, undef7, undef8, 15.32/15.37 15.32/15.37 Abstraction variables: 15.32/15.37 15.32/15.37 Exit nodes: 15.32/15.37 15.32/15.37 Accepting locations: 15.32/15.37 15.32/15.37 Asserts: 15.32/15.37 15.32/15.37 ************************************************************* 15.32/15.37 ******************************************************************************************* 15.32/15.37 *********************** WORKING TRANSITION SYSTEM (DAG) *********************** 15.32/15.37 ******************************************************************************************* 15.32/15.37 15.32/15.37 Init Location: 0 15.32/15.37 Graph 0: 15.32/15.37 Transitions: 15.32/15.37 Variables: 15.32/15.37 15.32/15.37 Graph 1: 15.32/15.37 Transitions: 15.32/15.37 1 - arg1, rest remain the same}> 15.32/15.37 -1 - arg1, rest remain the same}> 15.32/15.37 Variables: 15.32/15.37 arg1 15.32/15.37 15.32/15.37 Precedence: 15.32/15.37 Graph 0 15.32/15.37 15.32/15.37 Graph 1 15.32/15.37 15.32/15.37 15.32/15.37 Map Locations to Subgraph: 15.32/15.37 ( 0 , 0 ) 15.32/15.37 ( 2 , 1 ) 15.32/15.37 15.32/15.37 ******************************************************************************************* 15.32/15.37 ******************************** CHECKING ASSERTIONS ******************************** 15.32/15.37 ******************************************************************************************* 15.32/15.37 15.32/15.37 Proving termination of subgraph 0 15.32/15.37 Proving termination of subgraph 1 15.32/15.37 Checking unfeasibility... 15.32/15.37 Time used: 0.002867 15.32/15.37 15.32/15.37 Checking conditional termination of SCC {l2}... 15.32/15.37 15.32/15.37 LOG: CALL solveLinear 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear - Elapsed time: 0.000760s 15.32/15.37 15.32/15.37 LOG: CALL solveLinear 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear - Elapsed time: 0.009256s 15.32/15.37 Trying to remove transition: -1 - arg1, rest remain the same}> 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005886s 15.32/15.37 Time used: 0.005718 15.32/15.37 Trying to remove transition: 1 - arg1, rest remain the same}> 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005092s 15.32/15.37 Time used: 0.00482 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.011453s 15.32/15.37 Time used: 0.011177 15.32/15.37 Solving with 2 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.026550s 15.32/15.37 Time used: 0.025939 15.32/15.37 Improving Solution with cost 1 ... 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetNextSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetNextSolution - Elapsed time: 0.139528s 15.32/15.37 Time used: 0.139517 15.32/15.37 15.32/15.37 LOG: SAT solveNonLinear - Elapsed time: 0.166078s 15.32/15.37 Cost: 1; Total time: 0.165456 15.32/15.37 Failed at location 2: arg1 <= 0 15.32/15.37 Before Improving: 15.32/15.37 Quasi-invariant at l2: arg1 <= 0 15.32/15.37 Quasi-invariant at l2: 0 <= arg1 15.32/15.37 Optimizing invariants... 15.32/15.37 15.32/15.37 LOG: CALL solveLinear 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear - Elapsed time: 0.011245s 15.32/15.37 Remaining time after improvement: 0.998454 15.32/15.37 Termination implied by a set of quasi-invariant(s): 15.32/15.37 Quasi-invariant at l2: arg1 <= 0 15.32/15.37 Quasi-invariant at l2: 0 <= arg1 15.32/15.37 [ Invariant Graph ] 15.32/15.37 Strengthening and disabling transitions... 15.32/15.37 15.32/15.37 LOG: CALL solverLinear in Graph for feasibility 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear in Graph for feasibility 15.32/15.37 It's unfeasible. Removing transition: 15.32/15.37 1 - arg1, rest remain the same}> 15.32/15.37 15.32/15.37 LOG: CALL solverLinear in Graph for feasibility 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear in Graph for feasibility 15.32/15.37 It's unfeasible. Removing transition: 15.32/15.37 -1 - arg1, rest remain the same}> 15.32/15.37 [ Termination Graph ] 15.32/15.37 Strengthening and disabling transitions... 15.32/15.37 15.32/15.37 LOG: CALL solverLinear in Graph for feasibility 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear in Graph for feasibility 15.32/15.37 It's unfeasible. Removing transition: 15.32/15.37 1 - arg1, rest remain the same}> 15.32/15.37 15.32/15.37 LOG: CALL solverLinear in Graph for feasibility 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear in Graph for feasibility 15.32/15.37 It's unfeasible. Removing transition: 15.32/15.37 -1 - arg1, rest remain the same}> 15.32/15.37 New Graphs: 15.32/15.37 Calling Safety with literal arg1 <= 0 and entry 15.32/15.37 15.32/15.37 LOG: CALL check - Post:arg1 <= 0 - Process 1 15.32/15.37 * Exit transition: 15.32/15.37 * Postcondition : arg1 <= 0 15.32/15.37 15.32/15.37 LOG: CALL solveLinear 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear - Elapsed time: 0.000600s 15.32/15.37 > Postcondition is not implied! 15.32/15.37 15.32/15.37 LOG: RETURN check - Elapsed time: 0.000692s 15.32/15.37 INVARIANTS: 15.32/15.37 2: 15.32/15.37 Quasi-INVARIANTS to narrow Graph: 15.32/15.37 2: arg1 <= 0 , 0 <= arg1 , 15.32/15.37 Narrowing transition: 15.32/15.37 1 - arg1, rest remain the same}> 15.32/15.37 15.32/15.37 LOG: Narrow transition size 2 15.32/15.37 Narrowing transition: 15.32/15.37 -1 - arg1, rest remain the same}> 15.32/15.37 15.32/15.37 LOG: Narrow transition size 2 15.32/15.37 invGraph after Narrowing: 15.32/15.37 Transitions: 15.32/15.37 1 - arg1, rest remain the same}> 15.32/15.37 -1 - arg1, rest remain the same}> 15.32/15.37 Variables: 15.32/15.37 arg1 15.32/15.37 Checking conditional termination of SCC {l2}... 15.32/15.37 15.32/15.37 LOG: CALL solveLinear 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear - Elapsed time: 0.000722s 15.32/15.37 15.32/15.37 LOG: CALL solveLinear 15.32/15.37 15.32/15.37 LOG: RETURN solveLinear - Elapsed time: 0.009233s 15.32/15.37 Trying to remove transition: -1 - arg1, rest remain the same}> 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005476s 15.32/15.37 Time used: 0.005321 15.32/15.37 Trying to remove transition: 1 - arg1, rest remain the same}> 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.005152s 15.32/15.37 Time used: 0.00487 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.010184s 15.32/15.37 Time used: 0.009896 15.32/15.37 Solving with 2 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 4.001807s 15.32/15.37 Time used: 4.00093 15.32/15.37 Solving with 3 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 1.011109s 15.32/15.37 Time used: 1.00078 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.015491s 15.32/15.37 Time used: 0.009427 15.32/15.37 15.32/15.37 Proving non-termination of subgraph 1 15.32/15.37 Transitions: 15.32/15.37 1 - arg1, rest remain the same}> 15.32/15.37 -1 - arg1, rest remain the same}> 15.32/15.37 Variables: 15.32/15.37 arg1 15.32/15.37 15.32/15.37 Checking conditional non-termination of SCC {l2}... 15.32/15.37 EXIT TRANSITIONS: 15.32/15.37 15.32/15.37 15.32/15.37 Solving with 1 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 0.004638s 15.32/15.37 Time used: 0.004539 15.32/15.37 Solving with 2 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.014083s 15.32/15.37 Time used: 5.01327 15.32/15.37 Solving with 3 template(s). 15.32/15.37 15.32/15.37 LOG: CALL solveNonLinearGetFirstSolution 15.32/15.37 15.32/15.37 LOG: RETURN solveNonLinearGetFirstSolution - Elapsed time: 5.006757s 15.32/15.37 Time used: 5.00099 15.32/15.37 > Checking if the negation of the conditions of every pending exit is quasi-invariant... YES 15.32/15.37 Calling reachability with... 15.32/15.37 Transition: 15.32/15.37 Conditions: 0 <= arg1, 1 <= arg1, 15.32/15.37 Transition: 15.32/15.37 Conditions: 1 + arg1 <= 0, arg1 <= 0, 15.32/15.37 OPEN EXITS: 15.32/15.37 15.32/15.37 15.32/15.37 15.32/15.37 --- Reachability graph --- 15.32/15.37 > Graph without transitions. 15.32/15.37 15.32/15.37 Calling reachability with... 15.32/15.37 Transition: 15.32/15.37 Conditions: 1 <= arg1, 15.32/15.37 Transition: 15.32/15.37 Conditions: 1 + arg1 <= 0, 15.32/15.37 OPEN EXITS: 15.32/15.37 15.32/15.37 15.32/15.37 > Conditions are reachable! 15.32/15.37 15.32/15.37 Program does NOT terminate 15.32/15.37 /export/starexec/sandbox/solver/bin/starexec_run_termcomp2019_ITS: line 26: delete: command not found 15.32/15.37 /export/starexec/sandbox/solver/bin/starexec_run_termcomp2019_ITS: line 27: edit: command not found 15.32/15.37 EOF