NO Solver Timeout: 4 Global Timeout: 300 Maximum number of concurrent processes: 900 ******************************************************************************************* *********************** UNPROCESSED TRANSITION SYSTEMS PER FUNCTION *********************** ******************************************************************************************* List of LLVMGraphs + assumeNodes + staticAssertNodes [1] : +++++++++++++++++++++++++++++++ main +++++++++++++++++++++++++++++++ + + Init Location: 0 Transitions: 0, main_i -> 0}> 0}> (main_j + 0)}> (main_i + 1)}> 0}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: Accepting locations: Asserts: + Assume Nodes [0]: ++++++++++++++++++++++++++++++++++++++++++++++++ + Static Assert Nodes [0]: +++++++++++++++++++++++++++++++++++++++++ + After preprocess (paralelization): ++++++++++++++++++++++++++++++ Init Location: 0 Transitions: 0, main_i -> 0}> 0}> (main_j + 0)}> (main_i + 1)}> 0}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: 11, Accepting locations: Asserts: + + +++++++++++++++++++++++++++++++ main +++++++++++++++++++++++++++++++ Function Return and Parameters Information [1 functions]: function name: main [1 return + 0 parameters] demangled: main main__func_return_ [function result] : int AST Ident Scanner Information [4 idents]: __VERIFIER_nondet_int | function | [integer, ()] | main | function | [integer, ()] | i | local variable | integer | | j | local variable | integer | | Main function: main Preprocessed LLVMGraph Init Location: 0 Transitions: 0}> (main_j + 0)}> (main_i + 1), main_j -> 0}> (main_i + 1)}> Fresh variables: Undef variables: Abstraction variables: Exit nodes: 11, Accepting locations: Asserts: ************************************************************* ******************************************************************************************* *********************** WORKING TRANSITION SYSTEM (DAG) *********************** ******************************************************************************************* Init Location: 0 Graph 0: Transitions: Variables: Graph 1: Transitions: 1 + main_i, main_j -> 0, rest remain the same}> Variables: main_j, main_i Graph 2: Transitions: Variables: Precedence: Graph 0 Graph 1 0, rest remain the same}> Graph 2 1 + main_i, rest remain the same}> Map Locations to Subgraph: ( 0 , 0 ) ( 5 , 1 ) ( 11 , 2 ) ******************************************************************************************* ******************************** CHECKING ASSERTIONS ******************************** ******************************************************************************************* Proving termination of subgraph 0 Proving termination of subgraph 1 Checking unfeasibility... Time used: 0.00179 Some transition disabled by a set of invariant(s): Invariant at l5: main_j <= 0 Strengthening and disabling transitions... > It's unfeasible. Removing transition: 1 + main_i, main_j -> 0, rest remain the same}> LOG: CALL solverLinear in Graph for feasibility LOG: RETURN solveLinear in Graph for feasibility Strengthening transition (result): Checking unfeasibility... Time used: 0.000705 > No variable changes in termination graph. Checking conditional unfeasibility... Calling Safety with literal 1 <= main_j and entry LOG: CALL check - Post:1 <= main_j - Process 1 * Exit transition: * Postcondition : 1 <= main_j Postcodition moved up: 1 <= main_j LOG: Try proving POST LOG: CALL check - Post:1 <= main_j - Process 2 * Exit transition: 0, rest remain the same}> * Postcondition : 1 <= main_j LOG: CALL solveLinear LOG: RETURN solveLinear - Elapsed time: 0.000104s > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.000131s LOG: NarrowEntry size 1 Narrowing transition: LOG: Narrow transition size 1 ENTRIES: 0, rest remain the same}> END ENTRIES: GRAPH: END GRAPH: EXIT: POST: 1 <= main_j LOG: Try proving POST [5779 : 5780] [5779 : 5781] [5779 : 5782] LOG: Postcondition is not implied - no solution > Postcondition is not implied! LOG: RETURN check - Elapsed time: 0.021557s [5779 : 5784] [5779 : 5785] Successful child: 5784 Program does NOT terminate