YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 09:42:55,491 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 09:42:55,493 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 09:42:55,504 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 09:42:55,504 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 09:42:55,505 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 09:42:55,507 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 09:42:55,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 09:42:55,510 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 09:42:55,510 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 09:42:55,511 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 09:42:55,512 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 09:42:55,512 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 09:42:55,513 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 09:42:55,514 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 09:42:55,515 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 09:42:55,516 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 09:42:55,518 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 09:42:55,519 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 09:42:55,521 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 09:42:55,522 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 09:42:55,523 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 09:42:55,525 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 09:42:55,525 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 09:42:55,525 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 09:42:55,526 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 09:42:55,527 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 09:42:55,528 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 09:42:55,528 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 09:42:55,528 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 09:42:55,529 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 09:42:55,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 09:42:55,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 09:42:55,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 09:42:55,532 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 09:42:55,532 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 09:42:55,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 09:42:55,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 09:42:55,534 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 09:42:55,534 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 09:42:55,548 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 09:42:55,549 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 09:42:55,550 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 09:42:55,550 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 09:42:55,550 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 09:42:55,550 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:42:55,550 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 09:42:55,551 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 09:42:55,551 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 09:42:55,551 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 09:42:55,551 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 09:42:55,551 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 09:42:55,551 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 09:42:55,552 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 09:42:55,552 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:55,552 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 09:42:55,552 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 09:42:55,552 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 09:42:55,553 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 09:42:55,553 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 09:42:55,553 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 09:42:55,553 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 09:42:55,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 09:42:55,553 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 09:42:55,554 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:42:55,554 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 09:42:55,554 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 09:42:55,554 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 09:42:55,554 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 09:42:55,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 09:42:55,592 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 09:42:55,596 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 09:42:55,597 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 09:42:55,598 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 09:42:55,598 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 09:42:55,662 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/e6ca8ab66a554ff3851124b0983c4ffc/FLAG7f1429a24 [2020-06-22 09:42:55,994 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 09:42:55,995 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 09:42:56,001 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/e6ca8ab66a554ff3851124b0983c4ffc/FLAG7f1429a24 [2020-06-22 09:42:56,409 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/e6ca8ab66a554ff3851124b0983c4ffc [2020-06-22 09:42:56,421 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 09:42:56,422 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 09:42:56,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 09:42:56,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 09:42:56,427 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 09:42:56,428 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6666cd26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56, skipping insertion in model container [2020-06-22 09:42:56,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 09:42:56,456 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 09:42:56,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:42:56,612 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 09:42:56,681 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 09:42:56,695 INFO L195 MainTranslator]: Completed translation [2020-06-22 09:42:56,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56 WrapperNode [2020-06-22 09:42:56,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 09:42:56,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 09:42:56,696 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 09:42:56,697 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 09:42:56,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 09:42:56,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 09:42:56,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 09:42:56,730 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 09:42:56,739 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,748 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 09:42:56,749 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 09:42:56,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 09:42:56,749 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 09:42:56,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 09:42:56,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 09:42:56,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 09:42:56,954 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 09:42:56,954 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 09:42:56,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:42:56 BoogieIcfgContainer [2020-06-22 09:42:56,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 09:42:56,956 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 09:42:56,956 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 09:42:56,958 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 09:42:56,959 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:42:56" (1/1) ... [2020-06-22 09:42:56,973 INFO L313 BlockEncoder]: Initial Icfg 8 locations, 11 edges [2020-06-22 09:42:56,974 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 09:42:56,975 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 09:42:56,975 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 09:42:56,976 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 09:42:56,978 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 09:42:56,978 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 09:42:56,979 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 09:42:56,993 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 09:42:57,008 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 09:42:57,012 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 09:42:57,014 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:42:57,023 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 09:42:57,025 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2020-06-22 09:42:57,027 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:42:57,027 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:42:57,032 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 09:42:57,033 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:42:57,033 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 09:42:57,033 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 09:42:57,033 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 09:42:57,033 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 09:42:57,034 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 09:42:57,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:42:57 BasicIcfg [2020-06-22 09:42:57,034 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 09:42:57,035 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 09:42:57,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 09:42:57,038 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 09:42:57,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 09:42:56" (1/4) ... [2020-06-22 09:42:57,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6969ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (2/4) ... [2020-06-22 09:42:57,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6969ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:42:56" (3/4) ... [2020-06-22 09:42:57,041 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6969ad09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,041 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:42:57" (4/4) ... [2020-06-22 09:42:57,043 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:42:57,052 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 09:42:57,059 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 09:42:57,076 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 09:42:57,103 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:42:57,104 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 09:42:57,104 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 09:42:57,104 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:42:57,104 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:42:57,104 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:42:57,105 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 09:42:57,105 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:42:57,105 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 09:42:57,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 09:42:57,124 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 09:42:57,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 09:42:57,174 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 09:42:57,174 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-06-22 09:42:57,174 INFO L451 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: true [2020-06-22 09:42:57,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:42:57 BasicIcfg [2020-06-22 09:42:57,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 09:42:57,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 09:42:57,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 09:42:57,186 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 09:42:57,187 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:42:57,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 09:42:56" (1/5) ... [2020-06-22 09:42:57,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a69d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,188 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:42:57,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 09:42:56" (2/5) ... [2020-06-22 09:42:57,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a69d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,188 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:42:57,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 09:42:56" (3/5) ... [2020-06-22 09:42:57,189 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a69d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,189 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:42:57,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 09:42:57" (4/5) ... [2020-06-22 09:42:57,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69a69d60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:42:57, skipping insertion in model container [2020-06-22 09:42:57,190 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 09:42:57,190 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 09:42:57" (5/5) ... [2020-06-22 09:42:57,191 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 09:42:57,219 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 09:42:57,219 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 09:42:57,219 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 09:42:57,220 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 09:42:57,220 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 09:42:57,220 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 09:42:57,220 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 09:42:57,220 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 09:42:57,220 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 09:42:57,223 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 09:42:57,240 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:42:57,240 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:42:57,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:42:57,246 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:42:57,246 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:42:57,246 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 09:42:57,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 09:42:57,247 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:42:57,247 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:42:57,247 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:42:57,247 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 09:42:57,247 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:42:57,252 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [48] ULTIMATE.startENTRY-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~m~0_10 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~i~0_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 4#L20-2true [2020-06-22 09:42:57,253 INFO L796 eck$LassoCheckResult]: Loop: 4#L20-2true [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 5#L20true [39] L20-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~i~0_1 (+ v_ULTIMATE.start_main_~i~0_2 (- 1)))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 4#L20-2true [2020-06-22 09:42:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:57,258 INFO L82 PathProgramCache]: Analyzing trace with hash 79, now seen corresponding path program 1 times [2020-06-22 09:42:57,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:57,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:57,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:57,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:57,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:57,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:57,336 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 1 times [2020-06-22 09:42:57,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:57,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:57,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:57,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:57,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:57,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:57,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:57,346 INFO L82 PathProgramCache]: Analyzing trace with hash 77105, now seen corresponding path program 1 times [2020-06-22 09:42:57,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:57,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:57,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:57,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:57,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:57,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:57,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:42:57,399 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 09:42:57,399 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-06-22 09:42:57,440 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:42:57,441 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:42:57,442 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:42:57,442 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:42:57,442 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:42:57,442 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:57,442 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:42:57,442 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:42:57,443 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:42:57,443 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:42:57,443 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:42:57,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:57,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:57,475 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:57,556 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:42:57,557 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:57,564 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:57,564 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:57,597 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:57,597 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:57,603 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:57,604 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:57,630 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:57,631 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:57,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:57,636 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:57,666 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:42:57,666 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:57,698 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:42:57,700 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:42:57,701 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:42:57,701 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:42:57,701 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:42:57,701 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:42:57,701 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:42:57,701 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:42:57,701 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:42:57,701 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 09:42:57,702 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:42:57,702 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:42:57,704 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:57,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:57,712 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:57,786 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:42:57,791 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:42:57,793 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:57,795 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:57,795 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:57,795 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:57,795 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:57,800 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:42:57,800 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:42:57,807 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:57,807 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:57,808 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:57,808 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:57,808 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:57,808 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:57,811 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:42:57,811 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:42:57,819 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:57,820 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:57,820 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:57,820 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:42:57,821 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:57,821 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:57,821 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:57,822 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:42:57,822 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:42:57,829 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:42:57,834 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:42:57,834 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:42:57,836 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:42:57,837 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:42:57,837 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:42:57,837 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 09:42:57,839 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:42:57,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:57,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:57,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:42:57,872 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:42:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:57,882 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:42:57,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:42:57,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:42:57,921 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 09:42:57,926 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 09:42:57,927 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 3 states. Second operand 3 states. [2020-06-22 09:42:57,974 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 3 states.. Second operand 3 states. Result 7 states and 10 transitions. Complement of second has 5 states. [2020-06-22 09:42:57,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2020-06-22 09:42:57,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:42:57,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2020-06-22 09:42:57,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 09:42:57,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:57,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 09:42:57,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:57,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 4 letters. [2020-06-22 09:42:57,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:57,987 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2020-06-22 09:42:57,988 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:42:57,992 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 09:42:57,993 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 09:42:57,993 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 09:42:57,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-06-22 09:42:57,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:42:57,994 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 09:42:58,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-06-22 09:42:58,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-06-22 09:42:58,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-06-22 09:42:58,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-06-22 09:42:58,022 INFO L729 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-06-22 09:42:58,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 09:42:58,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 09:42:58,026 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2020-06-22 09:42:58,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 09:42:58,037 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2020-06-22 09:42:58,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 09:42:58,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 7 transitions. [2020-06-22 09:42:58,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:42:58,041 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 5 states and 6 transitions. [2020-06-22 09:42:58,041 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-06-22 09:42:58,041 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 09:42:58,041 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2020-06-22 09:42:58,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:42:58,041 INFO L706 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-22 09:42:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2020-06-22 09:42:58,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-06-22 09:42:58,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-06-22 09:42:58,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2020-06-22 09:42:58,043 INFO L729 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-22 09:42:58,043 INFO L609 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2020-06-22 09:42:58,043 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 09:42:58,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2020-06-22 09:42:58,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2020-06-22 09:42:58,044 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:42:58,044 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:42:58,044 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-06-22 09:42:58,044 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:42:58,045 INFO L794 eck$LassoCheckResult]: Stem: 62#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~m~0_10 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~i~0_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 63#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 66#L20 [43] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 (* (- 1) v_ULTIMATE.start_main_~m~0_7))) (>= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 64#L20-2 [2020-06-22 09:42:58,045 INFO L796 eck$LassoCheckResult]: Loop: 64#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 65#L20 [39] L20-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~i~0_2 v_ULTIMATE.start_main_~m~0_1) (= v_ULTIMATE.start_main_~i~0_1 (+ v_ULTIMATE.start_main_~i~0_2 (- 1)))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_2, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_1} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 64#L20-2 [2020-06-22 09:42:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,045 INFO L82 PathProgramCache]: Analyzing trace with hash 77109, now seen corresponding path program 1 times [2020-06-22 09:42:58,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:58,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:58,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:58,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,058 INFO L82 PathProgramCache]: Analyzing trace with hash 2147, now seen corresponding path program 2 times [2020-06-22 09:42:58,058 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:58,058 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:58,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:58,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,068 INFO L82 PathProgramCache]: Analyzing trace with hash 74102935, now seen corresponding path program 1 times [2020-06-22 09:42:58,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:58,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:58,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,070 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 09:42:58,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,096 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:42:58,096 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:42:58,096 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:42:58,096 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:42:58,097 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:42:58,097 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,097 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:42:58,097 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:42:58,097 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:42:58,097 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:42:58,097 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:42:58,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,151 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:42:58,151 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,157 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,158 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:58,185 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,189 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,190 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,220 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:42:58,220 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,251 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:42:58,252 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:42:58,253 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:42:58,253 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:42:58,253 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:42:58,253 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:42:58,253 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:42:58,253 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:42:58,253 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:42:58,254 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 09:42:58,254 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:42:58,254 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:42:58,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,266 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,316 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:42:58,316 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:42:58,317 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:58,318 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:58,318 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:58,318 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:58,318 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:58,320 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:42:58,320 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:42:58,325 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:58,325 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:58,326 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:58,326 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:42:58,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:58,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:58,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:58,328 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:42:58,328 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:42:58,333 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:42:58,337 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 09:42:58,337 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 09:42:58,338 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:42:58,338 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 09:42:58,338 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:42:58,338 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-06-22 09:42:58,339 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 09:42:58,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:58,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 09:42:58,365 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:42:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:58,373 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 09:42:58,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:42:58,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:42:58,409 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 09:42:58,410 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-06-22 09:42:58,410 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand 3 states. [2020-06-22 09:42:58,425 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 7 states and 9 transitions. Complement of second has 4 states. [2020-06-22 09:42:58,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 09:42:58,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 09:42:58,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2020-06-22 09:42:58,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 2 letters. [2020-06-22 09:42:58,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:58,427 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2020-06-22 09:42:58,427 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:58,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 3 letters. Loop has 4 letters. [2020-06-22 09:42:58,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:58,429 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 9 transitions. [2020-06-22 09:42:58,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:42:58,430 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 9 transitions. [2020-06-22 09:42:58,430 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2020-06-22 09:42:58,430 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-06-22 09:42:58,430 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2020-06-22 09:42:58,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 09:42:58,431 INFO L706 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2020-06-22 09:42:58,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2020-06-22 09:42:58,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2020-06-22 09:42:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-06-22 09:42:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2020-06-22 09:42:58,432 INFO L729 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 09:42:58,432 INFO L609 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2020-06-22 09:42:58,432 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 09:42:58,433 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2020-06-22 09:42:58,434 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 09:42:58,434 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 09:42:58,434 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 09:42:58,434 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 09:42:58,434 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-06-22 09:42:58,434 INFO L794 eck$LassoCheckResult]: Stem: 110#ULTIMATE.startENTRY [48] ULTIMATE.startENTRY-->L20-2: Formula: (and (< v_ULTIMATE.start_main_~m~0_10 v_ULTIMATE.start_main_~n~0_8) (< 0 v_ULTIMATE.start_main_~m~0_10) (= v_ULTIMATE.start_main_~n~0_8 v_ULTIMATE.start_main_~i~0_11)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_6|, ULTIMATE.start_main_#t~nondet1=|v_ULTIMATE.start_main_#t~nondet1_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_10, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_11} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#t~nondet1, ULTIMATE.start_main_#res, ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0] 111#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 112#L20 [2020-06-22 09:42:58,435 INFO L796 eck$LassoCheckResult]: Loop: 112#L20 [43] L20-->L20-2: Formula: (and (= v_ULTIMATE.start_main_~i~0_6 (+ v_ULTIMATE.start_main_~i~0_7 (* (- 1) v_ULTIMATE.start_main_~m~0_7))) (>= v_ULTIMATE.start_main_~i~0_7 v_ULTIMATE.start_main_~m~0_7)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~m~0=v_ULTIMATE.start_main_~m~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 115#L20-2 [37] L20-2-->L20: Formula: (< 0 v_ULTIMATE.start_main_~i~0_10) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10} AuxVars[] AssignedVars[] 112#L20 [2020-06-22 09:42:58,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2486, now seen corresponding path program 1 times [2020-06-22 09:42:58,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:58,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:58,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:58,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,443 INFO L82 PathProgramCache]: Analyzing trace with hash 2331, now seen corresponding path program 1 times [2020-06-22 09:42:58,444 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:58,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:58,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:58,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:58,450 INFO L82 PathProgramCache]: Analyzing trace with hash 2390416, now seen corresponding path program 2 times [2020-06-22 09:42:58,450 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 09:42:58,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 09:42:58,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 09:42:58,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 09:42:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 09:42:58,496 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:42:58,496 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:42:58,496 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:42:58,496 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:42:58,496 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 09:42:58,496 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,496 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:42:58,497 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:42:58,497 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 09:42:58,497 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:42:58,497 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:42:58,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,504 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,508 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,515 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:58,594 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:42:58,594 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,603 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,603 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,607 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:58,607 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,640 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:58,640 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,698 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:58,698 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,704 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,704 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,708 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:58,708 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:58,764 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 09:42:58,764 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,769 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 09:42:58,770 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 09:42:58,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 09:42:58,803 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 09:42:59,100 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 09:42:59,102 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 09:42:59,102 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 09:42:59,103 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 09:42:59,103 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 09:42:59,103 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 09:42:59,103 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 09:42:59,103 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 09:42:59,103 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 09:42:59,103 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Lasso [2020-06-22 09:42:59,103 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 09:42:59,103 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 09:42:59,105 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:59,107 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:59,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:59,111 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:59,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:59,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 09:42:59,183 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 09:42:59,184 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 09:42:59,184 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:59,185 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:59,185 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:42:59,185 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:59,185 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:59,186 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:59,186 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:42:59,186 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:42:59,187 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:59,187 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:59,188 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:59,188 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:42:59,188 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:59,188 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:59,188 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:59,189 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:42:59,189 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:42:59,189 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:59,190 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:59,190 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:59,190 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 09:42:59,190 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:59,191 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:59,191 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:59,191 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 09:42:59,192 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 09:42:59,192 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:59,193 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:59,193 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:59,193 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:59,193 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:59,194 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:59,195 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:42:59,195 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:42:59,198 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 09:42:59,198 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 09:42:59,199 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 09:42:59,199 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 09:42:59,199 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 09:42:59,199 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 09:42:59,202 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 09:42:59,202 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 09:42:59,230 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 09:42:59,255 INFO L443 ModelExtractionUtils]: Simplification made 8 calls to the SMT solver. [2020-06-22 09:42:59,256 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 09:42:59,256 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 09:42:59,259 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2020-06-22 09:42:59,260 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 09:42:59,260 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0, 2*ULTIMATE.start_main_~i~0 - 1 >= 0] [2020-06-22 09:42:59,268 INFO L297 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2020-06-22 09:42:59,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 09:42:59,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:59,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 3 conjunts are in the unsatisfiable core [2020-06-22 09:42:59,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:42:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 09:42:59,319 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-06-22 09:42:59,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 09:42:59,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 09:42:59,394 INFO L98 LoopCannibalizer]: 3 predicates before loop cannibalization 3 predicates after loop cannibalization [2020-06-22 09:42:59,395 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2020-06-22 09:42:59,395 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3 Second operand 4 states. [2020-06-22 09:42:59,437 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 8 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 8 states. [2020-06-22 09:42:59,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2020-06-22 09:42:59,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 09:42:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2020-06-22 09:42:59,438 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2020-06-22 09:42:59,438 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:59,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 4 letters. Loop has 2 letters. [2020-06-22 09:42:59,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:59,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 4 letters. [2020-06-22 09:42:59,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 09:42:59,442 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2020-06-22 09:42:59,443 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:42:59,443 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 0 states and 0 transitions. [2020-06-22 09:42:59,443 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 09:42:59,444 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 09:42:59,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 09:42:59,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 09:42:59,444 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:42:59,444 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:42:59,444 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 09:42:59,444 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 09:42:59,444 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 09:42:59,444 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 09:42:59,445 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 09:42:59,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 09:42:59 BasicIcfg [2020-06-22 09:42:59,450 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 09:42:59,451 INFO L168 Benchmark]: Toolchain (without parser) took 3029.69 ms. Allocated memory was 649.6 MB in the beginning and 756.5 MB in the end (delta: 107.0 MB). Free memory was 564.9 MB in the beginning and 703.2 MB in the end (delta: -138.3 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:42:59,452 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:42:59,453 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.51 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 564.9 MB in the beginning and 650.6 MB in the end (delta: -85.7 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:42:59,454 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 683.7 MB. Free memory was 650.6 MB in the beginning and 647.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 09:42:59,454 INFO L168 Benchmark]: Boogie Preprocessor took 18.49 ms. Allocated memory is still 683.7 MB. Free memory was 647.8 MB in the beginning and 646.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 09:42:59,455 INFO L168 Benchmark]: RCFGBuilder took 206.78 ms. Allocated memory is still 683.7 MB. Free memory was 646.7 MB in the beginning and 633.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-06-22 09:42:59,455 INFO L168 Benchmark]: BlockEncodingV2 took 78.56 ms. Allocated memory is still 683.7 MB. Free memory was 633.2 MB in the beginning and 627.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 09:42:59,456 INFO L168 Benchmark]: TraceAbstraction took 147.15 ms. Allocated memory is still 683.7 MB. Free memory was 627.8 MB in the beginning and 619.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 09:42:59,456 INFO L168 Benchmark]: BuchiAutomizer took 2267.59 ms. Allocated memory was 683.7 MB in the beginning and 756.5 MB in the end (delta: 72.9 MB). Free memory was 618.1 MB in the beginning and 703.2 MB in the end (delta: -85.1 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 09:42:59,460 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 8 locations, 11 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 272.51 ms. Allocated memory was 649.6 MB in the beginning and 683.7 MB in the end (delta: 34.1 MB). Free memory was 564.9 MB in the beginning and 650.6 MB in the end (delta: -85.7 MB). Peak memory consumption was 29.1 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 33.50 ms. Allocated memory is still 683.7 MB. Free memory was 650.6 MB in the beginning and 647.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.49 ms. Allocated memory is still 683.7 MB. Free memory was 647.8 MB in the beginning and 646.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 206.78 ms. Allocated memory is still 683.7 MB. Free memory was 646.7 MB in the beginning and 633.2 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.56 ms. Allocated memory is still 683.7 MB. Free memory was 633.2 MB in the beginning and 627.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 147.15 ms. Allocated memory is still 683.7 MB. Free memory was 627.8 MB in the beginning and 619.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2267.59 ms. Allocated memory was 683.7 MB in the beginning and 756.5 MB in the end (delta: 72.9 MB). Free memory was 618.1 MB in the beginning and 703.2 MB in the end (delta: -85.1 MB). There was no memory consumed. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 0 deterministic, 3 nondeterministic). One nondeterministic module has affine ranking function i and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. One nondeterministic module has affine ranking function i and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 6 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 10 SDtfs, 21 SDslu, 0 SDs, 0 SdLazy, 33 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax180 hnf97 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq148 hnf94 smp100 dnf100 smp100 tf107 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 09:42:53.093 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 09:42:59.691 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check