NO Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:20:07,609 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:20:07,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:20:07,622 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:20:07,623 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:20:07,623 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:20:07,625 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:20:07,626 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:20:07,628 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:20:07,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:20:07,629 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:20:07,630 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:20:07,630 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:20:07,631 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:20:07,632 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:20:07,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:20:07,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:20:07,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:20:07,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:20:07,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:20:07,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:20:07,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:20:07,643 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:20:07,643 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:20:07,643 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:20:07,644 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:20:07,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:20:07,645 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:20:07,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:20:07,646 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:20:07,647 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:20:07,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:20:07,648 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:20:07,649 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:20:07,649 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:20:07,649 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:20:07,650 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:20:07,651 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:20:07,651 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:20:07,651 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 08:20:07,666 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:20:07,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:20:07,667 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:20:07,667 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:20:07,667 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:20:07,667 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:20:07,667 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:20:07,668 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:20:07,668 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:20:07,668 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:20:07,668 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:20:07,668 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:20:07,668 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:20:07,669 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:20:07,669 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:07,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:20:07,669 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:20:07,669 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:20:07,669 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:20:07,670 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:20:07,670 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:20:07,670 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:20:07,670 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:20:07,670 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:20:07,670 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:20:07,670 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:20:07,671 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:20:07,671 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:20:07,671 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:20:07,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:20:07,710 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:20:07,713 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:20:07,714 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:20:07,715 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:20:07,715 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:20:07,781 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/bf11a23fb0384398881a94840d13ba2c/FLAG4c584e018 [2020-06-22 08:20:08,109 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:20:08,111 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:20:08,117 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/bf11a23fb0384398881a94840d13ba2c/FLAG4c584e018 [2020-06-22 08:20:08,523 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/bf11a23fb0384398881a94840d13ba2c [2020-06-22 08:20:08,535 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:20:08,536 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:20:08,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:20:08,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:20:08,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:20:08,542 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,545 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44731908 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08, skipping insertion in model container [2020-06-22 08:20:08,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:20:08,570 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:20:08,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:20:08,729 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:20:08,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:20:08,815 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:20:08,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08 WrapperNode [2020-06-22 08:20:08,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:20:08,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:20:08,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:20:08,816 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:20:08,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,831 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:20:08,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:20:08,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:20:08,852 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:20:08,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,865 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (1/1) ... [2020-06-22 08:20:08,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:20:08,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:20:08,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:20:08,873 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:20:08,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (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 08:20:08,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:20:08,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:20:09,083 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:20:09,083 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 08:20:09,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:20:09 BoogieIcfgContainer [2020-06-22 08:20:09,085 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:20:09,085 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:20:09,086 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:20:09,088 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:20:09,089 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:20:09" (1/1) ... [2020-06-22 08:20:09,104 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2020-06-22 08:20:09,106 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:20:09,106 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:20:09,107 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:20:09,107 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:20:09,109 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:20:09,110 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:20:09,110 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:20:09,126 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:20:09,141 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 08:20:09,146 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:20:09,147 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:20:09,165 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 08:20:09,168 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 08:20:09,169 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:20:09,169 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:20:09,170 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:20:09,170 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:20:09,170 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 8 edges [2020-06-22 08:20:09,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:20:09 BasicIcfg [2020-06-22 08:20:09,171 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:20:09,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:20:09,172 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:20:09,175 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:20:09,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:20:08" (1/4) ... [2020-06-22 08:20:09,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687f88f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (2/4) ... [2020-06-22 08:20:09,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687f88f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:20:09" (3/4) ... [2020-06-22 08:20:09,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687f88f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:20:09" (4/4) ... [2020-06-22 08:20:09,179 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:20:09,196 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:20:09,207 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 08:20:09,226 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 08:20:09,256 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:20:09,257 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:20:09,257 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:20:09,257 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:20:09,257 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:20:09,257 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:20:09,257 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:20:09,258 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:20:09,258 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:20:09,273 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 08:20:09,278 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 08:20:09,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-06-22 08:20:09,330 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 21) no Hoare annotation was computed. [2020-06-22 08:20:09,330 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 12 22) no Hoare annotation was computed. [2020-06-22 08:20:09,330 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 08:20:09,330 INFO L448 ceAbstractionStarter]: For program point L12(lines 12 22) no Hoare annotation was computed. [2020-06-22 08:20:09,331 INFO L451 ceAbstractionStarter]: At program point L11-2(lines 11 24) the Hoare annotation is: true [2020-06-22 08:20:09,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:20:09 BasicIcfg [2020-06-22 08:20:09,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:20:09,340 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:20:09,340 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:20:09,343 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:20:09,344 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:20:09,344 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 08:20:08" (1/5) ... [2020-06-22 08:20:09,345 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@83f01d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,345 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:20:09,345 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:20:08" (2/5) ... [2020-06-22 08:20:09,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@83f01d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,346 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:20:09,346 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:20:09" (3/5) ... [2020-06-22 08:20:09,346 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@83f01d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,347 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:20:09,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:20:09" (4/5) ... [2020-06-22 08:20:09,347 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@83f01d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:20:09, skipping insertion in model container [2020-06-22 08:20:09,347 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 08:20:09,347 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:20:09" (5/5) ... [2020-06-22 08:20:09,349 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:20:09,377 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:20:09,377 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 08:20:09,378 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 08:20:09,378 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:20:09,378 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:20:09,378 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:20:09,378 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 08:20:09,378 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:20:09,378 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 08:20:09,382 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 08:20:09,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:20:09,399 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:09,399 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:09,404 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:20:09,404 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:20:09,405 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 08:20:09,405 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states. [2020-06-22 08:20:09,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-06-22 08:20:09,406 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:09,406 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:09,406 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 08:20:09,406 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:20:09,411 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 7#L11-2true [2020-06-22 08:20:09,412 INFO L796 eck$LassoCheckResult]: Loop: 7#L11-2true [45] L11-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 5#L12true [34] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~w~0_10 v_ULTIMATE.start_main_~i~0_15) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 6#L16-2true [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 7#L11-2true [2020-06-22 08:20:09,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:09,418 INFO L82 PathProgramCache]: Analyzing trace with hash 62, now seen corresponding path program 1 times [2020-06-22 08:20:09,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:09,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:09,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:09,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:09,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:09,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:09,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:09,491 INFO L82 PathProgramCache]: Analyzing trace with hash 74128, now seen corresponding path program 1 times [2020-06-22 08:20:09,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:09,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:09,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:09,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:09,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:09,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:09,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:09,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:09,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1891379, now seen corresponding path program 1 times [2020-06-22 08:20:09,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:09,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:09,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:09,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:09,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:09,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:09,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:09,565 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:20:09,566 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:20:09,566 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:20:09,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:20:09,567 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:20:09,567 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:09,567 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:20:09,567 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:20:09,567 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:20:09,568 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:20:09,568 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:20:09,587 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 08:20:09,598 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 08:20:09,606 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 08:20:09,699 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:20:09,700 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 08:20:09,705 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:09,706 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:09,738 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:09,738 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 08:20:09,744 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:09,744 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:09,771 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:09,771 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 08:20:09,780 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:09,780 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 08:20:09,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:20:09,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:09,846 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:20:09,848 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:20:09,848 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:20:09,848 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:20:09,848 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:20:09,848 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:20:09,848 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:20:09,849 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:20:09,849 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:20:09,849 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2020-06-22 08:20:09,849 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:20:09,849 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:20:09,851 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 08:20:09,856 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 08:20:09,860 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 08:20:09,936 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:20:09,942 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:20:09,944 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 08:20:09,945 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:20:09,946 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:20:09,946 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:20:09,946 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:20:09,951 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:20:09,951 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:20:09,960 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:20:09,960 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 08:20:09,961 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:20:09,961 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:20:09,961 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:20:09,962 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:20:09,964 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:20:09,964 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:20:09,972 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:20:09,973 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 08:20:09,974 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:20:09,974 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:20:09,975 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:20:09,975 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:20:09,975 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:20:09,976 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:20:09,976 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:20:09,988 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:20:09,998 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:20:09,998 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2020-06-22 08:20:10,000 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:20:10,001 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:20:10,001 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:20:10,001 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 08:20:10,003 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:20:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:10,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:20:10,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:20:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:10,053 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:20:10,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:20:10,094 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 08:20:10,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:10,157 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:20:10,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:20:10,167 INFO L98 LoopCannibalizer]: 4 predicates before loop cannibalization 4 predicates after loop cannibalization [2020-06-22 08:20:10,172 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 4 loop predicates [2020-06-22 08:20:10,174 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 5 states. Second operand 4 states. [2020-06-22 08:20:10,341 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 5 states.. Second operand 4 states. Result 46 states and 73 transitions. Complement of second has 14 states. [2020-06-22 08:20:10,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 5 non-accepting loop states 2 accepting loop states [2020-06-22 08:20:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-06-22 08:20:10,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 43 transitions. [2020-06-22 08:20:10,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 43 transitions. Stem has 1 letters. Loop has 3 letters. [2020-06-22 08:20:10,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:20:10,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 43 transitions. Stem has 4 letters. Loop has 3 letters. [2020-06-22 08:20:10,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:20:10,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 43 transitions. Stem has 1 letters. Loop has 6 letters. [2020-06-22 08:20:10,350 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:20:10,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 73 transitions. [2020-06-22 08:20:10,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-06-22 08:20:10,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 26 states and 42 transitions. [2020-06-22 08:20:10,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2020-06-22 08:20:10,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-06-22 08:20:10,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 42 transitions. [2020-06-22 08:20:10,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:20:10,369 INFO L706 BuchiCegarLoop]: Abstraction has 26 states and 42 transitions. [2020-06-22 08:20:10,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 42 transitions. [2020-06-22 08:20:10,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 18. [2020-06-22 08:20:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-06-22 08:20:10,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2020-06-22 08:20:10,402 INFO L729 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-06-22 08:20:10,402 INFO L609 BuchiCegarLoop]: Abstraction has 18 states and 28 transitions. [2020-06-22 08:20:10,402 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 08:20:10,403 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 28 transitions. [2020-06-22 08:20:10,404 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 11 [2020-06-22 08:20:10,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:10,404 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:10,405 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:20:10,405 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-06-22 08:20:10,405 INFO L794 eck$LassoCheckResult]: Stem: 119#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 120#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 127#L12 [2020-06-22 08:20:10,405 INFO L796 eck$LassoCheckResult]: Loop: 127#L12 [34] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~w~0_10 v_ULTIMATE.start_main_~i~0_15) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 116#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 129#L11-2 [45] L11-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 127#L12 [2020-06-22 08:20:10,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:10,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 1 times [2020-06-22 08:20:10,406 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:10,406 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:10,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:10,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:10,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:10,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:10,413 INFO L82 PathProgramCache]: Analyzing trace with hash 63688, now seen corresponding path program 2 times [2020-06-22 08:20:10,413 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:10,413 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:10,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:10,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:10,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:10,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:10,423 INFO L82 PathProgramCache]: Analyzing trace with hash 58662585, now seen corresponding path program 1 times [2020-06-22 08:20:10,423 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:10,424 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:10,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:10,425 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:20:10,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:10,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:10,474 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:20:10,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:20:10,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 08:20:10,501 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:20:10,501 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:20:10,501 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:20:10,502 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:20:10,502 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:20:10,502 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:10,502 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:20:10,502 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:20:10,502 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 08:20:10,502 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:20:10,502 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:20:10,504 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 08:20:10,508 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 08:20:10,512 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 08:20:10,593 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:20:10,594 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 08:20:10,600 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:10,600 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:10,628 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:10,629 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 08:20:10,634 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:10,634 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:10,662 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:10,662 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 08:20:10,668 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:10,668 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 08:20:10,704 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:20:10,705 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:10,833 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 08:20:10,836 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:20:10,837 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:20:10,837 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:20:10,837 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:20:10,837 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 08:20:10,837 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 08:20:10,837 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:20:10,838 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:20:10,838 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 08:20:10,838 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:20:10,838 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:20:10,840 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 08:20:10,843 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 08:20:10,846 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 08:20:10,905 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:20:10,906 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 08:20:10,906 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 08:20:10,907 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:20:10,907 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:20:10,907 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:20:10,907 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:20:10,909 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:20:10,909 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:20:10,914 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:20:10,914 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 08:20:10,915 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:20:10,915 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:20:10,915 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:20:10,915 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:20:10,917 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-06-22 08:20:10,917 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-06-22 08:20:10,923 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 08:20:10,923 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 08:20:10,923 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 08:20:10,924 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 08:20:10,924 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 08:20:10,924 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 08:20:10,924 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 08:20:10,925 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 08:20:10,925 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 08:20:10,931 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 08:20:10,937 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 08:20:10,937 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 08:20:10,937 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 08:20:10,938 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 08:20:10,938 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 08:20:10,938 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 08:20:10,938 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 08:20:10,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:10,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 08:20:10,957 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:20:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:10,965 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 08:20:10,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 08:20:10,973 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 08:20:10,974 INFO L98 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2020-06-22 08:20:10,974 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 08:20:10,974 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-06-22 08:20:11,057 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 18 states and 28 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 130 states and 184 transitions. Complement of second has 39 states. [2020-06-22 08:20:11,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-06-22 08:20:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 08:20:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2020-06-22 08:20:11,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2020-06-22 08:20:11,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:20:11,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2020-06-22 08:20:11,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:20:11,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2020-06-22 08:20:11,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 08:20:11,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 184 transitions. [2020-06-22 08:20:11,068 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 73 [2020-06-22 08:20:11,070 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 88 states and 131 transitions. [2020-06-22 08:20:11,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 32 [2020-06-22 08:20:11,070 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 54 [2020-06-22 08:20:11,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 88 states and 131 transitions. [2020-06-22 08:20:11,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:20:11,071 INFO L706 BuchiCegarLoop]: Abstraction has 88 states and 131 transitions. [2020-06-22 08:20:11,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states and 131 transitions. [2020-06-22 08:20:11,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 48. [2020-06-22 08:20:11,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-06-22 08:20:11,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 78 transitions. [2020-06-22 08:20:11,078 INFO L729 BuchiCegarLoop]: Abstraction has 48 states and 78 transitions. [2020-06-22 08:20:11,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 08:20:11,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 08:20:11,082 INFO L87 Difference]: Start difference. First operand 48 states and 78 transitions. Second operand 4 states. [2020-06-22 08:20:11,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:20:11,127 INFO L93 Difference]: Finished difference Result 23 states and 34 transitions. [2020-06-22 08:20:11,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 08:20:11,130 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 34 transitions. [2020-06-22 08:20:11,130 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2020-06-22 08:20:11,131 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 23 states and 34 transitions. [2020-06-22 08:20:11,131 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-06-22 08:20:11,131 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2020-06-22 08:20:11,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 34 transitions. [2020-06-22 08:20:11,132 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:20:11,132 INFO L706 BuchiCegarLoop]: Abstraction has 23 states and 34 transitions. [2020-06-22 08:20:11,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 34 transitions. [2020-06-22 08:20:11,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2020-06-22 08:20:11,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-06-22 08:20:11,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2020-06-22 08:20:11,134 INFO L729 BuchiCegarLoop]: Abstraction has 21 states and 31 transitions. [2020-06-22 08:20:11,134 INFO L609 BuchiCegarLoop]: Abstraction has 21 states and 31 transitions. [2020-06-22 08:20:11,135 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 08:20:11,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 31 transitions. [2020-06-22 08:20:11,135 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-06-22 08:20:11,135 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:11,136 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:11,136 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:20:11,136 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 08:20:11,136 INFO L794 eck$LassoCheckResult]: Stem: 411#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 412#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 418#L12 [2020-06-22 08:20:11,136 INFO L796 eck$LassoCheckResult]: Loop: 418#L12 [43] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_11) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} AuxVars[] AssignedVars[] 419#L16 [32] L16-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~w~0_6 v_ULTIMATE.start_main_~i~0_8) (= 0 (+ v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 415#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 428#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 418#L12 [2020-06-22 08:20:11,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 2 times [2020-06-22 08:20:11,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:11,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,143 INFO L82 PathProgramCache]: Analyzing trace with hash 2236510, now seen corresponding path program 1 times [2020-06-22 08:20:11,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,144 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:20:11,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:11,162 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 08:20:11,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:20:11,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 08:20:11,163 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:20:11,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 08:20:11,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 08:20:11,164 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. cyclomatic complexity: 13 Second operand 4 states. [2020-06-22 08:20:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:20:11,206 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2020-06-22 08:20:11,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-06-22 08:20:11,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 43 transitions. [2020-06-22 08:20:11,209 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-06-22 08:20:11,210 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 31 states and 42 transitions. [2020-06-22 08:20:11,210 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-06-22 08:20:11,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 22 [2020-06-22 08:20:11,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 42 transitions. [2020-06-22 08:20:11,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 08:20:11,210 INFO L706 BuchiCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-06-22 08:20:11,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 42 transitions. [2020-06-22 08:20:11,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2020-06-22 08:20:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-06-22 08:20:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2020-06-22 08:20:11,213 INFO L729 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-06-22 08:20:11,214 INFO L609 BuchiCegarLoop]: Abstraction has 27 states and 37 transitions. [2020-06-22 08:20:11,214 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 08:20:11,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 27 states and 37 transitions. [2020-06-22 08:20:11,214 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 15 [2020-06-22 08:20:11,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:11,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:11,215 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:20:11,215 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 08:20:11,215 INFO L794 eck$LassoCheckResult]: Stem: 477#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 478#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 487#L12 [2020-06-22 08:20:11,216 INFO L796 eck$LassoCheckResult]: Loop: 487#L12 [43] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_11) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} AuxVars[] AssignedVars[] 499#L16 [44] L16-->L16-2: Formula: (and (>= v_ULTIMATE.start_main_~w~0_7 v_ULTIMATE.start_main_~i~0_10) (= v_ULTIMATE.start_main_~i~0_9 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 474#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 483#L11-2 [45] L11-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 487#L12 [2020-06-22 08:20:11,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,216 INFO L82 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 3 times [2020-06-22 08:20:11,216 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,217 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:11,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,222 INFO L82 PathProgramCache]: Analyzing trace with hash 2248041, now seen corresponding path program 1 times [2020-06-22 08:20:11,222 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,222 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,223 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:20:11,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:11,233 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 08:20:11,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:20:11,233 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 08:20:11,234 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:20:11,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:20:11,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:20:11,234 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. cyclomatic complexity: 13 Second operand 3 states. [2020-06-22 08:20:11,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:20:11,250 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2020-06-22 08:20:11,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:20:11,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 40 transitions. [2020-06-22 08:20:11,255 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 19 [2020-06-22 08:20:11,256 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 29 states and 39 transitions. [2020-06-22 08:20:11,256 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2020-06-22 08:20:11,256 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2020-06-22 08:20:11,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 39 transitions. [2020-06-22 08:20:11,257 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:20:11,257 INFO L706 BuchiCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-06-22 08:20:11,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 39 transitions. [2020-06-22 08:20:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20. [2020-06-22 08:20:11,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-06-22 08:20:11,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2020-06-22 08:20:11,259 INFO L729 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-06-22 08:20:11,259 INFO L609 BuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2020-06-22 08:20:11,260 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 08:20:11,260 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2020-06-22 08:20:11,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 17 [2020-06-22 08:20:11,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:11,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:11,261 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:20:11,261 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-06-22 08:20:11,261 INFO L794 eck$LassoCheckResult]: Stem: 538#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 539#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 548#L12 [2020-06-22 08:20:11,261 INFO L796 eck$LassoCheckResult]: Loop: 548#L12 [43] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_11) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} AuxVars[] AssignedVars[] 554#L16 [44] L16-->L16-2: Formula: (and (>= v_ULTIMATE.start_main_~w~0_7 v_ULTIMATE.start_main_~i~0_10) (= v_ULTIMATE.start_main_~i~0_9 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_10, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_9, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 537#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 549#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 548#L12 [2020-06-22 08:20:11,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 4 times [2020-06-22 08:20:11,262 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,262 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:11,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash 2248042, now seen corresponding path program 1 times [2020-06-22 08:20:11,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,269 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:20:11,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:11,279 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 08:20:11,279 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:20:11,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 08:20:11,280 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:20:11,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 08:20:11,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 08:20:11,281 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand 3 states. [2020-06-22 08:20:11,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:20:11,293 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-06-22 08:20:11,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 08:20:11,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 31 transitions. [2020-06-22 08:20:11,296 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 16 [2020-06-22 08:20:11,296 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 20 states and 23 transitions. [2020-06-22 08:20:11,296 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-06-22 08:20:11,297 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-06-22 08:20:11,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2020-06-22 08:20:11,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:20:11,297 INFO L706 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-06-22 08:20:11,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2020-06-22 08:20:11,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-06-22 08:20:11,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 08:20:11,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-06-22 08:20:11,299 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-06-22 08:20:11,299 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-06-22 08:20:11,299 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 08:20:11,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-06-22 08:20:11,300 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-06-22 08:20:11,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:11,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:11,300 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:20:11,301 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1] [2020-06-22 08:20:11,301 INFO L794 eck$LassoCheckResult]: Stem: 587#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 588#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 594#L12 [2020-06-22 08:20:11,301 INFO L796 eck$LassoCheckResult]: Loop: 594#L12 [43] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_11) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} AuxVars[] AssignedVars[] 585#L16 [32] L16-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~w~0_6 v_ULTIMATE.start_main_~i~0_8) (= 0 (+ v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 586#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 598#L11-2 [45] L11-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 589#L12 [34] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~w~0_10 v_ULTIMATE.start_main_~i~0_15) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 590#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 591#L11-2 [45] L11-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 594#L12 [2020-06-22 08:20:11,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,302 INFO L82 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 5 times [2020-06-22 08:20:11,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:11,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,308 INFO L82 PathProgramCache]: Analyzing trace with hash -2091603220, now seen corresponding path program 1 times [2020-06-22 08:20:11,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,309 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:20:11,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 08:20:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 08:20:11,338 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 08:20:11,338 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 08:20:11,338 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 08:20:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 08:20:11,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 08:20:11,339 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. cyclomatic complexity: 5 Second operand 4 states. [2020-06-22 08:20:11,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 08:20:11,360 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2020-06-22 08:20:11,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 08:20:11,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 26 transitions. [2020-06-22 08:20:11,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 14 [2020-06-22 08:20:11,363 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 24 states and 26 transitions. [2020-06-22 08:20:11,363 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2020-06-22 08:20:11,363 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 24 [2020-06-22 08:20:11,363 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 26 transitions. [2020-06-22 08:20:11,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 08:20:11,364 INFO L706 BuchiCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-06-22 08:20:11,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 26 transitions. [2020-06-22 08:20:11,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 10. [2020-06-22 08:20:11,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-22 08:20:11,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-06-22 08:20:11,365 INFO L729 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-06-22 08:20:11,365 INFO L609 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-06-22 08:20:11,365 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2020-06-22 08:20:11,365 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2020-06-22 08:20:11,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2020-06-22 08:20:11,366 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 08:20:11,366 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 08:20:11,380 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 08:20:11,380 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1] [2020-06-22 08:20:11,381 INFO L794 eck$LassoCheckResult]: Stem: 633#ULTIMATE.startENTRY [31] ULTIMATE.startENTRY-->L11-2: Formula: (and (= v_ULTIMATE.start_main_~w~0_1 5) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_1} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~w~0] 634#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 640#L12 [2020-06-22 08:20:11,382 INFO L796 eck$LassoCheckResult]: Loop: 640#L12 [43] L12-->L16: Formula: (>= (+ v_ULTIMATE.start_main_~i~0_16 v_ULTIMATE.start_main_~w~0_11) 0) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_16, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_11} AuxVars[] AssignedVars[] 635#L16 [32] L16-->L16-2: Formula: (and (< v_ULTIMATE.start_main_~w~0_6 v_ULTIMATE.start_main_~i~0_8) (= 0 (+ v_ULTIMATE.start_main_~i~0_6 v_ULTIMATE.start_main_~i~0_8 1))) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_8, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 636#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 639#L11-2 [45] L11-2-->L12: Formula: (> 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 637#L12 [34] L12-->L16-2: Formula: (and (= 1 (+ v_ULTIMATE.start_main_~i~0_15 v_ULTIMATE.start_main_~i~0_13)) (< (+ v_ULTIMATE.start_main_~w~0_10 v_ULTIMATE.start_main_~i~0_15) 0)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_15, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_13, ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_10} AuxVars[] AssignedVars[ULTIMATE.start_main_~i~0] 638#L16-2 [38] L16-2-->L11-2: Formula: (= v_ULTIMATE.start_main_~w~0_8 (+ v_ULTIMATE.start_main_~w~0_9 1)) InVars {ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_9} OutVars{ULTIMATE.start_main_~w~0=v_ULTIMATE.start_main_~w~0_8} AuxVars[] AssignedVars[ULTIMATE.start_main_~w~0] 642#L11-2 [46] L11-2-->L12: Formula: (< 0 v_ULTIMATE.start_main_~i~0_12) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} OutVars{ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_12} AuxVars[] AssignedVars[] 640#L12 [2020-06-22 08:20:11,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1968, now seen corresponding path program 6 times [2020-06-22 08:20:11,383 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,383 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:11,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,389 INFO L82 PathProgramCache]: Analyzing trace with hash -2091603219, now seen corresponding path program 1 times [2020-06-22 08:20:11,389 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,390 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,391 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 08:20:11,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:20:11,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1367576482, now seen corresponding path program 1 times [2020-06-22 08:20:11,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:20:11,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:20:11,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:20:11,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:20:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:20:11,450 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:20:11,450 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:20:11,450 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:20:11,450 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:20:11,451 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:20:11,451 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:11,451 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:20:11,451 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:20:11,451 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Loop [2020-06-22 08:20:11,451 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:20:11,451 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:20:11,452 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 08:20:11,462 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 08:20:11,465 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 08:20:11,506 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:20:11,506 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:20:11,509 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,509 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 08:20:11,538 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:20:11,539 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,567 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,567 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~w~0=0} Honda state: {ULTIMATE.start_main_~i~0=2, ULTIMATE.start_main_~w~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=1, ULTIMATE.start_main_~w~0=1}, {ULTIMATE.start_main_~i~0=1, ULTIMATE.start_main_~w~0=1}, {ULTIMATE.start_main_~i~0=0, ULTIMATE.start_main_~w~0=0}] Lambdas: [1, 1, 8] Nus: [0, 0] 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 08:20:11,594 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,594 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,621 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,621 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 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 08:20:11,625 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,625 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,651 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,652 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: [] [2020-06-22 08:20:11,663 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 08:20:11,663 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 08:20:11,663 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 08:20:11,663 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 08:20:11,663 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 08:20:11,663 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:11,664 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 08:20:11,664 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 08:20:11,664 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration7_Lasso [2020-06-22 08:20:11,664 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 08:20:11,664 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 08:20:11,666 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 08:20:11,668 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 08:20:11,669 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 08:20:11,672 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 08:20:11,683 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 08:20:11,734 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 08:20:11,735 INFO L412 LassoAnalysis]: Checking for nontermination... 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 08:20:11,740 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,741 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,744 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,744 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 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 08:20:11,772 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,772 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,776 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,776 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 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:11,802 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,803 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,829 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,830 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_6=1} Honda state: {v_rep~unnamed0~0~true_6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:11,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,839 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:11,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 08:20:11,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,903 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,903 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~w~0=0, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~w~0=5, ULTIMATE.start_main_~i~0=14} Generalized eigenvectors: [{ULTIMATE.start_main_~w~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~w~0=0, ULTIMATE.start_main_~i~0=0}, {ULTIMATE.start_main_~w~0=2, ULTIMATE.start_main_~i~0=2}] Lambdas: [0, 2, 1] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:20:11,936 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 08:20:11,936 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 08:20:11,963 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 08:20:11,963 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_6=0} Honda state: {v_rep~unnamed0~0~false_6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 08:20:11,973 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:11,974 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:11,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:11,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:11,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:11,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:11,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:11,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:11,977 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:11,977 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:11,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 08:20:11 BasicIcfg [2020-06-22 08:20:11,989 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:20:11,989 INFO L168 Benchmark]: Toolchain (without parser) took 3453.93 ms. Allocated memory was 649.6 MB in the beginning and 760.7 MB in the end (delta: 111.1 MB). Free memory was 558.8 MB in the beginning and 634.6 MB in the end (delta: -75.8 MB). Peak memory consumption was 35.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,991 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:20:11,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.69 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 558.8 MB in the beginning and 660.5 MB in the end (delta: -101.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,992 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.48 ms. Allocated memory is still 693.6 MB. Free memory was 660.5 MB in the beginning and 659.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,992 INFO L168 Benchmark]: Boogie Preprocessor took 20.11 ms. Allocated memory is still 693.6 MB. Free memory was 659.4 MB in the beginning and 656.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,993 INFO L168 Benchmark]: RCFGBuilder took 212.73 ms. Allocated memory is still 693.6 MB. Free memory was 656.5 MB in the beginning and 642.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,993 INFO L168 Benchmark]: BlockEncodingV2 took 85.39 ms. Allocated memory is still 693.6 MB. Free memory was 642.9 MB in the beginning and 637.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,994 INFO L168 Benchmark]: TraceAbstraction took 167.73 ms. Allocated memory is still 693.6 MB. Free memory was 637.5 MB in the beginning and 628.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,995 INFO L168 Benchmark]: BuchiAutomizer took 2648.74 ms. Allocated memory was 693.6 MB in the beginning and 760.7 MB in the end (delta: 67.1 MB). Free memory was 627.8 MB in the beginning and 634.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 60.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:20:11,999 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 5 locations, 8 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 580.4 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 278.69 ms. Allocated memory was 649.6 MB in the beginning and 693.6 MB in the end (delta: 44.0 MB). Free memory was 558.8 MB in the beginning and 660.5 MB in the end (delta: -101.6 MB). Peak memory consumption was 29.5 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 35.48 ms. Allocated memory is still 693.6 MB. Free memory was 660.5 MB in the beginning and 659.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 20.11 ms. Allocated memory is still 693.6 MB. Free memory was 659.4 MB in the beginning and 656.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 212.73 ms. Allocated memory is still 693.6 MB. Free memory was 656.5 MB in the beginning and 642.9 MB in the end (delta: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 85.39 ms. Allocated memory is still 693.6 MB. Free memory was 642.9 MB in the beginning and 637.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 167.73 ms. Allocated memory is still 693.6 MB. Free memory was 637.5 MB in the beginning and 628.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 2648.74 ms. Allocated memory was 693.6 MB in the beginning and 760.7 MB in the end (delta: 67.1 MB). Free memory was 627.8 MB in the beginning and 634.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 60.3 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false * 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: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 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=5occurred 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 7 terminating modules (5 trivial, 0 deterministic, 2 nondeterministic) and one nonterminating remainder module.One nondeterministic module has affine ranking function -1 * i and consists of 9 locations. One nondeterministic module has affine ranking function i and consists of 5 locations. 5 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 1.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 80 StatesRemovedByMinimization, 7 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 27 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 29 SDtfs, 58 SDslu, 20 SDs, 0 SdLazy, 230 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital21 mio100 ax157 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf105 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 12]: Nontermination argument in form of an infinite program execution. [2020-06-22 08:20:12,008 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,008 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,009 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,009 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,009 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,010 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,010 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,010 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,010 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,011 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,011 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,011 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,012 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,012 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,012 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,013 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,013 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,013 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false [2020-06-22 08:20:12,014 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~true [2020-06-22 08:20:12,014 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~unnamed0~0~false Nontermination argument in form of an infinite execution {|ULTIMATE.start_main_#t~nondet0|=0, ~unnamed0~0~true=1, ULTIMATE.start_main_~i~0=0, ~unnamed0~0~false=0, |ULTIMATE.start_main_#res|=0, ULTIMATE.start_main_~w~0=0} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f663c08=0, ~unnamed0~0~true=1, \result=0, w=5, ~unnamed0~0~false=0, i=14} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f663c08=0, ~unnamed0~0~true=1, \result=0, w=7, ~unnamed0~0~false=0, i=16} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f663c08=0, ~unnamed0~0~true=1, \result=0, w=9, ~unnamed0~0~false=0, i=18} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f663c08=0, ~unnamed0~0~true=1, \result=0, w=11, ~unnamed0~0~false=0, i=20} {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f663c08=0, ~unnamed0~0~true=1, \result=0, w=13, ~unnamed0~0~false=0, i=22} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 2, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 12]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] int w; [L8] i = __VERIFIER_nondet_int() [L9] w = 5 [L11] COND TRUE i != 0 Loop: [L12] COND FALSE !(i < -w) [L16] COND TRUE i > w [L17] i = i+1 [L18] i = i*(-1) [L23] w = w+1 [L11] COND TRUE i != 0 [L12] COND TRUE i < -w [L13] i = i-1 [L14] i = i*(-1) [L23] w = w+1 [L11] COND TRUE i != 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 08:20:05.311 ----------------------------------------------- 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 08:20:12.239 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check