YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:08:25,351 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:08:25,353 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:08:25,364 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:08:25,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:08:25,365 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:08:25,366 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:08:25,368 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:08:25,369 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:08:25,370 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:08:25,371 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:08:25,371 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:08:25,372 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:08:25,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:08:25,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:08:25,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:08:25,375 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:08:25,377 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:08:25,379 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:08:25,380 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:08:25,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:08:25,382 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:08:25,384 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:08:25,384 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:08:25,385 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:08:25,385 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:08:25,386 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:08:25,387 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:08:25,387 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:08:25,388 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:08:25,388 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:08:25,389 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:08:25,390 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:08:25,390 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:08:25,391 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:08:25,391 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:08:25,391 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:08:25,392 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:08:25,393 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:08:25,393 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf [2020-06-22 01:08:25,407 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:08:25,407 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:08:25,408 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:08:25,408 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:08:25,408 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:08:25,409 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:08:25,409 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:08:25,409 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:08:25,409 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:08:25,409 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:08:25,409 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:08:25,410 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:08:25,410 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:08:25,410 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:08:25,410 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:25,410 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:08:25,410 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:08:25,410 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:08:25,411 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:08:25,411 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:08:25,411 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:08:25,411 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:08:25,411 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:08:25,411 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:08:25,412 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:08:25,412 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:08:25,412 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:08:25,412 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:08:25,412 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:08:25,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:08:25,451 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:08:25,454 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:08:25,455 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:08:25,456 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:08:25,456 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:08:25,517 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/522fe2060d95426eb86bb0eec7f21dbf/FLAG55c1530d1 [2020-06-22 01:08:25,854 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:08:25,854 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2020-06-22 01:08:25,861 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/522fe2060d95426eb86bb0eec7f21dbf/FLAG55c1530d1 [2020-06-22 01:08:26,255 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/522fe2060d95426eb86bb0eec7f21dbf [2020-06-22 01:08:26,267 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:08:26,268 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:08:26,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:08:26,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:08:26,273 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:08:26,275 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@509e5a73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:08:26,305 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:08:26,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:08:26,473 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:08:26,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:08:26,564 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:08:26,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26 WrapperNode [2020-06-22 01:08:26,565 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:08:26,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:08:26,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:08:26,566 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:08:26,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:08:26,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:08:26,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:08:26,601 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:08:26,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:08:26,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:08:26,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:08:26,619 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:08:26,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (1/1) ... No working directory specified, using /export/starexec/sandbox/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 01:08:26,687 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-06-22 01:08:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-06-22 01:08:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-06-22 01:08:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-06-22 01:08:26,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:08:26,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:08:26,845 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:08:26,846 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2020-06-22 01:08:26,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26 BoogieIcfgContainer [2020-06-22 01:08:26,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:08:26,848 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:08:26,848 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:08:26,851 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:08:26,851 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26" (1/1) ... [2020-06-22 01:08:26,868 INFO L313 BlockEncoder]: Initial Icfg 23 locations, 29 edges [2020-06-22 01:08:26,870 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:08:26,871 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:08:26,871 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:08:26,871 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:08:26,873 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:08:26,874 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:08:26,874 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:08:26,893 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:08:26,915 INFO L200 BlockEncoder]: SBE split 7 edges [2020-06-22 01:08:26,920 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 01:08:26,921 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:26,929 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 01:08:26,931 INFO L70 RemoveSinkStates]: Removed 11 edges and 5 locations by removing sink states [2020-06-22 01:08:26,933 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:08:26,933 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:26,938 INFO L100 BaseMinimizeStates]: Removed 2 edges and 1 locations by large block encoding [2020-06-22 01:08:26,939 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:08:26,939 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:08:26,940 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:08:26,940 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:08:26,941 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:08:26,941 INFO L313 BlockEncoder]: Encoded RCFG 16 locations, 24 edges [2020-06-22 01:08:26,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:26 BasicIcfg [2020-06-22 01:08:26,942 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:08:26,943 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:08:26,943 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:08:26,946 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:08:26,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:08:26" (1/4) ... [2020-06-22 01:08:26,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524debee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (2/4) ... [2020-06-22 01:08:26,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524debee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26" (3/4) ... [2020-06-22 01:08:26,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@524debee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:26, skipping insertion in model container [2020-06-22 01:08:26,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:26" (4/4) ... [2020-06-22 01:08:26,950 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:08:26,963 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:08:26,971 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:08:26,987 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:08:27,016 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:08:27,017 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:08:27,017 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:08:27,017 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:08:27,017 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:08:27,018 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:08:27,018 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:08:27,018 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:08:27,018 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:08:27,035 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-06-22 01:08:27,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:08:27,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-06-22 01:08:27,103 INFO L451 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: true [2020-06-22 01:08:27,103 INFO L448 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2020-06-22 01:08:27,103 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 33) no Hoare annotation was computed. [2020-06-22 01:08:27,103 INFO L448 ceAbstractionStarter]: For program point isEvenEXIT(lines 26 34) no Hoare annotation was computed. [2020-06-22 01:08:27,104 INFO L448 ceAbstractionStarter]: For program point L27(lines 27 33) no Hoare annotation was computed. [2020-06-22 01:08:27,104 INFO L448 ceAbstractionStarter]: For program point isEvenFINAL(lines 26 34) no Hoare annotation was computed. [2020-06-22 01:08:27,104 INFO L451 ceAbstractionStarter]: At program point isEvenENTRY(lines 26 34) the Hoare annotation is: true [2020-06-22 01:08:27,104 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 23) no Hoare annotation was computed. [2020-06-22 01:08:27,105 INFO L448 ceAbstractionStarter]: For program point isOddFINAL(lines 16 24) no Hoare annotation was computed. [2020-06-22 01:08:27,105 INFO L451 ceAbstractionStarter]: At program point isOddENTRY(lines 16 24) the Hoare annotation is: true [2020-06-22 01:08:27,105 INFO L451 ceAbstractionStarter]: At program point L22(line 22) the Hoare annotation is: true [2020-06-22 01:08:27,105 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-06-22 01:08:27,106 INFO L448 ceAbstractionStarter]: For program point isOddEXIT(lines 16 24) no Hoare annotation was computed. [2020-06-22 01:08:27,106 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2020-06-22 01:08:27,106 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:08:27,106 INFO L451 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: true [2020-06-22 01:08:27,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:27 BasicIcfg [2020-06-22 01:08:27,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:08:27,111 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:08:27,111 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:08:27,114 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:08:27,115 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,115 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:08:26" (1/5) ... [2020-06-22 01:08:27,116 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@daffbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,116 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:08:26" (2/5) ... [2020-06-22 01:08:27,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@daffbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,117 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:08:26" (3/5) ... [2020-06-22 01:08:27,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@daffbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,118 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:08:26" (4/5) ... [2020-06-22 01:08:27,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@daffbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:08:27, skipping insertion in model container [2020-06-22 01:08:27,118 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:08:27,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:08:27" (5/5) ... [2020-06-22 01:08:27,120 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:08:27,148 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:08:27,148 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:08:27,148 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:08:27,148 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:08:27,149 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:08:27,149 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:08:27,149 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:08:27,149 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:08:27,149 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:08:27,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-06-22 01:08:27,173 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 01:08:27,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:27,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:27,180 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:08:27,181 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:27,181 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:08:27,181 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states. [2020-06-22 01:08:27,183 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 01:08:27,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:27,183 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:27,183 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:08:27,183 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:27,188 INFO L794 eck$LassoCheckResult]: Stem: 11#ULTIMATE.startENTRYtrue [102] ULTIMATE.startENTRY-->L42: Formula: (<= 0 v_ULTIMATE.start_main_~n~0_9) InVars {} OutVars{ULTIMATE.start_main_~mod~0=v_ULTIMATE.start_main_~mod~0_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~mod~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 9#L42true [61] L42-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_8) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_2|} AuxVars[] AssignedVars[isOdd_#in~n]< 16#isOddENTRYtrue [2020-06-22 01:08:27,189 INFO L796 eck$LassoCheckResult]: Loop: 16#isOddENTRYtrue [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 14#L17true [85] L17-->L19: Formula: (> 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 10#L19true [87] L19-->L22: Formula: (> 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 4#L22true [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 5#isEvenENTRYtrue [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 3#L27true [97] L27-->L29: Formula: (> 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 6#L29true [99] L29-->L32: Formula: (< 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 17#L32true [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 16#isOddENTRYtrue [2020-06-22 01:08:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,195 INFO L82 PathProgramCache]: Analyzing trace with hash 4184, now seen corresponding path program 1 times [2020-06-22 01:08:27,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1950276259, now seen corresponding path program 1 times [2020-06-22 01:08:27,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:27,316 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 01:08:27,318 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:27,318 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:27,322 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 01:08:27,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:27,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:27,338 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-06-22 01:08:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:27,389 INFO L93 Difference]: Finished difference Result 21 states and 30 transitions. [2020-06-22 01:08:27,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:27,393 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 30 transitions. [2020-06-22 01:08:27,398 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-06-22 01:08:27,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 12 states and 16 transitions. [2020-06-22 01:08:27,404 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2020-06-22 01:08:27,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2020-06-22 01:08:27,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2020-06-22 01:08:27,405 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:27,405 INFO L706 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2020-06-22 01:08:27,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2020-06-22 01:08:27,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-06-22 01:08:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-06-22 01:08:27,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2020-06-22 01:08:27,435 INFO L729 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-06-22 01:08:27,435 INFO L609 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2020-06-22 01:08:27,435 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:08:27,435 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2020-06-22 01:08:27,436 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-06-22 01:08:27,436 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:27,436 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:27,437 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:08:27,437 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:27,437 INFO L794 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRY [102] ULTIMATE.startENTRY-->L42: Formula: (<= 0 v_ULTIMATE.start_main_~n~0_9) InVars {} OutVars{ULTIMATE.start_main_~mod~0=v_ULTIMATE.start_main_~mod~0_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~mod~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 46#L42 [61] L42-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_8) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_2|} AuxVars[] AssignedVars[isOdd_#in~n]< 47#isOddENTRY [2020-06-22 01:08:27,438 INFO L796 eck$LassoCheckResult]: Loop: 47#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 52#L17 [85] L17-->L19: Formula: (> 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 48#L19 [87] L19-->L22: Formula: (> 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 50#L22 [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 56#isEvenENTRY [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 53#L27 [97] L27-->L29: Formula: (> 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 54#L29 [100] L29-->L32: Formula: (> 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 49#L32 [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 47#isOddENTRY [2020-06-22 01:08:27,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,438 INFO L82 PathProgramCache]: Analyzing trace with hash 4184, now seen corresponding path program 2 times [2020-06-22 01:08:27,438 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1950276228, now seen corresponding path program 1 times [2020-06-22 01:08:27,445 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,445 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,446 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:08:27,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:27,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:27,458 INFO L82 PathProgramCache]: Analyzing trace with hash 905113299, now seen corresponding path program 1 times [2020-06-22 01:08:27,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:27,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:27,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:27,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:27,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:27,489 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 01:08:27,489 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:27,489 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:27,632 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:27,633 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:27,633 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:27,633 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:27,634 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:27,634 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:27,634 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:27,634 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:27,634 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 01:08:27,634 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:27,635 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:27,652 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 01:08:27,659 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 01:08:27,662 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 01:08:27,665 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 01:08:27,667 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 01:08:27,681 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 01:08:27,683 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 01:08:27,687 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 01:08:27,731 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:27,732 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 01:08:27,738 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,738 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,747 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,748 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_~n=0} Honda state: {isEven_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:27,779 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,780 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,783 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,784 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=0} Honda state: {isEven_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:27,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,816 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,816 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret0=0} Honda state: {isOdd_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:27,843 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,843 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,847 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,847 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:27,874 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,874 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/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 01:08:27,906 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:27,906 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,968 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,968 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=-6} Honda state: {isOdd_#in~n=-6} Generalized eigenvectors: [{isOdd_#in~n=0}, {isOdd_#in~n=-2}, {isOdd_#in~n=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/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 01:08:27,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:27,996 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:27,999 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:27,999 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:28,026 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,026 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,030 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,030 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret1=0} Honda state: {isEven_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:28,056 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,056 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,060 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,060 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_~n=0} Honda state: {isOdd_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 01:08:28,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:28,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:28,085 INFO L87 Difference]: Start difference. First operand 11 states and 15 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-06-22 01:08:28,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:28,144 INFO L93 Difference]: Finished difference Result 17 states and 23 transitions. [2020-06-22 01:08:28,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 01:08:28,145 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 23 transitions. [2020-06-22 01:08:28,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-06-22 01:08:28,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 23 transitions. [2020-06-22 01:08:28,147 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 17 [2020-06-22 01:08:28,147 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2020-06-22 01:08:28,148 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2020-06-22 01:08:28,148 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:28,148 INFO L706 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2020-06-22 01:08:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2020-06-22 01:08:28,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 13. [2020-06-22 01:08:28,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-06-22 01:08:28,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2020-06-22 01:08:28,150 INFO L729 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-06-22 01:08:28,150 INFO L609 BuchiCegarLoop]: Abstraction has 13 states and 17 transitions. [2020-06-22 01:08:28,150 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:08:28,151 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 17 transitions. [2020-06-22 01:08:28,151 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2020-06-22 01:08:28,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:28,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:28,152 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 01:08:28,152 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:28,152 INFO L794 eck$LassoCheckResult]: Stem: 91#ULTIMATE.startENTRY [102] ULTIMATE.startENTRY-->L42: Formula: (<= 0 v_ULTIMATE.start_main_~n~0_9) InVars {} OutVars{ULTIMATE.start_main_~mod~0=v_ULTIMATE.start_main_~mod~0_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~mod~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 86#L42 [61] L42-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_8) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_2|} AuxVars[] AssignedVars[isOdd_#in~n]< 87#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 92#L17 [86] L17-->L19: Formula: (< 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 88#L19 [2020-06-22 01:08:28,153 INFO L796 eck$LassoCheckResult]: Loop: 88#L19 [87] L19-->L22: Formula: (> 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 90#L22 [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 98#isEvenENTRY [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 95#L27 [97] L27-->L29: Formula: (> 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 96#L29 [100] L29-->L32: Formula: (> 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 89#L32 [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 93#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 94#L17 [85] L17-->L19: Formula: (> 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 88#L19 [2020-06-22 01:08:28,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,153 INFO L82 PathProgramCache]: Analyzing trace with hash 4023111, now seen corresponding path program 1 times [2020-06-22 01:08:28,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,154 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,161 INFO L82 PathProgramCache]: Analyzing trace with hash -1537851204, now seen corresponding path program 2 times [2020-06-22 01:08:28,161 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,161 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,172 INFO L82 PathProgramCache]: Analyzing trace with hash 423034370, now seen corresponding path program 1 times [2020-06-22 01:08:28,172 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,172 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,173 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:08:28,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,193 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:08:28,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:28,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-22 01:08:28,321 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:28,322 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:28,322 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:28,322 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:28,322 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:28,322 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:28,322 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:28,322 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:28,322 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2020-06-22 01:08:28,323 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:28,323 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:28,324 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 01:08:28,328 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 01:08:28,338 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 01:08:28,340 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 01:08:28,344 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 01:08:28,348 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 01:08:28,351 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 01:08:28,410 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:28,410 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 01:08:28,415 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,415 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,419 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,420 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret0=0} Honda state: {isOdd_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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) [2020-06-22 01:08:28,450 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,450 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 No working directory specified, using /export/starexec/sandbox/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) [2020-06-22 01:08:28,486 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:28,486 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:28,660 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,661 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=2, isOdd_~n=-5} Honda state: {isOdd_#in~n=2, isOdd_~n=-5} Generalized eigenvectors: [{isOdd_#in~n=-3, isOdd_~n=-2}, {isOdd_#in~n=1, isOdd_~n=0}, {isOdd_#in~n=-7, isOdd_~n=0}] Lambdas: [1, 7, 0] Nus: [1, 1] No working directory specified, using /export/starexec/sandbox/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 01:08:28,690 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,690 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,694 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,694 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:28,724 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,724 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,728 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,729 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret1=0} Honda state: {isEven_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:28,757 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,757 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,761 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,761 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_~n=0} Honda state: {isEven_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:28,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,793 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,793 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/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 01:08:28,823 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:28,823 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:28,827 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:28,827 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=0} Honda state: {isEven_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 01:08:28,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-22 01:08:28,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-22 01:08:28,852 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. cyclomatic complexity: 5 Second operand 3 states. [2020-06-22 01:08:28,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:28,869 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2020-06-22 01:08:28,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-22 01:08:28,869 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2020-06-22 01:08:28,870 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2020-06-22 01:08:28,871 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 19 transitions. [2020-06-22 01:08:28,871 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2020-06-22 01:08:28,871 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2020-06-22 01:08:28,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 19 transitions. [2020-06-22 01:08:28,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:28,872 INFO L706 BuchiCegarLoop]: Abstraction has 15 states and 19 transitions. [2020-06-22 01:08:28,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 19 transitions. [2020-06-22 01:08:28,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-06-22 01:08:28,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-06-22 01:08:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2020-06-22 01:08:28,874 INFO L729 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-06-22 01:08:28,875 INFO L609 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2020-06-22 01:08:28,875 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2020-06-22 01:08:28,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states and 18 transitions. [2020-06-22 01:08:28,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-06-22 01:08:28,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:28,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:28,876 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 01:08:28,877 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:28,878 INFO L794 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY [102] ULTIMATE.startENTRY-->L42: Formula: (<= 0 v_ULTIMATE.start_main_~n~0_9) InVars {} OutVars{ULTIMATE.start_main_~mod~0=v_ULTIMATE.start_main_~mod~0_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~mod~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 122#L42 [61] L42-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_8) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_2|} AuxVars[] AssignedVars[isOdd_#in~n]< 123#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 128#L17 [86] L17-->L19: Formula: (< 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 124#L19 [2020-06-22 01:08:28,878 INFO L796 eck$LassoCheckResult]: Loop: 124#L19 [88] L19-->L22: Formula: (< 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 126#L22 [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 134#isEvenENTRY [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 131#L27 [97] L27-->L29: Formula: (> 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 132#L29 [100] L29-->L32: Formula: (> 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 125#L32 [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 129#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 130#L17 [86] L17-->L19: Formula: (< 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 124#L19 [2020-06-22 01:08:28,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,879 INFO L82 PathProgramCache]: Analyzing trace with hash 4023111, now seen corresponding path program 2 times [2020-06-22 01:08:28,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,886 INFO L82 PathProgramCache]: Analyzing trace with hash 204959132, now seen corresponding path program 1 times [2020-06-22 01:08:28,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,887 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:08:28,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:28,910 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 01:08:28,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:28,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:28,911 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 01:08:28,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:28,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:28,912 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. cyclomatic complexity: 5 Second operand 5 states. [2020-06-22 01:08:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:28,954 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2020-06-22 01:08:28,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 01:08:28,955 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2020-06-22 01:08:28,956 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 16 [2020-06-22 01:08:28,957 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 20 states and 23 transitions. [2020-06-22 01:08:28,957 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2020-06-22 01:08:28,957 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2020-06-22 01:08:28,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 23 transitions. [2020-06-22 01:08:28,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:28,958 INFO L706 BuchiCegarLoop]: Abstraction has 20 states and 23 transitions. [2020-06-22 01:08:28,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 23 transitions. [2020-06-22 01:08:28,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 17. [2020-06-22 01:08:28,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-06-22 01:08:28,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-06-22 01:08:28,961 INFO L729 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-06-22 01:08:28,961 INFO L609 BuchiCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-06-22 01:08:28,961 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2020-06-22 01:08:28,961 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 20 transitions. [2020-06-22 01:08:28,961 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 13 [2020-06-22 01:08:28,962 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:28,962 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:28,962 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-06-22 01:08:28,962 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:28,963 INFO L794 eck$LassoCheckResult]: Stem: 171#ULTIMATE.startENTRY [102] ULTIMATE.startENTRY-->L42: Formula: (<= 0 v_ULTIMATE.start_main_~n~0_9) InVars {} OutVars{ULTIMATE.start_main_~mod~0=v_ULTIMATE.start_main_~mod~0_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~mod~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 166#L42 [61] L42-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_8) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_2|} AuxVars[] AssignedVars[isOdd_#in~n]< 167#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 172#L17 [86] L17-->L19: Formula: (< 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 168#L19 [2020-06-22 01:08:28,963 INFO L796 eck$LassoCheckResult]: Loop: 168#L19 [88] L19-->L22: Formula: (< 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 170#L22 [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 182#isEvenENTRY [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 173#L27 [98] L27-->L29: Formula: (< 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 174#L29 [99] L29-->L32: Formula: (< 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 169#L32 [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 175#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 176#L17 [86] L17-->L19: Formula: (< 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 168#L19 [2020-06-22 01:08:28,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,963 INFO L82 PathProgramCache]: Analyzing trace with hash 4023111, now seen corresponding path program 3 times [2020-06-22 01:08:28,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,963 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,970 INFO L82 PathProgramCache]: Analyzing trace with hash 205852862, now seen corresponding path program 1 times [2020-06-22 01:08:28,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,972 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:08:28,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:28,980 INFO L82 PathProgramCache]: Analyzing trace with hash -2128228860, now seen corresponding path program 1 times [2020-06-22 01:08:28,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:28,980 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:28,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:28,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:28,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:29,107 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:29,108 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:29,108 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:29,108 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:29,108 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:29,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:29,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:29,108 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:29,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 01:08:29,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:29,109 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:29,110 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 01:08:29,112 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 01:08:29,120 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 01:08:29,123 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 01:08:29,125 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 01:08:29,127 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 01:08:29,128 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 01:08:29,175 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:29,175 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/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 01:08:29,183 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:29,183 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:29,186 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:29,186 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:29,228 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:29,228 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:29,260 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:29,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:34,884 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 01:08:34,887 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:34,887 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:34,888 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:34,888 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:34,888 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 01:08:34,888 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 01:08:34,888 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:34,888 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:34,888 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration5_Loop [2020-06-22 01:08:34,888 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:34,889 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:34,890 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 01:08:34,893 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 01:08:34,899 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 01:08:34,901 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 01:08:34,903 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 01:08:34,905 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 01:08:34,906 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 01:08:34,946 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:34,952 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 01:08:34,954 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 01:08:34,955 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:34,955 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:34,956 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:34,956 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:34,956 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:34,958 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:34,958 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:34,961 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2020-06-22 01:08:34,961 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 01:08:34,962 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 01:08:34,962 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 01:08:34,962 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 01:08:34,962 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 01:08:34,962 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 01:08:34,963 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 01:08:34,963 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 01:08:34,969 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 01:08:34,976 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 01:08:34,976 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 01:08:34,978 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 01:08:34,978 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 01:08:34,978 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 01:08:34,978 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(isOdd_~n) = 1*isOdd_~n Supporting invariants [] [2020-06-22 01:08:34,979 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 01:08:34,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:35,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:35,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 01:08:35,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:35,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:35,056 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2020-06-22 01:08:35,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:35,130 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 01:08:35,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:35,203 INFO L137 LoopCannibalizer]: termination argument not suffcient for all loop shiftings [2020-06-22 01:08:35,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:35,215 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2020-06-22 01:08:35,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 01:08:35,223 INFO L98 LoopCannibalizer]: 7 predicates before loop cannibalization 7 predicates after loop cannibalization [2020-06-22 01:08:35,226 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 7 loop predicates [2020-06-22 01:08:35,227 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 17 states and 20 transitions. cyclomatic complexity: 4 Second operand 8 states. [2020-06-22 01:08:35,462 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 17 states and 20 transitions. cyclomatic complexity: 4. Second operand 8 states. Result 178 states and 224 transitions. Complement of second has 127 states. [2020-06-22 01:08:35,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 12 states 1 stem states 10 non-accepting loop states 1 accepting loop states [2020-06-22 01:08:35,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-06-22 01:08:35,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 39 transitions. [2020-06-22 01:08:35,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 4 letters. Loop has 8 letters. [2020-06-22 01:08:35,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:35,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 12 letters. Loop has 8 letters. [2020-06-22 01:08:35,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:35,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states and 39 transitions. Stem has 4 letters. Loop has 16 letters. [2020-06-22 01:08:35,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 01:08:35,474 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 224 transitions. [2020-06-22 01:08:35,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 01:08:35,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 90 states and 104 transitions. [2020-06-22 01:08:35,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 19 [2020-06-22 01:08:35,483 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2020-06-22 01:08:35,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 90 states and 104 transitions. [2020-06-22 01:08:35,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-06-22 01:08:35,484 INFO L706 BuchiCegarLoop]: Abstraction has 90 states and 104 transitions. [2020-06-22 01:08:35,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states and 104 transitions. [2020-06-22 01:08:35,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 29. [2020-06-22 01:08:35,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-06-22 01:08:35,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2020-06-22 01:08:35,488 INFO L729 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2020-06-22 01:08:35,488 INFO L609 BuchiCegarLoop]: Abstraction has 29 states and 34 transitions. [2020-06-22 01:08:35,488 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2020-06-22 01:08:35,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 34 transitions. [2020-06-22 01:08:35,489 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2020-06-22 01:08:35,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:08:35,489 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:08:35,489 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:35,489 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-22 01:08:35,490 INFO L794 eck$LassoCheckResult]: Stem: 591#ULTIMATE.startENTRY [102] ULTIMATE.startENTRY-->L42: Formula: (<= 0 v_ULTIMATE.start_main_~n~0_9) InVars {} OutVars{ULTIMATE.start_main_~mod~0=v_ULTIMATE.start_main_~mod~0_5, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_6|, ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_9, ULTIMATE.start_main_#t~ret3=|v_ULTIMATE.start_main_#t~ret3_6|, ULTIMATE.start_main_~result~0=v_ULTIMATE.start_main_~result~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~mod~0, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#res, ULTIMATE.start_main_~n~0, ULTIMATE.start_main_#t~ret3, ULTIMATE.start_main_~result~0] 584#L42 [61] L42-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_2| v_ULTIMATE.start_main_~n~0_8) InVars {ULTIMATE.start_main_~n~0=v_ULTIMATE.start_main_~n~0_8} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_2|} AuxVars[] AssignedVars[isOdd_#in~n]< 585#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 597#L17 [86] L17-->L19: Formula: (< 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 586#L19 [88] L19-->L22: Formula: (< 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 587#L22 [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 612#isEvenENTRY [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 603#L27 [98] L27-->L29: Formula: (< 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 604#L29 [99] L29-->L32: Formula: (< 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 590#L32 [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 598#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 599#L17 [85] L17-->L19: Formula: (> 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 594#L19 [2020-06-22 01:08:35,490 INFO L796 eck$LassoCheckResult]: Loop: 594#L19 [87] L19-->L22: Formula: (> 1 v_isOdd_~n_3) InVars {isOdd_~n=v_isOdd_~n_3} OutVars{isOdd_~n=v_isOdd_~n_3} AuxVars[] AssignedVars[] 601#L22 [55] L22-->isEvenENTRY: Formula: (= |v_isEven_#in~nInParam_1| (+ v_isOdd_~n_7 (- 1))) InVars {isOdd_~n=v_isOdd_~n_7} OutVars{isEven_#in~n=|v_isEven_#in~nInParam_1|} AuxVars[] AssignedVars[isEven_#in~n]< 605#isEvenENTRY [56] isEvenENTRY-->L27: Formula: (= v_isEven_~n_1 |v_isEven_#in~n_1|) InVars {isEven_#in~n=|v_isEven_#in~n_1|} OutVars{isEven_~n=v_isEven_~n_1, isEven_#in~n=|v_isEven_#in~n_1|} AuxVars[] AssignedVars[isEven_~n] 600#L27 [97] L27-->L29: Formula: (> 0 v_isEven_~n_3) InVars {isEven_~n=v_isEven_~n_3} OutVars{isEven_~n=v_isEven_~n_3} AuxVars[] AssignedVars[] 602#L29 [100] L29-->L32: Formula: (> 1 v_isEven_~n_5) InVars {isEven_~n=v_isEven_~n_5} OutVars{isEven_~n=v_isEven_~n_5} AuxVars[] AssignedVars[] 593#L32 [72] L32-->isOddENTRY: Formula: (= |v_isOdd_#in~nInParam_1| (+ v_isEven_~n_7 (- 1))) InVars {isEven_~n=v_isEven_~n_7} OutVars{isOdd_#in~n=|v_isOdd_#in~nInParam_1|} AuxVars[] AssignedVars[isOdd_#in~n]< 608#isOddENTRY [71] isOddENTRY-->L17: Formula: (= v_isOdd_~n_5 |v_isOdd_#in~n_1|) InVars {isOdd_#in~n=|v_isOdd_#in~n_1|} OutVars{isOdd_#in~n=|v_isOdd_#in~n_1|, isOdd_~n=v_isOdd_~n_5} AuxVars[] AssignedVars[isOdd_~n] 592#L17 [85] L17-->L19: Formula: (> 0 v_isOdd_~n_1) InVars {isOdd_~n=v_isOdd_~n_1} OutVars{isOdd_~n=v_isOdd_~n_1} AuxVars[] AssignedVars[] 594#L19 [2020-06-22 01:08:35,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:35,490 INFO L82 PathProgramCache]: Analyzing trace with hash -2128228861, now seen corresponding path program 1 times [2020-06-22 01:08:35,491 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:35,491 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:35,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:35,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:08:35,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:08:35,522 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:08:35,522 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-06-22 01:08:35,522 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-06-22 01:08:35,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:08:35,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1537851204, now seen corresponding path program 3 times [2020-06-22 01:08:35,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:08:35,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:08:35,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:08:35,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:08:35,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:08:35,613 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 01:08:35,613 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 01:08:35,614 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 01:08:35,614 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 01:08:35,614 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 01:08:35,614 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:35,614 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 01:08:35,614 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 01:08:35,614 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration6_Loop [2020-06-22 01:08:35,614 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 01:08:35,614 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 01:08:35,615 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 01:08:35,622 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 01:08:35,623 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 01:08:35,625 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 01:08:35,626 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 01:08:35,628 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 01:08:35,630 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 01:08:35,658 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 01:08:35,658 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:35,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:35,661 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:35,693 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 01:08:35,693 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,072 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,072 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#in~n=-8, isOdd_~n=-15} Honda state: {isOdd_#in~n=-8, isOdd_~n=-15} Generalized eigenvectors: [{isOdd_#in~n=0, isOdd_~n=0}, {isOdd_#in~n=-2, isOdd_~n=-2}, {isOdd_#in~n=-7, isOdd_~n=0}] Lambdas: [10, 1, 0] Nus: [0, 0] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:36,099 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:36,099 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,103 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,103 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#in~n=0} Honda state: {isEven_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:36,129 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:36,129 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,132 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,132 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#res=0} Honda state: {isOdd_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:36,157 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:36,158 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,161 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,161 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isOdd_#t~ret0=0} Honda state: {isOdd_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:36,186 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:36,186 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,190 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,190 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#t~ret1=0} Honda state: {isEven_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:36,215 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:36,216 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,219 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,219 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_~n=0} Honda state: {isEven_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /export/starexec/sandbox/solver/bin/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:08:36,245 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 01:08:36,245 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 01:08:36,248 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2020-06-22 01:08:36,248 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {isEven_#res=0} Honda state: {isEven_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2020-06-22 01:08:36,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-06-22 01:08:36,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-06-22 01:08:36,272 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. cyclomatic complexity: 7 Second operand 5 states. [2020-06-22 01:08:36,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:08:36,296 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2020-06-22 01:08:36,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-06-22 01:08:36,299 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 14 transitions. [2020-06-22 01:08:36,299 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:08:36,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2020-06-22 01:08:36,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:08:36,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:08:36,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:08:36,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:08:36,300 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:08:36,300 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:08:36,300 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:08:36,300 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2020-06-22 01:08:36,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:08:36,301 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:08:36,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:08:36,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:08:36 BasicIcfg [2020-06-22 01:08:36,307 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:08:36,307 INFO L168 Benchmark]: Toolchain (without parser) took 10039.58 ms. Allocated memory was 649.6 MB in the beginning and 752.9 MB in the end (delta: 103.3 MB). Free memory was 563.6 MB in the beginning and 536.6 MB in the end (delta: 27.0 MB). Peak memory consumption was 130.3 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,309 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 01:08:36,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.83 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 563.6 MB in the beginning and 648.3 MB in the end (delta: -84.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,310 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.60 ms. Allocated memory is still 682.6 MB. Free memory was 648.3 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,310 INFO L168 Benchmark]: Boogie Preprocessor took 17.60 ms. Allocated memory is still 682.6 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,311 INFO L168 Benchmark]: RCFGBuilder took 229.09 ms. Allocated memory is still 682.6 MB. Free memory was 644.4 MB in the beginning and 628.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,311 INFO L168 Benchmark]: BlockEncodingV2 took 93.81 ms. Allocated memory is still 682.6 MB. Free memory was 628.6 MB in the beginning and 621.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,312 INFO L168 Benchmark]: TraceAbstraction took 167.40 ms. Allocated memory is still 682.6 MB. Free memory was 621.0 MB in the beginning and 610.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,312 INFO L168 Benchmark]: BuchiAutomizer took 9196.11 ms. Allocated memory was 682.6 MB in the beginning and 752.9 MB in the end (delta: 70.3 MB). Free memory was 610.1 MB in the beginning and 536.6 MB in the end (delta: 73.6 MB). Peak memory consumption was 143.8 MB. Max. memory is 50.3 GB. [2020-06-22 01:08:36,316 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 23 locations, 29 edges - StatisticsResult: Encoded RCFG 16 locations, 24 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 295.83 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 563.6 MB in the beginning and 648.3 MB in the end (delta: -84.8 MB). Peak memory consumption was 29.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.60 ms. Allocated memory is still 682.6 MB. Free memory was 648.3 MB in the beginning and 647.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 17.60 ms. Allocated memory is still 682.6 MB. Free memory was 647.3 MB in the beginning and 646.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 229.09 ms. Allocated memory is still 682.6 MB. Free memory was 644.4 MB in the beginning and 628.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 93.81 ms. Allocated memory is still 682.6 MB. Free memory was 628.6 MB in the beginning and 621.0 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. * TraceAbstraction took 167.40 ms. Allocated memory is still 682.6 MB. Free memory was 621.0 MB in the beginning and 610.1 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 9196.11 ms. Allocated memory was 682.6 MB in the beginning and 752.9 MB in the end (delta: 70.3 MB). Free memory was 610.1 MB in the beginning and 536.6 MB in the end (delta: 73.6 MB). Peak memory consumption was 143.8 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 16 locations, 0 error locations. SAFE Result, 0.1s 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=16occurred 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (5 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function n and consists of 12 locations. 5 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.1s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 8.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 5. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 70 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 29 states and ocurred in iteration 5. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 51 SDtfs, 61 SDslu, 108 SDs, 0 SdLazy, 231 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT1 conc2 concLT0 SILN1 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq169 hnf92 smp100 dnf100 smp100 tf109 neg100 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 20 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 6.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:08:23.061 ----------------------------------------------- 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/sandbox/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/sandbox/tmp -i /export/starexec/sandbox/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 01:08:36.547 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check