MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-21 22:29:53,990 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-21 22:29:53,992 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-21 22:29:54,003 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-21 22:29:54,003 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-21 22:29:54,004 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-21 22:29:54,005 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-21 22:29:54,007 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-21 22:29:54,009 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-21 22:29:54,009 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-21 22:29:54,010 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-21 22:29:54,010 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-21 22:29:54,011 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-21 22:29:54,012 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-21 22:29:54,013 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-21 22:29:54,014 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-21 22:29:54,015 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-21 22:29:54,016 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-21 22:29:54,018 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-21 22:29:54,020 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-21 22:29:54,021 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-21 22:29:54,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-21 22:29:54,024 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-21 22:29:54,024 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-21 22:29:54,024 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-21 22:29:54,025 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-21 22:29:54,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-21 22:29:54,026 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-21 22:29:54,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-21 22:29:54,027 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-21 22:29:54,028 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-21 22:29:54,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-21 22:29:54,029 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-21 22:29:54,029 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-21 22:29:54,030 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-21 22:29:54,030 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-21 22:29:54,030 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-21 22:29:54,031 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-21 22:29:54,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-21 22:29:54,032 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-21 22:29:54,046 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-21 22:29:54,046 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-21 22:29:54,047 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-21 22:29:54,048 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-21 22:29:54,048 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-21 22:29:54,048 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:29:54,048 INFO L133 SettingsManager]: * Use SBE=true [2020-06-21 22:29:54,048 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-21 22:29:54,048 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-21 22:29:54,049 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-21 22:29:54,049 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-21 22:29:54,049 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-21 22:29:54,049 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-21 22:29:54,049 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-21 22:29:54,050 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-21 22:29:54,050 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-21 22:29:54,050 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-21 22:29:54,050 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-21 22:29:54,050 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-21 22:29:54,050 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-21 22:29:54,051 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-21 22:29:54,051 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-21 22:29:54,051 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-21 22:29:54,051 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-21 22:29:54,051 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:29:54,052 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-21 22:29:54,052 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-21 22:29:54,052 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-21 22:29:54,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-21 22:29:54,078 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-21 22:29:54,091 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-21 22:29:54,095 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-21 22:29:54,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-21 22:29:54,096 INFO L276 PluginConnector]: CDTParser initialized [2020-06-21 22:29:54,097 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:29:54,187 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/ffc6489c1b714cc6a6780894a9b56fcd/FLAG95b6b0862 [2020-06-21 22:29:54,519 INFO L307 CDTParser]: Found 1 translation units. [2020-06-21 22:29:54,519 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-21 22:29:54,526 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/ffc6489c1b714cc6a6780894a9b56fcd/FLAG95b6b0862 [2020-06-21 22:29:54,938 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/ffc6489c1b714cc6a6780894a9b56fcd [2020-06-21 22:29:54,953 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-21 22:29:54,955 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-21 22:29:54,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-21 22:29:54,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-21 22:29:54,961 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-21 22:29:54,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:29:54" (1/1) ... [2020-06-21 22:29:54,966 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bf3b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:54, skipping insertion in model container [2020-06-21 22:29:54,967 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.06 10:29:54" (1/1) ... [2020-06-21 22:29:54,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-21 22:29:54,996 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-21 22:29:55,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:29:55,171 INFO L191 MainTranslator]: Completed pre-run [2020-06-21 22:29:55,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-21 22:29:55,275 INFO L195 MainTranslator]: Completed translation [2020-06-21 22:29:55,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55 WrapperNode [2020-06-21 22:29:55,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-21 22:29:55,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-21 22:29:55,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-21 22:29:55,277 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-21 22:29:55,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,317 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-21 22:29:55,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-21 22:29:55,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-21 22:29:55,318 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-21 22:29:55,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-21 22:29:55,342 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-21 22:29:55,342 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-21 22:29:55,342 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-21 22:29:55,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-21 22:29:55,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-21 22:29:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-21 22:29:55,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-21 22:29:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-21 22:29:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-06-21 22:29:55,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-06-21 22:29:55,669 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-21 22:29:55,670 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-21 22:29:55,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:29:55 BoogieIcfgContainer [2020-06-21 22:29:55,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-21 22:29:55,672 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-21 22:29:55,672 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-21 22:29:55,675 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-21 22:29:55,675 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:29:55" (1/1) ... [2020-06-21 22:29:55,691 INFO L313 BlockEncoder]: Initial Icfg 16 locations, 18 edges [2020-06-21 22:29:55,693 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-21 22:29:55,694 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-21 22:29:55,695 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-21 22:29:55,695 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-21 22:29:55,697 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-21 22:29:55,698 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-21 22:29:55,698 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-21 22:29:55,718 INFO L185 BlockEncoder]: Using Use SBE [2020-06-21 22:29:55,743 INFO L200 BlockEncoder]: SBE split 7 edges [2020-06-21 22:29:55,748 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-21 22:29:55,750 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:29:55,766 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-21 22:29:55,769 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-21 22:29:55,770 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-21 22:29:55,770 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-21 22:29:55,771 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-21 22:29:55,771 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-21 22:29:55,772 INFO L313 BlockEncoder]: Encoded RCFG 12 locations, 21 edges [2020-06-21 22:29:55,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:29:55 BasicIcfg [2020-06-21 22:29:55,772 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-21 22:29:55,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-21 22:29:55,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-21 22:29:55,776 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-21 22:29:55,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.06 10:29:54" (1/4) ... [2020-06-21 22:29:55,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc68929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:29:55, skipping insertion in model container [2020-06-21 22:29:55,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.06 10:29:55" (2/4) ... [2020-06-21 22:29:55,778 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc68929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.06 10:29:55, skipping insertion in model container [2020-06-21 22:29:55,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.06 10:29:55" (3/4) ... [2020-06-21 22:29:55,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc68929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:29:55, skipping insertion in model container [2020-06-21 22:29:55,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 21.06 10:29:55" (4/4) ... [2020-06-21 22:29:55,781 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-21 22:29:55,790 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-21 22:29:55,799 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-06-21 22:29:55,815 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-06-21 22:29:55,844 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-21 22:29:55,845 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-21 22:29:55,845 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-21 22:29:55,845 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-21 22:29:55,845 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-21 22:29:55,845 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-21 22:29:55,845 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-21 22:29:55,845 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-21 22:29:55,846 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-21 22:29:55,860 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-06-21 22:29:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-21 22:29:55,866 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:29:55,867 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-21 22:29:55,867 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:29:55,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:29:55,873 INFO L82 PathProgramCache]: Analyzing trace with hash 69203968, now seen corresponding path program 1 times [2020-06-21 22:29:55,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:29:55,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:29:55,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:55,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:29:55,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:55,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:29:56,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:29:56,038 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:29:56,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-21 22:29:56,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-21 22:29:56,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 22:29:56,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:29:56,062 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2020-06-21 22:29:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:29:56,129 INFO L93 Difference]: Finished difference Result 12 states and 21 transitions. [2020-06-21 22:29:56,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 22:29:56,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-06-21 22:29:56,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:29:56,143 INFO L225 Difference]: With dead ends: 12 [2020-06-21 22:29:56,143 INFO L226 Difference]: Without dead ends: 10 [2020-06-21 22:29:56,146 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:29:56,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-06-21 22:29:56,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-06-21 22:29:56,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-06-21 22:29:56,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 17 transitions. [2020-06-21 22:29:56,183 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 17 transitions. Word has length 5 [2020-06-21 22:29:56,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:29:56,183 INFO L480 AbstractCegarLoop]: Abstraction has 10 states and 17 transitions. [2020-06-21 22:29:56,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-21 22:29:56,183 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 17 transitions. [2020-06-21 22:29:56,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-21 22:29:56,184 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:29:56,184 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-21 22:29:56,184 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:29:56,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:29:56,185 INFO L82 PathProgramCache]: Analyzing trace with hash 69203969, now seen corresponding path program 1 times [2020-06-21 22:29:56,185 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:29:56,185 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:29:56,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:29:56,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:29:56,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:29:56,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:29:56,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-21 22:29:56,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-21 22:29:56,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-21 22:29:56,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-21 22:29:56,237 INFO L87 Difference]: Start difference. First operand 10 states and 17 transitions. Second operand 4 states. [2020-06-21 22:29:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:29:56,304 INFO L93 Difference]: Finished difference Result 24 states and 40 transitions. [2020-06-21 22:29:56,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-21 22:29:56,305 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-06-21 22:29:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:29:56,307 INFO L225 Difference]: With dead ends: 24 [2020-06-21 22:29:56,307 INFO L226 Difference]: Without dead ends: 16 [2020-06-21 22:29:56,308 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-21 22:29:56,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-06-21 22:29:56,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-06-21 22:29:56,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-06-21 22:29:56,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 23 transitions. [2020-06-21 22:29:56,313 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 23 transitions. Word has length 5 [2020-06-21 22:29:56,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:29:56,314 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 23 transitions. [2020-06-21 22:29:56,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-21 22:29:56,314 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 23 transitions. [2020-06-21 22:29:56,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-21 22:29:56,314 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:29:56,314 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-21 22:29:56,315 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:29:56,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:29:56,315 INFO L82 PathProgramCache]: Analyzing trace with hash 69203970, now seen corresponding path program 1 times [2020-06-21 22:29:56,315 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:29:56,315 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:29:56,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:29:56,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:29:56,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:29:56,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:29:56,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-21 22:29:56,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-06-21 22:29:56,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-21 22:29:56,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-21 22:29:56,344 INFO L87 Difference]: Start difference. First operand 13 states and 23 transitions. Second operand 4 states. [2020-06-21 22:29:56,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:29:56,401 INFO L93 Difference]: Finished difference Result 25 states and 40 transitions. [2020-06-21 22:29:56,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-21 22:29:56,401 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-06-21 22:29:56,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:29:56,402 INFO L225 Difference]: With dead ends: 25 [2020-06-21 22:29:56,402 INFO L226 Difference]: Without dead ends: 17 [2020-06-21 22:29:56,403 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-06-21 22:29:56,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-06-21 22:29:56,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2020-06-21 22:29:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-06-21 22:29:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2020-06-21 22:29:56,407 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 5 [2020-06-21 22:29:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:29:56,408 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-06-21 22:29:56,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-06-21 22:29:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2020-06-21 22:29:56,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-06-21 22:29:56,408 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:29:56,408 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-06-21 22:29:56,409 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:29:56,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:29:56,409 INFO L82 PathProgramCache]: Analyzing trace with hash 69204931, now seen corresponding path program 1 times [2020-06-21 22:29:56,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:29:56,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:29:56,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:29:56,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-21 22:29:56,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-21 22:29:56,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-21 22:29:56,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-06-21 22:29:56,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-06-21 22:29:56,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-06-21 22:29:56,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:29:56,429 INFO L87 Difference]: Start difference. First operand 15 states and 24 transitions. Second operand 3 states. [2020-06-21 22:29:56,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-21 22:29:56,458 INFO L93 Difference]: Finished difference Result 23 states and 35 transitions. [2020-06-21 22:29:56,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-06-21 22:29:56,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-06-21 22:29:56,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-06-21 22:29:56,459 INFO L225 Difference]: With dead ends: 23 [2020-06-21 22:29:56,459 INFO L226 Difference]: Without dead ends: 10 [2020-06-21 22:29:56,460 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-06-21 22:29:56,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-06-21 22:29:56,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-06-21 22:29:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-06-21 22:29:56,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-06-21 22:29:56,462 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2020-06-21 22:29:56,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-06-21 22:29:56,463 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-06-21 22:29:56,463 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-06-21 22:29:56,463 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-06-21 22:29:56,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-06-21 22:29:56,463 INFO L394 BasicCegarLoop]: Found error trace [2020-06-21 22:29:56,463 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-06-21 22:29:56,464 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2020-06-21 22:29:56,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-21 22:29:56,464 INFO L82 PathProgramCache]: Analyzing trace with hash 70430368, now seen corresponding path program 1 times [2020-06-21 22:29:56,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-21 22:29:56,464 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-21 22:29:56,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-21 22:29:56,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-21 22:29:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:29:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-21 22:29:56,513 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2020-06-21 22:29:56,535 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-06-21 22:29:56,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.06 10:29:56 BasicIcfg [2020-06-21 22:29:56,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-21 22:29:56,539 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-21 22:29:56,539 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-21 22:29:56,542 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-21 22:29:56,542 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-21 22:29:56,542 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-21 22:29:56,542 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-21 22:29:56,543 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-21 22:29:56,543 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-21 22:29:56,543 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-21 22:29:56,543 INFO L168 Benchmark]: Toolchain (without parser) took 1589.76 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 564.2 MB in the beginning and 568.9 MB in the end (delta: -4.7 MB). Peak memory consumption was 40.9 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,545 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-21 22:29:56,545 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.23 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 564.2 MB in the beginning and 660.5 MB in the end (delta: -96.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.55 ms. Allocated memory is still 695.2 MB. Free memory was 660.5 MB in the beginning and 658.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,547 INFO L168 Benchmark]: Boogie Preprocessor took 23.67 ms. Allocated memory is still 695.2 MB. Free memory was 658.3 MB in the beginning and 657.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,547 INFO L168 Benchmark]: RCFGBuilder took 329.85 ms. Allocated memory is still 695.2 MB. Free memory was 657.3 MB in the beginning and 639.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,548 INFO L168 Benchmark]: BlockEncodingV2 took 100.51 ms. Allocated memory is still 695.2 MB. Free memory was 639.2 MB in the beginning and 632.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,549 INFO L168 Benchmark]: TraceAbstraction took 765.07 ms. Allocated memory is still 695.2 MB. Free memory was 632.7 MB in the beginning and 570.0 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,549 INFO L168 Benchmark]: BuchiAutomizer took 4.15 ms. Allocated memory is still 695.2 MB. Free memory was 570.0 MB in the beginning and 568.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-21 22:29:56,553 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 16 locations, 18 edges - StatisticsResult: Encoded RCFG 12 locations, 21 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 585.8 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 319.23 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 564.2 MB in the beginning and 660.5 MB in the end (delta: -96.3 MB). Peak memory consumption was 28.9 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 40.55 ms. Allocated memory is still 695.2 MB. Free memory was 660.5 MB in the beginning and 658.3 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 23.67 ms. Allocated memory is still 695.2 MB. Free memory was 658.3 MB in the beginning and 657.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 329.85 ms. Allocated memory is still 695.2 MB. Free memory was 657.3 MB in the beginning and 639.2 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 100.51 ms. Allocated memory is still 695.2 MB. Free memory was 639.2 MB in the beginning and 632.7 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. * TraceAbstraction took 765.07 ms. Allocated memory is still 695.2 MB. Free memory was 632.7 MB in the beginning and 570.0 MB in the end (delta: 62.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.15 ms. Allocated memory is still 695.2 MB. Free memory was 570.0 MB in the beginning and 568.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L10] int i = __VERIFIER_nondet_int(); [L11] int a[10]; [L12] 0 <= i && i < 10 && a[i] >= 0 [L12] EXPR a[i] [L12] 0 <= i && i < 10 && a[i] >= 0 [L12] COND TRUE 0 <= i && i < 10 && a[i] >= 0 [L13] i = __VERIFIER_nondet_int() [L14] a[i] = 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. UNSAFE Result, 0.7s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 59 SDslu, 11 SDs, 0 SdLazy, 74 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 292 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-21 22:29:51.671 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-21 22:29:56.788 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check