11.84/5.73 MAYBE 11.84/5.73 11.84/5.73 Ultimate: Cannot open display: 11.84/5.73 This is Ultimate 0.1.24-8dc7c08-m 11.84/5.73 [2019-03-28 12:47:00,815 INFO L170 SettingsManager]: Resetting all preferences to default values... 11.84/5.73 [2019-03-28 12:47:00,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 11.84/5.73 [2019-03-28 12:47:00,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 11.84/5.73 [2019-03-28 12:47:00,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 11.84/5.73 [2019-03-28 12:47:00,831 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 11.84/5.73 [2019-03-28 12:47:00,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 11.84/5.73 [2019-03-28 12:47:00,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 11.84/5.73 [2019-03-28 12:47:00,835 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 11.84/5.73 [2019-03-28 12:47:00,836 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,836 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 11.84/5.73 [2019-03-28 12:47:00,837 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 11.84/5.73 [2019-03-28 12:47:00,838 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 11.84/5.73 [2019-03-28 12:47:00,839 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 11.84/5.73 [2019-03-28 12:47:00,840 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 11.84/5.73 [2019-03-28 12:47:00,841 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 11.84/5.73 [2019-03-28 12:47:00,842 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 11.84/5.73 [2019-03-28 12:47:00,844 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 11.84/5.73 [2019-03-28 12:47:00,846 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 11.84/5.73 [2019-03-28 12:47:00,847 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 11.84/5.73 [2019-03-28 12:47:00,848 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 11.84/5.73 [2019-03-28 12:47:00,850 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,850 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,850 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 11.84/5.73 [2019-03-28 12:47:00,851 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 11.84/5.73 [2019-03-28 12:47:00,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 11.84/5.73 [2019-03-28 12:47:00,852 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 11.84/5.73 [2019-03-28 12:47:00,853 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 11.84/5.73 [2019-03-28 12:47:00,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 11.84/5.73 [2019-03-28 12:47:00,855 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 11.84/5.73 [2019-03-28 12:47:00,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 11.84/5.73 [2019-03-28 12:47:00,857 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,857 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 11.84/5.73 [2019-03-28 12:47:00,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 11.84/5.73 [2019-03-28 12:47:00,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 11.84/5.73 [2019-03-28 12:47:00,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 11.84/5.73 [2019-03-28 12:47:00,859 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 11.84/5.73 [2019-03-28 12:47:00,873 INFO L110 SettingsManager]: Loading preferences was successful 11.84/5.73 [2019-03-28 12:47:00,874 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 11.84/5.73 [2019-03-28 12:47:00,875 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 11.84/5.73 [2019-03-28 12:47:00,875 INFO L133 SettingsManager]: * Rewrite not-equals=true 11.84/5.73 [2019-03-28 12:47:00,875 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 11.84/5.73 [2019-03-28 12:47:00,875 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 11.84/5.73 [2019-03-28 12:47:00,875 INFO L133 SettingsManager]: * Use SBE=true 11.84/5.73 [2019-03-28 12:47:00,876 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 11.84/5.73 [2019-03-28 12:47:00,876 INFO L133 SettingsManager]: * Use old map elimination=false 11.84/5.73 [2019-03-28 12:47:00,876 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 11.84/5.73 [2019-03-28 12:47:00,876 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 11.84/5.73 [2019-03-28 12:47:00,876 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 11.84/5.73 [2019-03-28 12:47:00,877 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 11.84/5.73 [2019-03-28 12:47:00,877 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 11.84/5.73 [2019-03-28 12:47:00,877 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 11.84/5.73 [2019-03-28 12:47:00,877 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 11.84/5.73 [2019-03-28 12:47:00,877 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 11.84/5.73 [2019-03-28 12:47:00,877 INFO L133 SettingsManager]: * Check division by zero=IGNORE 11.84/5.73 [2019-03-28 12:47:00,878 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 11.84/5.73 [2019-03-28 12:47:00,878 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 11.84/5.73 [2019-03-28 12:47:00,878 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 11.84/5.73 [2019-03-28 12:47:00,878 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 11.84/5.73 [2019-03-28 12:47:00,878 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 11.84/5.73 [2019-03-28 12:47:00,878 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 11.84/5.73 [2019-03-28 12:47:00,879 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.84/5.73 [2019-03-28 12:47:00,879 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 11.84/5.73 [2019-03-28 12:47:00,879 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 11.84/5.73 [2019-03-28 12:47:00,879 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 11.84/5.73 [2019-03-28 12:47:00,879 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 11.84/5.73 [2019-03-28 12:47:00,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 11.84/5.73 [2019-03-28 12:47:00,919 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 11.84/5.73 [2019-03-28 12:47:00,924 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 11.84/5.73 [2019-03-28 12:47:00,925 INFO L271 PluginConnector]: Initializing CDTParser... 11.84/5.73 [2019-03-28 12:47:00,926 INFO L276 PluginConnector]: CDTParser initialized 11.84/5.73 [2019-03-28 12:47:00,927 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 11.84/5.73 [2019-03-28 12:47:00,998 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/a07f8736db0a492f80343426fcca87a5/FLAG81272523d 11.84/5.73 [2019-03-28 12:47:01,331 INFO L307 CDTParser]: Found 1 translation units. 11.84/5.73 [2019-03-28 12:47:01,332 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 11.84/5.73 [2019-03-28 12:47:01,338 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/a07f8736db0a492f80343426fcca87a5/FLAG81272523d 11.84/5.73 [2019-03-28 12:47:01,737 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/a07f8736db0a492f80343426fcca87a5 11.84/5.73 [2019-03-28 12:47:01,748 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 11.84/5.73 [2019-03-28 12:47:01,750 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 11.84/5.73 [2019-03-28 12:47:01,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 11.84/5.73 [2019-03-28 12:47:01,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 11.84/5.73 [2019-03-28 12:47:01,755 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 11.84/5.73 [2019-03-28 12:47:01,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:01" (1/1) ... 11.84/5.73 [2019-03-28 12:47:01,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61d40edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:01, skipping insertion in model container 11.84/5.73 [2019-03-28 12:47:01,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:01" (1/1) ... 11.84/5.73 [2019-03-28 12:47:01,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 11.84/5.73 [2019-03-28 12:47:01,784 INFO L176 MainTranslator]: Built tables and reachable declarations 11.84/5.73 [2019-03-28 12:47:01,950 INFO L206 PostProcessor]: Analyzing one entry point: main 11.84/5.73 [2019-03-28 12:47:01,963 INFO L191 MainTranslator]: Completed pre-run 11.84/5.73 [2019-03-28 12:47:01,982 INFO L206 PostProcessor]: Analyzing one entry point: main 11.84/5.73 [2019-03-28 12:47:02,060 INFO L195 MainTranslator]: Completed translation 11.84/5.73 [2019-03-28 12:47:02,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02 WrapperNode 11.84/5.73 [2019-03-28 12:47:02,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 11.84/5.73 [2019-03-28 12:47:02,062 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 11.84/5.73 [2019-03-28 12:47:02,062 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 11.84/5.73 [2019-03-28 12:47:02,063 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 11.84/5.73 [2019-03-28 12:47:02,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 11.84/5.73 [2019-03-28 12:47:02,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 11.84/5.73 [2019-03-28 12:47:02,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 11.84/5.73 [2019-03-28 12:47:02,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized 11.84/5.73 [2019-03-28 12:47:02,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 11.84/5.73 [2019-03-28 12:47:02,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 11.84/5.73 [2019-03-28 12:47:02,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... 11.84/5.73 [2019-03-28 12:47:02,132 INFO L276 PluginConnector]: RCFGBuilder initialized 11.84/5.73 [2019-03-28 12:47:02,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (1/1) ... 11.84/5.73 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 11.84/5.73 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 11.84/5.73 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.84/5.73 [2019-03-28 12:47:02,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 11.84/5.73 [2019-03-28 12:47:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 11.84/5.73 [2019-03-28 12:47:02,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 11.84/5.73 [2019-03-28 12:47:02,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 11.84/5.73 [2019-03-28 12:47:02,458 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 11.84/5.73 [2019-03-28 12:47:02,458 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. 11.84/5.73 [2019-03-28 12:47:02,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:02 BoogieIcfgContainer 11.84/5.73 [2019-03-28 12:47:02,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 11.84/5.73 [2019-03-28 12:47:02,460 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 11.84/5.73 [2019-03-28 12:47:02,460 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 11.84/5.73 [2019-03-28 12:47:02,463 INFO L276 PluginConnector]: BlockEncodingV2 initialized 11.84/5.73 [2019-03-28 12:47:02,463 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:02" (1/1) ... 11.84/5.73 [2019-03-28 12:47:02,480 INFO L313 BlockEncoder]: Initial Icfg 31 locations, 35 edges 11.84/5.73 [2019-03-28 12:47:02,482 INFO L258 BlockEncoder]: Using Remove infeasible edges 11.84/5.73 [2019-03-28 12:47:02,482 INFO L263 BlockEncoder]: Using Maximize final states 11.84/5.73 [2019-03-28 12:47:02,483 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 11.84/5.73 [2019-03-28 12:47:02,483 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 11.84/5.73 [2019-03-28 12:47:02,485 INFO L296 BlockEncoder]: Using Remove sink states 11.84/5.73 [2019-03-28 12:47:02,486 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 11.84/5.73 [2019-03-28 12:47:02,486 INFO L179 BlockEncoder]: Using Rewrite not-equals 11.84/5.73 [2019-03-28 12:47:02,507 INFO L185 BlockEncoder]: Using Use SBE 11.84/5.73 [2019-03-28 12:47:02,534 INFO L200 BlockEncoder]: SBE split 12 edges 11.84/5.73 [2019-03-28 12:47:02,539 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 11.84/5.73 [2019-03-28 12:47:02,541 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.84/5.73 [2019-03-28 12:47:02,586 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding 11.84/5.73 [2019-03-28 12:47:02,589 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 11.84/5.73 [2019-03-28 12:47:02,591 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 11.84/5.73 [2019-03-28 12:47:02,591 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.84/5.73 [2019-03-28 12:47:02,591 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 11.84/5.73 [2019-03-28 12:47:02,592 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.84/5.73 [2019-03-28 12:47:02,592 INFO L313 BlockEncoder]: Encoded RCFG 23 locations, 37 edges 11.84/5.73 [2019-03-28 12:47:02,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:02 BasicIcfg 11.84/5.73 [2019-03-28 12:47:02,593 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 11.84/5.73 [2019-03-28 12:47:02,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 11.84/5.73 [2019-03-28 12:47:02,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... 11.84/5.73 [2019-03-28 12:47:02,597 INFO L276 PluginConnector]: TraceAbstraction initialized 11.84/5.73 [2019-03-28 12:47:02,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:47:01" (1/4) ... 11.84/5.73 [2019-03-28 12:47:02,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986be41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:02, skipping insertion in model container 11.84/5.73 [2019-03-28 12:47:02,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:02" (2/4) ... 11.84/5.73 [2019-03-28 12:47:02,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986be41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:02, skipping insertion in model container 11.84/5.73 [2019-03-28 12:47:02,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:02" (3/4) ... 11.84/5.73 [2019-03-28 12:47:02,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6986be41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:02, skipping insertion in model container 11.84/5.73 [2019-03-28 12:47:02,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:02" (4/4) ... 11.84/5.73 [2019-03-28 12:47:02,602 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.84/5.73 [2019-03-28 12:47:02,612 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 11.84/5.73 [2019-03-28 12:47:02,620 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. 11.84/5.73 [2019-03-28 12:47:02,637 INFO L257 AbstractCegarLoop]: Starting to check reachability of 12 error locations. 11.84/5.73 [2019-03-28 12:47:02,666 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.84/5.73 [2019-03-28 12:47:02,666 INFO L382 AbstractCegarLoop]: Interprodecural is true 11.84/5.73 [2019-03-28 12:47:02,667 INFO L383 AbstractCegarLoop]: Hoare is true 11.84/5.73 [2019-03-28 12:47:02,667 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 11.84/5.73 [2019-03-28 12:47:02,667 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 11.84/5.73 [2019-03-28 12:47:02,667 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.84/5.73 [2019-03-28 12:47:02,667 INFO L387 AbstractCegarLoop]: Difference is false 11.84/5.73 [2019-03-28 12:47:02,667 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 11.84/5.73 [2019-03-28 12:47:02,668 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 11.84/5.73 [2019-03-28 12:47:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. 11.84/5.73 [2019-03-28 12:47:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 11.84/5.73 [2019-03-28 12:47:02,689 INFO L394 BasicCegarLoop]: Found error trace 11.84/5.73 [2019-03-28 12:47:02,690 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] 11.84/5.73 [2019-03-28 12:47:02,690 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION]=== 11.84/5.73 [2019-03-28 12:47:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.84/5.73 [2019-03-28 12:47:02,696 INFO L82 PathProgramCache]: Analyzing trace with hash 4915219, now seen corresponding path program 1 times 11.84/5.73 [2019-03-28 12:47:02,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.84/5.73 [2019-03-28 12:47:02,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.84/5.73 [2019-03-28 12:47:02,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.84/5.73 [2019-03-28 12:47:02,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.84/5.73 [2019-03-28 12:47:02,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.84/5.73 [2019-03-28 12:47:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.84/5.73 [2019-03-28 12:47:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.84/5.73 [2019-03-28 12:47:02,827 INFO L469 BasicCegarLoop]: Counterexample might be feasible 11.84/5.73 [2019-03-28 12:47:02,847 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 11.84/5.73 [2019-03-28 12:47:02,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:02 BasicIcfg 11.84/5.73 [2019-03-28 12:47:02,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 11.84/5.73 [2019-03-28 12:47:02,852 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 11.84/5.73 [2019-03-28 12:47:02,852 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 11.84/5.73 [2019-03-28 12:47:02,855 INFO L276 PluginConnector]: BuchiAutomizer initialized 11.84/5.73 [2019-03-28 12:47:02,856 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.84/5.73 [2019-03-28 12:47:02,856 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.84/5.73 [2019-03-28 12:47:02,856 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.84/5.73 [2019-03-28 12:47:02,856 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.84/5.73 [2019-03-28 12:47:02,856 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.84/5.73 [2019-03-28 12:47:02,856 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 11.84/5.73 [2019-03-28 12:47:02,857 INFO L168 Benchmark]: Toolchain (without parser) took 1107.91 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 558.5 MB in the beginning and 606.7 MB in the end (delta: -48.2 MB). There was no memory consumed. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,859 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.77 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 558.5 MB in the beginning and 661.7 MB in the end (delta: -103.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.69 ms. Allocated memory is still 694.2 MB. Free memory was 661.7 MB in the beginning and 658.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,861 INFO L168 Benchmark]: Boogie Preprocessor took 25.47 ms. Allocated memory is still 694.2 MB. Free memory was 658.6 MB in the beginning and 657.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,862 INFO L168 Benchmark]: RCFGBuilder took 327.86 ms. Allocated memory is still 694.2 MB. Free memory was 655.9 MB in the beginning and 635.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,862 INFO L168 Benchmark]: BlockEncodingV2 took 132.97 ms. Allocated memory is still 694.2 MB. Free memory was 635.0 MB in the beginning and 626.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,863 INFO L168 Benchmark]: TraceAbstraction took 257.17 ms. Allocated memory is still 694.2 MB. Free memory was 626.9 MB in the beginning and 608.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,864 INFO L168 Benchmark]: BuchiAutomizer took 4.65 ms. Allocated memory is still 694.2 MB. Free memory was 608.0 MB in the beginning and 606.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 11.84/5.73 [2019-03-28 12:47:02,868 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 11.84/5.73 --- Results --- 11.84/5.73 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 11.84/5.73 - StatisticsResult: Initial Icfg 11.84/5.73 31 locations, 35 edges 11.84/5.73 - StatisticsResult: Encoded RCFG 11.84/5.73 23 locations, 37 edges 11.84/5.73 * Results from de.uni_freiburg.informatik.ultimate.core: 11.84/5.73 - StatisticsResult: Toolchain Benchmarks 11.84/5.73 Benchmark results are: 11.84/5.73 * CDTParser took 0.18 ms. Allocated memory is still 649.6 MB. Free memory is still 580.0 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.84/5.73 * CACSL2BoogieTranslator took 310.77 ms. Allocated memory was 649.6 MB in the beginning and 694.2 MB in the end (delta: 44.6 MB). Free memory was 558.5 MB in the beginning and 661.7 MB in the end (delta: -103.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. 11.84/5.73 * Boogie Procedure Inliner took 43.69 ms. Allocated memory is still 694.2 MB. Free memory was 661.7 MB in the beginning and 658.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 50.3 GB. 11.84/5.73 * Boogie Preprocessor took 25.47 ms. Allocated memory is still 694.2 MB. Free memory was 658.6 MB in the beginning and 657.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 11.84/5.73 * RCFGBuilder took 327.86 ms. Allocated memory is still 694.2 MB. Free memory was 655.9 MB in the beginning and 635.0 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 50.3 GB. 11.84/5.73 * BlockEncodingV2 took 132.97 ms. Allocated memory is still 694.2 MB. Free memory was 635.0 MB in the beginning and 626.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 50.3 GB. 11.84/5.73 * TraceAbstraction took 257.17 ms. Allocated memory is still 694.2 MB. Free memory was 626.9 MB in the beginning and 608.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 50.3 GB. 11.84/5.73 * BuchiAutomizer took 4.65 ms. Allocated memory is still 694.2 MB. Free memory was 608.0 MB in the beginning and 606.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 50.3 GB. 11.84/5.73 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 11.84/5.73 - CounterExampleResult [Line: 9]: pointer dereference may fail 11.84/5.73 pointer dereference may fail 11.84/5.73 We found a FailurePath: 11.84/5.73 [L16] int *x; 11.84/5.73 [L17] int n = __VERIFIER_nondet_int(); 11.84/5.73 [L4] int pass; 11.84/5.73 [L5] int i; 11.84/5.73 [L6] pass=1 11.84/5.73 [L6] COND TRUE pass < n 11.84/5.73 [L8] i=0 11.84/5.73 [L8] COND TRUE i < n - pass 11.84/5.73 [L9] x[i] 11.84/5.73 11.84/5.73 - StatisticsResult: Ultimate Automizer benchmark data 11.84/5.73 CFG has 1 procedures, 23 locations, 12 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available 11.84/5.73 RESULT: Ultimate proved your program to be incorrect! 11.84/5.73 !SESSION 2019-03-28 12:46:58.478 ----------------------------------------------- 11.84/5.73 eclipse.buildId=unknown 11.84/5.73 java.version=1.8.0_181 11.84/5.73 java.vendor=Oracle Corporation 11.84/5.73 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 11.84/5.73 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 11.84/5.73 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 11.84/5.73 11.84/5.73 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:47:03.101 11.84/5.73 !MESSAGE The workspace will exit with unsaved changes in this session. 11.84/5.73 Received shutdown request... 11.84/5.73 Ultimate: 11.84/5.73 GTK+ Version Check 11.84/5.73 EOF