11.37/6.02 MAYBE 11.37/6.02 11.37/6.02 Ultimate: Cannot open display: 11.37/6.02 This is Ultimate 0.1.24-8dc7c08-m 11.37/6.02 [2019-03-28 12:47:29,958 INFO L170 SettingsManager]: Resetting all preferences to default values... 11.37/6.02 [2019-03-28 12:47:29,960 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 11.37/6.02 [2019-03-28 12:47:29,971 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:29,971 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 11.37/6.02 [2019-03-28 12:47:29,972 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 11.37/6.02 [2019-03-28 12:47:29,974 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 11.37/6.02 [2019-03-28 12:47:29,975 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 11.37/6.02 [2019-03-28 12:47:29,977 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 11.37/6.02 [2019-03-28 12:47:29,977 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 11.37/6.02 [2019-03-28 12:47:29,978 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:29,978 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 11.37/6.02 [2019-03-28 12:47:29,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 11.37/6.02 [2019-03-28 12:47:29,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 11.37/6.02 [2019-03-28 12:47:29,981 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 11.37/6.02 [2019-03-28 12:47:29,982 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 11.37/6.02 [2019-03-28 12:47:29,983 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 11.37/6.02 [2019-03-28 12:47:29,985 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 11.37/6.02 [2019-03-28 12:47:29,987 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 11.37/6.02 [2019-03-28 12:47:29,988 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 11.37/6.02 [2019-03-28 12:47:29,989 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 11.37/6.02 [2019-03-28 12:47:29,990 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 11.37/6.02 [2019-03-28 12:47:29,994 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:29,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:29,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 11.37/6.02 [2019-03-28 12:47:29,996 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 11.37/6.02 [2019-03-28 12:47:29,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 11.37/6.02 [2019-03-28 12:47:29,997 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:29,997 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 11.37/6.02 [2019-03-28 12:47:29,998 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 11.37/6.02 [2019-03-28 12:47:29,998 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 11.37/6.02 [2019-03-28 12:47:29,999 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 11.37/6.02 [2019-03-28 12:47:30,000 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:30,000 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 11.37/6.02 [2019-03-28 12:47:30,001 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:30,001 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 11.37/6.02 [2019-03-28 12:47:30,001 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 11.37/6.02 [2019-03-28 12:47:30,002 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 11.37/6.02 [2019-03-28 12:47:30,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 11.37/6.02 [2019-03-28 12:47:30,003 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 11.37/6.02 [2019-03-28 12:47:30,018 INFO L110 SettingsManager]: Loading preferences was successful 11.37/6.02 [2019-03-28 12:47:30,018 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 11.37/6.02 [2019-03-28 12:47:30,019 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 11.37/6.02 [2019-03-28 12:47:30,019 INFO L133 SettingsManager]: * Rewrite not-equals=true 11.37/6.02 [2019-03-28 12:47:30,019 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 11.37/6.02 [2019-03-28 12:47:30,019 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 11.37/6.02 [2019-03-28 12:47:30,020 INFO L133 SettingsManager]: * Use SBE=true 11.37/6.02 [2019-03-28 12:47:30,020 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 11.37/6.02 [2019-03-28 12:47:30,020 INFO L133 SettingsManager]: * Use old map elimination=false 11.37/6.02 [2019-03-28 12:47:30,020 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 11.37/6.02 [2019-03-28 12:47:30,020 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 11.37/6.02 [2019-03-28 12:47:30,020 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 11.37/6.02 [2019-03-28 12:47:30,021 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 11.37/6.02 [2019-03-28 12:47:30,021 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 11.37/6.02 [2019-03-28 12:47:30,021 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 11.37/6.02 [2019-03-28 12:47:30,021 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 11.37/6.02 [2019-03-28 12:47:30,021 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 11.37/6.02 [2019-03-28 12:47:30,021 INFO L133 SettingsManager]: * Check division by zero=IGNORE 11.37/6.02 [2019-03-28 12:47:30,022 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 11.37/6.02 [2019-03-28 12:47:30,022 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 11.37/6.02 [2019-03-28 12:47:30,022 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 11.37/6.02 [2019-03-28 12:47:30,022 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 11.37/6.02 [2019-03-28 12:47:30,022 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 11.37/6.02 [2019-03-28 12:47:30,022 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 11.37/6.02 [2019-03-28 12:47:30,023 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.37/6.02 [2019-03-28 12:47:30,023 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 11.37/6.02 [2019-03-28 12:47:30,023 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 11.37/6.02 [2019-03-28 12:47:30,023 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 11.37/6.02 [2019-03-28 12:47:30,023 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 11.37/6.02 [2019-03-28 12:47:30,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 11.37/6.02 [2019-03-28 12:47:30,062 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 11.37/6.02 [2019-03-28 12:47:30,065 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 11.37/6.02 [2019-03-28 12:47:30,067 INFO L271 PluginConnector]: Initializing CDTParser... 11.37/6.02 [2019-03-28 12:47:30,067 INFO L276 PluginConnector]: CDTParser initialized 11.37/6.02 [2019-03-28 12:47:30,068 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 11.37/6.02 [2019-03-28 12:47:30,126 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/2debcb74944f47d1b1f1df1e20c4477a/FLAGfc87302e6 11.37/6.02 [2019-03-28 12:47:30,478 INFO L307 CDTParser]: Found 1 translation units. 11.37/6.02 [2019-03-28 12:47:30,479 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 11.37/6.02 [2019-03-28 12:47:30,485 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/2debcb74944f47d1b1f1df1e20c4477a/FLAGfc87302e6 11.37/6.02 [2019-03-28 12:47:30,899 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/2debcb74944f47d1b1f1df1e20c4477a 11.37/6.02 [2019-03-28 12:47:30,911 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 11.37/6.02 [2019-03-28 12:47:30,913 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 11.37/6.02 [2019-03-28 12:47:30,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 11.37/6.02 [2019-03-28 12:47:30,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 11.37/6.02 [2019-03-28 12:47:30,918 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 11.37/6.02 [2019-03-28 12:47:30,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:30" (1/1) ... 11.37/6.02 [2019-03-28 12:47:30,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6984e1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:30, skipping insertion in model container 11.37/6.02 [2019-03-28 12:47:30,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:30" (1/1) ... 11.37/6.02 [2019-03-28 12:47:30,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 11.37/6.02 [2019-03-28 12:47:30,946 INFO L176 MainTranslator]: Built tables and reachable declarations 11.37/6.02 [2019-03-28 12:47:31,106 INFO L206 PostProcessor]: Analyzing one entry point: main 11.37/6.02 [2019-03-28 12:47:31,118 INFO L191 MainTranslator]: Completed pre-run 11.37/6.02 [2019-03-28 12:47:31,134 INFO L206 PostProcessor]: Analyzing one entry point: main 11.37/6.02 [2019-03-28 12:47:31,206 INFO L195 MainTranslator]: Completed translation 11.37/6.02 [2019-03-28 12:47:31,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31 WrapperNode 11.37/6.02 [2019-03-28 12:47:31,207 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 11.37/6.02 [2019-03-28 12:47:31,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 11.37/6.02 [2019-03-28 12:47:31,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 11.37/6.02 [2019-03-28 12:47:31,208 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 11.37/6.02 [2019-03-28 12:47:31,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 11.37/6.02 [2019-03-28 12:47:31,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 11.37/6.02 [2019-03-28 12:47:31,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 11.37/6.02 [2019-03-28 12:47:31,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized 11.37/6.02 [2019-03-28 12:47:31,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 11.37/6.02 [2019-03-28 12:47:31,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 11.37/6.02 [2019-03-28 12:47:31,271 INFO L271 PluginConnector]: Initializing RCFGBuilder... 11.37/6.02 [2019-03-28 12:47:31,271 INFO L276 PluginConnector]: RCFGBuilder initialized 11.37/6.02 [2019-03-28 12:47:31,272 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (1/1) ... 11.37/6.02 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 11.37/6.02 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 11.37/6.02 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 11.37/6.02 [2019-03-28 12:47:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 11.37/6.02 [2019-03-28 12:47:31,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 11.37/6.02 [2019-03-28 12:47:31,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 11.37/6.02 [2019-03-28 12:47:31,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 11.37/6.02 [2019-03-28 12:47:31,548 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 11.37/6.02 [2019-03-28 12:47:31,548 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. 11.37/6.02 [2019-03-28 12:47:31,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:31 BoogieIcfgContainer 11.37/6.02 [2019-03-28 12:47:31,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 11.37/6.02 [2019-03-28 12:47:31,550 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 11.37/6.02 [2019-03-28 12:47:31,550 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 11.37/6.02 [2019-03-28 12:47:31,552 INFO L276 PluginConnector]: BlockEncodingV2 initialized 11.37/6.02 [2019-03-28 12:47:31,553 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:31" (1/1) ... 11.37/6.02 [2019-03-28 12:47:31,569 INFO L313 BlockEncoder]: Initial Icfg 19 locations, 22 edges 11.37/6.02 [2019-03-28 12:47:31,571 INFO L258 BlockEncoder]: Using Remove infeasible edges 11.37/6.02 [2019-03-28 12:47:31,572 INFO L263 BlockEncoder]: Using Maximize final states 11.37/6.02 [2019-03-28 12:47:31,573 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 11.37/6.02 [2019-03-28 12:47:31,573 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 11.37/6.02 [2019-03-28 12:47:31,575 INFO L296 BlockEncoder]: Using Remove sink states 11.37/6.02 [2019-03-28 12:47:31,575 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 11.37/6.02 [2019-03-28 12:47:31,576 INFO L179 BlockEncoder]: Using Rewrite not-equals 11.37/6.02 [2019-03-28 12:47:31,597 INFO L185 BlockEncoder]: Using Use SBE 11.37/6.02 [2019-03-28 12:47:31,622 INFO L200 BlockEncoder]: SBE split 8 edges 11.37/6.02 [2019-03-28 12:47:31,627 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 11.37/6.02 [2019-03-28 12:47:31,629 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.37/6.02 [2019-03-28 12:47:31,650 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding 11.37/6.02 [2019-03-28 12:47:31,653 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 11.37/6.02 [2019-03-28 12:47:31,654 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 11.37/6.02 [2019-03-28 12:47:31,655 INFO L71 MaximizeFinalStates]: 0 new accepting states 11.37/6.02 [2019-03-28 12:47:31,655 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 11.37/6.02 [2019-03-28 12:47:31,655 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 11.37/6.02 [2019-03-28 12:47:31,656 INFO L313 BlockEncoder]: Encoded RCFG 13 locations, 22 edges 11.37/6.02 [2019-03-28 12:47:31,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:31 BasicIcfg 11.37/6.02 [2019-03-28 12:47:31,656 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 11.37/6.02 [2019-03-28 12:47:31,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 11.37/6.02 [2019-03-28 12:47:31,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... 11.37/6.02 [2019-03-28 12:47:31,661 INFO L276 PluginConnector]: TraceAbstraction initialized 11.37/6.02 [2019-03-28 12:47:31,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:47:30" (1/4) ... 11.37/6.02 [2019-03-28 12:47:31,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519d74c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:31, skipping insertion in model container 11.37/6.02 [2019-03-28 12:47:31,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31" (2/4) ... 11.37/6.02 [2019-03-28 12:47:31,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519d74c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:31, skipping insertion in model container 11.37/6.02 [2019-03-28 12:47:31,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:31" (3/4) ... 11.37/6.02 [2019-03-28 12:47:31,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519d74c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:31, skipping insertion in model container 11.37/6.02 [2019-03-28 12:47:31,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:31" (4/4) ... 11.37/6.02 [2019-03-28 12:47:31,664 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 11.37/6.02 [2019-03-28 12:47:31,674 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 11.37/6.02 [2019-03-28 12:47:31,682 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. 11.37/6.02 [2019-03-28 12:47:31,701 INFO L257 AbstractCegarLoop]: Starting to check reachability of 6 error locations. 11.37/6.02 [2019-03-28 12:47:31,730 INFO L133 ementStrategyFactory]: Using default assertion order modulation 11.37/6.02 [2019-03-28 12:47:31,731 INFO L382 AbstractCegarLoop]: Interprodecural is true 11.37/6.02 [2019-03-28 12:47:31,731 INFO L383 AbstractCegarLoop]: Hoare is true 11.37/6.02 [2019-03-28 12:47:31,731 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 11.37/6.02 [2019-03-28 12:47:31,731 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 11.37/6.02 [2019-03-28 12:47:31,731 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 11.37/6.02 [2019-03-28 12:47:31,732 INFO L387 AbstractCegarLoop]: Difference is false 11.37/6.02 [2019-03-28 12:47:31,732 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 11.37/6.02 [2019-03-28 12:47:31,732 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 11.37/6.02 [2019-03-28 12:47:31,747 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. 11.37/6.02 [2019-03-28 12:47:31,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 11.37/6.02 [2019-03-28 12:47:31,753 INFO L394 BasicCegarLoop]: Found error trace 11.37/6.02 [2019-03-28 12:47:31,754 INFO L402 BasicCegarLoop]: trace histogram [1, 1] 11.37/6.02 [2019-03-28 12:47:31,754 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== 11.37/6.02 [2019-03-28 12:47:31,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 11.37/6.02 [2019-03-28 12:47:31,760 INFO L82 PathProgramCache]: Analyzing trace with hash 3761, now seen corresponding path program 1 times 11.37/6.02 [2019-03-28 12:47:31,762 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 11.37/6.02 [2019-03-28 12:47:31,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 11.37/6.02 [2019-03-28 12:47:31,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.37/6.02 [2019-03-28 12:47:31,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 11.37/6.02 [2019-03-28 12:47:31,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 11.37/6.02 [2019-03-28 12:47:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.37/6.02 [2019-03-28 12:47:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 11.37/6.02 [2019-03-28 12:47:31,884 INFO L469 BasicCegarLoop]: Counterexample might be feasible 11.37/6.02 [2019-03-28 12:47:31,905 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 11.37/6.02 [2019-03-28 12:47:31,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:31 BasicIcfg 11.37/6.02 [2019-03-28 12:47:31,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 11.37/6.02 [2019-03-28 12:47:31,909 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 11.37/6.02 [2019-03-28 12:47:31,909 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 11.37/6.02 [2019-03-28 12:47:31,912 INFO L276 PluginConnector]: BuchiAutomizer initialized 11.37/6.02 [2019-03-28 12:47:31,912 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.37/6.02 [2019-03-28 12:47:31,913 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.37/6.02 [2019-03-28 12:47:31,913 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.37/6.02 [2019-03-28 12:47:31,913 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.37/6.02 [2019-03-28 12:47:31,913 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 11.37/6.02 [2019-03-28 12:47:31,913 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 11.37/6.02 [2019-03-28 12:47:31,914 INFO L168 Benchmark]: Toolchain (without parser) took 1002.15 ms. Allocated memory was 649.6 MB in the beginning and 655.9 MB in the end (delta: 6.3 MB). Free memory was 563.5 MB in the beginning and 573.7 MB in the end (delta: -10.2 MB). There was no memory consumed. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,916 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.56 ms. Allocated memory was 649.6 MB in the beginning and 655.9 MB in the end (delta: 6.3 MB). Free memory was 563.5 MB in the beginning and 623.6 MB in the end (delta: -60.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.27 ms. Allocated memory is still 655.9 MB. Free memory was 623.6 MB in the beginning and 619.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,918 INFO L168 Benchmark]: Boogie Preprocessor took 23.25 ms. Allocated memory is still 655.9 MB. Free memory was 619.7 MB in the beginning and 618.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,919 INFO L168 Benchmark]: RCFGBuilder took 278.92 ms. Allocated memory is still 655.9 MB. Free memory was 618.6 MB in the beginning and 600.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,919 INFO L168 Benchmark]: BlockEncodingV2 took 106.10 ms. Allocated memory is still 655.9 MB. Free memory was 600.6 MB in the beginning and 593.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,920 INFO L168 Benchmark]: TraceAbstraction took 250.79 ms. Allocated memory is still 655.9 MB. Free memory was 593.1 MB in the beginning and 574.7 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,920 INFO L168 Benchmark]: BuchiAutomizer took 4.57 ms. Allocated memory is still 655.9 MB. Free memory is still 573.7 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.37/6.02 [2019-03-28 12:47:31,924 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 11.37/6.02 --- Results --- 11.37/6.02 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 11.37/6.02 - StatisticsResult: Initial Icfg 11.37/6.02 19 locations, 22 edges 11.37/6.02 - StatisticsResult: Encoded RCFG 11.37/6.02 13 locations, 22 edges 11.37/6.02 * Results from de.uni_freiburg.informatik.ultimate.core: 11.37/6.02 - StatisticsResult: Toolchain Benchmarks 11.37/6.02 Benchmark results are: 11.37/6.02 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.4 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.37/6.02 * CACSL2BoogieTranslator took 293.56 ms. Allocated memory was 649.6 MB in the beginning and 655.9 MB in the end (delta: 6.3 MB). Free memory was 563.5 MB in the beginning and 623.6 MB in the end (delta: -60.1 MB). Peak memory consumption was 30.3 MB. Max. memory is 50.3 GB. 11.37/6.02 * Boogie Procedure Inliner took 39.27 ms. Allocated memory is still 655.9 MB. Free memory was 623.6 MB in the beginning and 619.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 11.37/6.02 * Boogie Preprocessor took 23.25 ms. Allocated memory is still 655.9 MB. Free memory was 619.7 MB in the beginning and 618.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 11.37/6.02 * RCFGBuilder took 278.92 ms. Allocated memory is still 655.9 MB. Free memory was 618.6 MB in the beginning and 600.6 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 50.3 GB. 11.37/6.02 * BlockEncodingV2 took 106.10 ms. Allocated memory is still 655.9 MB. Free memory was 600.6 MB in the beginning and 593.1 MB in the end (delta: 7.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 50.3 GB. 11.37/6.02 * TraceAbstraction took 250.79 ms. Allocated memory is still 655.9 MB. Free memory was 593.1 MB in the beginning and 574.7 MB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 50.3 GB. 11.37/6.02 * BuchiAutomizer took 4.57 ms. Allocated memory is still 655.9 MB. Free memory is still 573.7 MB. There was no memory consumed. Max. memory is 50.3 GB. 11.37/6.02 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 11.37/6.02 - CounterExampleResult [Line: 5]: pointer dereference may fail 11.37/6.02 pointer dereference may fail 11.37/6.02 We found a FailurePath: 11.37/6.02 [L15] char *s1; 11.37/6.02 [L16] char *s2; 11.37/6.02 [L3] char *s = s1; 11.37/6.02 [L5] \read(*s) 11.37/6.02 11.37/6.02 - StatisticsResult: Ultimate Automizer benchmark data 11.37/6.02 CFG has 1 procedures, 13 locations, 6 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=13occurred 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, 2 NumberOfCodeBlocks, 2 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 11.37/6.02 RESULT: Ultimate proved your program to be incorrect! 11.37/6.02 !SESSION 2019-03-28 12:47:27.058 ----------------------------------------------- 11.37/6.02 eclipse.buildId=unknown 11.37/6.02 java.version=1.8.0_181 11.37/6.02 java.vendor=Oracle Corporation 11.37/6.02 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 11.37/6.02 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 11.37/6.02 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 11.37/6.02 11.37/6.02 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:47:32.157 11.37/6.02 !MESSAGE The workspace will exit with unsaved changes in this session. 11.37/6.02 Received shutdown request... 11.37/6.02 Ultimate: 11.37/6.02 GTK+ Version Check 11.37/6.02 EOF