12.05/5.62 MAYBE 12.05/5.62 12.05/5.62 Ultimate: Cannot open display: 12.05/5.62 This is Ultimate 0.1.24-8dc7c08-m 12.05/5.62 [2019-03-28 12:48:48,097 INFO L170 SettingsManager]: Resetting all preferences to default values... 12.05/5.62 [2019-03-28 12:48:48,099 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 12.05/5.62 [2019-03-28 12:48:48,111 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,111 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 12.05/5.62 [2019-03-28 12:48:48,112 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 12.05/5.62 [2019-03-28 12:48:48,114 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 12.05/5.62 [2019-03-28 12:48:48,115 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 12.05/5.62 [2019-03-28 12:48:48,117 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 12.05/5.62 [2019-03-28 12:48:48,118 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 12.05/5.62 [2019-03-28 12:48:48,119 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,119 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 12.05/5.62 [2019-03-28 12:48:48,120 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 12.05/5.62 [2019-03-28 12:48:48,121 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 12.05/5.62 [2019-03-28 12:48:48,122 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 12.05/5.62 [2019-03-28 12:48:48,123 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 12.05/5.62 [2019-03-28 12:48:48,124 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 12.05/5.62 [2019-03-28 12:48:48,126 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 12.05/5.62 [2019-03-28 12:48:48,128 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 12.05/5.62 [2019-03-28 12:48:48,129 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 12.05/5.62 [2019-03-28 12:48:48,130 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 12.05/5.62 [2019-03-28 12:48:48,132 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 12.05/5.62 [2019-03-28 12:48:48,134 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,134 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,135 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 12.05/5.62 [2019-03-28 12:48:48,136 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 12.05/5.62 [2019-03-28 12:48:48,137 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 12.05/5.62 [2019-03-28 12:48:48,138 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,138 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 12.05/5.62 [2019-03-28 12:48:48,139 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 12.05/5.62 [2019-03-28 12:48:48,140 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 12.05/5.62 [2019-03-28 12:48:48,140 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 12.05/5.62 [2019-03-28 12:48:48,141 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,141 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 12.05/5.62 [2019-03-28 12:48:48,142 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,142 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 12.05/5.62 [2019-03-28 12:48:48,142 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 12.05/5.62 [2019-03-28 12:48:48,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 12.05/5.62 [2019-03-28 12:48:48,144 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 12.05/5.62 [2019-03-28 12:48:48,144 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 12.05/5.62 [2019-03-28 12:48:48,161 INFO L110 SettingsManager]: Loading preferences was successful 12.05/5.62 [2019-03-28 12:48:48,161 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 12.05/5.62 [2019-03-28 12:48:48,162 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 12.05/5.62 [2019-03-28 12:48:48,162 INFO L133 SettingsManager]: * Rewrite not-equals=true 12.05/5.62 [2019-03-28 12:48:48,162 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 12.05/5.62 [2019-03-28 12:48:48,163 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 12.05/5.62 [2019-03-28 12:48:48,163 INFO L133 SettingsManager]: * Use SBE=true 12.05/5.62 [2019-03-28 12:48:48,163 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 12.05/5.62 [2019-03-28 12:48:48,163 INFO L133 SettingsManager]: * Use old map elimination=false 12.05/5.62 [2019-03-28 12:48:48,163 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 12.05/5.62 [2019-03-28 12:48:48,164 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 12.05/5.62 [2019-03-28 12:48:48,164 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 12.05/5.62 [2019-03-28 12:48:48,164 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 12.05/5.62 [2019-03-28 12:48:48,164 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 12.05/5.62 [2019-03-28 12:48:48,164 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.05/5.62 [2019-03-28 12:48:48,165 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 12.05/5.62 [2019-03-28 12:48:48,165 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 12.05/5.62 [2019-03-28 12:48:48,165 INFO L133 SettingsManager]: * Check division by zero=IGNORE 12.05/5.62 [2019-03-28 12:48:48,165 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 12.05/5.62 [2019-03-28 12:48:48,165 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 12.05/5.62 [2019-03-28 12:48:48,166 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 12.05/5.62 [2019-03-28 12:48:48,166 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 12.05/5.62 [2019-03-28 12:48:48,166 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 12.05/5.62 [2019-03-28 12:48:48,166 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 12.05/5.62 [2019-03-28 12:48:48,166 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.05/5.62 [2019-03-28 12:48:48,166 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 12.05/5.62 [2019-03-28 12:48:48,167 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 12.05/5.62 [2019-03-28 12:48:48,167 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 12.05/5.62 [2019-03-28 12:48:48,167 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 12.05/5.62 [2019-03-28 12:48:48,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 12.05/5.62 [2019-03-28 12:48:48,207 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 12.05/5.62 [2019-03-28 12:48:48,211 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 12.05/5.62 [2019-03-28 12:48:48,213 INFO L271 PluginConnector]: Initializing CDTParser... 12.05/5.62 [2019-03-28 12:48:48,213 INFO L276 PluginConnector]: CDTParser initialized 12.05/5.62 [2019-03-28 12:48:48,214 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 12.05/5.62 [2019-03-28 12:48:48,282 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/27e52c06bf174c6d9629c22e0eb4badc/FLAG900f387cd 12.05/5.62 [2019-03-28 12:48:48,664 INFO L307 CDTParser]: Found 1 translation units. 12.05/5.62 [2019-03-28 12:48:48,665 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 12.05/5.62 [2019-03-28 12:48:48,671 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/27e52c06bf174c6d9629c22e0eb4badc/FLAG900f387cd 12.05/5.62 [2019-03-28 12:48:49,084 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/27e52c06bf174c6d9629c22e0eb4badc 12.05/5.62 [2019-03-28 12:48:49,096 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 12.05/5.62 [2019-03-28 12:48:49,098 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 12.05/5.62 [2019-03-28 12:48:49,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 12.05/5.62 [2019-03-28 12:48:49,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 12.05/5.62 [2019-03-28 12:48:49,103 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 12.05/5.62 [2019-03-28 12:48:49,104 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,107 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157f9be3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49, skipping insertion in model container 12.05/5.62 [2019-03-28 12:48:49,107 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 12.05/5.62 [2019-03-28 12:48:49,133 INFO L176 MainTranslator]: Built tables and reachable declarations 12.05/5.62 [2019-03-28 12:48:49,300 INFO L206 PostProcessor]: Analyzing one entry point: main 12.05/5.62 [2019-03-28 12:48:49,312 INFO L191 MainTranslator]: Completed pre-run 12.05/5.62 [2019-03-28 12:48:49,331 INFO L206 PostProcessor]: Analyzing one entry point: main 12.05/5.62 [2019-03-28 12:48:49,408 INFO L195 MainTranslator]: Completed translation 12.05/5.62 [2019-03-28 12:48:49,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49 WrapperNode 12.05/5.62 [2019-03-28 12:48:49,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 12.05/5.62 [2019-03-28 12:48:49,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 12.05/5.62 [2019-03-28 12:48:49,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 12.05/5.62 [2019-03-28 12:48:49,410 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 12.05/5.62 [2019-03-28 12:48:49,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 12.05/5.62 [2019-03-28 12:48:49,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 12.05/5.62 [2019-03-28 12:48:49,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 12.05/5.62 [2019-03-28 12:48:49,453 INFO L276 PluginConnector]: Boogie Preprocessor initialized 12.05/5.62 [2019-03-28 12:48:49,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,465 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 12.05/5.62 [2019-03-28 12:48:49,479 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 12.05/5.62 [2019-03-28 12:48:49,479 INFO L271 PluginConnector]: Initializing RCFGBuilder... 12.05/5.62 [2019-03-28 12:48:49,479 INFO L276 PluginConnector]: RCFGBuilder initialized 12.05/5.62 [2019-03-28 12:48:49,480 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (1/1) ... 12.05/5.62 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.05/5.62 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 12.05/5.62 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.05/5.62 [2019-03-28 12:48:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 12.05/5.62 [2019-03-28 12:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 12.05/5.62 [2019-03-28 12:48:49,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 12.05/5.62 [2019-03-28 12:48:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 12.05/5.62 [2019-03-28 12:48:49,771 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 12.05/5.62 [2019-03-28 12:48:49,771 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. 12.05/5.62 [2019-03-28 12:48:49,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:48:49 BoogieIcfgContainer 12.05/5.62 [2019-03-28 12:48:49,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 12.05/5.62 [2019-03-28 12:48:49,774 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 12.05/5.62 [2019-03-28 12:48:49,774 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 12.05/5.62 [2019-03-28 12:48:49,776 INFO L276 PluginConnector]: BlockEncodingV2 initialized 12.05/5.62 [2019-03-28 12:48:49,777 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:48:49" (1/1) ... 12.05/5.62 [2019-03-28 12:48:49,793 INFO L313 BlockEncoder]: Initial Icfg 29 locations, 33 edges 12.05/5.62 [2019-03-28 12:48:49,795 INFO L258 BlockEncoder]: Using Remove infeasible edges 12.05/5.62 [2019-03-28 12:48:49,795 INFO L263 BlockEncoder]: Using Maximize final states 12.05/5.62 [2019-03-28 12:48:49,796 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 12.05/5.62 [2019-03-28 12:48:49,796 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 12.05/5.62 [2019-03-28 12:48:49,798 INFO L296 BlockEncoder]: Using Remove sink states 12.05/5.62 [2019-03-28 12:48:49,799 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 12.05/5.62 [2019-03-28 12:48:49,799 INFO L179 BlockEncoder]: Using Rewrite not-equals 12.05/5.62 [2019-03-28 12:48:49,820 INFO L185 BlockEncoder]: Using Use SBE 12.05/5.62 [2019-03-28 12:48:49,843 INFO L200 BlockEncoder]: SBE split 12 edges 12.05/5.62 [2019-03-28 12:48:49,849 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 12.05/5.62 [2019-03-28 12:48:49,851 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.05/5.62 [2019-03-28 12:48:49,891 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding 12.05/5.62 [2019-03-28 12:48:49,894 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 12.05/5.62 [2019-03-28 12:48:49,896 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 12.05/5.62 [2019-03-28 12:48:49,896 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.05/5.62 [2019-03-28 12:48:49,896 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 12.05/5.62 [2019-03-28 12:48:49,897 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 12.05/5.62 [2019-03-28 12:48:49,897 INFO L313 BlockEncoder]: Encoded RCFG 21 locations, 35 edges 12.05/5.62 [2019-03-28 12:48:49,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:48:49 BasicIcfg 12.05/5.62 [2019-03-28 12:48:49,898 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 12.05/5.62 [2019-03-28 12:48:49,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 12.05/5.62 [2019-03-28 12:48:49,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... 12.05/5.62 [2019-03-28 12:48:49,903 INFO L276 PluginConnector]: TraceAbstraction initialized 12.05/5.62 [2019-03-28 12:48:49,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:48:49" (1/4) ... 12.05/5.62 [2019-03-28 12:48:49,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cae7b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:48:49, skipping insertion in model container 12.05/5.62 [2019-03-28 12:48:49,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:48:49" (2/4) ... 12.05/5.62 [2019-03-28 12:48:49,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cae7b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:48:49, skipping insertion in model container 12.05/5.62 [2019-03-28 12:48:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:48:49" (3/4) ... 12.05/5.62 [2019-03-28 12:48:49,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cae7b92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:48:49, skipping insertion in model container 12.05/5.62 [2019-03-28 12:48:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:48:49" (4/4) ... 12.05/5.62 [2019-03-28 12:48:49,907 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.05/5.62 [2019-03-28 12:48:49,917 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 12.05/5.62 [2019-03-28 12:48:49,926 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. 12.05/5.62 [2019-03-28 12:48:49,943 INFO L257 AbstractCegarLoop]: Starting to check reachability of 10 error locations. 12.05/5.62 [2019-03-28 12:48:49,972 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.05/5.62 [2019-03-28 12:48:49,973 INFO L382 AbstractCegarLoop]: Interprodecural is true 12.05/5.62 [2019-03-28 12:48:49,973 INFO L383 AbstractCegarLoop]: Hoare is true 12.05/5.62 [2019-03-28 12:48:49,974 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 12.05/5.62 [2019-03-28 12:48:49,974 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 12.05/5.62 [2019-03-28 12:48:49,974 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.05/5.62 [2019-03-28 12:48:49,974 INFO L387 AbstractCegarLoop]: Difference is false 12.05/5.62 [2019-03-28 12:48:49,974 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 12.05/5.62 [2019-03-28 12:48:49,974 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 12.05/5.62 [2019-03-28 12:48:49,990 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. 12.05/5.62 [2019-03-28 12:48:49,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 12.05/5.62 [2019-03-28 12:48:49,996 INFO L394 BasicCegarLoop]: Found error trace 12.05/5.62 [2019-03-28 12:48:49,997 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] 12.05/5.62 [2019-03-28 12:48:49,997 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION]=== 12.05/5.62 [2019-03-28 12:48:50,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.05/5.62 [2019-03-28 12:48:50,003 INFO L82 PathProgramCache]: Analyzing trace with hash 154700, now seen corresponding path program 1 times 12.05/5.62 [2019-03-28 12:48:50,005 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.05/5.62 [2019-03-28 12:48:50,006 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.05/5.62 [2019-03-28 12:48:50,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.05/5.62 [2019-03-28 12:48:50,059 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.05/5.62 [2019-03-28 12:48:50,059 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.05/5.62 [2019-03-28 12:48:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.05/5.62 [2019-03-28 12:48:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.05/5.62 [2019-03-28 12:48:50,131 INFO L469 BasicCegarLoop]: Counterexample might be feasible 12.05/5.62 [2019-03-28 12:48:50,151 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 12.05/5.62 [2019-03-28 12:48:50,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:48:50 BasicIcfg 12.05/5.62 [2019-03-28 12:48:50,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 12.05/5.62 [2019-03-28 12:48:50,155 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 12.05/5.62 [2019-03-28 12:48:50,155 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 12.05/5.62 [2019-03-28 12:48:50,158 INFO L276 PluginConnector]: BuchiAutomizer initialized 12.05/5.62 [2019-03-28 12:48:50,159 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.05/5.62 [2019-03-28 12:48:50,159 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.05/5.62 [2019-03-28 12:48:50,159 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.05/5.62 [2019-03-28 12:48:50,159 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.05/5.62 [2019-03-28 12:48:50,159 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.05/5.62 [2019-03-28 12:48:50,159 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 12.05/5.62 [2019-03-28 12:48:50,160 INFO L168 Benchmark]: Toolchain (without parser) took 1063.05 ms. Allocated memory was 649.6 MB in the beginning and 660.6 MB in the end (delta: 11.0 MB). Free memory was 565.0 MB in the beginning and 579.1 MB in the end (delta: -14.1 MB). There was no memory consumed. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,162 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.73 ms. Allocated memory was 649.6 MB in the beginning and 660.6 MB in the end (delta: 11.0 MB). Free memory was 563.9 MB in the beginning and 628.1 MB in the end (delta: -64.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 660.6 MB. Free memory was 628.1 MB in the beginning and 624.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,164 INFO L168 Benchmark]: Boogie Preprocessor took 25.33 ms. Allocated memory is still 660.6 MB. Free memory was 624.1 MB in the beginning and 623.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,165 INFO L168 Benchmark]: RCFGBuilder took 294.54 ms. Allocated memory is still 660.6 MB. Free memory was 623.1 MB in the beginning and 601.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,165 INFO L168 Benchmark]: BlockEncodingV2 took 124.59 ms. Allocated memory is still 660.6 MB. Free memory was 601.8 MB in the beginning and 593.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,166 INFO L168 Benchmark]: TraceAbstraction took 255.13 ms. Allocated memory is still 660.6 MB. Free memory was 593.1 MB in the beginning and 580.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,167 INFO L168 Benchmark]: BuchiAutomizer took 4.58 ms. Allocated memory is still 660.6 MB. Free memory was 580.2 MB in the beginning and 579.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.05/5.62 [2019-03-28 12:48:50,171 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 12.05/5.62 --- Results --- 12.05/5.62 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 12.05/5.62 - StatisticsResult: Initial Icfg 12.05/5.62 29 locations, 33 edges 12.05/5.62 - StatisticsResult: Encoded RCFG 12.05/5.62 21 locations, 35 edges 12.05/5.62 * Results from de.uni_freiburg.informatik.ultimate.core: 12.05/5.62 - StatisticsResult: Toolchain Benchmarks 12.05/5.62 Benchmark results are: 12.05/5.62 * CDTParser took 0.16 ms. Allocated memory is still 649.6 MB. Free memory is still 585.5 MB. There was no memory consumed. Max. memory is 50.3 GB. 12.05/5.62 * CACSL2BoogieTranslator took 310.73 ms. Allocated memory was 649.6 MB in the beginning and 660.6 MB in the end (delta: 11.0 MB). Free memory was 563.9 MB in the beginning and 628.1 MB in the end (delta: -64.1 MB). Peak memory consumption was 31.4 MB. Max. memory is 50.3 GB. 12.05/5.62 * Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 660.6 MB. Free memory was 628.1 MB in the beginning and 624.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 50.3 GB. 12.05/5.62 * Boogie Preprocessor took 25.33 ms. Allocated memory is still 660.6 MB. Free memory was 624.1 MB in the beginning and 623.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.05/5.62 * RCFGBuilder took 294.54 ms. Allocated memory is still 660.6 MB. Free memory was 623.1 MB in the beginning and 601.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 50.3 GB. 12.05/5.62 * BlockEncodingV2 took 124.59 ms. Allocated memory is still 660.6 MB. Free memory was 601.8 MB in the beginning and 593.1 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. 12.05/5.62 * TraceAbstraction took 255.13 ms. Allocated memory is still 660.6 MB. Free memory was 593.1 MB in the beginning and 580.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.9 MB. Max. memory is 50.3 GB. 12.05/5.62 * BuchiAutomizer took 4.58 ms. Allocated memory is still 660.6 MB. Free memory was 580.2 MB in the beginning and 579.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.05/5.62 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 12.05/5.62 - CounterExampleResult [Line: 7]: pointer dereference may fail 12.05/5.62 pointer dereference may fail 12.05/5.62 We found a FailurePath: 12.05/5.62 [L18] int *a; 12.05/5.62 [L19] int N = __VERIFIER_nondet_int(); 12.05/5.62 [L5] int i, j, v; 12.05/5.62 [L6] i = 2 12.05/5.62 [L6] COND TRUE i <= N 12.05/5.62 [L7] a[i] 12.05/5.62 12.05/5.62 - StatisticsResult: Ultimate Automizer benchmark data 12.05/5.62 CFG has 1 procedures, 21 locations, 10 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=21occurred 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, 3 NumberOfCodeBlocks, 3 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 12.05/5.62 RESULT: Ultimate proved your program to be incorrect! 12.05/5.62 !SESSION 2019-03-28 12:48:45.751 ----------------------------------------------- 12.05/5.62 eclipse.buildId=unknown 12.05/5.62 java.version=1.8.0_181 12.05/5.62 java.vendor=Oracle Corporation 12.05/5.62 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 12.05/5.62 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 12.05/5.62 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 12.05/5.62 12.05/5.62 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:48:50.404 12.05/5.62 !MESSAGE The workspace will exit with unsaved changes in this session. 12.05/5.62 Received shutdown request... 12.05/5.62 Ultimate: 12.05/5.62 GTK+ Version Check 12.05/5.62 EOF