12.03/5.63 MAYBE 12.03/5.63 12.03/5.63 Ultimate: Cannot open display: 12.03/5.63 This is Ultimate 0.1.24-8dc7c08-m 12.03/5.63 [2019-03-28 12:49:28,940 INFO L170 SettingsManager]: Resetting all preferences to default values... 12.03/5.63 [2019-03-28 12:49:28,942 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 12.03/5.63 [2019-03-28 12:49:28,953 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 12.03/5.63 [2019-03-28 12:49:28,954 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 12.03/5.63 [2019-03-28 12:49:28,955 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 12.03/5.63 [2019-03-28 12:49:28,957 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 12.03/5.63 [2019-03-28 12:49:28,958 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 12.03/5.63 [2019-03-28 12:49:28,959 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 12.03/5.63 [2019-03-28 12:49:28,960 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,960 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 12.03/5.63 [2019-03-28 12:49:28,961 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 12.03/5.63 [2019-03-28 12:49:28,962 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 12.03/5.63 [2019-03-28 12:49:28,963 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 12.03/5.63 [2019-03-28 12:49:28,964 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 12.03/5.63 [2019-03-28 12:49:28,965 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 12.03/5.63 [2019-03-28 12:49:28,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 12.03/5.63 [2019-03-28 12:49:28,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 12.03/5.63 [2019-03-28 12:49:28,970 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 12.03/5.63 [2019-03-28 12:49:28,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 12.03/5.63 [2019-03-28 12:49:28,972 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 12.03/5.63 [2019-03-28 12:49:28,974 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,974 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,974 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 12.03/5.63 [2019-03-28 12:49:28,976 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 12.03/5.63 [2019-03-28 12:49:28,976 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 12.03/5.63 [2019-03-28 12:49:28,977 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,977 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 12.03/5.63 [2019-03-28 12:49:28,978 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 12.03/5.63 [2019-03-28 12:49:28,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 12.03/5.63 [2019-03-28 12:49:28,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 12.03/5.63 [2019-03-28 12:49:28,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 12.03/5.63 [2019-03-28 12:49:28,981 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,981 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 12.03/5.63 [2019-03-28 12:49:28,982 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 12.03/5.63 [2019-03-28 12:49:28,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 12.03/5.63 [2019-03-28 12:49:28,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 12.03/5.63 [2019-03-28 12:49:28,983 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 12.03/5.63 [2019-03-28 12:49:28,998 INFO L110 SettingsManager]: Loading preferences was successful 12.03/5.63 [2019-03-28 12:49:28,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 12.03/5.63 [2019-03-28 12:49:28,999 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 12.03/5.63 [2019-03-28 12:49:29,000 INFO L133 SettingsManager]: * Rewrite not-equals=true 12.03/5.63 [2019-03-28 12:49:29,000 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 12.03/5.63 [2019-03-28 12:49:29,000 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 12.03/5.63 [2019-03-28 12:49:29,000 INFO L133 SettingsManager]: * Use SBE=true 12.03/5.63 [2019-03-28 12:49:29,000 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 12.03/5.63 [2019-03-28 12:49:29,001 INFO L133 SettingsManager]: * Use old map elimination=false 12.03/5.63 [2019-03-28 12:49:29,001 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 12.03/5.63 [2019-03-28 12:49:29,001 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 12.03/5.63 [2019-03-28 12:49:29,001 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 12.03/5.63 [2019-03-28 12:49:29,001 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 12.03/5.63 [2019-03-28 12:49:29,002 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 12.03/5.63 [2019-03-28 12:49:29,002 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 12.03/5.63 [2019-03-28 12:49:29,002 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 12.03/5.63 [2019-03-28 12:49:29,002 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 12.03/5.63 [2019-03-28 12:49:29,002 INFO L133 SettingsManager]: * Check division by zero=IGNORE 12.03/5.63 [2019-03-28 12:49:29,003 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 12.03/5.63 [2019-03-28 12:49:29,003 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 12.03/5.63 [2019-03-28 12:49:29,003 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 12.03/5.63 [2019-03-28 12:49:29,003 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 12.03/5.63 [2019-03-28 12:49:29,003 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 12.03/5.63 [2019-03-28 12:49:29,004 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 12.03/5.63 [2019-03-28 12:49:29,004 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.03/5.63 [2019-03-28 12:49:29,004 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 12.03/5.63 [2019-03-28 12:49:29,004 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 12.03/5.63 [2019-03-28 12:49:29,004 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 12.03/5.63 [2019-03-28 12:49:29,004 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 12.03/5.63 [2019-03-28 12:49:29,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 12.03/5.63 [2019-03-28 12:49:29,043 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 12.03/5.63 [2019-03-28 12:49:29,046 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 12.03/5.63 [2019-03-28 12:49:29,048 INFO L271 PluginConnector]: Initializing CDTParser... 12.03/5.63 [2019-03-28 12:49:29,048 INFO L276 PluginConnector]: CDTParser initialized 12.03/5.63 [2019-03-28 12:49:29,049 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 12.03/5.63 [2019-03-28 12:49:29,110 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/44243a29295848a28b6decca5c9dc44d/FLAG22755845d 12.03/5.63 [2019-03-28 12:49:29,448 INFO L307 CDTParser]: Found 1 translation units. 12.03/5.63 [2019-03-28 12:49:29,449 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 12.03/5.63 [2019-03-28 12:49:29,456 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/44243a29295848a28b6decca5c9dc44d/FLAG22755845d 12.03/5.63 [2019-03-28 12:49:29,900 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/44243a29295848a28b6decca5c9dc44d 12.03/5.63 [2019-03-28 12:49:29,912 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 12.03/5.63 [2019-03-28 12:49:29,914 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 12.03/5.63 [2019-03-28 12:49:29,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 12.03/5.63 [2019-03-28 12:49:29,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 12.03/5.63 [2019-03-28 12:49:29,919 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 12.03/5.63 [2019-03-28 12:49:29,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:49:29" (1/1) ... 12.03/5.63 [2019-03-28 12:49:29,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ee0124 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:29, skipping insertion in model container 12.03/5.63 [2019-03-28 12:49:29,923 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:49:29" (1/1) ... 12.03/5.63 [2019-03-28 12:49:29,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 12.03/5.63 [2019-03-28 12:49:29,949 INFO L176 MainTranslator]: Built tables and reachable declarations 12.03/5.63 [2019-03-28 12:49:30,117 INFO L206 PostProcessor]: Analyzing one entry point: main 12.03/5.63 [2019-03-28 12:49:30,130 INFO L191 MainTranslator]: Completed pre-run 12.03/5.63 [2019-03-28 12:49:30,209 INFO L206 PostProcessor]: Analyzing one entry point: main 12.03/5.63 [2019-03-28 12:49:30,226 INFO L195 MainTranslator]: Completed translation 12.03/5.63 [2019-03-28 12:49:30,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30 WrapperNode 12.03/5.63 [2019-03-28 12:49:30,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 12.03/5.63 [2019-03-28 12:49:30,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 12.03/5.63 [2019-03-28 12:49:30,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 12.03/5.63 [2019-03-28 12:49:30,228 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 12.03/5.63 [2019-03-28 12:49:30,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,247 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 12.03/5.63 [2019-03-28 12:49:30,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 12.03/5.63 [2019-03-28 12:49:30,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 12.03/5.63 [2019-03-28 12:49:30,271 INFO L276 PluginConnector]: Boogie Preprocessor initialized 12.03/5.63 [2019-03-28 12:49:30,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,295 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,297 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 12.03/5.63 [2019-03-28 12:49:30,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 12.03/5.63 [2019-03-28 12:49:30,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... 12.03/5.63 [2019-03-28 12:49:30,297 INFO L276 PluginConnector]: RCFGBuilder initialized 12.03/5.63 [2019-03-28 12:49:30,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (1/1) ... 12.03/5.63 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 12.03/5.63 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 12.03/5.63 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 12.03/5.63 [2019-03-28 12:49:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 12.03/5.63 [2019-03-28 12:49:30,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 12.03/5.63 [2019-03-28 12:49:30,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 12.03/5.63 [2019-03-28 12:49:30,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 12.03/5.63 [2019-03-28 12:49:30,620 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 12.03/5.63 [2019-03-28 12:49:30,620 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. 12.03/5.63 [2019-03-28 12:49:30,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:49:30 BoogieIcfgContainer 12.03/5.63 [2019-03-28 12:49:30,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 12.03/5.63 [2019-03-28 12:49:30,622 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 12.03/5.63 [2019-03-28 12:49:30,623 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 12.03/5.63 [2019-03-28 12:49:30,625 INFO L276 PluginConnector]: BlockEncodingV2 initialized 12.03/5.63 [2019-03-28 12:49:30,626 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:49:30" (1/1) ... 12.03/5.63 [2019-03-28 12:49:30,644 INFO L313 BlockEncoder]: Initial Icfg 31 locations, 35 edges 12.03/5.63 [2019-03-28 12:49:30,646 INFO L258 BlockEncoder]: Using Remove infeasible edges 12.03/5.63 [2019-03-28 12:49:30,646 INFO L263 BlockEncoder]: Using Maximize final states 12.03/5.63 [2019-03-28 12:49:30,647 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 12.03/5.63 [2019-03-28 12:49:30,647 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 12.03/5.63 [2019-03-28 12:49:30,649 INFO L296 BlockEncoder]: Using Remove sink states 12.03/5.63 [2019-03-28 12:49:30,650 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 12.03/5.63 [2019-03-28 12:49:30,650 INFO L179 BlockEncoder]: Using Rewrite not-equals 12.03/5.63 [2019-03-28 12:49:30,677 INFO L185 BlockEncoder]: Using Use SBE 12.03/5.63 [2019-03-28 12:49:30,701 INFO L200 BlockEncoder]: SBE split 12 edges 12.03/5.63 [2019-03-28 12:49:30,706 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility 12.03/5.63 [2019-03-28 12:49:30,708 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.03/5.63 [2019-03-28 12:49:30,740 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding 12.03/5.63 [2019-03-28 12:49:30,743 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 12.03/5.63 [2019-03-28 12:49:30,744 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 12.03/5.63 [2019-03-28 12:49:30,745 INFO L71 MaximizeFinalStates]: 0 new accepting states 12.03/5.63 [2019-03-28 12:49:30,745 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 12.03/5.63 [2019-03-28 12:49:30,746 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 12.03/5.63 [2019-03-28 12:49:30,746 INFO L313 BlockEncoder]: Encoded RCFG 23 locations, 37 edges 12.03/5.63 [2019-03-28 12:49:30,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:49:30 BasicIcfg 12.03/5.63 [2019-03-28 12:49:30,747 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 12.03/5.63 [2019-03-28 12:49:30,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 12.03/5.63 [2019-03-28 12:49:30,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... 12.03/5.63 [2019-03-28 12:49:30,751 INFO L276 PluginConnector]: TraceAbstraction initialized 12.03/5.63 [2019-03-28 12:49:30,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:49:29" (1/4) ... 12.03/5.63 [2019-03-28 12:49:30,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f870014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:49:30, skipping insertion in model container 12.03/5.63 [2019-03-28 12:49:30,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:49:30" (2/4) ... 12.03/5.63 [2019-03-28 12:49:30,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f870014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:49:30, skipping insertion in model container 12.03/5.63 [2019-03-28 12:49:30,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:49:30" (3/4) ... 12.03/5.63 [2019-03-28 12:49:30,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f870014 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:49:30, skipping insertion in model container 12.03/5.63 [2019-03-28 12:49:30,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:49:30" (4/4) ... 12.03/5.63 [2019-03-28 12:49:30,757 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 12.03/5.63 [2019-03-28 12:49:30,767 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 12.03/5.63 [2019-03-28 12:49:30,776 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. 12.03/5.63 [2019-03-28 12:49:30,793 INFO L257 AbstractCegarLoop]: Starting to check reachability of 12 error locations. 12.03/5.63 [2019-03-28 12:49:30,822 INFO L133 ementStrategyFactory]: Using default assertion order modulation 12.03/5.63 [2019-03-28 12:49:30,822 INFO L382 AbstractCegarLoop]: Interprodecural is true 12.03/5.63 [2019-03-28 12:49:30,823 INFO L383 AbstractCegarLoop]: Hoare is true 12.03/5.63 [2019-03-28 12:49:30,823 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 12.03/5.63 [2019-03-28 12:49:30,823 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 12.03/5.63 [2019-03-28 12:49:30,823 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 12.03/5.63 [2019-03-28 12:49:30,823 INFO L387 AbstractCegarLoop]: Difference is false 12.03/5.63 [2019-03-28 12:49:30,823 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 12.03/5.63 [2019-03-28 12:49:30,824 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 12.03/5.63 [2019-03-28 12:49:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. 12.03/5.63 [2019-03-28 12:49:30,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 12.03/5.63 [2019-03-28 12:49:30,845 INFO L394 BasicCegarLoop]: Found error trace 12.03/5.63 [2019-03-28 12:49:30,846 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] 12.03/5.63 [2019-03-28 12:49:30,846 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION]=== 12.03/5.63 [2019-03-28 12:49:30,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 12.03/5.63 [2019-03-28 12:49:30,852 INFO L82 PathProgramCache]: Analyzing trace with hash 4944116, now seen corresponding path program 1 times 12.03/5.63 [2019-03-28 12:49:30,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 12.03/5.63 [2019-03-28 12:49:30,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 12.03/5.63 [2019-03-28 12:49:30,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.03/5.63 [2019-03-28 12:49:30,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 12.03/5.63 [2019-03-28 12:49:30,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 12.03/5.63 [2019-03-28 12:49:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.03/5.63 [2019-03-28 12:49:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 12.03/5.63 [2019-03-28 12:49:30,982 INFO L469 BasicCegarLoop]: Counterexample might be feasible 12.03/5.63 [2019-03-28 12:49:31,003 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 12.03/5.63 [2019-03-28 12:49:31,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:49:31 BasicIcfg 12.03/5.63 [2019-03-28 12:49:31,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 12.03/5.63 [2019-03-28 12:49:31,007 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 12.03/5.63 [2019-03-28 12:49:31,007 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 12.03/5.63 [2019-03-28 12:49:31,011 INFO L276 PluginConnector]: BuchiAutomizer initialized 12.03/5.63 [2019-03-28 12:49:31,011 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.03/5.63 [2019-03-28 12:49:31,011 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.03/5.63 [2019-03-28 12:49:31,011 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.03/5.63 [2019-03-28 12:49:31,012 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.03/5.63 [2019-03-28 12:49:31,012 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 12.03/5.63 [2019-03-28 12:49:31,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 12.03/5.63 [2019-03-28 12:49:31,012 INFO L168 Benchmark]: Toolchain (without parser) took 1099.72 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 563.4 MB in the beginning and 606.9 MB in the end (delta: -43.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,015 INFO L168 Benchmark]: CDTParser took 0.15 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. 12.03/5.63 [2019-03-28 12:49:31,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.57 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 563.4 MB in the beginning and 660.3 MB in the end (delta: -96.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.98 ms. Allocated memory is still 695.2 MB. Free memory was 660.3 MB in the beginning and 658.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,017 INFO L168 Benchmark]: Boogie Preprocessor took 25.83 ms. Allocated memory is still 695.2 MB. Free memory was 658.2 MB in the beginning and 657.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,018 INFO L168 Benchmark]: RCFGBuilder took 324.94 ms. Allocated memory is still 695.2 MB. Free memory was 657.1 MB in the beginning and 637.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,018 INFO L168 Benchmark]: BlockEncodingV2 took 124.42 ms. Allocated memory is still 695.2 MB. Free memory was 637.2 MB in the beginning and 628.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,019 INFO L168 Benchmark]: TraceAbstraction took 259.08 ms. Allocated memory is still 695.2 MB. Free memory was 628.5 MB in the beginning and 608.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,020 INFO L168 Benchmark]: BuchiAutomizer took 4.58 ms. Allocated memory is still 695.2 MB. Free memory was 608.0 MB in the beginning and 606.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.03/5.63 [2019-03-28 12:49:31,024 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 12.03/5.63 --- Results --- 12.03/5.63 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 12.03/5.63 - StatisticsResult: Initial Icfg 12.03/5.63 31 locations, 35 edges 12.03/5.63 - StatisticsResult: Encoded RCFG 12.03/5.63 23 locations, 37 edges 12.03/5.63 * Results from de.uni_freiburg.informatik.ultimate.core: 12.03/5.63 - StatisticsResult: Toolchain Benchmarks 12.03/5.63 Benchmark results are: 12.03/5.63 * CDTParser took 0.15 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. 12.03/5.63 * CACSL2BoogieTranslator took 312.57 ms. Allocated memory was 649.6 MB in the beginning and 695.2 MB in the end (delta: 45.6 MB). Free memory was 563.4 MB in the beginning and 660.3 MB in the end (delta: -96.9 MB). Peak memory consumption was 30.1 MB. Max. memory is 50.3 GB. 12.03/5.63 * Boogie Procedure Inliner took 42.98 ms. Allocated memory is still 695.2 MB. Free memory was 660.3 MB in the beginning and 658.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. 12.03/5.63 * Boogie Preprocessor took 25.83 ms. Allocated memory is still 695.2 MB. Free memory was 658.2 MB in the beginning and 657.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.03/5.63 * RCFGBuilder took 324.94 ms. Allocated memory is still 695.2 MB. Free memory was 657.1 MB in the beginning and 637.2 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 50.3 GB. 12.03/5.63 * BlockEncodingV2 took 124.42 ms. Allocated memory is still 695.2 MB. Free memory was 637.2 MB in the beginning and 628.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 50.3 GB. 12.03/5.63 * TraceAbstraction took 259.08 ms. Allocated memory is still 695.2 MB. Free memory was 628.5 MB in the beginning and 608.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 50.3 GB. 12.03/5.63 * BuchiAutomizer took 4.58 ms. Allocated memory is still 695.2 MB. Free memory was 608.0 MB in the beginning and 606.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 12.03/5.63 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 12.03/5.63 - CounterExampleResult [Line: 9]: pointer dereference may fail 12.03/5.63 pointer dereference may fail 12.03/5.63 We found a FailurePath: 12.03/5.63 [L20] int *a; 12.03/5.63 [L21] int N = __VERIFIER_nondet_int(); 12.03/5.63 [L5] int i, j, min, t; 12.03/5.63 [L6] i = 1 12.03/5.63 [L6] COND TRUE i < N 12.03/5.63 [L7] min = i 12.03/5.63 [L8] j = i+1 12.03/5.63 [L8] COND TRUE j <= N 12.03/5.63 [L9] a[j] 12.03/5.63 12.03/5.63 - StatisticsResult: Ultimate Automizer benchmark data 12.03/5.63 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 12.03/5.63 RESULT: Ultimate proved your program to be incorrect! 12.03/5.63 !SESSION 2019-03-28 12:49:26.580 ----------------------------------------------- 12.03/5.63 eclipse.buildId=unknown 12.03/5.63 java.version=1.8.0_181 12.03/5.63 java.vendor=Oracle Corporation 12.03/5.63 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 12.03/5.63 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 12.03/5.63 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 12.03/5.63 12.03/5.63 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:49:31.256 12.03/5.63 !MESSAGE The workspace will exit with unsaved changes in this session. 12.03/5.63 Received shutdown request... 12.03/5.63 Ultimate: 12.03/5.63 GTK+ Version Check 12.03/5.63 EOF