10.71/6.01 MAYBE 10.71/6.01 10.71/6.01 Ultimate: Cannot open display: 10.71/6.01 This is Ultimate 0.1.24-8dc7c08-m 10.71/6.01 [2019-03-28 12:47:29,982 INFO L170 SettingsManager]: Resetting all preferences to default values... 10.71/6.01 [2019-03-28 12:47:29,984 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values 10.71/6.01 [2019-03-28 12:47:29,995 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:29,996 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values 10.71/6.01 [2019-03-28 12:47:29,997 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values 10.71/6.01 [2019-03-28 12:47:29,998 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values 10.71/6.01 [2019-03-28 12:47:30,000 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values 10.71/6.01 [2019-03-28 12:47:30,001 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values 10.71/6.01 [2019-03-28 12:47:30,002 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values 10.71/6.01 [2019-03-28 12:47:30,003 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,003 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values 10.71/6.01 [2019-03-28 12:47:30,004 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values 10.71/6.01 [2019-03-28 12:47:30,005 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values 10.71/6.01 [2019-03-28 12:47:30,006 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values 10.71/6.01 [2019-03-28 12:47:30,007 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values 10.71/6.01 [2019-03-28 12:47:30,008 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values 10.71/6.01 [2019-03-28 12:47:30,009 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values 10.71/6.01 [2019-03-28 12:47:30,011 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values 10.71/6.01 [2019-03-28 12:47:30,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values 10.71/6.01 [2019-03-28 12:47:30,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values 10.71/6.01 [2019-03-28 12:47:30,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values 10.71/6.01 [2019-03-28 12:47:30,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,017 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values 10.71/6.01 [2019-03-28 12:47:30,018 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values 10.71/6.01 [2019-03-28 12:47:30,019 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values 10.71/6.01 [2019-03-28 12:47:30,019 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,020 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values 10.71/6.01 [2019-03-28 12:47:30,020 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values 10.71/6.01 [2019-03-28 12:47:30,021 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values 10.71/6.01 [2019-03-28 12:47:30,022 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values 10.71/6.01 [2019-03-28 12:47:30,023 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,023 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values 10.71/6.01 [2019-03-28 12:47:30,024 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,024 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... 10.71/6.01 [2019-03-28 12:47:30,024 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values 10.71/6.01 [2019-03-28 12:47:30,025 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values 10.71/6.01 [2019-03-28 12:47:30,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... 10.71/6.01 [2019-03-28 12:47:30,026 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/bin/./../termcomp2017.epf 10.71/6.01 [2019-03-28 12:47:30,041 INFO L110 SettingsManager]: Loading preferences was successful 10.71/6.01 [2019-03-28 12:47:30,041 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: 10.71/6.01 [2019-03-28 12:47:30,042 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: 10.71/6.01 [2019-03-28 12:47:30,042 INFO L133 SettingsManager]: * Rewrite not-equals=true 10.71/6.01 [2019-03-28 12:47:30,042 INFO L133 SettingsManager]: * Create parallel compositions if possible=false 10.71/6.01 [2019-03-28 12:47:30,042 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE 10.71/6.01 [2019-03-28 12:47:30,043 INFO L133 SettingsManager]: * Use SBE=true 10.71/6.01 [2019-03-28 12:47:30,043 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: 10.71/6.01 [2019-03-28 12:47:30,043 INFO L133 SettingsManager]: * Use old map elimination=false 10.71/6.01 [2019-03-28 12:47:30,043 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false 10.71/6.01 [2019-03-28 12:47:30,043 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION 10.71/6.01 [2019-03-28 12:47:30,044 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true 10.71/6.01 [2019-03-28 12:47:30,044 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES 10.71/6.01 [2019-03-28 12:47:30,044 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true 10.71/6.01 [2019-03-28 12:47:30,044 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 10.71/6.01 [2019-03-28 12:47:30,044 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: 10.71/6.01 [2019-03-28 12:47:30,044 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false 10.71/6.01 [2019-03-28 12:47:30,045 INFO L133 SettingsManager]: * Check division by zero=IGNORE 10.71/6.01 [2019-03-28 12:47:30,045 INFO L133 SettingsManager]: * Check if freed pointer was valid=false 10.71/6.01 [2019-03-28 12:47:30,045 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false 10.71/6.01 [2019-03-28 12:47:30,045 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE 10.71/6.01 [2019-03-28 12:47:30,045 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: 10.71/6.01 [2019-03-28 12:47:30,045 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements 10.71/6.01 [2019-03-28 12:47:30,046 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump 10.71/6.01 [2019-03-28 12:47:30,046 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 10.71/6.01 [2019-03-28 12:47:30,046 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: 10.71/6.01 [2019-03-28 12:47:30,046 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles 10.71/6.01 [2019-03-28 12:47:30,046 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL 10.71/6.01 [2019-03-28 12:47:30,046 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 10.71/6.01 [2019-03-28 12:47:30,072 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp 10.71/6.01 [2019-03-28 12:47:30,085 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized 10.71/6.01 [2019-03-28 12:47:30,089 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. 10.71/6.01 [2019-03-28 12:47:30,090 INFO L271 PluginConnector]: Initializing CDTParser... 10.71/6.01 [2019-03-28 12:47:30,090 INFO L276 PluginConnector]: CDTParser initialized 10.71/6.01 [2019-03-28 12:47:30,091 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c 10.71/6.01 [2019-03-28 12:47:30,156 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/e6a4fd37ca914a46947bbb702df94534/FLAGbc464c642 10.71/6.01 [2019-03-28 12:47:30,494 INFO L307 CDTParser]: Found 1 translation units. 10.71/6.01 [2019-03-28 12:47:30,495 INFO L161 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c 10.71/6.01 [2019-03-28 12:47:30,501 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/e6a4fd37ca914a46947bbb702df94534/FLAGbc464c642 10.71/6.01 [2019-03-28 12:47:30,902 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/e6a4fd37ca914a46947bbb702df94534 10.71/6.01 [2019-03-28 12:47:30,914 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### 10.71/6.01 [2019-03-28 12:47:30,916 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. 10.71/6.01 [2019-03-28 12:47:30,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- 10.71/6.01 [2019-03-28 12:47:30,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... 10.71/6.01 [2019-03-28 12:47:30,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized 10.71/6.01 [2019-03-28 12:47:30,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:30" (1/1) ... 10.71/6.01 [2019-03-28 12:47:30,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c3197bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:30, skipping insertion in model container 10.71/6.01 [2019-03-28 12:47:30,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.03 12:47:30" (1/1) ... 10.71/6.01 [2019-03-28 12:47:30,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode 10.71/6.01 [2019-03-28 12:47:30,951 INFO L176 MainTranslator]: Built tables and reachable declarations 10.71/6.01 [2019-03-28 12:47:31,116 INFO L206 PostProcessor]: Analyzing one entry point: main 10.71/6.01 [2019-03-28 12:47:31,129 INFO L191 MainTranslator]: Completed pre-run 10.71/6.01 [2019-03-28 12:47:31,205 INFO L206 PostProcessor]: Analyzing one entry point: main 10.71/6.01 [2019-03-28 12:47:31,221 INFO L195 MainTranslator]: Completed translation 10.71/6.01 [2019-03-28 12:47:31,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.03 12:47:31 WrapperNode 10.71/6.01 [2019-03-28 12:47:31,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- 10.71/6.01 [2019-03-28 12:47:31,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- 10.71/6.01 [2019-03-28 12:47:31,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... 10.71/6.01 [2019-03-28 12:47:31,223 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized 10.71/6.01 [2019-03-28 12:47:31,233 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) ... 10.71/6.01 [2019-03-28 12:47:31,242 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) ... 10.71/6.01 [2019-03-28 12:47:31,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- 10.71/6.01 [2019-03-28 12:47:31,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- 10.71/6.01 [2019-03-28 12:47:31,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... 10.71/6.01 [2019-03-28 12:47:31,262 INFO L276 PluginConnector]: Boogie Preprocessor initialized 10.71/6.01 [2019-03-28 12:47:31,272 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) ... 10.71/6.01 [2019-03-28 12:47:31,272 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) ... 10.71/6.01 [2019-03-28 12:47:31,274 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) ... 10.71/6.01 [2019-03-28 12:47:31,274 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) ... 10.71/6.01 [2019-03-28 12:47:31,278 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) ... 10.71/6.01 [2019-03-28 12:47:31,282 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) ... 10.71/6.01 [2019-03-28 12:47:31,283 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) ... 10.71/6.01 [2019-03-28 12:47:31,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- 10.71/6.01 [2019-03-28 12:47:31,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- 10.71/6.01 [2019-03-28 12:47:31,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... 10.71/6.01 [2019-03-28 12:47:31,286 INFO L276 PluginConnector]: RCFGBuilder initialized 10.71/6.01 [2019-03-28 12:47:31,286 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) ... 10.71/6.01 No working directory specified, using /export/starexec/sandbox/solver/bin/z3 10.71/6.01 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) 10.71/6.01 Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 10.71/6.01 [2019-03-28 12:47:31,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int 10.71/6.01 [2019-03-28 12:47:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start 10.71/6.01 [2019-03-28 12:47:31,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start 10.71/6.01 [2019-03-28 12:47:31,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int 10.71/6.01 [2019-03-28 12:47:31,558 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) 10.71/6.01 [2019-03-28 12:47:31,559 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. 10.71/6.01 [2019-03-28 12:47:31,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.03 12:47:31 BoogieIcfgContainer 10.71/6.01 [2019-03-28 12:47:31,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- 10.71/6.01 [2019-03-28 12:47:31,561 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- 10.71/6.01 [2019-03-28 12:47:31,561 INFO L271 PluginConnector]: Initializing BlockEncodingV2... 10.71/6.01 [2019-03-28 12:47:31,564 INFO L276 PluginConnector]: BlockEncodingV2 initialized 10.71/6.01 [2019-03-28 12:47:31,565 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) ... 10.71/6.01 [2019-03-28 12:47:31,580 INFO L313 BlockEncoder]: Initial Icfg 15 locations, 16 edges 10.71/6.01 [2019-03-28 12:47:31,581 INFO L258 BlockEncoder]: Using Remove infeasible edges 10.71/6.01 [2019-03-28 12:47:31,582 INFO L263 BlockEncoder]: Using Maximize final states 10.71/6.01 [2019-03-28 12:47:31,582 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false 10.71/6.01 [2019-03-28 12:47:31,583 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE 10.71/6.01 [2019-03-28 12:47:31,584 INFO L296 BlockEncoder]: Using Remove sink states 10.71/6.01 [2019-03-28 12:47:31,585 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true 10.71/6.01 [2019-03-28 12:47:31,585 INFO L179 BlockEncoder]: Using Rewrite not-equals 10.71/6.01 [2019-03-28 12:47:31,601 INFO L185 BlockEncoder]: Using Use SBE 10.71/6.01 [2019-03-28 12:47:31,618 INFO L200 BlockEncoder]: SBE split 5 edges 10.71/6.01 [2019-03-28 12:47:31,623 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility 10.71/6.01 [2019-03-28 12:47:31,625 INFO L71 MaximizeFinalStates]: 0 new accepting states 10.71/6.01 [2019-03-28 12:47:31,646 INFO L100 BaseMinimizeStates]: Removed 10 edges and 5 locations by large block encoding 10.71/6.01 [2019-03-28 12:47:31,648 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states 10.71/6.01 [2019-03-28 12:47:31,650 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility 10.71/6.01 [2019-03-28 12:47:31,650 INFO L71 MaximizeFinalStates]: 0 new accepting states 10.71/6.01 [2019-03-28 12:47:31,650 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding 10.71/6.01 [2019-03-28 12:47:31,651 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states 10.71/6.01 [2019-03-28 12:47:31,651 INFO L313 BlockEncoder]: Encoded RCFG 9 locations, 14 edges 10.71/6.01 [2019-03-28 12:47:31,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 28.03 12:47:31 BasicIcfg 10.71/6.01 [2019-03-28 12:47:31,652 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- 10.71/6.01 [2019-03-28 12:47:31,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- 10.71/6.01 [2019-03-28 12:47:31,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... 10.71/6.01 [2019-03-28 12:47:31,656 INFO L276 PluginConnector]: TraceAbstraction initialized 10.71/6.01 [2019-03-28 12:47:31,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.03 12:47:30" (1/4) ... 10.71/6.01 [2019-03-28 12:47:31,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aea9ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:31, skipping insertion in model container 10.71/6.01 [2019-03-28 12:47:31,658 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) ... 10.71/6.01 [2019-03-28 12:47:31,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aea9ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.03 12:47:31, skipping insertion in model container 10.71/6.01 [2019-03-28 12:47:31,658 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) ... 10.71/6.01 [2019-03-28 12:47:31,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aea9ae5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:31, skipping insertion in model container 10.71/6.01 [2019-03-28 12:47:31,659 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) ... 10.71/6.01 [2019-03-28 12:47:31,660 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 10.71/6.01 [2019-03-28 12:47:31,673 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION 10.71/6.01 [2019-03-28 12:47:31,682 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. 10.71/6.01 [2019-03-28 12:47:31,699 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. 10.71/6.01 [2019-03-28 12:47:31,728 INFO L133 ementStrategyFactory]: Using default assertion order modulation 10.71/6.01 [2019-03-28 12:47:31,729 INFO L382 AbstractCegarLoop]: Interprodecural is true 10.71/6.01 [2019-03-28 12:47:31,729 INFO L383 AbstractCegarLoop]: Hoare is true 10.71/6.01 [2019-03-28 12:47:31,729 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates 10.71/6.01 [2019-03-28 12:47:31,729 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE 10.71/6.01 [2019-03-28 12:47:31,729 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION 10.71/6.01 [2019-03-28 12:47:31,729 INFO L387 AbstractCegarLoop]: Difference is false 10.71/6.01 [2019-03-28 12:47:31,730 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA 10.71/6.01 [2019-03-28 12:47:31,730 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== 10.71/6.01 [2019-03-28 12:47:31,744 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. 10.71/6.01 [2019-03-28 12:47:31,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 10.71/6.01 [2019-03-28 12:47:31,751 INFO L394 BasicCegarLoop]: Found error trace 10.71/6.01 [2019-03-28 12:47:31,751 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] 10.71/6.01 [2019-03-28 12:47:31,752 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION]=== 10.71/6.01 [2019-03-28 12:47:31,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier 10.71/6.01 [2019-03-28 12:47:31,757 INFO L82 PathProgramCache]: Analyzing trace with hash 87686, now seen corresponding path program 1 times 10.71/6.01 [2019-03-28 12:47:31,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS 10.71/6.01 [2019-03-28 12:47:31,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy 10.71/6.01 [2019-03-28 12:47:31,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 10.71/6.01 [2019-03-28 12:47:31,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 10.71/6.01 [2019-03-28 12:47:31,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY 10.71/6.01 [2019-03-28 12:47:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 10.71/6.01 [2019-03-28 12:47:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat 10.71/6.01 [2019-03-28 12:47:31,893 INFO L469 BasicCegarLoop]: Counterexample might be feasible 10.71/6.01 [2019-03-28 12:47:31,915 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg 10.71/6.01 [2019-03-28 12:47:31,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.03 12:47:31 BasicIcfg 10.71/6.01 [2019-03-28 12:47:31,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- 10.71/6.01 [2019-03-28 12:47:31,919 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- 10.71/6.01 [2019-03-28 12:47:31,919 INFO L271 PluginConnector]: Initializing BuchiAutomizer... 10.71/6.01 [2019-03-28 12:47:31,922 INFO L276 PluginConnector]: BuchiAutomizer initialized 10.71/6.01 [2019-03-28 12:47:31,922 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 10.71/6.01 [2019-03-28 12:47:31,923 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 10.71/6.01 [2019-03-28 12:47:31,923 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 10.71/6.01 [2019-03-28 12:47:31,923 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 10.71/6.01 [2019-03-28 12:47:31,923 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination 10.71/6.01 [2019-03-28 12:47:31,923 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- 10.71/6.01 [2019-03-28 12:47:31,924 INFO L168 Benchmark]: Toolchain (without parser) took 1009.18 ms. Allocated memory was 649.6 MB in the beginning and 672.1 MB in the end (delta: 22.5 MB). Free memory was 563.7 MB in the beginning and 593.4 MB in the end (delta: -29.7 MB). There was no memory consumed. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,926 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. 10.71/6.01 [2019-03-28 12:47:31,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.91 ms. Allocated memory was 649.6 MB in the beginning and 672.1 MB in the end (delta: 22.5 MB). Free memory was 563.7 MB in the beginning and 637.7 MB in the end (delta: -74.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,927 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.85 ms. Allocated memory is still 672.1 MB. Free memory was 637.7 MB in the beginning and 634.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,928 INFO L168 Benchmark]: Boogie Preprocessor took 22.92 ms. Allocated memory is still 672.1 MB. Free memory was 634.9 MB in the beginning and 632.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,929 INFO L168 Benchmark]: RCFGBuilder took 275.49 ms. Allocated memory is still 672.1 MB. Free memory was 632.7 MB in the beginning and 614.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,929 INFO L168 Benchmark]: BlockEncodingV2 took 91.06 ms. Allocated memory is still 672.1 MB. Free memory was 614.9 MB in the beginning and 608.5 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,930 INFO L168 Benchmark]: TraceAbstraction took 265.12 ms. Allocated memory is still 672.1 MB. Free memory was 608.5 MB in the beginning and 594.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,931 INFO L168 Benchmark]: BuchiAutomizer took 4.63 ms. Allocated memory is still 672.1 MB. Free memory was 594.5 MB in the beginning and 593.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 10.71/6.01 [2019-03-28 12:47:31,935 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### 10.71/6.01 --- Results --- 10.71/6.01 * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: 10.71/6.01 - StatisticsResult: Initial Icfg 10.71/6.01 15 locations, 16 edges 10.71/6.01 - StatisticsResult: Encoded RCFG 10.71/6.01 9 locations, 14 edges 10.71/6.01 * Results from de.uni_freiburg.informatik.ultimate.core: 10.71/6.01 - StatisticsResult: Toolchain Benchmarks 10.71/6.01 Benchmark results are: 10.71/6.01 * 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. 10.71/6.01 * CACSL2BoogieTranslator took 305.91 ms. Allocated memory was 649.6 MB in the beginning and 672.1 MB in the end (delta: 22.5 MB). Free memory was 563.7 MB in the beginning and 637.7 MB in the end (delta: -74.0 MB). Peak memory consumption was 29.8 MB. Max. memory is 50.3 GB. 10.71/6.01 * Boogie Procedure Inliner took 38.85 ms. Allocated memory is still 672.1 MB. Free memory was 637.7 MB in the beginning and 634.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. 10.71/6.01 * Boogie Preprocessor took 22.92 ms. Allocated memory is still 672.1 MB. Free memory was 634.9 MB in the beginning and 632.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. 10.71/6.01 * RCFGBuilder took 275.49 ms. Allocated memory is still 672.1 MB. Free memory was 632.7 MB in the beginning and 614.9 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 50.3 GB. 10.71/6.01 * BlockEncodingV2 took 91.06 ms. Allocated memory is still 672.1 MB. Free memory was 614.9 MB in the beginning and 608.5 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 50.3 GB. 10.71/6.01 * TraceAbstraction took 265.12 ms. Allocated memory is still 672.1 MB. Free memory was 608.5 MB in the beginning and 594.5 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 50.3 GB. 10.71/6.01 * BuchiAutomizer took 4.63 ms. Allocated memory is still 672.1 MB. Free memory was 594.5 MB in the beginning and 593.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. 10.71/6.01 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: 10.71/6.01 - CounterExampleResult [Line: 6]: pointer dereference may fail 10.71/6.01 pointer dereference may fail 10.71/6.01 We found a FailurePath: 10.71/6.01 [L13] char* s2; 10.71/6.01 [L14] char* s1; 10.71/6.01 [L3] char *dst = s1; 10.71/6.01 [L4] const char *src = s2; 10.71/6.01 [L6] dst++ 10.71/6.01 [L6] src++ 10.71/6.01 10.71/6.01 - StatisticsResult: Ultimate Automizer benchmark data 10.71/6.01 CFG has 1 procedures, 9 locations, 4 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=9occurred 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 10.71/6.01 RESULT: Ultimate proved your program to be incorrect! 10.71/6.01 !SESSION 2019-03-28 12:47:27.369 ----------------------------------------------- 10.71/6.01 eclipse.buildId=unknown 10.71/6.01 java.version=1.8.0_181 10.71/6.01 java.vendor=Oracle Corporation 10.71/6.01 BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US 10.71/6.01 Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox/benchmark/theBenchmark.c 10.71/6.01 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 10.71/6.01 10.71/6.01 !ENTRY org.eclipse.core.resources 2 10035 2019-03-28 12:47:32.168 10.71/6.01 !MESSAGE The workspace will exit with unsaved changes in this session. 10.71/6.01 Received shutdown request... 10.71/6.01 Ultimate: 10.71/6.01 GTK+ Version Check 10.71/6.01 EOF