MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:16:10,223 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:16:10,225 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:16:10,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:16:10,237 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:16:10,237 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:16:10,239 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:16:10,240 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:16:10,242 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:16:10,242 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:16:10,243 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:16:10,244 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:16:10,244 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:16:10,245 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:16:10,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:16:10,247 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:16:10,248 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:16:10,249 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:16:10,252 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:16:10,253 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:16:10,254 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:16:10,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:16:10,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:16:10,257 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:16:10,258 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:16:10,258 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:16:10,259 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:16:10,260 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:16:10,260 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:16:10,260 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:16:10,261 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:16:10,262 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:16:10,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:16:10,263 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:16:10,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:16:10,264 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:16:10,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:16:10,265 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:16:10,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:16:10,266 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 08:16:10,280 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:16:10,280 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:16:10,281 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:16:10,281 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:16:10,281 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:16:10,281 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:16:10,282 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:16:10,282 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:16:10,282 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:16:10,282 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:16:10,282 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:16:10,282 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:16:10,283 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:16:10,283 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:16:10,283 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:16:10,283 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:16:10,283 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:16:10,283 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:16:10,284 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:16:10,284 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:16:10,284 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:16:10,284 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:16:10,284 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:16:10,285 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:16:10,285 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:16:10,285 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:16:10,285 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:16:10,285 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:16:10,285 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:16:10,310 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:16:10,323 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:16:10,326 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:16:10,328 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:16:10,328 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:16:10,329 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:16:10,389 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/ac025c8c8cd54867bb27da6476f8ea57/FLAG231e295b3 [2020-06-22 08:16:10,732 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:16:10,733 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:16:10,740 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/ac025c8c8cd54867bb27da6476f8ea57/FLAG231e295b3 [2020-06-22 08:16:11,150 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/ac025c8c8cd54867bb27da6476f8ea57 [2020-06-22 08:16:11,161 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:16:11,163 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:16:11,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:16:11,164 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:16:11,168 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:16:11,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,172 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12c04421 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,172 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:16:11,196 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:16:11,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:16:11,420 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:16:11,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:16:11,453 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:16:11,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11 WrapperNode [2020-06-22 08:16:11,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:16:11,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:16:11,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:16:11,455 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:16:11,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,472 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:16:11,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:16:11,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:16:11,494 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:16:11,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:16:11,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:16:11,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:16:11,515 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:16:11,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (1/1) ... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:16:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:16:11,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:16:11,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-22 08:16:11,739 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:16:11,739 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2020-06-22 08:16:11,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11 BoogieIcfgContainer [2020-06-22 08:16:11,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:16:11,741 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:16:11,742 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:16:11,744 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:16:11,744 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11" (1/1) ... [2020-06-22 08:16:11,759 INFO L313 BlockEncoder]: Initial Icfg 13 locations, 14 edges [2020-06-22 08:16:11,761 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:16:11,762 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:16:11,762 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:16:11,763 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:16:11,764 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:16:11,765 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:16:11,765 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:16:11,780 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:16:11,795 INFO L200 BlockEncoder]: SBE split 2 edges [2020-06-22 08:16:11,799 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 08:16:11,801 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:16:11,825 INFO L100 BaseMinimizeStates]: Removed 14 edges and 7 locations by large block encoding [2020-06-22 08:16:11,828 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 08:16:11,829 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:16:11,829 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:16:11,830 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:16:11,830 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:16:11,830 INFO L313 BlockEncoder]: Encoded RCFG 5 locations, 7 edges [2020-06-22 08:16:11,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:16:11 BasicIcfg [2020-06-22 08:16:11,831 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:16:11,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:16:11,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:16:11,836 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:16:11,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:16:11" (1/4) ... [2020-06-22 08:16:11,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3c0e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:16:11" (2/4) ... [2020-06-22 08:16:11,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3c0e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:16:11" (3/4) ... [2020-06-22 08:16:11,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3c0e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:16:11, skipping insertion in model container [2020-06-22 08:16:11,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:16:11" (4/4) ... [2020-06-22 08:16:11,841 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:16:11,851 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:16:11,859 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-06-22 08:16:11,877 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-06-22 08:16:11,907 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:16:11,908 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:16:11,908 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:16:11,908 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:16:11,908 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:16:11,908 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:16:11,908 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:16:11,909 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:16:11,909 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:16:11,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2020-06-22 08:16:11,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-06-22 08:16:11,929 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 08:16:11,929 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-06-22 08:16:11,930 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION]=== [2020-06-22 08:16:11,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:16:11,935 INFO L82 PathProgramCache]: Analyzing trace with hash 75869, now seen corresponding path program 1 times [2020-06-22 08:16:11,937 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:16:11,938 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:16:11,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:11,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:16:11,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:16:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:16:12,067 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2020-06-22 08:16:12,088 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-06-22 08:16:12,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:16:12 BasicIcfg [2020-06-22 08:16:12,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:16:12,092 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:16:12,092 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:16:12,095 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:16:12,096 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:16:12,096 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:16:12,096 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:16:12,096 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:16:12,096 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:16:12,096 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:16:12,097 INFO L168 Benchmark]: Toolchain (without parser) took 935.03 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 440.0 MB in the beginning and 490.5 MB in the end (delta: -50.5 MB). There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:16:12,099 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 459.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:16:12,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.39 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 439.5 MB in the beginning and 529.1 MB in the end (delta: -89.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.64 ms. Allocated memory is still 561.0 MB. Free memory was 529.1 MB in the beginning and 527.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,101 INFO L168 Benchmark]: Boogie Preprocessor took 21.37 ms. Allocated memory is still 561.0 MB. Free memory was 527.4 MB in the beginning and 525.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,102 INFO L168 Benchmark]: RCFGBuilder took 226.00 ms. Allocated memory is still 561.0 MB. Free memory was 525.8 MB in the beginning and 512.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,103 INFO L168 Benchmark]: BlockEncodingV2 took 89.69 ms. Allocated memory is still 561.0 MB. Free memory was 512.3 MB in the beginning and 505.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,103 INFO L168 Benchmark]: TraceAbstraction took 259.15 ms. Allocated memory is still 561.0 MB. Free memory was 504.7 MB in the beginning and 491.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,104 INFO L168 Benchmark]: BuchiAutomizer took 4.62 ms. Allocated memory is still 561.0 MB. Free memory was 491.1 MB in the beginning and 490.5 MB in the end (delta: 539.2 kB). Peak memory consumption was 539.2 kB. Max. memory is 50.3 GB. [2020-06-22 08:16:12,108 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 13 locations, 14 edges - StatisticsResult: Encoded RCFG 5 locations, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 514.9 MB. Free memory is still 459.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 290.39 ms. Allocated memory was 514.9 MB in the beginning and 561.0 MB in the end (delta: 46.1 MB). Free memory was 439.5 MB in the beginning and 529.1 MB in the end (delta: -89.6 MB). Peak memory consumption was 29.3 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 38.64 ms. Allocated memory is still 561.0 MB. Free memory was 529.1 MB in the beginning and 527.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 21.37 ms. Allocated memory is still 561.0 MB. Free memory was 527.4 MB in the beginning and 525.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 50.3 GB. * RCFGBuilder took 226.00 ms. Allocated memory is still 561.0 MB. Free memory was 525.8 MB in the beginning and 512.3 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 89.69 ms. Allocated memory is still 561.0 MB. Free memory was 512.3 MB in the beginning and 505.2 MB in the end (delta: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 50.3 GB. * TraceAbstraction took 259.15 ms. Allocated memory is still 561.0 MB. Free memory was 504.7 MB in the beginning and 491.6 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.62 ms. Allocated memory is still 561.0 MB. Free memory was 491.1 MB in the beginning and 490.5 MB in the end (delta: 539.2 kB). Peak memory consumption was 539.2 kB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 11]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L17] int* numbers; [L18] int array_size = __VERIFIER_nondet_int(); [L5] int i, sum; [L6] char* p; [L7] sum = 0 [L8] i = 0 [L8] COND TRUE i < array_size [L9] p = &(numbers[i]) [L10] p = p + 2 [L11] \read(*p) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 2 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=5occurred 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 RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 08:16:07.910 ----------------------------------------------- eclipse.buildId=unknown java.version=1.8.0_242 java.vendor=Oracle Corporation BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -i /export/starexec/sandbox2/benchmark/theBenchmark.c Command-line arguments: -os linux -ws gtk -arch x86_64 -consoleLog -data @user.home/.ultimate -tc ./../AutomizerAndBuchiAutomizerCInlineWithBlockEncoding.xml -s ./../termcomp2017.epf -data /export/starexec/sandbox2/tmp -i /export/starexec/sandbox2/benchmark/theBenchmark.c !ENTRY org.eclipse.core.resources 2 10035 2020-06-22 08:16:12.346 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check