MAYBE Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 08:31:53,452 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 08:31:53,454 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 08:31:53,465 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 08:31:53,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 08:31:53,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 08:31:53,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 08:31:53,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 08:31:53,470 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 08:31:53,471 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 08:31:53,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 08:31:53,472 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 08:31:53,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 08:31:53,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 08:31:53,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 08:31:53,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 08:31:53,476 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 08:31:53,478 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 08:31:53,480 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 08:31:53,481 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 08:31:53,482 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 08:31:53,483 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 08:31:53,486 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 08:31:53,486 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 08:31:53,486 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 08:31:53,487 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 08:31:53,487 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 08:31:53,488 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 08:31:53,488 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 08:31:53,489 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 08:31:53,490 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 08:31:53,490 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 08:31:53,491 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 08:31:53,491 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 08:31:53,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 08:31:53,492 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 08:31:53,492 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 08:31:53,493 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 08:31:53,494 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 08:31:53,494 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 08:31:53,508 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 08:31:53,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 08:31:53,510 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 08:31:53,510 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 08:31:53,510 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 08:31:53,511 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:31:53,511 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 08:31:53,511 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 08:31:53,511 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 08:31:53,511 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 08:31:53,512 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 08:31:53,512 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 08:31:53,512 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 08:31:53,512 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 08:31:53,512 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 08:31:53,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 08:31:53,513 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 08:31:53,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 08:31:53,513 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 08:31:53,513 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 08:31:53,513 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 08:31:53,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 08:31:53,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 08:31:53,514 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 08:31:53,514 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 08:31:53,514 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 08:31:53,514 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 08:31:53,515 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 08:31:53,515 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 08:31:53,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 08:31:53,553 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 08:31:53,557 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 08:31:53,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 08:31:53,558 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 08:31:53,559 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:31:53,622 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/ca8b669ef209433ea1fd4ac535bf074a/FLAGe52a51088 [2020-06-22 08:31:53,957 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 08:31:53,958 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 08:31:53,964 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/ca8b669ef209433ea1fd4ac535bf074a/FLAGe52a51088 [2020-06-22 08:31:54,391 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/ca8b669ef209433ea1fd4ac535bf074a [2020-06-22 08:31:54,403 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 08:31:54,404 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 08:31:54,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 08:31:54,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 08:31:54,409 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 08:31:54,410 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49cbb7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54, skipping insertion in model container [2020-06-22 08:31:54,413 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 08:31:54,440 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 08:31:54,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:31:54,686 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 08:31:54,707 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 08:31:54,723 INFO L195 MainTranslator]: Completed translation [2020-06-22 08:31:54,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54 WrapperNode [2020-06-22 08:31:54,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 08:31:54,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 08:31:54,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 08:31:54,725 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 08:31:54,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,745 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 08:31:54,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 08:31:54,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 08:31:54,769 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 08:31:54,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,792 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (1/1) ... [2020-06-22 08:31:54,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 08:31:54,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 08:31:54,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 08:31:54,795 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 08:31:54,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (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 08:31:54,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-06-22 08:31:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 08:31:54,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 08:31:54,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-06-22 08:31:55,175 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 08:31:55,175 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2020-06-22 08:31:55,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:31:55 BoogieIcfgContainer [2020-06-22 08:31:55,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 08:31:55,177 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 08:31:55,177 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 08:31:55,179 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 08:31:55,180 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:31:55" (1/1) ... [2020-06-22 08:31:55,198 INFO L313 BlockEncoder]: Initial Icfg 43 locations, 48 edges [2020-06-22 08:31:55,200 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 08:31:55,200 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 08:31:55,201 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 08:31:55,201 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 08:31:55,203 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 08:31:55,204 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 08:31:55,204 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 08:31:55,228 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 08:31:55,254 INFO L200 BlockEncoder]: SBE split 20 edges [2020-06-22 08:31:55,259 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2020-06-22 08:31:55,261 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:31:55,285 INFO L100 BaseMinimizeStates]: Removed 12 edges and 6 locations by large block encoding [2020-06-22 08:31:55,288 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 08:31:55,290 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 08:31:55,290 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 08:31:55,290 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 08:31:55,291 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 08:31:55,291 INFO L313 BlockEncoder]: Encoded RCFG 36 locations, 59 edges [2020-06-22 08:31:55,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:31:55 BasicIcfg [2020-06-22 08:31:55,292 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 08:31:55,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 08:31:55,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 08:31:55,296 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 08:31:55,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 08:31:54" (1/4) ... [2020-06-22 08:31:55,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2d6bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:31:55, skipping insertion in model container [2020-06-22 08:31:55,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 08:31:54" (2/4) ... [2020-06-22 08:31:55,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2d6bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 08:31:55, skipping insertion in model container [2020-06-22 08:31:55,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 08:31:55" (3/4) ... [2020-06-22 08:31:55,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2d6bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:31:55, skipping insertion in model container [2020-06-22 08:31:55,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 08:31:55" (4/4) ... [2020-06-22 08:31:55,301 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 08:31:55,311 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 08:31:55,320 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 20 error locations. [2020-06-22 08:31:55,337 INFO L257 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-06-22 08:31:55,366 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 08:31:55,367 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 08:31:55,367 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 08:31:55,368 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 08:31:55,368 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 08:31:55,368 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 08:31:55,368 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 08:31:55,368 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 08:31:55,368 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 08:31:55,384 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-06-22 08:31:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-06-22 08:31:55,390 INFO L394 BasicCegarLoop]: Found error trace [2020-06-22 08:31:55,390 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-06-22 08:31:55,391 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr8REQUIRES_VIOLATION, ULTIMATE.startErr18REQUIRES_VIOLATION, ULTIMATE.startErr7REQUIRES_VIOLATION, ULTIMATE.startErr17REQUIRES_VIOLATION, ULTIMATE.startErr6REQUIRES_VIOLATION, ULTIMATE.startErr16REQUIRES_VIOLATION, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr15REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr14REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr13REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr12REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr11REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr10REQUIRES_VIOLATION, ULTIMATE.startErr9REQUIRES_VIOLATION, ULTIMATE.startErr19REQUIRES_VIOLATION]=== [2020-06-22 08:31:55,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 08:31:55,396 INFO L82 PathProgramCache]: Analyzing trace with hash 6583120, now seen corresponding path program 1 times [2020-06-22 08:31:55,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 08:31:55,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 08:31:55,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:31:55,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 08:31:55,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 08:31:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:31:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 08:31:55,531 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2020-06-22 08:31:55,557 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2020-06-22 08:31:55,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 08:31:55 BasicIcfg [2020-06-22 08:31:55,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 08:31:55,561 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 08:31:55,561 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 08:31:55,564 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 08:31:55,565 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:31:55,565 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:31:55,565 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:31:55,565 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:31:55,565 INFO L99 BuchiAutomizer]: Another Plugin discovered errors, I will not analyze termination [2020-06-22 08:31:55,565 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 08:31:55,566 INFO L168 Benchmark]: Toolchain (without parser) took 1162.68 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 565.2 MB in the beginning and 593.2 MB in the end (delta: -28.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,568 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. [2020-06-22 08:31:55,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 319.56 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 565.2 MB in the beginning and 654.6 MB in the end (delta: -89.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,570 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.40 ms. Allocated memory is still 691.5 MB. Free memory was 654.6 MB in the beginning and 652.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,570 INFO L168 Benchmark]: Boogie Preprocessor took 26.02 ms. Allocated memory is still 691.5 MB. Free memory was 652.5 MB in the beginning and 651.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,571 INFO L168 Benchmark]: RCFGBuilder took 381.80 ms. Allocated memory is still 691.5 MB. Free memory was 651.4 MB in the beginning and 624.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,572 INFO L168 Benchmark]: BlockEncodingV2 took 114.96 ms. Allocated memory is still 691.5 MB. Free memory was 624.6 MB in the beginning and 614.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,572 INFO L168 Benchmark]: TraceAbstraction took 267.49 ms. Allocated memory is still 691.5 MB. Free memory was 614.8 MB in the beginning and 594.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,573 INFO L168 Benchmark]: BuchiAutomizer took 4.34 ms. Allocated memory is still 691.5 MB. Free memory was 594.3 MB in the beginning and 593.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 08:31:55,577 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 43 locations, 48 edges - StatisticsResult: Encoded RCFG 36 locations, 59 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 649.6 MB. Free memory is still 585.7 MB. There was no memory consumed. Max. memory is 50.3 GB. * CACSL2BoogieTranslator took 319.56 ms. Allocated memory was 649.6 MB in the beginning and 691.5 MB in the end (delta: 41.9 MB). Free memory was 565.2 MB in the beginning and 654.6 MB in the end (delta: -89.5 MB). Peak memory consumption was 29.2 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 43.40 ms. Allocated memory is still 691.5 MB. Free memory was 654.6 MB in the beginning and 652.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 26.02 ms. Allocated memory is still 691.5 MB. Free memory was 652.5 MB in the beginning and 651.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * RCFGBuilder took 381.80 ms. Allocated memory is still 691.5 MB. Free memory was 651.4 MB in the beginning and 624.6 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 114.96 ms. Allocated memory is still 691.5 MB. Free memory was 624.6 MB in the beginning and 614.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 50.3 GB. * TraceAbstraction took 267.49 ms. Allocated memory is still 691.5 MB. Free memory was 614.8 MB in the beginning and 594.3 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 4.34 ms. Allocated memory is still 691.5 MB. Free memory was 594.3 MB in the beginning and 593.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L19] int *size; [L20] int *val; [L21] int N = __VERIFIER_nondet_int(); [L22] int *cost; [L23] int *best; [L24] int M = __VERIFIER_nondet_int(); [L5] int i, j; [L6] j = 1 [L6] COND TRUE j <= N [L7] i = 1 [L7] COND TRUE i <= M [L8] size[j] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 20 error locations. UNSAFE Result, 0.2s 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=36occurred 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 RESULT: Ultimate proved your program to be incorrect! !SESSION 2020-06-22 08:31:51.165 ----------------------------------------------- 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 08:31:55.808 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check