YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 01:15:54,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 01:15:54,916 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 01:15:54,927 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 01:15:54,928 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 01:15:54,928 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 01:15:54,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 01:15:54,931 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 01:15:54,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 01:15:54,933 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 01:15:54,934 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 01:15:54,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 01:15:54,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 01:15:54,936 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 01:15:54,937 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 01:15:54,938 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 01:15:54,939 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 01:15:54,940 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 01:15:54,942 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 01:15:54,944 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 01:15:54,945 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 01:15:54,946 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 01:15:54,948 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 01:15:54,948 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 01:15:54,948 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 01:15:54,949 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 01:15:54,950 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 01:15:54,950 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 01:15:54,951 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 01:15:54,951 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 01:15:54,952 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 01:15:54,953 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 01:15:54,954 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 01:15:54,954 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 01:15:54,954 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 01:15:54,955 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 01:15:54,955 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 01:15:54,956 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 01:15:54,956 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 01:15:54,957 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 01:15:54,971 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 01:15:54,971 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 01:15:54,972 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 01:15:54,972 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 01:15:54,972 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 01:15:54,973 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:15:54,973 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 01:15:54,973 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 01:15:54,973 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 01:15:54,973 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 01:15:54,974 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 01:15:54,974 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 01:15:54,974 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 01:15:54,974 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 01:15:54,974 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 01:15:54,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 01:15:54,975 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 01:15:54,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 01:15:54,975 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 01:15:54,975 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 01:15:54,975 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 01:15:54,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 01:15:54,976 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 01:15:54,976 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 01:15:54,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 01:15:54,976 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 01:15:54,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 01:15:54,976 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 01:15:54,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 01:15:55,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 01:15:55,015 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 01:15:55,018 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 01:15:55,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 01:15:55,020 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 01:15:55,021 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:15:55,083 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/3a081abb95fa465ea72a51fbda76d467/FLAG3afe5c798 [2020-06-22 01:15:55,495 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 01:15:55,495 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 01:15:55,502 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/3a081abb95fa465ea72a51fbda76d467/FLAG3afe5c798 [2020-06-22 01:15:55,903 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/3a081abb95fa465ea72a51fbda76d467 [2020-06-22 01:15:55,915 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 01:15:55,916 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 01:15:55,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 01:15:55,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 01:15:55,921 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 01:15:55,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:15:55" (1/1) ... [2020-06-22 01:15:55,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f6c7c4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:55, skipping insertion in model container [2020-06-22 01:15:55,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 01:15:55" (1/1) ... [2020-06-22 01:15:55,932 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 01:15:55,949 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 01:15:56,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:15:56,103 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 01:15:56,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 01:15:56,186 INFO L195 MainTranslator]: Completed translation [2020-06-22 01:15:56,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56 WrapperNode [2020-06-22 01:15:56,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 01:15:56,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 01:15:56,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 01:15:56,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 01:15:56,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 01:15:56,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 01:15:56,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 01:15:56,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 01:15:56,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,231 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,231 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 01:15:56,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 01:15:56,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 01:15:56,239 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 01:15:56,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (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 01:15:56,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 01:15:56,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 01:15:56,428 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 01:15:56,428 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 01:15:56,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:56 BoogieIcfgContainer [2020-06-22 01:15:56,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 01:15:56,430 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 01:15:56,430 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 01:15:56,433 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 01:15:56,433 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:56" (1/1) ... [2020-06-22 01:15:56,447 INFO L313 BlockEncoder]: Initial Icfg 7 locations, 9 edges [2020-06-22 01:15:56,449 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 01:15:56,450 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 01:15:56,450 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 01:15:56,451 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 01:15:56,453 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 01:15:56,453 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 01:15:56,454 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 01:15:56,468 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 01:15:56,481 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 01:15:56,486 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 01:15:56,487 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:15:56,497 INFO L100 BaseMinimizeStates]: Removed 4 edges and 2 locations by large block encoding [2020-06-22 01:15:56,499 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2020-06-22 01:15:56,501 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 01:15:56,501 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 01:15:56,501 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 01:15:56,501 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 01:15:56,502 INFO L313 BlockEncoder]: Encoded RCFG 3 locations, 4 edges [2020-06-22 01:15:56,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:15:56 BasicIcfg [2020-06-22 01:15:56,502 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 01:15:56,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 01:15:56,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 01:15:56,507 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 01:15:56,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 01:15:55" (1/4) ... [2020-06-22 01:15:56,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ba0c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (2/4) ... [2020-06-22 01:15:56,508 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ba0c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:56" (3/4) ... [2020-06-22 01:15:56,509 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49ba0c70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:15:56" (4/4) ... [2020-06-22 01:15:56,510 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:15:56,520 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 01:15:56,527 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 01:15:56,544 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 01:15:56,572 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:15:56,572 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 01:15:56,573 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 01:15:56,573 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:15:56,573 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:15:56,573 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:15:56,573 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 01:15:56,573 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:15:56,574 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 01:15:56,587 INFO L276 IsEmpty]: Start isEmpty. Operand 3 states. [2020-06-22 01:15:56,592 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 01:15:56,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 3 states. [2020-06-22 01:15:56,599 INFO L448 ceAbstractionStarter]: For program point L18-1(lines 5 21) no Hoare annotation was computed. [2020-06-22 01:15:56,600 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 01:15:56,600 INFO L448 ceAbstractionStarter]: For program point L13(lines 13 17) no Hoare annotation was computed. [2020-06-22 01:15:56,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:15:56 BasicIcfg [2020-06-22 01:15:56,603 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 01:15:56,603 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 01:15:56,604 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 01:15:56,607 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 01:15:56,608 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:15:56,608 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 01:15:55" (1/5) ... [2020-06-22 01:15:56,609 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ccaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,609 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:15:56,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 01:15:56" (2/5) ... [2020-06-22 01:15:56,610 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ccaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,610 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:15:56,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 01:15:56" (3/5) ... [2020-06-22 01:15:56,610 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ccaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,610 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:15:56,610 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 01:15:56" (4/5) ... [2020-06-22 01:15:56,611 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@729ccaf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:15:56, skipping insertion in model container [2020-06-22 01:15:56,611 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 01:15:56,611 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 01:15:56" (5/5) ... [2020-06-22 01:15:56,612 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 01:15:56,641 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 01:15:56,641 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 01:15:56,641 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 01:15:56,642 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 01:15:56,642 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 01:15:56,642 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 01:15:56,642 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 01:15:56,642 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 01:15:56,642 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 01:15:56,645 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:15:56,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 01:15:56,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:15:56,663 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:15:56,668 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:15:56,668 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:15:56,668 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 01:15:56,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-06-22 01:15:56,669 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 01:15:56,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:15:56,669 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:15:56,669 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:15:56,670 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:15:56,675 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [23] ULTIMATE.startENTRY-->L13: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 5#L13true [28] L13-->L18-1: Formula: (and (< 10 v_ULTIMATE.start_main_~i~0_6) (= v_ULTIMATE.start_main_~x~0_6 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_6} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L18-1true [2020-06-22 01:15:56,675 INFO L796 eck$LassoCheckResult]: Loop: 4#L18-1true [27] L18-1-->L18-1: Formula: (= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 4#L18-1true [2020-06-22 01:15:56,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:15:56,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1702, now seen corresponding path program 1 times [2020-06-22 01:15:56,683 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:15:56,683 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:15:56,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:15:56,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:15:56,788 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-06-22 01:15:56,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:15:56,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:15:56,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:15:56,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:15:56,795 INFO L82 PathProgramCache]: Analyzing trace with hash 52789, now seen corresponding path program 1 times [2020-06-22 01:15:56,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:15:56,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:15:56,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:15:56,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:15:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:15:56,862 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:15:56,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:15:56,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:15:56,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:15:56,898 INFO L87 Difference]: Start difference. First operand 3 states. Second operand 4 states. [2020-06-22 01:15:56,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:15:56,931 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2020-06-22 01:15:56,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 01:15:56,936 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 4 states and 4 transitions. [2020-06-22 01:15:56,936 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 01:15:56,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 4 states to 3 states and 3 transitions. [2020-06-22 01:15:56,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2020-06-22 01:15:56,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 3 [2020-06-22 01:15:56,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 3 transitions. [2020-06-22 01:15:56,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:15:56,942 INFO L706 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 01:15:56,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3 states and 3 transitions. [2020-06-22 01:15:56,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3 to 3. [2020-06-22 01:15:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-06-22 01:15:56,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 3 transitions. [2020-06-22 01:15:56,971 INFO L729 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 01:15:56,971 INFO L609 BuchiCegarLoop]: Abstraction has 3 states and 3 transitions. [2020-06-22 01:15:56,971 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 01:15:56,971 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states and 3 transitions. [2020-06-22 01:15:56,972 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 01:15:56,972 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 01:15:56,972 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 01:15:56,972 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-06-22 01:15:56,972 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 01:15:56,973 INFO L794 eck$LassoCheckResult]: Stem: 21#ULTIMATE.startENTRY [23] ULTIMATE.startENTRY-->L13: Formula: (and (= v_ULTIMATE.start_main_~y~0_1 0) (= v_ULTIMATE.start_main_~x~0_1 0) (= v_ULTIMATE.start_main_~i~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|)) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_1, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_1, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_1|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~x~0] 22#L13 [32] L13-->L18-1: Formula: (and (>= 10 v_ULTIMATE.start_main_~i~0_7) (= v_ULTIMATE.start_main_~y~0_6 1)) InVars {ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_6, ULTIMATE.start_main_~i~0=v_ULTIMATE.start_main_~i~0_7} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0] 23#L18-1 [2020-06-22 01:15:56,973 INFO L796 eck$LassoCheckResult]: Loop: 23#L18-1 [27] L18-1-->L18-1: Formula: (= v_ULTIMATE.start_main_~x~0_8 v_ULTIMATE.start_main_~y~0_8) InVars {ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} OutVars{ULTIMATE.start_main_~y~0=v_ULTIMATE.start_main_~y~0_8, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_8} AuxVars[] AssignedVars[] 23#L18-1 [2020-06-22 01:15:56,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:15:56,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1706, now seen corresponding path program 1 times [2020-06-22 01:15:56,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:15:56,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:15:56,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:15:56,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:15:56,983 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 2 times [2020-06-22 01:15:56,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:15:56,983 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:15:56,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 01:15:56,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 01:15:56,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 01:15:56,988 INFO L82 PathProgramCache]: Analyzing trace with hash 52913, now seen corresponding path program 1 times [2020-06-22 01:15:56,988 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 01:15:56,988 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 01:15:56,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,990 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 01:15:56,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 01:15:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 01:15:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-06-22 01:15:57,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 01:15:57,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-06-22 01:15:57,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-06-22 01:15:57,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-06-22 01:15:57,028 INFO L87 Difference]: Start difference. First operand 3 states and 3 transitions. cyclomatic complexity: 1 Second operand 4 states. [2020-06-22 01:15:57,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 01:15:57,042 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2020-06-22 01:15:57,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-06-22 01:15:57,043 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 2 transitions. [2020-06-22 01:15:57,043 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:15:57,043 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-06-22 01:15:57,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 01:15:57,044 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 01:15:57,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 01:15:57,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 01:15:57,044 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:15:57,044 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:15:57,044 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 01:15:57,044 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 01:15:57,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 01:15:57,045 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 01:15:57,045 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 01:15:57,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 01:15:57 BasicIcfg [2020-06-22 01:15:57,050 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 01:15:57,051 INFO L168 Benchmark]: Toolchain (without parser) took 1135.39 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 565.1 MB in the beginning and 584.1 MB in the end (delta: -18.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,052 INFO L168 Benchmark]: CDTParser took 0.16 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 01:15:57,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.00 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 565.1 MB in the beginning and 650.5 MB in the end (delta: -85.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 682.6 MB. Free memory was 650.5 MB in the beginning and 649.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,054 INFO L168 Benchmark]: Boogie Preprocessor took 18.20 ms. Allocated memory is still 682.6 MB. Free memory was 649.4 MB in the beginning and 646.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,055 INFO L168 Benchmark]: RCFGBuilder took 190.93 ms. Allocated memory is still 682.6 MB. Free memory was 646.5 MB in the beginning and 633.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,056 INFO L168 Benchmark]: BlockEncodingV2 took 72.02 ms. Allocated memory is still 682.6 MB. Free memory was 632.7 MB in the beginning and 627.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,056 INFO L168 Benchmark]: TraceAbstraction took 99.69 ms. Allocated memory is still 682.6 MB. Free memory was 627.3 MB in the beginning and 619.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,057 INFO L168 Benchmark]: BuchiAutomizer took 446.74 ms. Allocated memory is still 682.6 MB. Free memory was 619.8 MB in the beginning and 584.1 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 50.3 GB. [2020-06-22 01:15:57,061 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 7 locations, 9 edges - StatisticsResult: Encoded RCFG 3 locations, 4 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 270.00 ms. Allocated memory was 649.6 MB in the beginning and 682.6 MB in the end (delta: 33.0 MB). Free memory was 565.1 MB in the beginning and 650.5 MB in the end (delta: -85.3 MB). Peak memory consumption was 30.6 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 32.79 ms. Allocated memory is still 682.6 MB. Free memory was 650.5 MB in the beginning and 649.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.20 ms. Allocated memory is still 682.6 MB. Free memory was 649.4 MB in the beginning and 646.5 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 50.3 GB. * RCFGBuilder took 190.93 ms. Allocated memory is still 682.6 MB. Free memory was 646.5 MB in the beginning and 633.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 72.02 ms. Allocated memory is still 682.6 MB. Free memory was 632.7 MB in the beginning and 627.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 99.69 ms. Allocated memory is still 682.6 MB. Free memory was 627.3 MB in the beginning and 619.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 446.74 ms. Allocated memory is still 682.6 MB. Free memory was 619.8 MB in the beginning and 584.1 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 50.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 3 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3occurred 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: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic). 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 3 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 8 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 01:15:52.603 ----------------------------------------------- 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 01:15:57.294 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check