YES Ultimate: Cannot open display: This is Ultimate 0.1.24-8dc7c08-m [2020-06-22 02:18:52,775 INFO L170 SettingsManager]: Resetting all preferences to default values... [2020-06-22 02:18:52,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2020-06-22 02:18:52,788 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-06-22 02:18:52,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-06-22 02:18:52,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-06-22 02:18:52,791 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-06-22 02:18:52,792 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2020-06-22 02:18:52,794 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-06-22 02:18:52,795 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-06-22 02:18:52,795 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-06-22 02:18:52,796 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-06-22 02:18:52,797 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-06-22 02:18:52,797 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-06-22 02:18:52,798 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-06-22 02:18:52,799 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-06-22 02:18:52,800 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-06-22 02:18:52,802 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-06-22 02:18:52,804 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2020-06-22 02:18:52,805 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-06-22 02:18:52,806 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-06-22 02:18:52,807 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-06-22 02:18:52,809 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-06-22 02:18:52,809 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-06-22 02:18:52,809 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-06-22 02:18:52,810 INFO L174 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-06-22 02:18:52,811 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-06-22 02:18:52,812 INFO L177 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-06-22 02:18:52,812 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-06-22 02:18:52,813 INFO L174 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-06-22 02:18:52,813 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-06-22 02:18:52,814 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2020-06-22 02:18:52,815 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-06-22 02:18:52,815 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2020-06-22 02:18:52,815 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-06-22 02:18:52,816 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-06-22 02:18:52,816 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2020-06-22 02:18:52,817 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2020-06-22 02:18:52,817 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2020-06-22 02:18:52,818 INFO L98 SettingsManager]: Beginning loading settings from /export/starexec/sandbox2/solver/bin/./../termcomp2017.epf [2020-06-22 02:18:52,832 INFO L110 SettingsManager]: Loading preferences was successful [2020-06-22 02:18:52,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2020-06-22 02:18:52,834 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-06-22 02:18:52,834 INFO L133 SettingsManager]: * Rewrite not-equals=true [2020-06-22 02:18:52,834 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2020-06-22 02:18:52,834 INFO L133 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:18:52,834 INFO L133 SettingsManager]: * Use SBE=true [2020-06-22 02:18:52,834 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-06-22 02:18:52,835 INFO L133 SettingsManager]: * Use old map elimination=false [2020-06-22 02:18:52,835 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2020-06-22 02:18:52,835 INFO L133 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2020-06-22 02:18:52,835 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2020-06-22 02:18:52,835 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-06-22 02:18:52,836 INFO L133 SettingsManager]: * Construct termination proof for TermComp=true [2020-06-22 02:18:52,836 INFO L133 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:18:52,836 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-06-22 02:18:52,836 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-06-22 02:18:52,836 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2020-06-22 02:18:52,836 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2020-06-22 02:18:52,837 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-06-22 02:18:52,837 INFO L133 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2020-06-22 02:18:52,837 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-06-22 02:18:52,837 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-06-22 02:18:52,837 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-06-22 02:18:52,838 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2020-06-22 02:18:52,838 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-06-22 02:18:52,838 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-06-22 02:18:52,838 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2020-06-22 02:18:52,838 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-06-22 02:18:52,865 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-06-22 02:18:52,879 INFO L259 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-06-22 02:18:52,883 INFO L215 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-06-22 02:18:52,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-06-22 02:18:52,884 INFO L276 PluginConnector]: CDTParser initialized [2020-06-22 02:18:52,885 INFO L430 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:18:52,958 INFO L221 CDTParser]: Created temporary CDT project at /export/starexec/sandbox2/tmp/653257813a6d4c5983db74c51faa0b3a/FLAGaf0705a57 [2020-06-22 02:18:53,312 INFO L307 CDTParser]: Found 1 translation units. [2020-06-22 02:18:53,313 INFO L161 CDTParser]: Scanning /export/starexec/sandbox2/benchmark/theBenchmark.c [2020-06-22 02:18:53,320 INFO L355 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox2/tmp/653257813a6d4c5983db74c51faa0b3a/FLAGaf0705a57 [2020-06-22 02:18:53,717 INFO L363 CDTParser]: Successfully deleted /export/starexec/sandbox2/tmp/653257813a6d4c5983db74c51faa0b3a [2020-06-22 02:18:53,728 INFO L297 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-06-22 02:18:53,730 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2020-06-22 02:18:53,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-06-22 02:18:53,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-06-22 02:18:53,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2020-06-22 02:18:53,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:18:53" (1/1) ... [2020-06-22 02:18:53,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f8d1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:53, skipping insertion in model container [2020-06-22 02:18:53,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.06 02:18:53" (1/1) ... [2020-06-22 02:18:53,747 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-06-22 02:18:53,762 INFO L176 MainTranslator]: Built tables and reachable declarations [2020-06-22 02:18:53,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:18:53,920 INFO L191 MainTranslator]: Completed pre-run [2020-06-22 02:18:53,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-06-22 02:18:54,002 INFO L195 MainTranslator]: Completed translation [2020-06-22 02:18:54,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54 WrapperNode [2020-06-22 02:18:54,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-06-22 02:18:54,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-06-22 02:18:54,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-06-22 02:18:54,003 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2020-06-22 02:18:54,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-06-22 02:18:54,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-06-22 02:18:54,038 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-06-22 02:18:54,038 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2020-06-22 02:18:54,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,054 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,055 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,056 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-06-22 02:18:54,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-06-22 02:18:54,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-06-22 02:18:54,057 INFO L276 PluginConnector]: RCFGBuilder initialized [2020-06-22 02:18:54,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (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 02:18:54,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-06-22 02:18:54,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-06-22 02:18:54,240 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-06-22 02:18:54,240 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2020-06-22 02:18:54,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:18:54 BoogieIcfgContainer [2020-06-22 02:18:54,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-06-22 02:18:54,242 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2020-06-22 02:18:54,242 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2020-06-22 02:18:54,245 INFO L276 PluginConnector]: BlockEncodingV2 initialized [2020-06-22 02:18:54,245 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:18:54" (1/1) ... [2020-06-22 02:18:54,259 INFO L313 BlockEncoder]: Initial Icfg 6 locations, 7 edges [2020-06-22 02:18:54,260 INFO L258 BlockEncoder]: Using Remove infeasible edges [2020-06-22 02:18:54,261 INFO L263 BlockEncoder]: Using Maximize final states [2020-06-22 02:18:54,262 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2020-06-22 02:18:54,262 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2020-06-22 02:18:54,264 INFO L296 BlockEncoder]: Using Remove sink states [2020-06-22 02:18:54,265 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2020-06-22 02:18:54,265 INFO L179 BlockEncoder]: Using Rewrite not-equals [2020-06-22 02:18:54,281 INFO L185 BlockEncoder]: Using Use SBE [2020-06-22 02:18:54,296 INFO L200 BlockEncoder]: SBE split 1 edges [2020-06-22 02:18:54,301 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2020-06-22 02:18:54,303 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:18:54,316 INFO L100 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2020-06-22 02:18:54,318 INFO L70 RemoveSinkStates]: Removed 1 edges and 1 locations by removing sink states [2020-06-22 02:18:54,319 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2020-06-22 02:18:54,319 INFO L71 MaximizeFinalStates]: 0 new accepting states [2020-06-22 02:18:54,320 INFO L100 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2020-06-22 02:18:54,320 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2020-06-22 02:18:54,320 INFO L313 BlockEncoder]: Encoded RCFG 2 locations, 5 edges [2020-06-22 02:18:54,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:18:54 BasicIcfg [2020-06-22 02:18:54,321 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2020-06-22 02:18:54,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-06-22 02:18:54,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-06-22 02:18:54,325 INFO L276 PluginConnector]: TraceAbstraction initialized [2020-06-22 02:18:54,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.06 02:18:53" (1/4) ... [2020-06-22 02:18:54,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700e9d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (2/4) ... [2020-06-22 02:18:54,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700e9d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:18:54" (3/4) ... [2020-06-22 02:18:54,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700e9d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:18:54" (4/4) ... [2020-06-22 02:18:54,329 INFO L112 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:18:54,339 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2020-06-22 02:18:54,346 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-06-22 02:18:54,363 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-06-22 02:18:54,392 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:18:54,393 INFO L382 AbstractCegarLoop]: Interprodecural is true [2020-06-22 02:18:54,393 INFO L383 AbstractCegarLoop]: Hoare is true [2020-06-22 02:18:54,393 INFO L384 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:18:54,393 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:18:54,393 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:18:54,393 INFO L387 AbstractCegarLoop]: Difference is false [2020-06-22 02:18:54,394 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:18:54,394 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-06-22 02:18:54,407 INFO L276 IsEmpty]: Start isEmpty. Operand 2 states. [2020-06-22 02:18:54,413 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-06-22 02:18:54,416 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 2 states. [2020-06-22 02:18:54,464 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-06-22 02:18:54,465 INFO L451 ceAbstractionStarter]: At program point L13-2(lines 13 15) the Hoare annotation is: true [2020-06-22 02:18:54,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:18:54 BasicIcfg [2020-06-22 02:18:54,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-06-22 02:18:54,473 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-06-22 02:18:54,473 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-06-22 02:18:54,476 INFO L276 PluginConnector]: BuchiAutomizer initialized [2020-06-22 02:18:54,477 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:18:54,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.06 02:18:53" (1/5) ... [2020-06-22 02:18:54,478 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@554cc732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,478 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:18:54,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.06 02:18:54" (2/5) ... [2020-06-22 02:18:54,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@554cc732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,479 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:18:54,479 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.06 02:18:54" (3/5) ... [2020-06-22 02:18:54,479 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@554cc732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,479 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:18:54,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 22.06 02:18:54" (4/5) ... [2020-06-22 02:18:54,480 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@554cc732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:18:54, skipping insertion in model container [2020-06-22 02:18:54,480 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-06-22 02:18:54,480 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.06 02:18:54" (5/5) ... [2020-06-22 02:18:54,482 INFO L375 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2020-06-22 02:18:54,508 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2020-06-22 02:18:54,508 INFO L374 BuchiCegarLoop]: Interprodecural is true [2020-06-22 02:18:54,509 INFO L375 BuchiCegarLoop]: Hoare is true [2020-06-22 02:18:54,509 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-06-22 02:18:54,509 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-06-22 02:18:54,509 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-06-22 02:18:54,509 INFO L379 BuchiCegarLoop]: Difference is false [2020-06-22 02:18:54,510 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-06-22 02:18:54,510 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-06-22 02:18:54,513 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 02:18:54,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:18:54,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:18:54,531 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:18:54,536 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:18:54,537 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:18:54,537 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2020-06-22 02:18:54,537 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-06-22 02:18:54,537 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:18:54,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:18:54,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:18:54,538 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:18:54,538 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:18:54,543 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [19] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~x~0_1 |v_ULTIMATE.start_main_#t~nondet0_4|) InVars {} OutVars{ULTIMATE.start_main_#t~nondet0=|v_ULTIMATE.start_main_#t~nondet0_1|, ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 4#L13-2true [2020-06-22 02:18:54,543 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true [27] L13-2-->L13-2: Formula: (and (< (mod v_ULTIMATE.start_main_~x~0_6 2) 0) (< v_ULTIMATE.start_main_~x~0_6 0) (= (+ (div v_ULTIMATE.start_main_~x~0_6 2) 1) v_ULTIMATE.start_main_~x~0_5) (< 0 v_ULTIMATE.start_main_~x~0_6)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 4#L13-2true [2020-06-22 02:18:54,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:18:54,550 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2020-06-22 02:18:54,551 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:18:54,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:18:54,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:18:54,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:18:54,611 INFO L82 PathProgramCache]: Analyzing trace with hash 58, now seen corresponding path program 1 times [2020-06-22 02:18:54,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:18:54,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:18:54,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:18:54,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:18:54,651 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 02:18:54,653 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-06-22 02:18:54,654 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2020-06-22 02:18:54,659 INFO L811 eck$LassoCheckResult]: loop already infeasible [2020-06-22 02:18:54,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-06-22 02:18:54,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-06-22 02:18:54,676 INFO L87 Difference]: Start difference. First operand 2 states. Second operand 2 states. [2020-06-22 02:18:54,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-06-22 02:18:54,690 INFO L93 Difference]: Finished difference Result 2 states and 3 transitions. [2020-06-22 02:18:54,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-06-22 02:18:54,694 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2 states and 3 transitions. [2020-06-22 02:18:54,694 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:18:54,699 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2 states to 2 states and 3 transitions. [2020-06-22 02:18:54,700 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2 [2020-06-22 02:18:54,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2 [2020-06-22 02:18:54,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 3 transitions. [2020-06-22 02:18:54,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:18:54,701 INFO L706 BuchiCegarLoop]: Abstraction has 2 states and 3 transitions. [2020-06-22 02:18:54,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2 states and 3 transitions. [2020-06-22 02:18:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2 to 2. [2020-06-22 02:18:54,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 02:18:54,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2020-06-22 02:18:54,732 INFO L729 BuchiCegarLoop]: Abstraction has 2 states and 3 transitions. [2020-06-22 02:18:54,732 INFO L609 BuchiCegarLoop]: Abstraction has 2 states and 3 transitions. [2020-06-22 02:18:54,732 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2020-06-22 02:18:54,732 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states and 3 transitions. [2020-06-22 02:18:54,732 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-06-22 02:18:54,733 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-06-22 02:18:54,733 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-06-22 02:18:54,733 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-06-22 02:18:54,733 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-06-22 02:18:54,733 INFO L794 eck$LassoCheckResult]: Stem: 12#ULTIMATE.startENTRY [19] ULTIMATE.startENTRY-->L13-2: Formula: (= v_ULTIMATE.start_main_~x~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_~x~0=v_ULTIMATE.start_main_~x~0_1, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_2|} AuxVars[|v_ULTIMATE.start_main_#t~nondet0_4|] AssignedVars[ULTIMATE.start_main_#t~nondet0, ULTIMATE.start_main_#res, ULTIMATE.start_main_~x~0] 13#L13-2 [2020-06-22 02:18:54,734 INFO L796 eck$LassoCheckResult]: Loop: 13#L13-2 [28] L13-2-->L13-2: Formula: (and (= (div v_ULTIMATE.start_main_~x~0_6 2) v_ULTIMATE.start_main_~x~0_5) (< 0 v_ULTIMATE.start_main_~x~0_6) (= (mod v_ULTIMATE.start_main_~x~0_6 2) 0)) InVars {ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_6} OutVars{ULTIMATE.start_main_~x~0=v_ULTIMATE.start_main_~x~0_5} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0] 13#L13-2 [2020-06-22 02:18:54,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:18:54,734 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 2 times [2020-06-22 02:18:54,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:18:54,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:18:54,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:18:54,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:18:54,739 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2020-06-22 02:18:54,739 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:18:54,739 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:18:54,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,740 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2020-06-22 02:18:54,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:18:54,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1578, now seen corresponding path program 1 times [2020-06-22 02:18:54,753 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2020-06-22 02:18:54,753 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2020-06-22 02:18:54,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-06-22 02:18:54,754 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2020-06-22 02:18:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-06-22 02:18:54,802 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:18:54,803 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:18:54,804 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:18:54,804 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:18:54,804 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2020-06-22 02:18:54,804 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:18:54,804 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:18:54,805 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:18:54,805 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:18:54,805 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:18:54,805 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:18:54,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:18:54,936 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:18:54,937 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:18:54,943 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-06-22 02:18:54,944 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /export/starexec/sandbox2/solver/bin/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2020-06-22 02:18:54,981 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-06-22 02:18:54,981 INFO L163 nArgumentSynthesizer]: Using integer mode. [2020-06-22 02:18:55,039 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-06-22 02:18:55,042 INFO L216 LassoAnalysis]: Preferences: [2020-06-22 02:18:55,042 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2020-06-22 02:18:55,042 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-06-22 02:18:55,043 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2020-06-22 02:18:55,043 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2020-06-22 02:18:55,043 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-06-22 02:18:55,043 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2020-06-22 02:18:55,043 INFO L130 ssoRankerPreferences]: Path of dumped script: [2020-06-22 02:18:55,043 INFO L131 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2020-06-22 02:18:55,043 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2020-06-22 02:18:55,044 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2020-06-22 02:18:55,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-06-22 02:18:55,131 INFO L300 LassoAnalysis]: Preprocessing complete. [2020-06-22 02:18:55,137 INFO L497 LassoAnalysis]: Using template 'affine'. [2020-06-22 02:18:55,139 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-06-22 02:18:55,140 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2020-06-22 02:18:55,140 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-06-22 02:18:55,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2020-06-22 02:18:55,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2020-06-22 02:18:55,141 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2020-06-22 02:18:55,144 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-06-22 02:18:55,144 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-06-22 02:18:55,154 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-06-22 02:18:55,162 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-06-22 02:18:55,162 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2020-06-22 02:18:55,164 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-06-22 02:18:55,164 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-06-22 02:18:55,165 INFO L518 LassoAnalysis]: Proved termination. [2020-06-22 02:18:55,165 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2020-06-22 02:18:55,166 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-06-22 02:18:55,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-06-22 02:18:55,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:18:55,213 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-06-22 02:18:55,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:18:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-06-22 02:18:55,223 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2020-06-22 02:18:55,223 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2020-06-22 02:18:55,224 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 02:18:55,226 INFO L98 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2020-06-22 02:18:55,229 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-06-22 02:18:55,230 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 2 states and 3 transitions. cyclomatic complexity: 2 Second operand 2 states. [2020-06-22 02:18:55,251 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 2 states and 3 transitions. cyclomatic complexity: 2. Second operand 2 states. Result 3 states and 5 transitions. Complement of second has 2 states. [2020-06-22 02:18:55,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2020-06-22 02:18:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-06-22 02:18:55,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 6 transitions. [2020-06-22 02:18:55,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 1 letters. Loop has 1 letters. [2020-06-22 02:18:55,256 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:18:55,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 2 letters. Loop has 1 letters. [2020-06-22 02:18:55,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:18:55,257 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 6 transitions. Stem has 1 letters. Loop has 2 letters. [2020-06-22 02:18:55,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-06-22 02:18:55,260 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 3 states and 5 transitions. [2020-06-22 02:18:55,261 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:18:55,261 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 3 states to 0 states and 0 transitions. [2020-06-22 02:18:55,261 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-06-22 02:18:55,261 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-06-22 02:18:55,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-06-22 02:18:55,262 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-06-22 02:18:55,262 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:18:55,262 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:18:55,262 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-06-22 02:18:55,262 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2020-06-22 02:18:55,264 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-06-22 02:18:55,264 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-06-22 02:18:55,264 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-06-22 02:18:55,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.06 02:18:55 BasicIcfg [2020-06-22 02:18:55,270 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-06-22 02:18:55,271 INFO L168 Benchmark]: Toolchain (without parser) took 1541.99 ms. Allocated memory was 649.6 MB in the beginning and 663.7 MB in the end (delta: 14.2 MB). Free memory was 565.1 MB in the beginning and 528.8 MB in the end (delta: 36.3 MB). Peak memory consumption was 50.5 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,272 INFO L168 Benchmark]: CDTParser took 0.18 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 02:18:55,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.07 ms. Allocated memory was 649.6 MB in the beginning and 663.7 MB in the end (delta: 14.2 MB). Free memory was 565.1 MB in the beginning and 630.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 663.7 MB. Free memory was 630.5 MB in the beginning and 629.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,274 INFO L168 Benchmark]: Boogie Preprocessor took 18.11 ms. Allocated memory is still 663.7 MB. Free memory was 629.4 MB in the beginning and 626.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,275 INFO L168 Benchmark]: RCFGBuilder took 185.63 ms. Allocated memory is still 663.7 MB. Free memory was 626.6 MB in the beginning and 613.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,275 INFO L168 Benchmark]: BlockEncodingV2 took 78.61 ms. Allocated memory is still 663.7 MB. Free memory was 613.9 MB in the beginning and 608.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,276 INFO L168 Benchmark]: TraceAbstraction took 150.47 ms. Allocated memory is still 663.7 MB. Free memory was 608.5 MB in the beginning and 598.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,277 INFO L168 Benchmark]: BuchiAutomizer took 797.54 ms. Allocated memory is still 663.7 MB. Free memory was 598.5 MB in the beginning and 528.8 MB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 50.3 GB. [2020-06-22 02:18:55,282 INFO L337 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 6 locations, 7 edges - StatisticsResult: Encoded RCFG 2 locations, 5 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 272.07 ms. Allocated memory was 649.6 MB in the beginning and 663.7 MB in the end (delta: 14.2 MB). Free memory was 565.1 MB in the beginning and 630.5 MB in the end (delta: -65.4 MB). Peak memory consumption was 30.4 MB. Max. memory is 50.3 GB. * Boogie Procedure Inliner took 34.47 ms. Allocated memory is still 663.7 MB. Free memory was 630.5 MB in the beginning and 629.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 50.3 GB. * Boogie Preprocessor took 18.11 ms. Allocated memory is still 663.7 MB. Free memory was 629.4 MB in the beginning and 626.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 50.3 GB. * RCFGBuilder took 185.63 ms. Allocated memory is still 663.7 MB. Free memory was 626.6 MB in the beginning and 613.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 50.3 GB. * BlockEncodingV2 took 78.61 ms. Allocated memory is still 663.7 MB. Free memory was 613.9 MB in the beginning and 608.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 50.3 GB. * TraceAbstraction took 150.47 ms. Allocated memory is still 663.7 MB. Free memory was 608.5 MB in the beginning and 598.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 50.3 GB. * BuchiAutomizer took 797.54 ms. Allocated memory is still 663.7 MB. Free memory was 598.5 MB in the beginning and 528.8 MB in the end (delta: 69.7 MB). Peak memory consumption was 69.7 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. - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 2 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=2occurred 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 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 (1 trivial, 0 deterministic, 1 nondeterministic). One nondeterministic module has affine ranking function x and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 2 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. 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 2 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2 SDtfs, 3 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div600 bol100 ite100 ukn100 eq126 hnf40 smp61 dnf100 smp100 tf107 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 26ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! !SESSION 2020-06-22 02:18:50.486 ----------------------------------------------- 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 02:18:55.516 !MESSAGE The workspace will exit with unsaved changes in this session. Received shutdown request... Ultimate: GTK+ Version Check