YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:40:45,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:40:45,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:40:45,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:40:45,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:40:45,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:40:45,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:40:45,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:40:45,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:40:45,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:40:45,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:40:45,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:40:45,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:40:45,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:40:45,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:40:45,852 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:40:45,852 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:40:45,853 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:40:45,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:40:45,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:40:45,855 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:40:45,856 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:40:45,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:40:45,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:40:45,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:40:45,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:40:45,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:40:45,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:40:45,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:40:45,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:40:45,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:40:45,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:40:45,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:40:45,861 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:40:45,862 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:40:45,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:40:45,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:40:45,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:40:45,863 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:40:45,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:40:45,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:40:45,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:40:45,864 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:40:45,875 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:40:45,875 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:40:45,876 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:40:45,877 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:40:45,877 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:45,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:40:45,878 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:40:45,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:40:45,879 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:40:45,879 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:40:45,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:45,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:40:45,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:40:45,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:40:45,879 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/export/starexec/sandbox/solver/Ultimate/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:40:46,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:40:46,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:40:46,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:40:46,021 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:40:46,021 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:40:46,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:46,057 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/2d039db38df945c982aecd830fb92d70/FLAG153e60900 [2023-02-13 03:40:46,420 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:40:46,420 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:40:46,423 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/2d039db38df945c982aecd830fb92d70/FLAG153e60900 [2023-02-13 03:40:46,885 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/2d039db38df945c982aecd830fb92d70 [2023-02-13 03:40:46,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:40:46,890 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:40:46,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:46,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:40:46,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:40:46,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:46" (1/1) ... [2023-02-13 03:40:46,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2547ef11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:46, skipping insertion in model container [2023-02-13 03:40:46,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:40:46" (1/1) ... [2023-02-13 03:40:46,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:40:46,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:40:46,995 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:46,997 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:40:47,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:40:47,010 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:40:47,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47 WrapperNode [2023-02-13 03:40:47,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:40:47,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:47,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:40:47,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:40:47,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,026 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-13 03:40:47,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:40:47,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:40:47,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:40:47,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:40:47,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,032 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:40:47,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:40:47,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:40:47,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:40:47,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:40:47,056 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,065 INFO L229 MonitoredProcess]: Starting monitored process 1 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,070 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Waiting until timeout for monitored process [2023-02-13 03:40:47,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:40:47,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:40:47,147 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:40:47,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:40:47,199 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:40:47,205 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:40:47,205 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-13 03:40:47,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:47 BoogieIcfgContainer [2023-02-13 03:40:47,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:40:47,207 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:40:47,207 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:40:47,209 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:40:47,209 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:47" (1/1) ... [2023-02-13 03:40:47,221 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:40:47,223 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:40:47,224 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:40:47,225 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:40:47,225 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:40:47,226 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:40:47,227 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:40:47,227 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:40:47,239 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:40:47,246 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:40:47,248 INFO L70 emoveInfeasibleEdges]: Removed 2 edges and 0 locations because of local infeasibility [2023-02-13 03:40:47,249 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:47,252 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:40:47,253 INFO L70 RemoveSinkStates]: Removed 3 edges and 2 locations by removing sink states [2023-02-13 03:40:47,254 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:40:47,254 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:40:47,254 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:40:47,254 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:40:47,254 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 6 edges [2023-02-13 03:40:47,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:47 BasicIcfg [2023-02-13 03:40:47,254 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:40:47,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:40:47,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:40:47,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:40:47,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:40:46" (1/4) ... [2023-02-13 03:40:47,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37acb623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (2/4) ... [2023-02-13 03:40:47,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37acb623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:47" (3/4) ... [2023-02-13 03:40:47,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37acb623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:47" (4/4) ... [2023-02-13 03:40:47,259 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:47,268 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:40:47,269 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:40:47,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37acb623 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:40:47,270 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:40:47,270 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:40:47,271 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:40:47,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:47,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:40:46" (1/4) ... [2023-02-13 03:40:47,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ea71c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:47,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:40:47" (2/4) ... [2023-02-13 03:40:47,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ea71c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:47,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:40:47" (3/4) ... [2023-02-13 03:40:47,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@34ea71c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:47, skipping insertion in model container [2023-02-13 03:40:47,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:40:47,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:40:47" (4/4) ... [2023-02-13 03:40:47,273 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:40:47,306 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:40:47,306 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:40:47,306 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:40:47,306 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:40:47,306 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:40:47,307 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:40:47,307 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:40:47,307 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:40:47,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:47,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:47,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:47,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:47,335 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:47,335 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:47,336 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:40:47,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:47,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:40:47,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:47,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:47,337 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:40:47,337 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:40:47,340 INFO L733 eck$LassoCheckResult]: Stem: 2#ULTIMATE.startENTRYtrue [50] ULTIMATE.startENTRY-->L9-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 3#L9-2true [2023-02-13 03:40:47,340 INFO L735 eck$LassoCheckResult]: Loop: 3#L9-2true [36] L9-2-->L11-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_8| 1) (< 0 |v_ULTIMATE.start_main_~y~0#1_9|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_9|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 5#L11-2true [48] L11-2-->L11-3: Formula: (>= |v_ULTIMATE.start_main_~y~0#1_4| |v_ULTIMATE.start_main_~x~0#1_4|) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_4|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_4|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_4|} AuxVars[] AssignedVars[] 4#L11-3true [39] L11-3-->L9-2: Formula: (= |v_ULTIMATE.start_main_~x~0#1_6| (+ (- 1) |v_ULTIMATE.start_main_~x~0#1_7|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_7|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_6|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1] 3#L9-2true [2023-02-13 03:40:47,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:47,344 INFO L85 PathProgramCache]: Analyzing trace with hash 81, now seen corresponding path program 1 times [2023-02-13 03:40:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:47,350 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109916686] [2023-02-13 03:40:47,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:47,393 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:47,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:47,403 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:47,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:47,405 INFO L85 PathProgramCache]: Analyzing trace with hash 65914, now seen corresponding path program 1 times [2023-02-13 03:40:47,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:47,406 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844787080] [2023-02-13 03:40:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:47,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:47,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:47,412 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:47,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:47,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:47,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:47,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2449194, now seen corresponding path program 1 times [2023-02-13 03:40:47,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:47,417 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945504015] [2023-02-13 03:40:47,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:47,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:47,421 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:47,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:47,465 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:47,466 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:47,466 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:47,466 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:47,466 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:47,466 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:47,466 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:47,466 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:47,467 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:47,467 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:47,467 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:47,475 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:47,481 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:47,483 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:47,518 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:47,519 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:47,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:47,520 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,536 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-13 03:40:47,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:47,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:47,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:47,550 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:47,574 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:47,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:47,575 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,579 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-13 03:40:47,583 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:47,583 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:47,596 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:47,596 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:47,620 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-13 03:40:47,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:47,620 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,622 INFO L229 MonitoredProcess]: Starting monitored process 4 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,624 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-13 03:40:47,625 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:47,625 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:47,652 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-13 03:40:47,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:47,654 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,655 INFO L229 MonitoredProcess]: Starting monitored process 5 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,656 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-13 03:40:47,657 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:47,657 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:47,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:47,706 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-13 03:40:47,707 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:47,707 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:47,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:47,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:47,707 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:47,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:47,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:47,708 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:47,708 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration1_Loop [2023-02-13 03:40:47,708 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:47,708 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:47,711 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:47,717 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:47,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:47,755 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:47,758 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:47,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:47,759 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,759 INFO L229 MonitoredProcess]: Starting monitored process 6 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,760 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-13 03:40:47,761 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:47,766 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:47,766 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:47,766 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:47,766 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:47,768 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:47,768 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:47,771 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:47,787 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-13 03:40:47,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:47,788 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,789 INFO L229 MonitoredProcess]: Starting monitored process 7 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,805 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-13 03:40:47,806 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:47,810 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:47,811 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:47,811 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:47,811 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:47,814 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:40:47,814 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:40:47,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:40:47,849 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-13 03:40:47,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:47,850 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,851 INFO L229 MonitoredProcess]: Starting monitored process 8 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,853 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:47,853 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-13 03:40:47,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:47,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:47,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:47,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:47,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:47,860 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:47,860 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:47,865 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:47,871 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:47,871 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:47,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:47,874 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:47,876 INFO L229 MonitoredProcess]: Starting monitored process 9 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:47,878 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-13 03:40:47,879 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:47,879 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:47,879 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:47,880 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 2*ULTIMATE.start_main_~x~0#1 + 1 Supporting invariants [] [2023-02-13 03:40:47,895 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-13 03:40:47,901 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:47,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:47,922 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:47,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:47,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:47,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:47,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:47,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:40:47,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:47,992 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:40:47,995 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-13 03:40:47,996 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:48,016 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 8 states and 15 transitions. Complement of second has 4 states. [2023-02-13 03:40:48,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:48,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2023-02-13 03:40:48,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 1 letters. Loop has 3 letters. [2023-02-13 03:40:48,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:48,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 4 letters. Loop has 3 letters. [2023-02-13 03:40:48,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:48,022 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 1 letters. Loop has 6 letters. [2023-02-13 03:40:48,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:48,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 15 transitions. [2023-02-13 03:40:48,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:48,027 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 11 transitions. [2023-02-13 03:40:48,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2023-02-13 03:40:48,028 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-13 03:40:48,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 11 transitions. [2023-02-13 03:40:48,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:40:48,029 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 11 transitions. [2023-02-13 03:40:48,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 11 transitions. [2023-02-13 03:40:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2023-02-13 03:40:48,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:48,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 10 transitions. [2023-02-13 03:40:48,042 INFO L242 hiAutomatonCegarLoop]: Abstraction has 6 states and 10 transitions. [2023-02-13 03:40:48,042 INFO L426 stractBuchiCegarLoop]: Abstraction has 6 states and 10 transitions. [2023-02-13 03:40:48,042 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:40:48,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 10 transitions. [2023-02-13 03:40:48,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-13 03:40:48,042 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:40:48,042 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:40:48,043 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:40:48,043 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-13 03:40:48,043 INFO L733 eck$LassoCheckResult]: Stem: 55#ULTIMATE.startENTRY [50] ULTIMATE.startENTRY-->L9-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_10|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_10|, ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_#t~nondet0#1] 56#L9-2 [36] L9-2-->L11-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_8| 1) (< 0 |v_ULTIMATE.start_main_~y~0#1_9|) (<= 0 |v_ULTIMATE.start_main_~x~0#1_9|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_9|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_9|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 57#L11-2 [2023-02-13 03:40:48,043 INFO L735 eck$LassoCheckResult]: Loop: 57#L11-2 [42] L11-2-->L11-2: Formula: (and (= |v_ULTIMATE.start_main_~y~0#1_5| (* 2 |v_ULTIMATE.start_main_~y~0#1_6|)) (< 0 |v_ULTIMATE.start_main_~y~0#1_6|) (< |v_ULTIMATE.start_main_~y~0#1_6| |v_ULTIMATE.start_main_~x~0#1_5|)) InVars {ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_6|} OutVars{ULTIMATE.start_main_~x~0#1=|v_ULTIMATE.start_main_~x~0#1_5|, ULTIMATE.start_main_~y~0#1=|v_ULTIMATE.start_main_~y~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~y~0#1] 57#L11-2 [2023-02-13 03:40:48,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2547, now seen corresponding path program 1 times [2023-02-13 03:40:48,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:48,044 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302270712] [2023-02-13 03:40:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:48,047 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:48,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:48,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:48,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:48,049 INFO L85 PathProgramCache]: Analyzing trace with hash 73, now seen corresponding path program 1 times [2023-02-13 03:40:48,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:48,049 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268655586] [2023-02-13 03:40:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:48,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:48,051 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:48,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:48,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:48,054 INFO L85 PathProgramCache]: Analyzing trace with hash 78999, now seen corresponding path program 1 times [2023-02-13 03:40:48,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:40:48,054 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89802622] [2023-02-13 03:40:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:40:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:40:48,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:48,057 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:40:48,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:40:48,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:40:48,068 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:48,068 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:48,068 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:48,069 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:48,069 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:40:48,069 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:48,069 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:48,069 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:48,069 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:48,069 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:48,069 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:48,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:48,071 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:48,075 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:48,093 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:48,094 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:40:48,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:48,094 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:48,095 INFO L229 MonitoredProcess]: Starting monitored process 10 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:48,097 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-13 03:40:48,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:48,098 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:48,105 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:40:48,106 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:40:48,120 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:48,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:48,121 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:48,121 INFO L229 MonitoredProcess]: Starting monitored process 11 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:48,122 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-13 03:40:48,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:40:48,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:48,148 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-13 03:40:48,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:40:48,149 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:48,151 INFO L229 MonitoredProcess]: Starting monitored process 12 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:48,152 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-13 03:40:48,152 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:40:48,153 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:40:48,221 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:40:48,223 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2023-02-13 03:40:48,223 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:40:48,224 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:40:48,224 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:40:48,224 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:40:48,225 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:40:48,225 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:48,225 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:40:48,225 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:40:48,226 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:40:48,226 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:40:48,226 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:40:48,228 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:48,236 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:48,240 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-13 03:40:48,281 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:40:48,281 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:40:48,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:48,282 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:48,284 INFO L229 MonitoredProcess]: Starting monitored process 13 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:48,286 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:40:48,286 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-13 03:40:48,294 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:40:48,295 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:40:48,295 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:40:48,295 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:40:48,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:40:48,297 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:40:48,298 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:40:48,302 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:40:48,308 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:40:48,308 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:40:48,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:40:48,309 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:40:48,311 INFO L229 MonitoredProcess]: Starting monitored process 14 with /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-13 03:40:48,313 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-13 03:40:48,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:40:48,314 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:40:48,314 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:40:48,314 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~x~0#1 - 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-13 03:40:48,328 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-13 03:40:48,329 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:40:48,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:40:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:48,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:40:48,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:40:48,359 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-13 03:40:48,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:40:48,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-13 03:40:48,362 INFO L100 LoopCannibalizer]: 1 predicates before loop cannibalization 1 predicates after loop cannibalization [2023-02-13 03:40:48,362 INFO L141 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 [2023-02-13 03:40:48,363 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 6 states and 10 transitions. cyclomatic complexity: 6 Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:48,381 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 6 states and 10 transitions. cyclomatic complexity: 6. Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 14 transitions. Complement of second has 4 states. [2023-02-13 03:40:48,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-13 03:40:48,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-13 03:40:48,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2023-02-13 03:40:48,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-13 03:40:48,383 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:48,383 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-13 03:40:48,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:48,384 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-13 03:40:48,384 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:40:48,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 14 transitions. [2023-02-13 03:40:48,386 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:48,386 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2023-02-13 03:40:48,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:40:48,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:40:48,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:40:48,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:40:48,387 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:48,387 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:48,387 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:40:48,388 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:40:48,388 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:40:48,388 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:40:48,388 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:40:48,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:40:48 BasicIcfg [2023-02-13 03:40:48,397 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:40:48,398 INFO L158 Benchmark]: Toolchain (without parser) took 1508.29ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 47.9MB). Peak memory consumption was 49.8MB. Max. memory is 42.9GB. [2023-02-13 03:40:48,398 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:48,399 INFO L158 Benchmark]: CACSL2BoogieTranslator took 117.54ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:48,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 15.27ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:48,400 INFO L158 Benchmark]: Boogie Preprocessor took 8.88ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:48,400 INFO L158 Benchmark]: RCFGBuilder took 170.85ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:40:48,401 INFO L158 Benchmark]: BlockEncodingV2 took 47.26ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:48,401 INFO L158 Benchmark]: TraceAbstraction took 13.69ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:40:48,401 INFO L158 Benchmark]: BuchiAutomizer took 1127.91ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 17.7MB). Peak memory consumption was 24.6MB. Max. memory is 42.9GB. [2023-02-13 03:40:48,404 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.blockencoding: - StatisticsResult: Initial Icfg 9 locations, 12 edges - StatisticsResult: Encoded RCFG 4 locations, 6 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 117.54ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 15.27ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 42.9GB. * Boogie Preprocessor took 8.88ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * RCFGBuilder took 170.85ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 47.26ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 42.9GB. * TraceAbstraction took 13.69ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 1127.91ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 17.7MB). Peak memory consumption was 24.6MB. Max. memory is 42.9GB. * 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: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function 2 * x + 1 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 6 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf100 lsp56 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq149 hnf93 smp100 dnf100 smp100 tf109 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-13 03:40:48,430 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-13 03:40:48,654 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-13 03:40:48,855 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 (1)] Ended with exit code 0 Received shutdown request...