YES This is Ultimate 0.2.2-dev-e7f90c1-m [2023-02-13 03:41:00,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-13 03:41:00,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-13 03:41:00,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-13 03:41:00,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-13 03:41:00,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-13 03:41:00,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-13 03:41:00,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-13 03:41:00,895 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-13 03:41:00,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-13 03:41:00,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-13 03:41:00,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-13 03:41:00,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-13 03:41:00,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-13 03:41:00,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-13 03:41:00,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-13 03:41:00,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-13 03:41:00,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-13 03:41:00,900 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-13 03:41:00,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-13 03:41:00,901 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2023-02-13 03:41:00,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-13 03:41:00,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-13 03:41:00,903 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-13 03:41:00,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-13 03:41:00,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-13 03:41:00,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-13 03:41:00,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-13 03:41:00,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-13 03:41:00,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-13 03:41:00,906 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-13 03:41:00,906 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-13 03:41:00,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-13 03:41:00,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-13 03:41:00,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-13 03:41:00,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-13 03:41:00,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-13 03:41:00,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-13 03:41:00,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-13 03:41:00,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-13 03:41:00,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-13 03:41:00,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-13 03:41:00,910 INFO L101 SettingsManager]: Beginning loading settings from /export/starexec/sandbox/solver/Ultimate/./../termcomp2017.epf [2023-02-13 03:41:00,921 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-13 03:41:00,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-13 03:41:00,921 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Rewrite not-equals=true [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Use SBE=true [2023-02-13 03:41:00,922 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Buchi interpolant automaton construction strategy=DANDELION [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-13 03:41:00,922 INFO L138 SettingsManager]: * Construct termination proof for TermComp=true [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Command for external solver (GNTA synthesis)=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:00,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * How to treat unsigned ints differently from normal ones=IGNORE [2023-02-13 03:41:00,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2023-02-13 03:41:00,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:00,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-13 03:41:00,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-13 03:41:00,924 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-13 03:41:00,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-02-13 03:41:01,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-13 03:41:01,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-13 03:41:01,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-13 03:41:01,081 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-13 03:41:01,082 INFO L275 PluginConnector]: CDTParser initialized [2023-02-13 03:41:01,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,127 INFO L220 CDTParser]: Created temporary CDT project at /export/starexec/sandbox/tmp/768c15fd38b549afb150d8f2234ac1f5/FLAG5cb11765d [2023-02-13 03:41:01,491 INFO L306 CDTParser]: Found 1 translation units. [2023-02-13 03:41:01,492 INFO L160 CDTParser]: Scanning /export/starexec/sandbox/benchmark/theBenchmark.c [2023-02-13 03:41:01,498 INFO L349 CDTParser]: About to delete temporary CDT project at /export/starexec/sandbox/tmp/768c15fd38b549afb150d8f2234ac1f5/FLAG5cb11765d [2023-02-13 03:41:01,507 INFO L357 CDTParser]: Successfully deleted /export/starexec/sandbox/tmp/768c15fd38b549afb150d8f2234ac1f5 [2023-02-13 03:41:01,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-13 03:41:01,510 INFO L131 ToolchainWalker]: Walking toolchain with 7 elements. [2023-02-13 03:41:01,511 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:01,511 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-13 03:41:01,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-13 03:41:01,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d4cc052 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-13 03:41:01,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-13 03:41:01,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:01,609 INFO L203 MainTranslator]: Completed pre-run [2023-02-13 03:41:01,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-13 03:41:01,622 INFO L208 MainTranslator]: Completed translation [2023-02-13 03:41:01,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01 WrapperNode [2023-02-13 03:41:01,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-13 03:41:01,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:01,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-13 03:41:01,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-13 03:41:01,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,640 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-13 03:41:01,640 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-13 03:41:01,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-13 03:41:01,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-13 03:41:01,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-13 03:41:01,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,645 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,646 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-13 03:41:01,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-13 03:41:01,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-13 03:41:01,650 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-13 03:41:01,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:5000 [2023-02-13 03:41:01,663 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:01,680 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 03:41:01,682 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 03:41:01,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-13 03:41:01,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-13 03:41:01,768 INFO L234 CfgBuilder]: Building ICFG [2023-02-13 03:41:01,769 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-13 03:41:01,828 INFO L275 CfgBuilder]: Performing block encoding [2023-02-13 03:41:01,833 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-13 03:41:01,834 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-13 03:41:01,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01 BoogieIcfgContainer [2023-02-13 03:41:01,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-13 03:41:01,836 INFO L113 PluginConnector]: ------------------------BlockEncodingV2---------------------------- [2023-02-13 03:41:01,836 INFO L271 PluginConnector]: Initializing BlockEncodingV2... [2023-02-13 03:41:01,837 INFO L275 PluginConnector]: BlockEncodingV2 initialized [2023-02-13 03:41:01,838 INFO L185 PluginConnector]: Executing the observer BlockEncodingObserver from plugin BlockEncodingV2 for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01" (1/1) ... [2023-02-13 03:41:01,847 INFO L313 BlockEncoder]: Initial Icfg 9 locations, 12 edges [2023-02-13 03:41:01,847 INFO L258 BlockEncoder]: Using Remove infeasible edges [2023-02-13 03:41:01,848 INFO L263 BlockEncoder]: Using Maximize final states [2023-02-13 03:41:01,848 INFO L270 BlockEncoder]: Using Minimize states even if more edges are added than removed.=false [2023-02-13 03:41:01,848 INFO L276 BlockEncoder]: Using Minimize states using LBE with the strategy=SINGLE [2023-02-13 03:41:01,849 INFO L296 BlockEncoder]: Using Remove sink states [2023-02-13 03:41:01,849 INFO L171 BlockEncoder]: Using Apply optimizations until nothing changes=true [2023-02-13 03:41:01,849 INFO L179 BlockEncoder]: Using Rewrite not-equals [2023-02-13 03:41:01,856 INFO L185 BlockEncoder]: Using Use SBE [2023-02-13 03:41:01,862 INFO L200 BlockEncoder]: SBE split 2 edges [2023-02-13 03:41:01,864 INFO L70 emoveInfeasibleEdges]: Removed 1 edges and 0 locations because of local infeasibility [2023-02-13 03:41:01,865 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:01,871 INFO L101 BaseMinimizeStates]: Removed 6 edges and 3 locations by large block encoding [2023-02-13 03:41:01,872 INFO L70 RemoveSinkStates]: Removed 4 edges and 2 locations by removing sink states [2023-02-13 03:41:01,874 INFO L70 emoveInfeasibleEdges]: Removed 0 edges and 0 locations because of local infeasibility [2023-02-13 03:41:01,874 INFO L71 MaximizeFinalStates]: 0 new accepting states [2023-02-13 03:41:01,874 INFO L101 BaseMinimizeStates]: Removed 0 edges and 0 locations by large block encoding [2023-02-13 03:41:01,874 INFO L70 RemoveSinkStates]: Removed 0 edges and 0 locations by removing sink states [2023-02-13 03:41:01,874 INFO L313 BlockEncoder]: Encoded RCFG 4 locations, 7 edges [2023-02-13 03:41:01,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:01 BasicIcfg [2023-02-13 03:41:01,875 INFO L132 PluginConnector]: ------------------------ END BlockEncodingV2---------------------------- [2023-02-13 03:41:01,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-13 03:41:01,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-13 03:41:01,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-13 03:41:01,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:01,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5169fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (2/4) ... [2023-02-13 03:41:01,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5169fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01" (3/4) ... [2023-02-13 03:41:01,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5169fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:01" (4/4) ... [2023-02-13 03:41:01,880 INFO L111 eAbstractionObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:01,890 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2023-02-13 03:41:01,890 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-02-13 03:41:01,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5169fea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-13 03:41:01,891 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-13 03:41:01,891 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-13 03:41:01,893 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-13 03:41:01,893 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:01,893 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.02 03:41:01" (1/4) ... [2023-02-13 03:41:01,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f330309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:01,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.02 03:41:01" (2/4) ... [2023-02-13 03:41:01,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f330309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:01,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.02 03:41:01" (3/4) ... [2023-02-13 03:41:01,894 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@f330309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:01, skipping insertion in model container [2023-02-13 03:41:01,894 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-13 03:41:01,894 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.blockencoding CFG 13.02 03:41:01" (4/4) ... [2023-02-13 03:41:01,895 INFO L322 chiAutomizerObserver]: Analyzing ICFG theBenchmark.c_BEv2 [2023-02-13 03:41:01,924 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2023-02-13 03:41:01,925 INFO L302 stractBuchiCegarLoop]: Hoare is true [2023-02-13 03:41:01,925 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-13 03:41:01,925 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-13 03:41:01,925 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-13 03:41:01,925 INFO L306 stractBuchiCegarLoop]: Difference is false [2023-02-13 03:41:01,925 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-13 03:41:01,925 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-13 03:41:01,928 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 03:41:01,937 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:01,937 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:01,937 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:01,940 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:01,941 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:01,941 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-13 03:41:01,941 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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 03:41:01,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:01,941 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:01,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:01,941 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:01,942 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:01,944 INFO L733 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue [51] ULTIMATE.startENTRY-->L21-2: Formula: true InVars {} OutVars{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_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 5#L21-2true [2023-02-13 03:41:01,945 INFO L735 eck$LassoCheckResult]: Loop: 5#L21-2true [49] L21-2-->L18: Formula: (and (< 0 |v_ULTIMATE.start_main_~q~0#1_8|) (> |v_ULTIMATE.start_main_~q~0#1_8| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 2#L18true [31] L18-->L21-2: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_10| |v_ULTIMATE.start_main_~p~0#1_10|) (= (+ (- 1) |v_ULTIMATE.start_main_~q~0#1_10|) |v_ULTIMATE.start_main_~q~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_10|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0#1] 5#L21-2true [2023-02-13 03:41:01,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:01,948 INFO L85 PathProgramCache]: Analyzing trace with hash 82, now seen corresponding path program 1 times [2023-02-13 03:41:01,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:01,954 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602332779] [2023-02-13 03:41:01,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:01,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:01,999 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,009 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash 2511, now seen corresponding path program 1 times [2023-02-13 03:41:02,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,011 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015098534] [2023-02-13 03:41:02,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,048 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 03:41:02,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:02,049 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015098534] [2023-02-13 03:41:02,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015098534] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:02,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:41:02,051 ERROR L191 FreeRefinementEngine]: {10#true} [12#(<= (+ |ULTIMATE.start_main_~p~0#1| 1) |ULTIMATE.start_main_~q~0#1|)] {11#false} [2023-02-13 03:41:02,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:41:02,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203251658] [2023-02-13 03:41:02,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:02,057 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:41:02,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:02,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:41:02,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:41:02,081 INFO L87 Difference]: Start difference. First operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 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, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 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 03:41:02,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:02,097 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2023-02-13 03:41:02,099 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 10 transitions. [2023-02-13 03:41:02,099 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:41:02,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:41:02,101 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-13 03:41:02,102 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-13 03:41:02,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2023-02-13 03:41:02,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:02,102 INFO L220 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:41:02,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2023-02-13 03:41:02,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2023-02-13 03:41:02,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 6 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 03:41:02,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-13 03:41:02,117 INFO L242 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:41:02,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:41:02,124 INFO L426 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-13 03:41:02,124 INFO L333 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-13 03:41:02,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-13 03:41:02,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:41:02,125 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,125 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,125 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2023-02-13 03:41:02,125 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-13 03:41:02,125 INFO L733 eck$LassoCheckResult]: Stem: 22#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L21-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 23#L21-2 [2023-02-13 03:41:02,125 INFO L735 eck$LassoCheckResult]: Loop: 23#L21-2 [50] L21-2-->L18: Formula: (and (< 0 |v_ULTIMATE.start_main_~q~0#1_8|) (< |v_ULTIMATE.start_main_~q~0#1_8| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 26#L18 [31] L18-->L21-2: Formula: (and (< |v_ULTIMATE.start_main_~q~0#1_10| |v_ULTIMATE.start_main_~p~0#1_10|) (= (+ (- 1) |v_ULTIMATE.start_main_~q~0#1_10|) |v_ULTIMATE.start_main_~q~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_10|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_9|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~q~0#1] 23#L21-2 [2023-02-13 03:41:02,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,126 INFO L85 PathProgramCache]: Analyzing trace with hash 82, now seen corresponding path program 2 times [2023-02-13 03:41:02,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,126 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297027033] [2023-02-13 03:41:02,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,129 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,131 INFO L85 PathProgramCache]: Analyzing trace with hash 2542, now seen corresponding path program 1 times [2023-02-13 03:41:02,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,131 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762619520] [2023-02-13 03:41:02,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,136 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,138 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,139 INFO L85 PathProgramCache]: Analyzing trace with hash 80383, now seen corresponding path program 1 times [2023-02-13 03:41:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,139 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280547028] [2023-02-13 03:41:02,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,145 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,184 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,184 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,184 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,184 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,185 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:02,185 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,185 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,185 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,185 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:02,185 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,185 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,193 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 03:41:02,200 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 03:41:02,202 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 03:41:02,229 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,230 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:02,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,231 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,232 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 03:41:02,235 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 03:41:02,237 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,237 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,248 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,249 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 03:41:02,275 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 03:41:02,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,277 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,278 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 03:41:02,279 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 03:41:02,279 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,279 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,288 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,288 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 03:41:02,305 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 03:41:02,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,306 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,307 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 03:41:02,310 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 03:41:02,311 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,311 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,338 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:02,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,338 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,339 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 03:41:02,340 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 03:41:02,340 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:02,340 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,364 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:02,365 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 03:41:02,366 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,366 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,366 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,366 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,366 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:02,366 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,366 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,366 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,366 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration2_Loop [2023-02-13 03:41:02,366 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,366 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,367 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 03:41:02,370 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 03:41:02,372 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 03:41:02,400 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,402 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:02,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,404 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,405 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 03:41:02,406 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 03:41:02,408 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 03:41:02,413 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,414 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,414 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,414 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,418 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:02,418 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:02,423 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:02,445 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 03:41:02,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,445 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,446 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 03:41:02,447 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 03:41:02,450 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 03:41:02,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,456 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,456 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,458 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:02,458 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:02,461 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:02,478 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 03:41:02,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,479 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,480 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 03:41:02,481 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 03:41:02,482 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 03:41:02,486 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:02,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:02,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:02,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:02,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:02,489 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:02,490 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:02,494 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:02,498 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-13 03:41:02,499 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-13 03:41:02,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,502 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,503 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 03:41:02,509 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 03:41:02,509 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:02,510 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:02,510 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:02,511 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~q~0#1) = 1*ULTIMATE.start_main_~q~0#1 Supporting invariants [] [2023-02-13 03:41:02,547 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 03:41:02,553 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:02,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,589 WARN L261 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:02,601 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:02,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:02,619 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 03:41:02,632 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 2 predicates after loop cannibalization [2023-02-13 03:41:02,635 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 2 loop predicates [2023-02-13 03:41:02,637 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 1.0) 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 03:41:02,678 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 1.0) 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 17 states and 28 transitions. Complement of second has 4 states. [2023-02-13 03:41:02,679 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 03:41:02,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) 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 03:41:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 16 transitions. [2023-02-13 03:41:02,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 2 letters. [2023-02-13 03:41:02,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-13 03:41:02,685 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,685 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 16 transitions. Stem has 1 letters. Loop has 4 letters. [2023-02-13 03:41:02,686 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:02,687 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 28 transitions. [2023-02-13 03:41:02,689 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:41:02,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 14 states and 21 transitions. [2023-02-13 03:41:02,690 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-13 03:41:02,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2023-02-13 03:41:02,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 21 transitions. [2023-02-13 03:41:02,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:02,690 INFO L220 hiAutomatonCegarLoop]: Abstraction has 14 states and 21 transitions. [2023-02-13 03:41:02,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 21 transitions. [2023-02-13 03:41:02,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2023-02-13 03:41:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5833333333333333) internal successors, (19), 11 states have internal predecessors, (19), 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 03:41:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 19 transitions. [2023-02-13 03:41:02,692 INFO L242 hiAutomatonCegarLoop]: Abstraction has 12 states and 19 transitions. [2023-02-13 03:41:02,692 INFO L426 stractBuchiCegarLoop]: Abstraction has 12 states and 19 transitions. [2023-02-13 03:41:02,693 INFO L333 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-13 03:41:02,693 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 19 transitions. [2023-02-13 03:41:02,693 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2023-02-13 03:41:02,693 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:02,693 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:02,694 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:02,694 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:02,694 INFO L733 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L21-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 79#L21-2 [49] L21-2-->L18: Formula: (and (< 0 |v_ULTIMATE.start_main_~q~0#1_8|) (> |v_ULTIMATE.start_main_~q~0#1_8| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 83#L18 [2023-02-13 03:41:02,694 INFO L735 eck$LassoCheckResult]: Loop: 83#L18 [44] L18-->L21: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 80#L21 [34] L21-->L21-2: Formula: (and (< |v_ULTIMATE.start_main_~p~0#1_6| |v_ULTIMATE.start_main_~q~0#1_5|) (= (+ (- 1) |v_ULTIMATE.start_main_~p~0#1_6|) |v_ULTIMATE.start_main_~p~0#1_5|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_5|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_6|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_5|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_5|} AuxVars[] AssignedVars[ULTIMATE.start_main_~p~0#1] 81#L21-2 [49] L21-2-->L18: Formula: (and (< 0 |v_ULTIMATE.start_main_~q~0#1_8|) (> |v_ULTIMATE.start_main_~q~0#1_8| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 83#L18 [2023-02-13 03:41:02,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,695 INFO L85 PathProgramCache]: Analyzing trace with hash 2591, now seen corresponding path program 1 times [2023-02-13 03:41:02,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,695 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993128969] [2023-02-13 03:41:02,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,699 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,701 INFO L85 PathProgramCache]: Analyzing trace with hash 73178, now seen corresponding path program 1 times [2023-02-13 03:41:02,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,702 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747417142] [2023-02-13 03:41:02,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,705 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,708 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 77231868, now seen corresponding path program 1 times [2023-02-13 03:41:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:02,708 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651853947] [2023-02-13 03:41:02,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:02,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,711 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:02,714 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:02,735 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,735 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,736 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,736 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,736 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-13 03:41:02,736 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,736 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,736 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,736 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:02,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,736 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,737 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 03:41:02,738 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 03:41:02,740 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 03:41:02,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:02,758 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-13 03:41:02,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,758 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,760 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 03:41:02,767 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 03:41:02,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,768 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,775 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,775 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 03:41:02,792 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2023-02-13 03:41:02,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,792 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,793 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 03:41:02,794 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 03:41:02,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,804 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-13 03:41:02,804 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-13 03:41:02,822 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 03:41:02,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,823 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,824 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 03:41:02,825 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 03:41:02,826 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-13 03:41:02,826 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,872 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 03:41:02,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 [2023-02-13 03:41:02,873 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:02,874 INFO L229 MonitoredProcess]: Starting monitored process 13 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 03:41:02,876 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-13 03:41:02,876 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-13 03:41:02,876 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-13 03:41:02,963 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-13 03:41:02,964 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:4560 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2023-02-13 03:41:02,965 INFO L210 LassoAnalysis]: Preferences: [2023-02-13 03:41:02,965 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-13 03:41:02,965 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-13 03:41:02,965 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-13 03:41:02,965 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-13 03:41:02,965 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:02,965 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-13 03:41:02,965 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-13 03:41:02,965 INFO L133 ssoRankerPreferences]: Filename of dumped script: theBenchmark.c_BEv2_Iteration3_Loop [2023-02-13 03:41:02,965 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-13 03:41:02,965 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-13 03:41:02,966 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 03:41:02,968 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 03:41:02,970 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 03:41:03,009 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-13 03:41:03,009 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-13 03:41:03,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,010 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,010 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 03:41:03,012 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 03:41:03,012 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 03:41:03,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,019 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,021 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,021 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,026 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,047 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 03:41:03,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,048 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,049 INFO L229 MonitoredProcess]: Starting monitored process 15 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 03:41:03,051 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-13 03:41:03,052 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 03:41:03,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,064 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-13 03:41:03,065 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-13 03:41:03,068 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-13 03:41:03,089 INFO L540 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-13 03:41:03,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,090 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,091 INFO L229 MonitoredProcess]: Starting monitored process 16 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 03:41:03,097 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-13 03:41:03,097 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 03:41:03,102 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-13 03:41:03,102 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-13 03:41:03,102 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-13 03:41:03,102 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-13 03:41:03,102 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-13 03:41:03,103 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-13 03:41:03,103 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-13 03:41:03,108 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-13 03:41:03,114 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-13 03:41:03,114 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-13 03:41:03,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-13 03:41:03,115 INFO L189 MonitoredProcess]: No working directory specified, using /export/starexec/sandbox/solver/Ultimate/z3 [2023-02-13 03:41:03,116 INFO L229 MonitoredProcess]: Starting monitored process 17 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 03:41:03,119 INFO L327 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-13 03:41:03,119 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-13 03:41:03,119 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-13 03:41:03,120 INFO L513 LassoAnalysis]: Proved termination. [2023-02-13 03:41:03,120 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~p~0#1) = 1*ULTIMATE.start_main_~p~0#1 Supporting invariants [] [2023-02-13 03:41:03,158 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-13 03:41:03,160 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-13 03:41:03,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,230 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 03:41:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-13 03:41:03,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-13 03:41:03,276 INFO L100 LoopCannibalizer]: 2 predicates before loop cannibalization 3 predicates after loop cannibalization [2023-02-13 03:41:03,277 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 03:41:03,278 INFO L69 BuchiDifferenceNCSB]: Start buchiDifferenceNCSB. First operand 12 states and 19 transitions. cyclomatic complexity: 10 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:41:03,328 INFO L73 BuchiDifferenceNCSB]: Finished buchiDifferenceNCSB. First operand 12 states and 19 transitions. cyclomatic complexity: 10. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 17 states and 24 transitions. Complement of second has 7 states. [2023-02-13 03:41:03,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 2 accepting loop states [2023-02-13 03:41:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 03:41:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-13 03:41:03,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-13 03:41:03,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-13 03:41:03,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-13 03:41:03,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-13 03:41:03,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2023-02-13 03:41:03,334 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:03,335 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 9 states and 12 transitions. [2023-02-13 03:41:03,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-13 03:41:03,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-13 03:41:03,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-13 03:41:03,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-13 03:41:03,336 INFO L220 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-13 03:41:03,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-13 03:41:03,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-13 03:41:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 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 03:41:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-13 03:41:03,338 INFO L242 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-13 03:41:03,338 INFO L426 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-13 03:41:03,338 INFO L333 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-13 03:41:03,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-02-13 03:41:03,339 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-13 03:41:03,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-13 03:41:03,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-13 03:41:03,339 INFO L150 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-13 03:41:03,339 INFO L151 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-13 03:41:03,340 INFO L733 eck$LassoCheckResult]: Stem: 155#ULTIMATE.startENTRY [51] ULTIMATE.startENTRY-->L21-2: Formula: true InVars {} OutVars{ULTIMATE.start_main_#res#1=|v_ULTIMATE.start_main_#res#1_4|, ULTIMATE.start_main_#t~nondet1#1=|v_ULTIMATE.start_main_#t~nondet1#1_3|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_11|, ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_11|, ULTIMATE.start_main_#t~nondet0#1=|v_ULTIMATE.start_main_#t~nondet0#1_3|} AuxVars[] AssignedVars[ULTIMATE.start_main_#res#1, ULTIMATE.start_main_#t~nondet1#1, ULTIMATE.start_main_~p~0#1, ULTIMATE.start_main_~q~0#1, ULTIMATE.start_main_#t~nondet0#1] 156#L21-2 [50] L21-2-->L18: Formula: (and (< 0 |v_ULTIMATE.start_main_~q~0#1_8|) (< |v_ULTIMATE.start_main_~q~0#1_8| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 150#L18 [2023-02-13 03:41:03,340 INFO L735 eck$LassoCheckResult]: Loop: 150#L18 [44] L18-->L21: Formula: (>= |v_ULTIMATE.start_main_~q~0#1_1| |v_ULTIMATE.start_main_~p~0#1_1|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_1|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_1|} AuxVars[] AssignedVars[] 151#L21 [45] L21-->L21-2: Formula: (>= |v_ULTIMATE.start_main_~p~0#1_7| |v_ULTIMATE.start_main_~q~0#1_6|) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_6|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_7|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_6|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_7|} AuxVars[] AssignedVars[] 157#L21-2 [50] L21-2-->L18: Formula: (and (< 0 |v_ULTIMATE.start_main_~q~0#1_8|) (< |v_ULTIMATE.start_main_~q~0#1_8| |v_ULTIMATE.start_main_~p~0#1_9|) (< 0 |v_ULTIMATE.start_main_~p~0#1_9|)) InVars {ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} OutVars{ULTIMATE.start_main_~q~0#1=|v_ULTIMATE.start_main_~q~0#1_8|, ULTIMATE.start_main_~p~0#1=|v_ULTIMATE.start_main_~p~0#1_9|} AuxVars[] AssignedVars[] 150#L18 [2023-02-13 03:41:03,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,341 INFO L85 PathProgramCache]: Analyzing trace with hash 2592, now seen corresponding path program 1 times [2023-02-13 03:41:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,341 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307981668] [2023-02-13 03:41:03,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,345 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-13 03:41:03,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-13 03:41:03,348 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-13 03:41:03,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-13 03:41:03,348 INFO L85 PathProgramCache]: Analyzing trace with hash 73520, now seen corresponding path program 1 times [2023-02-13 03:41:03,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-13 03:41:03,349 INFO L335 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713151181] [2023-02-13 03:41:03,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-13 03:41:03,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-13 03:41:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-13 03:41:03,359 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 03:41:03,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-13 03:41:03,360 INFO L335 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713151181] [2023-02-13 03:41:03,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713151181] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-13 03:41:03,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-13 03:41:03,360 ERROR L191 FreeRefinementEngine]: {162#true} [164#(<= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|), 164#(<= |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~q~0#1|)] {163#false} [2023-02-13 03:41:03,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-13 03:41:03,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631440366] [2023-02-13 03:41:03,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-13 03:41:03,360 INFO L750 eck$LassoCheckResult]: loop already infeasible [2023-02-13 03:41:03,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-13 03:41:03,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-13 03:41:03,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-13 03:41:03,361 INFO L87 Difference]: Start difference. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 3 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 03:41:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-13 03:41:03,368 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-02-13 03:41:03,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-13 03:41:03,368 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:03,368 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2023-02-13 03:41:03,368 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-13 03:41:03,368 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-13 03:41:03,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-13 03:41:03,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-13 03:41:03,368 INFO L220 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:03,369 INFO L242 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-13 03:41:03,369 INFO L426 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-13 03:41:03,369 INFO L333 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-13 03:41:03,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-13 03:41:03,370 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-13 03:41:03,370 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-13 03:41:03,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.02 03:41:03 BasicIcfg [2023-02-13 03:41:03,375 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-13 03:41:03,375 INFO L158 Benchmark]: Toolchain (without parser) took 1865.63ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 65.1MB). Peak memory consumption was 66.5MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,376 INFO L158 Benchmark]: CDTParser took 0.10ms. 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 03:41:03,376 INFO L158 Benchmark]: CACSL2BoogieTranslator took 112.44ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.54ms. 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 03:41:03,376 INFO L158 Benchmark]: Boogie Preprocessor took 9.57ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:03,377 INFO L158 Benchmark]: RCFGBuilder took 184.96ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,377 INFO L158 Benchmark]: BlockEncodingV2 took 39.34ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,377 INFO L158 Benchmark]: TraceAbstraction took 14.62ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. [2023-02-13 03:41:03,377 INFO L158 Benchmark]: BuchiAutomizer took 1484.04ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 32.9MB). Peak memory consumption was 32.9MB. Max. memory is 42.9GB. [2023-02-13 03:41:03,379 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, 7 edges * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 2.1GB. Free memory is still 2.1GB. There was no memory consumed. Max. memory is 42.9GB. * CACSL2BoogieTranslator took 112.44ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * Boogie Procedure Inliner took 16.54ms. 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 9.57ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 42.9GB. * RCFGBuilder took 184.96ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * BlockEncodingV2 took 39.34ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 42.9GB. * TraceAbstraction took 14.62ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.1GB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 42.9GB. * BuchiAutomizer took 1484.04ms. Allocated memory is still 2.1GB. Free memory was 2.1GB in the beginning and 2.0GB in the end (delta: 32.9MB). Peak memory consumption was 32.9MB. 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 4 terminating modules (2 trivial, 0 deterministic, 2 nondeterministic). One nondeterministic module has affine ranking function q and consists of 3 locations. One nondeterministic module has affine ranking function p and consists of 4 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 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, 28 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 6 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 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 03:41:03,423 INFO L552 MonitoredProcess]: [MP /export/starexec/sandbox/solver/Ultimate/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-13 03:41:03,620 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 03:41:03,825 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...