./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.18.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/b.18.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b7b84dd29ea36609e5f5c61ea995baac9099f3fa2331fbdc558930ff5215a280 --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:16:56,667 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:16:56,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:16:56,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:16:56,689 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:16:56,690 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:16:56,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:16:56,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:16:56,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:16:56,694 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:16:56,694 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:16:56,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:16:56,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:16:56,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:16:56,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:16:56,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:16:56,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:16:56,699 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:16:56,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:16:56,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:16:56,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:16:56,703 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:16:56,704 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:16:56,704 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:16:56,706 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:16:56,707 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:16:56,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:16:56,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:16:56,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:16:56,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:16:56,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:16:56,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:16:56,710 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:16:56,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:16:56,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:16:56,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:16:56,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:16:56,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:16:56,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:16:56,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:16:56,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:16:56,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:16:56,737 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:16:56,738 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:16:56,738 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:16:56,738 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:16:56,739 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:16:56,739 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:16:56,739 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:16:56,739 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:16:56,740 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:16:56,740 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:16:56,740 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:16:56,740 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:16:56,740 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:16:56,740 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:16:56,740 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:16:56,741 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:16:56,742 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:16:56,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:16:56,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:16:56,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:16:56,742 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:16:56,742 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:16:56,743 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:16:56,743 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7b84dd29ea36609e5f5c61ea995baac9099f3fa2331fbdc558930ff5215a280 [2023-02-15 14:16:56,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:16:56,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:16:56,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:16:56,965 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:16:56,966 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:16:56,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.18.c [2023-02-15 14:16:57,953 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:16:58,134 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:16:58,135 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.18.c [2023-02-15 14:16:58,139 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed3b040a/b16d5900c390497a808fdcdf35918423/FLAG6e25c68ea [2023-02-15 14:16:58,155 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ed3b040a/b16d5900c390497a808fdcdf35918423 [2023-02-15 14:16:58,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:16:58,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:16:58,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:16:58,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:16:58,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:16:58,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e736f7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58, skipping insertion in model container [2023-02-15 14:16:58,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,171 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:16:58,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:16:58,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:16:58,276 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:16:58,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:16:58,292 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:16:58,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58 WrapperNode [2023-02-15 14:16:58,293 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:16:58,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:16:58,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:16:58,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:16:58,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,312 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2023-02-15 14:16:58,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:16:58,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:16:58,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:16:58,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:16:58,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,323 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:16:58,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:16:58,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:16:58,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:16:58,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (1/1) ... [2023-02-15 14:16:58,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:58,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:58,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:58,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-15 14:16:58,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:16:58,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:16:58,419 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:16:58,420 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:16:58,462 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:16:58,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:16:58,466 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-15 14:16:58,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:16:58 BoogieIcfgContainer [2023-02-15 14:16:58,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:16:58,468 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:16:58,468 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:16:58,471 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:16:58,471 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:16:58,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:16:58" (1/3) ... [2023-02-15 14:16:58,472 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@85366bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:16:58, skipping insertion in model container [2023-02-15 14:16:58,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:16:58,472 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:16:58" (2/3) ... [2023-02-15 14:16:58,472 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@85366bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:16:58, skipping insertion in model container [2023-02-15 14:16:58,472 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:16:58,473 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:16:58" (3/3) ... [2023-02-15 14:16:58,474 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.18.c [2023-02-15 14:16:58,515 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:16:58,515 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:16:58,515 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:16:58,515 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:16:58,515 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:16:58,515 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:16:58,515 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:16:58,515 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:16:58,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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) [2023-02-15 14:16:58,531 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:16:58,531 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:58,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:58,535 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:16:58,536 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 14:16:58,536 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:16:58,536 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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) [2023-02-15 14:16:58,538 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:16:58,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:58,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:58,538 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:16:58,538 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 14:16:58,544 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L15-3true [2023-02-15 14:16:58,545 INFO L750 eck$LassoCheckResult]: Loop: 4#L15-3true assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 5#L10true assume main_~x~0#1 > main_~y~0#1; 9#L11-2true assume !(main_~x~0#1 > 0); 4#L15-3true [2023-02-15 14:16:58,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,549 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-15 14:16:58,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076121194] [2023-02-15 14:16:58,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:58,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:58,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,621 INFO L85 PathProgramCache]: Analyzing trace with hash 40817, now seen corresponding path program 1 times [2023-02-15 14:16:58,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646628680] [2023-02-15 14:16:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:58,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:16:58,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:16:58,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646628680] [2023-02-15 14:16:58,669 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646628680] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:16:58,669 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:16:58,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 14:16:58,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315717334] [2023-02-15 14:16:58,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:16:58,673 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-15 14:16:58,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:16:58,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:16:58,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:16:58,697 INFO L87 Difference]: Start difference. First operand has 10 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 9 states have internal predecessors, (16), 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 1.5) 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) [2023-02-15 14:16:58,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:16:58,713 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2023-02-15 14:16:58,715 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-02-15 14:16:58,715 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-15 14:16:58,718 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 8 states and 11 transitions. [2023-02-15 14:16:58,719 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-15 14:16:58,719 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 14:16:58,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-15 14:16:58,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:16:58,720 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 14:16:58,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-15 14:16:58,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2023-02-15 14:16:58,757 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) [2023-02-15 14:16:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2023-02-15 14:16:58,762 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-15 14:16:58,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:16:58,766 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2023-02-15 14:16:58,766 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:16:58,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2023-02-15 14:16:58,767 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-15 14:16:58,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:58,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:58,767 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:16:58,767 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-15 14:16:58,768 INFO L748 eck$LassoCheckResult]: Stem: 39#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 40#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 35#L15-3 [2023-02-15 14:16:58,768 INFO L750 eck$LassoCheckResult]: Loop: 35#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 36#L10 assume !(main_~x~0#1 > main_~y~0#1); 37#L15-2 assume !(main_~y~0#1 > 0); 35#L15-3 [2023-02-15 14:16:58,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,778 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-15 14:16:58,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621825870] [2023-02-15 14:16:58,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,792 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:58,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:58,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,795 INFO L85 PathProgramCache]: Analyzing trace with hash 41265, now seen corresponding path program 1 times [2023-02-15 14:16:58,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039406156] [2023-02-15 14:16:58,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:16:58,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:16:58,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039406156] [2023-02-15 14:16:58,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039406156] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:16:58,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:16:58,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-15 14:16:58,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296546908] [2023-02-15 14:16:58,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:16:58,831 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-15 14:16:58,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:16:58,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:16:58,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:16:58,832 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. cyclomatic complexity: 4 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) [2023-02-15 14:16:58,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:16:58,843 INFO L93 Difference]: Finished difference Result 9 states and 12 transitions. [2023-02-15 14:16:58,843 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 12 transitions. [2023-02-15 14:16:58,843 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-15 14:16:58,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 9 states and 12 transitions. [2023-02-15 14:16:58,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2023-02-15 14:16:58,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-15 14:16:58,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-15 14:16:58,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:16:58,845 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-15 14:16:58,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-15 14:16:58,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-02-15 14:16:58,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 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) [2023-02-15 14:16:58,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-15 14:16:58,846 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 14:16:58,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:16:58,847 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 14:16:58,847 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-15 14:16:58,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-15 14:16:58,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-15 14:16:58,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:58,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:58,848 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-15 14:16:58,848 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:16:58,849 INFO L748 eck$LassoCheckResult]: Stem: 61#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 62#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 57#L15-3 [2023-02-15 14:16:58,849 INFO L750 eck$LassoCheckResult]: Loop: 57#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 58#L10 assume !(main_~x~0#1 > main_~y~0#1); 59#L15-2 assume !!(main_~y~0#1 > 0);main_~y~0#1 := main_~y~0#1 - 1; 64#L15-2 assume !(main_~y~0#1 > 0); 57#L15-3 [2023-02-15 14:16:58,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,850 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-02-15 14:16:58,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141502075] [2023-02-15 14:16:58,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,853 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:58,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,855 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:58,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1279312, now seen corresponding path program 1 times [2023-02-15 14:16:58,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012630827] [2023-02-15 14:16:58,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,865 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:58,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:58,865 INFO L85 PathProgramCache]: Analyzing trace with hash 889706514, now seen corresponding path program 1 times [2023-02-15 14:16:58,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:58,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135078914] [2023-02-15 14:16:58,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:58,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,871 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:58,877 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:58,917 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:16:58,918 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:16:58,918 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:16:58,918 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:16:58,918 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:16:58,918 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:58,918 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:16:58,919 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:16:58,919 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2023-02-15 14:16:58,919 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:16:58,919 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:16:58,930 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:58,938 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:58,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,019 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:16:59,020 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:16:59,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,026 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-15 14:16:59,028 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:59,028 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,052 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:16:59,052 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: [] [2023-02-15 14:16:59,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,060 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-15 14:16:59,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:59,063 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,079 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:16:59,079 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: [] [2023-02-15 14:16:59,082 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,085 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-15 14:16:59,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:59,089 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,107 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,109 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-15 14:16:59,112 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:16:59,112 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,178 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:16:59,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,182 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:16:59,182 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:16:59,183 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:16:59,183 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:16:59,183 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:16:59,183 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,183 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:16:59,183 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:16:59,183 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration3_Loop [2023-02-15 14:16:59,183 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:16:59,183 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:16:59,184 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,193 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,242 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:16:59,248 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:16:59,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-15 14:16:59,254 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 [2023-02-15 14:16:59,261 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:59,262 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:59,262 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:59,262 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:59,266 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:16:59,266 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:16:59,278 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:16:59,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,285 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-15 14:16:59,289 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 [2023-02-15 14:16:59,296 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:59,296 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:59,296 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:59,296 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:59,300 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:16:59,300 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:16:59,304 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:16:59,307 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,309 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,310 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-15 14:16:59,312 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 [2023-02-15 14:16:59,319 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:59,319 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:16:59,320 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:59,320 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:59,320 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:59,325 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:16:59,326 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:16:59,342 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:16:59,346 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:16:59,346 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 14:16:59,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,348 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-15 14:16:59,351 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:16:59,351 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:16:59,351 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:16:59,352 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-15 14:16:59,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,357 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:16:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:59,376 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:16:59,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:16:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:59,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:16:59,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:16:59,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 14:16:59,410 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-15 14:16:59,411 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:16:59,448 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 17 states and 24 transitions. Complement of second has 6 states. [2023-02-15 14:16:59,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-15 14:16:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:16:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-15 14:16:59,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-15 14:16:59,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:59,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-15 14:16:59,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:59,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-15 14:16:59,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:59,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 24 transitions. [2023-02-15 14:16:59,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:16:59,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 16 states and 22 transitions. [2023-02-15 14:16:59,453 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:16:59,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-15 14:16:59,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 22 transitions. [2023-02-15 14:16:59,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:16:59,454 INFO L218 hiAutomatonCegarLoop]: Abstraction has 16 states and 22 transitions. [2023-02-15 14:16:59,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states and 22 transitions. [2023-02-15 14:16:59,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2023-02-15 14:16:59,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 12 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) [2023-02-15 14:16:59,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 19 transitions. [2023-02-15 14:16:59,456 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-02-15 14:16:59,456 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2023-02-15 14:16:59,456 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-15 14:16:59,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 19 transitions. [2023-02-15 14:16:59,456 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-15 14:16:59,456 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:59,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:59,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 14:16:59,457 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-02-15 14:16:59,457 INFO L748 eck$LassoCheckResult]: Stem: 130#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 131#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 132#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 124#L10 [2023-02-15 14:16:59,457 INFO L750 eck$LassoCheckResult]: Loop: 124#L10 assume main_~x~0#1 > main_~y~0#1; 127#L11-2 assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 133#L11-2 assume !(main_~x~0#1 > 0); 123#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 124#L10 [2023-02-15 14:16:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,458 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-15 14:16:59,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:59,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293131018] [2023-02-15 14:16:59,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:59,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:59,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,461 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,464 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:59,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1363360, now seen corresponding path program 1 times [2023-02-15 14:16:59,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:59,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979572644] [2023-02-15 14:16:59,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:59,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 14:16:59,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:16:59,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979572644] [2023-02-15 14:16:59,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979572644] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:16:59,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:16:59,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:16:59,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152802615] [2023-02-15 14:16:59,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:16:59,478 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-15 14:16:59,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:16:59,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:16:59,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:16:59,479 INFO L87 Difference]: Start difference. First operand 13 states and 19 transitions. cyclomatic complexity: 8 Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:16:59,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:16:59,484 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-02-15 14:16:59,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-02-15 14:16:59,485 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:16:59,485 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2023-02-15 14:16:59,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-15 14:16:59,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-15 14:16:59,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-02-15 14:16:59,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-15 14:16:59,486 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-15 14:16:59,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-02-15 14:16:59,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-02-15 14:16:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 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) [2023-02-15 14:16:59,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-02-15 14:16:59,491 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-02-15 14:16:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:16:59,492 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-02-15 14:16:59,492 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-15 14:16:59,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-02-15 14:16:59,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:16:59,494 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:16:59,494 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:16:59,495 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-15 14:16:59,495 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:16:59,495 INFO L748 eck$LassoCheckResult]: Stem: 163#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 164#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 165#L15-3 assume !!(main_~x~0#1 > 0 && main_~y~0#1 > 0); 158#L10 assume main_~x~0#1 > main_~y~0#1; 161#L11-2 [2023-02-15 14:16:59,495 INFO L750 eck$LassoCheckResult]: Loop: 161#L11-2 assume !!(main_~x~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1; 161#L11-2 [2023-02-15 14:16:59,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,496 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-15 14:16:59,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:59,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106855263] [2023-02-15 14:16:59,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:59,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:59,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:59,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,508 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:59,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,509 INFO L85 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2023-02-15 14:16:59,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:59,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026126344] [2023-02-15 14:16:59,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:59,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:59,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,518 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:59,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,522 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:59,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,524 INFO L85 PathProgramCache]: Analyzing trace with hash 28699761, now seen corresponding path program 1 times [2023-02-15 14:16:59,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:16:59,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35542350] [2023-02-15 14:16:59,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:16:59,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:16:59,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:16:59,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:16:59,538 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:16:59,552 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:16:59,552 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:16:59,552 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:16:59,552 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:16:59,553 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:16:59,553 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,553 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:16:59,553 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:16:59,553 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2023-02-15 14:16:59,553 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:16:59,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:16:59,555 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,560 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,591 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:16:59,591 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:16:59,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,593 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:59,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-15 14:16:59,628 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:16:59,628 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: [] [2023-02-15 14:16:59,635 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,637 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-15 14:16:59,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:59,641 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,663 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:16:59,663 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: [] [2023-02-15 14:16:59,669 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,671 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:16:59,688 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-15 14:16:59,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,717 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-15 14:16:59,721 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:16:59,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:16:59,736 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:16:59,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,740 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:16:59,740 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:16:59,740 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:16:59,740 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:16:59,740 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:16:59,740 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,740 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:16:59,740 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:16:59,740 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.18.c_Iteration5_Loop [2023-02-15 14:16:59,740 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:16:59,740 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:16:59,741 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:16:59,774 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:16:59,774 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:16:59,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,775 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,782 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 [2023-02-15 14:16:59,788 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:59,788 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:59,788 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:59,788 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:59,790 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:16:59,790 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:16:59,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-15 14:16:59,802 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:16:59,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,807 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,815 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 [2023-02-15 14:16:59,822 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:59,822 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:59,822 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:59,822 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:59,824 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:16:59,824 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:16:59,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-15 14:16:59,848 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:16:59,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,853 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-15 14:16:59,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,855 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,869 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 [2023-02-15 14:16:59,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:16:59,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:16:59,876 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:16:59,876 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:16:59,876 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:16:59,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:16:59,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:16:59,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-15 14:16:59,892 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:16:59,894 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:16:59,895 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-15 14:16:59,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:16:59,895 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:16:59,896 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-15 14:16:59,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-15 14:16:59,900 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:16:59,900 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:16:59,900 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:16:59,900 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = 1*ULTIMATE.start_main_~x~0#1 Supporting invariants [] [2023-02-15 14:16:59,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2023-02-15 14:16:59,905 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:16:59,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:16:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:59,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:16:59,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:16:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:16:59,928 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:16:59,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:16:59,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:16:59,929 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:16:59,929 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-02-15 14:16:59,932 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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 11 states and 14 transitions. Complement of second has 2 states. [2023-02-15 14:16:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2023-02-15 14:16:59,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 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) [2023-02-15 14:16:59,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 8 transitions. [2023-02-15 14:16:59,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-15 14:16:59,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:59,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 5 letters. Loop has 1 letters. [2023-02-15 14:16:59,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:59,934 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-15 14:16:59,934 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:16:59,934 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2023-02-15 14:16:59,935 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:16:59,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2023-02-15 14:16:59,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-15 14:16:59,935 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-15 14:16:59,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-15 14:16:59,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:16:59,935 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:16:59,935 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:16:59,936 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 14:16:59,936 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-15 14:16:59,936 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-15 14:16:59,936 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-15 14:16:59,936 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-15 14:16:59,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:16:59 BoogieIcfgContainer [2023-02-15 14:16:59,941 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:16:59,942 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:16:59,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:16:59,942 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:16:59,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:16:58" (3/4) ... [2023-02-15 14:16:59,945 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 14:16:59,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:16:59,945 INFO L158 Benchmark]: Toolchain (without parser) took 1786.53ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 85.0MB in the beginning and 112.8MB in the end (delta: -27.8MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-02-15 14:16:59,946 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:59,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 131.42ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 75.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:16:59,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.60ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 74.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:16:59,947 INFO L158 Benchmark]: Boogie Preprocessor took 11.65ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 73.8MB in the end (delta: 786.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:59,947 INFO L158 Benchmark]: RCFGBuilder took 142.30ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 65.4MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-15 14:16:59,947 INFO L158 Benchmark]: BuchiAutomizer took 1473.38ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 65.0MB in the beginning and 112.8MB in the end (delta: -47.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:59,947 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 151.0MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:16:59,949 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory was 64.3MB in the beginning and 64.2MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 131.42ms. Allocated memory is still 117.4MB. Free memory was 85.0MB in the beginning and 75.9MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.60ms. Allocated memory is still 117.4MB. Free memory was 75.9MB in the beginning and 74.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 11.65ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 73.8MB in the end (delta: 786.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 142.30ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 65.4MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1473.38ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 65.0MB in the beginning and 112.8MB in the end (delta: -47.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 151.0MB. Free memory is still 112.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (3 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 2 locations. 3 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 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: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 34 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 39 mSDtfsCounter, 34 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI3 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax193 hnf100 lsp52 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf100 smp87 dnf96 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms 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! [2023-02-15 14:16:59,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2023-02-15 14:17:00,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE