./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5317dae 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/McCarthyIterative.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 faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:33:00,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:33:00,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:33:00,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:33:00,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:33:00,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:33:00,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:33:00,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:33:00,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:33:00,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:33:00,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:33:00,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:33:00,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:33:00,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:33:00,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:33:00,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:33:00,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:33:00,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:33:00,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:33:00,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:33:00,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:33:00,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:33:00,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:33:00,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:33:00,188 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:33:00,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:33:00,188 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:33:00,189 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:33:00,189 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:33:00,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:33:00,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:33:00,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:33:00,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:33:00,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:33:00,191 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:33:00,191 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:33:00,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:33:00,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:33:00,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:33:00,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:33:00,193 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:33:00,195 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-16 04:33:00,218 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:33:00,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:33:00,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:33:00,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:33:00,220 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:33:00,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:33:00,220 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:33:00,220 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-16 04:33:00,220 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-16 04:33:00,220 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-16 04:33:00,221 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-16 04:33:00,221 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-16 04:33:00,221 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-16 04:33:00,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:33:00,221 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-16 04:33:00,222 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:33:00,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-16 04:33:00,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:33:00,223 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:33:00,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:33:00,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:33:00,224 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-16 04:33:00,225 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faa806fd1be90697a522dfc0988145f6572d5d87fac98caf7aa5fe5b66e6095c [2023-02-16 04:33:00,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:33:00,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:33:00,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:33:00,430 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:33:00,430 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:33:00,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2023-02-16 04:33:01,410 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:33:01,549 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:33:01,549 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/McCarthyIterative.c [2023-02-16 04:33:01,554 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033fa18a1/c7ffc568c45949d198d281a64032ffe6/FLAG69ba71c95 [2023-02-16 04:33:01,571 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/033fa18a1/c7ffc568c45949d198d281a64032ffe6 [2023-02-16 04:33:01,573 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:33:01,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:33:01,576 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:33:01,576 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:33:01,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:33:01,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,579 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c67e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01, skipping insertion in model container [2023-02-16 04:33:01,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:33:01,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:33:01,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:33:01,674 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:33:01,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:33:01,689 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:33:01,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01 WrapperNode [2023-02-16 04:33:01,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:33:01,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:33:01,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:33:01,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:33:01,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,707 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-16 04:33:01,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:33:01,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:33:01,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:33:01,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:33:01,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:33:01,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:33:01,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:33:01,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:33:01,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (1/1) ... [2023-02-16 04:33:01,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:01,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:01,740 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) [2023-02-16 04:33:01,747 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 [2023-02-16 04:33:01,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:33:01,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:33:01,817 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:33:01,819 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:33:01,894 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:33:01,898 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:33:01,899 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 04:33:01,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:33:01 BoogieIcfgContainer [2023-02-16 04:33:01,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:33:01,902 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-16 04:33:01,902 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-16 04:33:01,905 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-16 04:33:01,906 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:33:01,906 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.02 04:33:01" (1/3) ... [2023-02-16 04:33:01,907 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f8d85c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:33:01, skipping insertion in model container [2023-02-16 04:33:01,907 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:33:01,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:33:01" (2/3) ... [2023-02-16 04:33:01,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f8d85c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:33:01, skipping insertion in model container [2023-02-16 04:33:01,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:33:01,910 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:33:01" (3/3) ... [2023-02-16 04:33:01,911 INFO L332 chiAutomizerObserver]: Analyzing ICFG McCarthyIterative.c [2023-02-16 04:33:01,960 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-16 04:33:01,960 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-16 04:33:01,960 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-16 04:33:01,960 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-16 04:33:01,960 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-16 04:33:01,960 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-16 04:33:01,961 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-16 04:33:01,961 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-16 04:33:01,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2023-02-16 04:33:01,976 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:01,976 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:01,976 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:01,979 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:33:01,980 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:01,980 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-16 04:33:01,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) [2023-02-16 04:33:01,981 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:01,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:01,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:01,982 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:33:01,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:01,988 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 2#L12-2true [2023-02-16 04:33:01,989 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~c~0#1 > 0); 8#L12true assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2#L12-2true [2023-02-16 04:33:01,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:01,993 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-16 04:33:01,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:02,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120352937] [2023-02-16 04:33:02,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:02,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:02,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:02,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-16 04:33:02,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:02,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081924136] [2023-02-16 04:33:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:02,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,100 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,111 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:02,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:02,113 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-16 04:33:02,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:02,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863039195] [2023-02-16 04:33:02,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:02,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,128 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,137 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:02,216 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:02,229 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:02,229 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:02,229 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:02,230 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:02,230 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,230 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:02,230 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:02,230 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2023-02-16 04:33:02,230 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:02,230 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:02,241 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,268 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,271 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,274 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,348 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:02,348 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:02,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,352 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) [2023-02-16 04:33:02,353 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 [2023-02-16 04:33:02,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:02,356 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:02,374 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 [2023-02-16 04:33:02,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,375 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) [2023-02-16 04:33:02,378 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 [2023-02-16 04:33:02,378 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:02,378 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:02,401 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:02,407 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 [2023-02-16 04:33:02,407 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:02,407 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:02,408 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:02,408 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:02,408 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:02,408 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,408 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:02,408 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:02,408 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration1_Loop [2023-02-16 04:33:02,408 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:02,408 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:02,409 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,417 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,421 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,426 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,479 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:02,482 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:02,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,493 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) [2023-02-16 04:33:02,495 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 [2023-02-16 04:33:02,497 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 [2023-02-16 04:33:02,504 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:02,504 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:02,505 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:02,505 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:02,505 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:02,512 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:02,512 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:02,525 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:02,539 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:02,540 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:02,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,544 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) [2023-02-16 04:33:02,546 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 [2023-02-16 04:33:02,547 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:02,547 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:02,548 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:02,548 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-02-16 04:33:02,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-16 04:33:02,556 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:02,605 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 [2023-02-16 04:33:02,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:02,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:02,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:02,628 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:02,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:02,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:02,655 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 [2023-02-16 04:33:02,657 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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) Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2023-02-16 04:33:02,686 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 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). Second operand has 3 states, 3 states have (on average 1.3333333333333333) 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) Result 24 states and 31 transitions. Complement of second has 6 states. [2023-02-16 04:33:02,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:02,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) 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) [2023-02-16 04:33:02,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-16 04:33:02,698 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-16 04:33:02,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:02,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-16 04:33:02,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:02,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-16 04:33:02,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:02,700 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2023-02-16 04:33:02,701 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:02,703 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2023-02-16 04:33:02,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-16 04:33:02,704 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-16 04:33:02,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-16 04:33:02,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:02,704 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-16 04:33:02,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-16 04:33:02,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-16 04:33:02,720 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) [2023-02-16 04:33:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-16 04:33:02,721 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-16 04:33:02,721 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-16 04:33:02,721 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-16 04:33:02,721 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-16 04:33:02,723 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:02,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:02,723 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:02,723 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-16 04:33:02,723 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:02,723 INFO L748 eck$LassoCheckResult]: Stem: 72#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 73#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 74#L12-2 assume !!(main_~c~0#1 > 0); 71#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 67#L12-2 [2023-02-16 04:33:02,724 INFO L750 eck$LassoCheckResult]: Loop: 67#L12-2 assume !!(main_~c~0#1 > 0); 68#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 67#L12-2 [2023-02-16 04:33:02,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:02,725 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-16 04:33:02,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:02,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139574071] [2023-02-16 04:33:02,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:02,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,731 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,735 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:02,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:02,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-02-16 04:33:02,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:02,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095402717] [2023-02-16 04:33:02,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:02,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:02,751 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-02-16 04:33:02,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:02,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262551025] [2023-02-16 04:33:02,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:02,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:02,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:33:02,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262551025] [2023-02-16 04:33:02,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262551025] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:33:02,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:33:02,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-16 04:33:02,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044531630] [2023-02-16 04:33:02,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:33:02,835 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:02,835 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:02,835 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:02,835 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:02,835 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:02,835 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,836 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:02,836 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:02,836 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2023-02-16 04:33:02,836 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:02,836 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:02,837 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,839 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:02,893 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:02,893 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:02,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,895 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) [2023-02-16 04:33:02,897 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 [2023-02-16 04:33:02,899 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:02,899 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:02,920 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:02,920 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: [] [2023-02-16 04:33:02,931 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 [2023-02-16 04:33:02,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,934 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) [2023-02-16 04:33:02,936 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 [2023-02-16 04:33:02,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:02,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:02,960 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:02,960 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: [] [2023-02-16 04:33:02,968 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 [2023-02-16 04:33:02,969 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,970 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) [2023-02-16 04:33:02,970 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 [2023-02-16 04:33:02,974 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:02,974 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:02,991 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 [2023-02-16 04:33:02,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:02,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:02,993 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) [2023-02-16 04:33:02,993 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 [2023-02-16 04:33:02,996 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:02,996 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,022 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:03,022 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 6, 11] Nus: [0, 0] [2023-02-16 04:33:03,034 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 [2023-02-16 04:33:03,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,036 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) [2023-02-16 04:33:03,037 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 [2023-02-16 04:33:03,039 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:03,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,063 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 [2023-02-16 04:33:03,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,065 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) [2023-02-16 04:33:03,074 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:03,074 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,074 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 [2023-02-16 04:33:03,096 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:03,100 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 [2023-02-16 04:33:03,100 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:03,100 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:03,100 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:03,100 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:03,101 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:03,101 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,101 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:03,101 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:03,101 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration2_Loop [2023-02-16 04:33:03,101 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:03,101 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:03,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,105 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,152 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:03,152 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:03,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,154 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) [2023-02-16 04:33:03,156 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 [2023-02-16 04:33:03,157 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 [2023-02-16 04:33:03,165 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:03,165 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:03,165 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:03,165 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:03,168 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:03,168 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:03,185 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:03,194 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 [2023-02-16 04:33:03,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,195 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) [2023-02-16 04:33:03,197 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 [2023-02-16 04:33:03,199 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 [2023-02-16 04:33:03,205 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:03,206 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:03,206 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:03,206 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:03,208 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:03,208 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:03,221 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:03,224 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 [2023-02-16 04:33:03,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,225 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) [2023-02-16 04:33:03,225 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 [2023-02-16 04:33:03,228 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 [2023-02-16 04:33:03,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:03,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:03,235 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:03,235 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:03,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:03,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:03,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:03,244 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:03,248 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 [2023-02-16 04:33:03,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,249 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) [2023-02-16 04:33:03,251 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 [2023-02-16 04:33:03,252 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 [2023-02-16 04:33:03,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:03,258 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:03,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:03,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:03,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:03,259 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:03,259 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:03,274 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:03,277 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:03,277 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:03,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,278 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) [2023-02-16 04:33:03,280 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 [2023-02-16 04:33:03,281 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:03,281 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:03,281 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:03,281 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-02-16 04:33:03,286 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 [2023-02-16 04:33:03,287 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:03,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,318 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:03,324 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 [2023-02-16 04:33:03,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 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) [2023-02-16 04:33:03,333 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. 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 12 states and 17 transitions. Complement of second has 5 states. [2023-02-16 04:33:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:03,339 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) [2023-02-16 04:33:03,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-16 04:33:03,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-16 04:33:03,340 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:03,340 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-16 04:33:03,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:03,341 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-16 04:33:03,341 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:03,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-02-16 04:33:03,342 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:03,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-02-16 04:33:03,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-16 04:33:03,344 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-16 04:33:03,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-16 04:33:03,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:03,344 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-16 04:33:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-16 04:33:03,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-16 04:33:03,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 11 states have internal predecessors, (17), 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) [2023-02-16 04:33:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-02-16 04:33:03,346 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-16 04:33:03,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:33:03,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:33:03,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:33:03,349 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-02-16 04:33:03,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:33:03,363 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2023-02-16 04:33:03,363 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 19 transitions. [2023-02-16 04:33:03,365 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:03,365 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 17 transitions. [2023-02-16 04:33:03,365 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-16 04:33:03,365 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-16 04:33:03,365 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 17 transitions. [2023-02-16 04:33:03,366 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:03,366 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 17 transitions. [2023-02-16 04:33:03,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 17 transitions. [2023-02-16 04:33:03,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2023-02-16 04:33:03,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 11 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) [2023-02-16 04:33:03,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2023-02-16 04:33:03,369 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-02-16 04:33:03,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:33:03,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2023-02-16 04:33:03,372 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-16 04:33:03,372 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 16 transitions. [2023-02-16 04:33:03,374 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-16 04:33:03,374 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:03,374 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:03,375 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2023-02-16 04:33:03,375 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:03,376 INFO L748 eck$LassoCheckResult]: Stem: 158#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 159#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 153#L12-2 assume !!(main_~c~0#1 > 0); 154#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 164#L12-2 assume !!(main_~c~0#1 > 0); 160#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 161#L12-2 assume !!(main_~c~0#1 > 0); 156#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 163#L12-2 [2023-02-16 04:33:03,376 INFO L750 eck$LassoCheckResult]: Loop: 163#L12-2 assume !!(main_~c~0#1 > 0); 162#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 163#L12-2 [2023-02-16 04:33:03,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,376 INFO L85 PathProgramCache]: Analyzing trace with hash 297591406, now seen corresponding path program 2 times [2023-02-16 04:33:03,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:03,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627843067] [2023-02-16 04:33:03,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:03,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:03,397 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:03,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:03,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-02-16 04:33:03,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:03,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86499273] [2023-02-16 04:33:03,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:03,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:03,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:03,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:03,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:03,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1777467309, now seen corresponding path program 3 times [2023-02-16 04:33:03,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:03,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245944839] [2023-02-16 04:33:03,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:03,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 04:33:03,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:33:03,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245944839] [2023-02-16 04:33:03,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245944839] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:33:03,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519682986] [2023-02-16 04:33:03,467 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 04:33:03,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:33:03,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,468 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:33:03,502 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-02-16 04:33:03,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 04:33:03,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-16 04:33:03,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 04:33:03,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:33:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 04:33:03,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519682986] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:33:03,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:33:03,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2023-02-16 04:33:03,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010540017] [2023-02-16 04:33:03,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:33:03,581 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:03,582 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:03,582 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:03,582 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:03,582 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:03,582 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,582 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:03,582 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:03,582 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2023-02-16 04:33:03,582 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:03,582 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:03,583 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,585 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,589 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:03,626 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:03,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,631 INFO L229 MonitoredProcess]: Starting monitored process 18 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) [2023-02-16 04:33:03,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-16 04:33:03,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:03,635 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,656 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:03,656 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:33:03,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,663 INFO L229 MonitoredProcess]: Starting monitored process 19 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) [2023-02-16 04:33:03,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-16 04:33:03,666 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:03,666 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,689 INFO L229 MonitoredProcess]: Starting monitored process 20 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) [2023-02-16 04:33:03,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-16 04:33:03,693 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:03,694 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,709 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:03,710 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0#1=1} Honda state: {ULTIMATE.start_main_~c~0#1=1} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0#1=1}, {ULTIMATE.start_main_~c~0#1=0}, {ULTIMATE.start_main_~c~0#1=0}] Lambdas: [1, 6, 11] Nus: [0, 0] [2023-02-16 04:33:03,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,715 INFO L229 MonitoredProcess]: Starting monitored process 21 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) [2023-02-16 04:33:03,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-16 04:33:03,718 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:03,718 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,728 INFO L229 MonitoredProcess]: Starting monitored process 22 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) [2023-02-16 04:33:03,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-16 04:33:03,732 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:03,732 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:03,746 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:03,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,750 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:03,750 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:03,750 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:03,750 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:03,750 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:03,750 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,750 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:03,750 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:03,750 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration3_Loop [2023-02-16 04:33:03,750 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:03,750 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:03,751 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,757 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,768 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,771 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:03,803 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:03,803 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:03,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,805 INFO L229 MonitoredProcess]: Starting monitored process 23 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) [2023-02-16 04:33:03,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-16 04:33:03,808 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 [2023-02-16 04:33:03,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:03,814 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:03,814 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:03,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:03,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:03,815 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:03,815 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:03,830 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:03,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,837 INFO L229 MonitoredProcess]: Starting monitored process 24 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) [2023-02-16 04:33:03,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-16 04:33:03,840 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 [2023-02-16 04:33:03,846 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:03,846 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:03,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:03,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:03,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:03,847 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:03,847 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:03,861 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:03,864 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:03,864 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:03,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:03,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:03,865 INFO L229 MonitoredProcess]: Starting monitored process 25 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) [2023-02-16 04:33:03,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-16 04:33:03,868 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:03,868 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:03,868 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:03,868 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 211 Supporting invariants [] [2023-02-16 04:33:03,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,877 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:03,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,905 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:03,913 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 [2023-02-16 04:33:03,913 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:03,918 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14 states and 20 transitions. Complement of second has 5 states. [2023-02-16 04:33:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:03,931 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-16 04:33:03,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-16 04:33:03,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:03,936 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,968 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:03,975 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:33:03,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:03,981 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14 states and 20 transitions. Complement of second has 5 states. [2023-02-16 04:33:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:03,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:03,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-16 04:33:03,984 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-16 04:33:03,984 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:03,984 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:03,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:03,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:03,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,012 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:04,016 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-16 04:33:04,016 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,025 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 16 transitions. cyclomatic complexity: 7. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 16 states and 23 transitions. Complement of second has 4 states. [2023-02-16 04:33:04,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:04,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-16 04:33:04,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-16 04:33:04,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2023-02-16 04:33:04,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 4 letters. [2023-02-16 04:33:04,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,029 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 23 transitions. [2023-02-16 04:33:04,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:33:04,033 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 19 transitions. [2023-02-16 04:33:04,033 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-16 04:33:04,033 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-16 04:33:04,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2023-02-16 04:33:04,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:04,034 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 19 transitions. [2023-02-16 04:33:04,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2023-02-16 04:33:04,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 7. [2023-02-16 04:33:04,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 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) [2023-02-16 04:33:04,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-02-16 04:33:04,035 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-16 04:33:04,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:33:04,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:33:04,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:33:04,035 INFO L87 Difference]: Start difference. First operand 7 states and 9 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-02-16 04:33:04,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:33:04,046 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2023-02-16 04:33:04,046 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 17 transitions. [2023-02-16 04:33:04,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-16 04:33:04,047 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 15 transitions. [2023-02-16 04:33:04,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-16 04:33:04,047 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-16 04:33:04,047 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2023-02-16 04:33:04,047 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:04,047 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 15 transitions. [2023-02-16 04:33:04,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2023-02-16 04:33:04,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2023-02-16 04:33:04,048 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) [2023-02-16 04:33:04,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2023-02-16 04:33:04,048 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-02-16 04:33:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:33:04,049 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2023-02-16 04:33:04,049 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-16 04:33:04,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2023-02-16 04:33:04,049 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-16 04:33:04,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:04,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:04,050 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:33:04,050 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-02-16 04:33:04,050 INFO L748 eck$LassoCheckResult]: Stem: 408#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 409#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 403#L12-2 [2023-02-16 04:33:04,050 INFO L750 eck$LassoCheckResult]: Loop: 403#L12-2 assume !!(main_~c~0#1 > 0); 404#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 412#L12-2 assume !!(main_~c~0#1 > 0); 410#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 403#L12-2 [2023-02-16 04:33:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,050 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-16 04:33:04,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319364327] [2023-02-16 04:33:04,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,052 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,053 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,054 INFO L85 PathProgramCache]: Analyzing trace with hash 1266953, now seen corresponding path program 1 times [2023-02-16 04:33:04,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13460053] [2023-02-16 04:33:04,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 889694155, now seen corresponding path program 4 times [2023-02-16 04:33:04,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082699210] [2023-02-16 04:33:04,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,062 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,071 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,102 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:04,102 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:04,102 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:04,102 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:04,102 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:04,102 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,102 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:04,103 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:04,103 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2023-02-16 04:33:04,103 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:04,103 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:04,103 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,108 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,110 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,113 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,165 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:04,165 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:04,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,166 INFO L229 MonitoredProcess]: Starting monitored process 26 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) [2023-02-16 04:33:04,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-16 04:33:04,170 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:04,170 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:04,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:04,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,180 INFO L229 MonitoredProcess]: Starting monitored process 27 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) [2023-02-16 04:33:04,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-16 04:33:04,183 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:04,184 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:04,196 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:04,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:04,202 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:04,202 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:04,202 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:04,202 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:04,202 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:04,202 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,202 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:04,202 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:04,202 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration4_Loop [2023-02-16 04:33:04,202 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:04,202 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:04,203 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,214 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,218 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,220 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,254 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:04,254 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:04,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,256 INFO L229 MonitoredProcess]: Starting monitored process 28 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) [2023-02-16 04:33:04,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-16 04:33:04,259 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 [2023-02-16 04:33:04,265 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:04,265 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:04,265 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:04,265 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:04,265 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:04,266 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:04,266 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:04,281 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:04,283 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:04,283 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:04,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,293 INFO L229 MonitoredProcess]: Starting monitored process 29 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) [2023-02-16 04:33:04,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-16 04:33:04,297 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:04,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:04,297 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:04,297 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 201 Supporting invariants [] [2023-02-16 04:33:04,300 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2023-02-16 04:33:04,300 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:04,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:04,347 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 [2023-02-16 04:33:04,347 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-02-16 04:33:04,354 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 21 states and 27 transitions. Complement of second has 5 states. [2023-02-16 04:33:04,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-02-16 04:33:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-02-16 04:33:04,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-16 04:33:04,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,356 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:04,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:04,389 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-16 04:33:04,389 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-02-16 04:33:04,400 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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 25 states and 33 transitions. Complement of second has 7 states. [2023-02-16 04:33:04,400 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 [2023-02-16 04:33:04,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 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) [2023-02-16 04:33:04,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-02-16 04:33:04,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-16 04:33:04,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-16 04:33:04,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,401 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 8 letters. [2023-02-16 04:33:04,401 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,401 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 33 transitions. [2023-02-16 04:33:04,402 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:33:04,402 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 17 states and 22 transitions. [2023-02-16 04:33:04,402 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-16 04:33:04,402 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-16 04:33:04,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2023-02-16 04:33:04,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:04,403 INFO L218 hiAutomatonCegarLoop]: Abstraction has 17 states and 22 transitions. [2023-02-16 04:33:04,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2023-02-16 04:33:04,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-02-16 04:33:04,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 14 states have internal predecessors, (20), 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) [2023-02-16 04:33:04,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2023-02-16 04:33:04,404 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-02-16 04:33:04,404 INFO L428 stractBuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2023-02-16 04:33:04,404 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-16 04:33:04,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2023-02-16 04:33:04,404 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-16 04:33:04,405 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:04,405 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:04,405 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-02-16 04:33:04,405 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-16 04:33:04,405 INFO L748 eck$LassoCheckResult]: Stem: 526#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 527#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 523#L12-2 assume !!(main_~c~0#1 > 0); 524#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 530#L12-2 assume !!(main_~c~0#1 > 0); 532#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 536#L12-2 assume !!(main_~c~0#1 > 0); 535#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 531#L12-2 assume !!(main_~c~0#1 > 0); 528#L12 [2023-02-16 04:33:04,405 INFO L750 eck$LassoCheckResult]: Loop: 528#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 529#L12-2 assume !!(main_~c~0#1 > 0); 528#L12 [2023-02-16 04:33:04,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,406 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 5 times [2023-02-16 04:33:04,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880369256] [2023-02-16 04:33:04,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 1 times [2023-02-16 04:33:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121194708] [2023-02-16 04:33:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,424 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,425 INFO L85 PathProgramCache]: Analyzing trace with hash 790346520, now seen corresponding path program 6 times [2023-02-16 04:33:04,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958189403] [2023-02-16 04:33:04,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,429 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,449 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:04,450 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:04,450 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:04,450 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:04,450 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:04,450 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,450 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:04,450 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:04,450 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2023-02-16 04:33:04,450 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:04,450 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:04,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,495 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:04,495 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:04,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,496 INFO L229 MonitoredProcess]: Starting monitored process 30 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) [2023-02-16 04:33:04,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-16 04:33:04,501 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:04,501 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:04,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:04,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,526 INFO L229 MonitoredProcess]: Starting monitored process 31 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) [2023-02-16 04:33:04,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-16 04:33:04,529 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:04,529 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:04,551 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:04,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:04,555 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:04,555 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:04,555 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:04,555 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:04,555 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:04,555 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,555 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:04,555 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:04,555 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration5_Loop [2023-02-16 04:33:04,555 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:04,555 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:04,556 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,561 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,565 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,569 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,600 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:04,600 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:04,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,601 INFO L229 MonitoredProcess]: Starting monitored process 32 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) [2023-02-16 04:33:04,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-16 04:33:04,605 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 [2023-02-16 04:33:04,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:04,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:04,611 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:04,611 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:04,611 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:04,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:04,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:04,626 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:04,628 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:33:04,628 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:04,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,629 INFO L229 MonitoredProcess]: Starting monitored process 33 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) [2023-02-16 04:33:04,631 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-16 04:33:04,632 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:04,633 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:04,633 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:04,633 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 [] [2023-02-16 04:33:04,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2023-02-16 04:33:04,636 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:04,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,661 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:04,670 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 [2023-02-16 04:33:04,670 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,673 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 16 states and 21 transitions. Complement of second has 3 states. [2023-02-16 04:33:04,673 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 [2023-02-16 04:33:04,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-02-16 04:33:04,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-16 04:33:04,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,674 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,695 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:04,706 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-16 04:33:04,706 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,708 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 16 states and 21 transitions. Complement of second has 3 states. [2023-02-16 04:33:04,709 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 [2023-02-16 04:33:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-02-16 04:33:04,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-16 04:33:04,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,709 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:04,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:04,733 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:33:04,733 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:04,743 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-16 04:33:04,743 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,748 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 25 states and 30 transitions. Complement of second has 4 states. [2023-02-16 04:33:04,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:04,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:04,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2023-02-16 04:33:04,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-16 04:33:04,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 11 letters. Loop has 2 letters. [2023-02-16 04:33:04,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,750 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-16 04:33:04,750 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:04,750 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 30 transitions. [2023-02-16 04:33:04,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2023-02-16 04:33:04,751 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 25 transitions. [2023-02-16 04:33:04,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-16 04:33:04,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-16 04:33:04,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 25 transitions. [2023-02-16 04:33:04,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:04,751 INFO L218 hiAutomatonCegarLoop]: Abstraction has 20 states and 25 transitions. [2023-02-16 04:33:04,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 25 transitions. [2023-02-16 04:33:04,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 16. [2023-02-16 04:33:04,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 16 states have (on average 1.3125) internal successors, (21), 15 states have internal predecessors, (21), 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) [2023-02-16 04:33:04,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2023-02-16 04:33:04,752 INFO L240 hiAutomatonCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-02-16 04:33:04,752 INFO L428 stractBuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2023-02-16 04:33:04,752 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-16 04:33:04,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2023-02-16 04:33:04,752 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-16 04:33:04,752 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:04,752 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:04,752 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-02-16 04:33:04,752 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-02-16 04:33:04,753 INFO L748 eck$LassoCheckResult]: Stem: 720#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 721#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 717#L12-2 assume !!(main_~c~0#1 > 0); 718#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 732#L12-2 assume !!(main_~c~0#1 > 0); 726#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 730#L12-2 assume !!(main_~c~0#1 > 0); 729#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 725#L12-2 assume !!(main_~c~0#1 > 0); 722#L12 [2023-02-16 04:33:04,753 INFO L750 eck$LassoCheckResult]: Loop: 722#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 723#L12-2 assume !!(main_~c~0#1 > 0); 727#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 728#L12-2 assume !!(main_~c~0#1 > 0); 722#L12 [2023-02-16 04:33:04,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,753 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 7 times [2023-02-16 04:33:04,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349337093] [2023-02-16 04:33:04,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,759 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 2 times [2023-02-16 04:33:04,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001399640] [2023-02-16 04:33:04,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:04,763 INFO L85 PathProgramCache]: Analyzing trace with hash -686205165, now seen corresponding path program 8 times [2023-02-16 04:33:04,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:04,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871113368] [2023-02-16 04:33:04,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:04,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:04,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:04,781 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:04,810 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:04,810 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:04,810 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:04,810 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:04,810 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:04,810 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,810 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:04,810 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:04,810 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2023-02-16 04:33:04,810 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:04,810 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:04,811 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,816 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,818 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,819 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,849 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:04,849 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:04,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,850 INFO L229 MonitoredProcess]: Starting monitored process 34 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) [2023-02-16 04:33:04,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-16 04:33:04,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:04,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:04,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2023-02-16 04:33:04,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,878 INFO L229 MonitoredProcess]: Starting monitored process 35 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) [2023-02-16 04:33:04,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-16 04:33:04,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:04,881 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:04,902 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:04,905 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2023-02-16 04:33:04,905 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:04,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:04,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:04,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:04,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:04,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:04,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:04,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration6_Loop [2023-02-16 04:33:04,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:04,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:04,907 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,913 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,914 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:04,944 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:04,944 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:04,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,946 INFO L229 MonitoredProcess]: Starting monitored process 36 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) [2023-02-16 04:33:04,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-16 04:33:04,949 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 [2023-02-16 04:33:04,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:04,955 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:04,955 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:04,955 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:04,955 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:04,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:04,956 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:04,970 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:04,972 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:04,972 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:04,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:04,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:04,973 INFO L229 MonitoredProcess]: Starting monitored process 37 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) [2023-02-16 04:33:04,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-16 04:33:04,976 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:04,976 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:04,976 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:04,976 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0#1) = -2*ULTIMATE.start_main_~x~0#1 + 221 Supporting invariants [] [2023-02-16 04:33:04,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:04,982 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:05,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:05,038 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2023-02-16 04:33:05,041 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:33:05,041 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-16 04:33:05,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:05,055 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 27 states and 33 transitions. Complement of second has 7 states. [2023-02-16 04:33:05,056 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 [2023-02-16 04:33:05,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-16 04:33:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-16 04:33:05,056 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-16 04:33:05,056 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,056 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:05,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:05,104 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:33:05,104 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-16 04:33:05,126 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 26 states and 33 transitions. Complement of second has 7 states. [2023-02-16 04:33:05,126 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 [2023-02-16 04:33:05,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-16 04:33:05,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-16 04:33:05,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-16 04:33:05,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,127 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:05,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,171 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:05,172 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:33:05,172 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-16 04:33:05,183 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) Result 42 states and 53 transitions. Complement of second has 8 states. [2023-02-16 04:33:05,184 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 [2023-02-16 04:33:05,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 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) [2023-02-16 04:33:05,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-02-16 04:33:05,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-16 04:33:05,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 13 letters. Loop has 4 letters. [2023-02-16 04:33:05,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 8 letters. [2023-02-16 04:33:05,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,185 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 53 transitions. [2023-02-16 04:33:05,186 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2023-02-16 04:33:05,186 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 31 states and 40 transitions. [2023-02-16 04:33:05,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-16 04:33:05,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-16 04:33:05,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 40 transitions. [2023-02-16 04:33:05,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:05,187 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 40 transitions. [2023-02-16 04:33:05,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 40 transitions. [2023-02-16 04:33:05,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2023-02-16 04:33:05,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 26 states have (on average 1.3461538461538463) internal successors, (35), 25 states have internal predecessors, (35), 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) [2023-02-16 04:33:05,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 35 transitions. [2023-02-16 04:33:05,188 INFO L240 hiAutomatonCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-02-16 04:33:05,189 INFO L428 stractBuchiCegarLoop]: Abstraction has 26 states and 35 transitions. [2023-02-16 04:33:05,189 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-16 04:33:05,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 26 states and 35 transitions. [2023-02-16 04:33:05,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2023-02-16 04:33:05,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:05,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:05,191 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [7, 3, 3, 1, 1] [2023-02-16 04:33:05,191 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [5, 3, 2] [2023-02-16 04:33:05,191 INFO L748 eck$LassoCheckResult]: Stem: 992#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 993#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 994#L12-2 assume !!(main_~c~0#1 > 0); 1003#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1004#L12-2 assume !!(main_~c~0#1 > 0); 1001#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 999#L12-2 assume !!(main_~c~0#1 > 0); 998#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 988#L12-2 assume !!(main_~c~0#1 > 0); 989#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 996#L12-2 assume !!(main_~c~0#1 > 0); 1011#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1010#L12-2 assume !!(main_~c~0#1 > 0); 1009#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1007#L12-2 assume !!(main_~c~0#1 > 0); 1008#L12 [2023-02-16 04:33:05,191 INFO L750 eck$LassoCheckResult]: Loop: 1008#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 990#L12-2 assume !!(main_~c~0#1 > 0); 991#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1012#L12-2 assume !!(main_~c~0#1 > 0); 997#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 996#L12-2 assume !!(main_~c~0#1 > 0); 1011#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 1010#L12-2 assume !!(main_~c~0#1 > 0); 1009#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 1007#L12-2 assume !!(main_~c~0#1 > 0); 1008#L12 [2023-02-16 04:33:05,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1981740944, now seen corresponding path program 9 times [2023-02-16 04:33:05,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:05,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380141625] [2023-02-16 04:33:05,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:05,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:33:05,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:33:05,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380141625] [2023-02-16 04:33:05,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380141625] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:33:05,221 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:33:05,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-16 04:33:05,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671097664] [2023-02-16 04:33:05,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:33:05,222 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-16 04:33:05,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,222 INFO L85 PathProgramCache]: Analyzing trace with hash 743859438, now seen corresponding path program 3 times [2023-02-16 04:33:05,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:05,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68954305] [2023-02-16 04:33:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:05,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:05,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:05,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:05,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:05,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:05,287 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:05,287 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:05,287 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:05,287 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:05,287 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:05,287 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,287 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:05,287 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:05,287 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2023-02-16 04:33:05,287 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:05,287 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:05,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,290 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,293 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,295 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,326 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:05,326 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:05,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,327 INFO L229 MonitoredProcess]: Starting monitored process 38 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) [2023-02-16 04:33:05,329 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-16 04:33:05,330 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:05,330 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:05,342 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:05,342 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_13=1} Honda state: {v_rep~unnamed0~0~true_13=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:33:05,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:05,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,346 INFO L229 MonitoredProcess]: Starting monitored process 39 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) [2023-02-16 04:33:05,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-16 04:33:05,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:05,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:05,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:05,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,361 INFO L229 MonitoredProcess]: Starting monitored process 40 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) [2023-02-16 04:33:05,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-16 04:33:05,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:05,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:05,430 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:05,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2023-02-16 04:33:05,433 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:05,434 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:05,434 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:05,434 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:05,434 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:05,434 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,434 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:05,434 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:05,434 INFO L133 ssoRankerPreferences]: Filename of dumped script: McCarthyIterative.c_Iteration7_Loop [2023-02-16 04:33:05,434 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:05,434 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:05,434 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:05,497 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:05,497 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:05,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,498 INFO L229 MonitoredProcess]: Starting monitored process 41 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) [2023-02-16 04:33:05,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-16 04:33:05,502 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 [2023-02-16 04:33:05,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:05,508 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:05,508 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:05,508 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:05,509 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:05,509 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:05,532 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:05,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:05,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,537 INFO L229 MonitoredProcess]: Starting monitored process 42 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) [2023-02-16 04:33:05,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-16 04:33:05,541 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 [2023-02-16 04:33:05,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:05,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:05,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:05,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:05,549 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:05,549 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:05,563 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:05,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:05,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,571 INFO L229 MonitoredProcess]: Starting monitored process 43 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) [2023-02-16 04:33:05,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-02-16 04:33:05,574 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 [2023-02-16 04:33:05,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:05,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:05,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:05,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:05,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:05,582 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:05,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:05,596 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:05,597 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:33:05,597 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:33:05,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:05,598 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:05,599 INFO L229 MonitoredProcess]: Starting monitored process 44 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) [2023-02-16 04:33:05,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-02-16 04:33:05,602 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:05,602 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:05,602 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:05,602 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~c~0#1) = 1*ULTIMATE.start_main_~c~0#1 Supporting invariants [] [2023-02-16 04:33:05,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-02-16 04:33:05,605 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:05,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,678 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:33:05,679 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-02-16 04:33:05,679 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,682 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 27 states and 36 transitions. Complement of second has 3 states. [2023-02-16 04:33:05,684 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 [2023-02-16 04:33:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-02-16 04:33:05,684 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2023-02-16 04:33:05,684 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,685 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:05,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,759 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:33:05,759 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-02-16 04:33:05,759 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,763 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 27 states and 36 transitions. Complement of second has 3 states. [2023-02-16 04:33:05,763 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 [2023-02-16 04:33:05,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2023-02-16 04:33:05,764 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 15 letters. Loop has 10 letters. [2023-02-16 04:33:05,764 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,764 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:05,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,848 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:33:05,848 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-02-16 04:33:05,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,859 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 43 states and 61 transitions. Complement of second has 4 states. [2023-02-16 04:33:05,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:05,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-16 04:33:05,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 15 letters. Loop has 10 letters. [2023-02-16 04:33:05,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,860 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:05,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,931 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:33:05,932 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.1 stem predicates 5 loop predicates [2023-02-16 04:33:05,932 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,947 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 26 states and 35 transitions. cyclomatic complexity: 12. Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 43 states and 61 transitions. Complement of second has 4 states. [2023-02-16 04:33:05,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:05,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:05,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-16 04:33:05,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 15 letters. Loop has 10 letters. [2023-02-16 04:33:05,949 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:05,950 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:05,985 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-16 04:33:05,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-16 04:33:06,023 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2023-02-16 04:33:06,024 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:06,092 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,099 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,105 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,106 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:06,114 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,114 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,118 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,118 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,127 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,127 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,127 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,127 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,128 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,128 WARN L278 uchiComplementFKVNwa]: big8 [2023-02-16 04:33:06,128 INFO L108 BuchiDifferenceFKV]: Finished buchiDifferenceFKV. First operand 26 states and 35 transitions. cyclomatic complexity: 12 Second operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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 719 states and 1229 transitions. Complement of second has 174 states 11 powerset states163 rank states. The highest rank that occured is 7 [2023-02-16 04:33:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 2.142857142857143) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-02-16 04:33:06,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 31 transitions. [2023-02-16 04:33:06,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 15 letters. Loop has 10 letters. [2023-02-16 04:33:06,129 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:06,129 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 25 letters. Loop has 10 letters. [2023-02-16 04:33:06,130 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:06,130 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 31 transitions. Stem has 15 letters. Loop has 20 letters. [2023-02-16 04:33:06,131 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:06,131 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 719 states and 1229 transitions. [2023-02-16 04:33:06,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2023-02-16 04:33:06,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 719 states to 450 states and 747 transitions. [2023-02-16 04:33:06,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-02-16 04:33:06,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2023-02-16 04:33:06,140 INFO L73 IsDeterministic]: Start isDeterministic. Operand 450 states and 747 transitions. [2023-02-16 04:33:06,140 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:06,140 INFO L218 hiAutomatonCegarLoop]: Abstraction has 450 states and 747 transitions. [2023-02-16 04:33:06,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states and 747 transitions. [2023-02-16 04:33:06,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 157. [2023-02-16 04:33:06,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 157 states have (on average 1.78343949044586) internal successors, (280), 156 states have internal predecessors, (280), 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) [2023-02-16 04:33:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 280 transitions. [2023-02-16 04:33:06,152 INFO L240 hiAutomatonCegarLoop]: Abstraction has 157 states and 280 transitions. [2023-02-16 04:33:06,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:33:06,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-16 04:33:06,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-02-16 04:33:06,152 INFO L87 Difference]: Start difference. First operand 157 states and 280 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2023-02-16 04:33:06,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:33:06,161 INFO L93 Difference]: Finished difference Result 189 states and 305 transitions. [2023-02-16 04:33:06,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 305 transitions. [2023-02-16 04:33:06,162 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 52 [2023-02-16 04:33:06,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 174 states and 280 transitions. [2023-02-16 04:33:06,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2023-02-16 04:33:06,163 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 25 [2023-02-16 04:33:06,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 174 states and 280 transitions. [2023-02-16 04:33:06,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:06,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 174 states and 280 transitions. [2023-02-16 04:33:06,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states and 280 transitions. [2023-02-16 04:33:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 151. [2023-02-16 04:33:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 151 states have (on average 1.6754966887417218) internal successors, (253), 150 states have internal predecessors, (253), 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) [2023-02-16 04:33:06,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 253 transitions. [2023-02-16 04:33:06,175 INFO L240 hiAutomatonCegarLoop]: Abstraction has 151 states and 253 transitions. [2023-02-16 04:33:06,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-16 04:33:06,175 INFO L428 stractBuchiCegarLoop]: Abstraction has 151 states and 253 transitions. [2023-02-16 04:33:06,175 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-16 04:33:06,175 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 151 states and 253 transitions. [2023-02-16 04:33:06,176 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2023-02-16 04:33:06,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:06,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:06,177 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 2, 1, 1, 1] [2023-02-16 04:33:06,177 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 3, 3] [2023-02-16 04:33:06,177 INFO L748 eck$LassoCheckResult]: Stem: 2821#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 2822#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~x~0#1, main_~c~0#1;havoc main_~x~0#1;havoc main_~c~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~c~0#1 := 1; 2883#L12-2 assume !!(main_~c~0#1 > 0); 2884#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2881#L12-2 assume !!(main_~c~0#1 > 0); 2876#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2873#L12-2 assume !!(main_~c~0#1 > 0); 2832#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2833#L12-2 assume !!(main_~c~0#1 > 0); 2904#L12 [2023-02-16 04:33:06,177 INFO L750 eck$LassoCheckResult]: Loop: 2904#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2903#L12-2 assume !!(main_~c~0#1 > 0); 2902#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2900#L12-2 assume !!(main_~c~0#1 > 0); 2850#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2908#L12-2 assume !!(main_~c~0#1 > 0); 2847#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2836#L12-2 assume !!(main_~c~0#1 > 0); 2905#L12 assume main_~x~0#1 > 100;main_~x~0#1 := main_~x~0#1 - 10;main_~c~0#1 := main_~c~0#1 - 1; 2840#L12-2 assume !!(main_~c~0#1 > 0); 2841#L12 assume !(main_~x~0#1 > 100);main_~x~0#1 := 11 + main_~x~0#1;main_~c~0#1 := 1 + main_~c~0#1; 2830#L12-2 assume !!(main_~c~0#1 > 0); 2904#L12 [2023-02-16 04:33:06,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash 635458587, now seen corresponding path program 10 times [2023-02-16 04:33:06,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:06,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629241637] [2023-02-16 04:33:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:06,180 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:06,182 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:06,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1074943081, now seen corresponding path program 4 times [2023-02-16 04:33:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:06,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951830009] [2023-02-16 04:33:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:06,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:06,200 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-16 04:33:06,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:33:06,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951830009] [2023-02-16 04:33:06,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951830009] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:33:06,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:33:06,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-16 04:33:06,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047609708] [2023-02-16 04:33:06,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:33:06,201 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:33:06,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:33:06,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-16 04:33:06,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-16 04:33:06,201 INFO L87 Difference]: Start difference. First operand 151 states and 253 transitions. cyclomatic complexity: 115 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2023-02-16 04:33:06,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:33:06,206 INFO L93 Difference]: Finished difference Result 136 states and 207 transitions. [2023-02-16 04:33:06,206 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 207 transitions. [2023-02-16 04:33:06,207 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:33:06,207 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 0 states and 0 transitions. [2023-02-16 04:33:06,207 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-16 04:33:06,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-16 04:33:06,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-16 04:33:06,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:33:06,207 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:06,207 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:06,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-16 04:33:06,208 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:06,208 INFO L335 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2023-02-16 04:33:06,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:33:06,208 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:33:06,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-16 04:33:06,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.02 04:33:06 BoogieIcfgContainer [2023-02-16 04:33:06,213 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-16 04:33:06,213 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:33:06,213 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:33:06,213 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:33:06,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:33:01" (3/4) ... [2023-02-16 04:33:06,215 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:33:06,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:33:06,215 INFO L158 Benchmark]: Toolchain (without parser) took 4641.81ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 106.4MB in the beginning and 112.0MB in the end (delta: -5.6MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 114.11ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 97.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.63ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 96.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: Boogie Preprocessor took 10.61ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.0MB in the end (delta: 956.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: RCFGBuilder took 180.68ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 86.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: BuchiAutomizer took 4310.44ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 86.6MB in the beginning and 112.0MB in the end (delta: -25.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2023-02-16 04:33:06,216 INFO L158 Benchmark]: Witness Printer took 2.12ms. Allocated memory is still 172.0MB. Free memory is still 112.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:06,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 104.9MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 114.11ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 97.7MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 17.63ms. Allocated memory is still 142.6MB. Free memory was 97.1MB in the beginning and 96.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 10.61ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 95.0MB in the end (delta: 956.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 180.68ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 86.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4310.44ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 86.6MB in the beginning and 112.0MB in the end (delta: -25.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 2.12ms. Allocated memory is still 172.0MB. Free memory is still 112.0MB. 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 11 terminating modules (4 trivial, 3 deterministic, 4 nondeterministic). One deterministic module has affine ranking function -2 * x + 211 and consists of 4 locations. One deterministic module has affine ranking function -2 * x + 211 and consists of 3 locations. One deterministic module has affine ranking function -2 * x + 201 and consists of 4 locations. One nondeterministic module has affine ranking function -2 * x + 211 and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 221 and consists of 4 locations. One nondeterministic module has affine ranking function c and consists of 8 locations. 4 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 9 iterations. TraceHistogramMax:7. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 7. Minimization of det autom 1. Minimization of nondet autom 10. Automata minimization 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 337 StatesRemovedByMinimization, 8 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, 1, 3, 0, 1]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 20/24 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 80 mSDsluCounter, 134 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 104 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT4 conc0 concLT2 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax161 hnf100 lsp38 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg95 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 7 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-16 04:33:06,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:06,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE