./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3dbbec33 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-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.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 da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:41:54,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:41:54,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:41:54,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:41:54,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:41:54,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:41:54,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:41:54,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:41:54,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:41:54,757 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:41:54,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:41:54,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:41:54,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:41:54,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:41:54,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:41:54,766 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:41:54,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:41:54,768 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:41:54,769 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:41:54,774 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:41:54,775 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:41:54,776 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:41:54,777 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:41:54,778 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:41:54,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:41:54,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:41:54,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:41:54,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:41:54,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:41:54,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:41:54,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:41:54,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:41:54,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:41:54,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:41:54,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:41:54,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:41:54,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:41:54,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:41:54,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:41:54,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:41:54,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:41:54,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 14:41:54,851 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:41:54,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:41:54,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:41:54,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:41:54,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:41:54,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:41:54,854 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:41:54,854 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 14:41:54,854 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 14:41:54,855 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 14:41:54,855 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 14:41:54,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 14:41:54,856 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 14:41:54,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:41:54,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:41:54,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:41:54,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:41:54,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 14:41:54,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 14:41:54,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 14:41:54,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:41:54,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 14:41:54,858 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:41:54,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 14:41:54,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:41:54,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:41:54,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:41:54,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:41:54,861 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 14:41:54,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f [2023-02-14 14:41:55,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:41:55,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:41:55,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:41:55,141 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:41:55,141 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:41:55,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2023-02-14 14:41:56,281 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:41:56,476 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:41:56,477 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2023-02-14 14:41:56,483 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/934b24307/29cec6a1b2c54f25935e87dfdd399acf/FLAG84e761844 [2023-02-14 14:41:56,501 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/934b24307/29cec6a1b2c54f25935e87dfdd399acf [2023-02-14 14:41:56,503 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:41:56,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:41:56,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:56,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:41:56,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:41:56,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@952056b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56, skipping insertion in model container [2023-02-14 14:41:56,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:41:56,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:41:56,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:56,658 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:41:56,668 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:41:56,681 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:41:56,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56 WrapperNode [2023-02-14 14:41:56,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:41:56,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:56,683 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:41:56,683 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:41:56,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,692 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,706 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-14 14:41:56,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:41:56,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:41:56,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:41:56,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:41:56,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,721 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:41:56,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:41:56,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:41:56,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:41:56,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (1/1) ... [2023-02-14 14:41:56,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:56,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:56,750 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) [2023-02-14 14:41:56,753 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 [2023-02-14 14:41:56,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:41:56,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:41:56,843 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:41:56,845 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:41:56,898 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:41:56,903 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:41:56,904 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 14:41:56,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:56 BoogieIcfgContainer [2023-02-14 14:41:56,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:41:56,906 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 14:41:56,906 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 14:41:56,909 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 14:41:56,909 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:56,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 02:41:56" (1/3) ... [2023-02-14 14:41:56,910 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b9e0607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:56, skipping insertion in model container [2023-02-14 14:41:56,910 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:56,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:41:56" (2/3) ... [2023-02-14 14:41:56,911 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b9e0607 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 02:41:56, skipping insertion in model container [2023-02-14 14:41:56,911 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 14:41:56,911 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:56" (3/3) ... [2023-02-14 14:41:56,912 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2023-02-14 14:41:56,991 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 14:41:56,992 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 14:41:56,992 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 14:41:56,992 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 14:41:56,992 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 14:41:56,992 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 14:41:56,992 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 14:41:56,992 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 14:41:57,006 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) [2023-02-14 14:41:57,020 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 14:41:57,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:57,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:57,025 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:57,025 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 14:41:57,025 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 14:41:57,025 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) [2023-02-14 14:41:57,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 14:41:57,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:57,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:57,027 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:57,027 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 14:41:57,034 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L21-2true [2023-02-14 14:41:57,034 INFO L750 eck$LassoCheckResult]: Loop: 7#L21-2true assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 4#L21true assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 7#L21-2true [2023-02-14 14:41:57,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:57,045 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 14:41:57,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:57,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237982381] [2023-02-14 14:41:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:57,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:57,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:57,135 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:57,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:57,158 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:57,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:57,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-14 14:41:57,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:57,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400712526] [2023-02-14 14:41:57,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:57,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:57,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:57,188 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:57,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:57,202 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:57,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:57,203 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-14 14:41:57,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:57,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159272536] [2023-02-14 14:41:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:57,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:57,229 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:57,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:57,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:57,391 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:57,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:57,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:57,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:57,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:57,392 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,392 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:57,393 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:57,393 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2023-02-14 14:41:57,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:57,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:57,408 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,453 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,460 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,490 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:57,627 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:57,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:57,641 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) [2023-02-14 14:41:57,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:57,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:57,653 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 [2023-02-14 14:41:57,681 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:57,681 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:57,688 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 [2023-02-14 14:41:57,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:57,690 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) [2023-02-14 14:41:57,692 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 [2023-02-14 14:41:57,697 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:57,697 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:57,725 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:57,725 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:57,731 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-14 14:41:57,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:57,777 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) [2023-02-14 14:41:57,781 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 [2023-02-14 14:41:57,782 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:57,782 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:57,799 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:57,799 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:57,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:57,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:57,809 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) [2023-02-14 14:41:57,810 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 [2023-02-14 14:41:57,813 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:57,813 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:57,825 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 [2023-02-14 14:41:57,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:57,827 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) [2023-02-14 14:41:57,829 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 [2023-02-14 14:41:57,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:57,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:57,856 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:57,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-14 14:41:57,862 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:57,862 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:57,862 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:57,862 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:57,863 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:57,863 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,863 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:57,863 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:57,863 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2023-02-14 14:41:57,863 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:57,863 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:57,865 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,873 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,879 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,890 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,901 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:57,970 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:57,974 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:57,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:57,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:57,977 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) [2023-02-14 14:41:57,989 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 [2023-02-14 14:41:57,997 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 [2023-02-14 14:41:58,000 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,001 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,001 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,001 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,007 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:58,007 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:58,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:58,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2023-02-14 14:41:58,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,028 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) [2023-02-14 14:41:58,031 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 [2023-02-14 14:41:58,041 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 [2023-02-14 14:41:58,050 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,050 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,050 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,050 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,054 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:58,055 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:58,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:58,077 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 [2023-02-14 14:41:58,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,079 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) [2023-02-14 14:41:58,092 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 [2023-02-14 14:41:58,100 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,100 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:58,101 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,101 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,101 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,102 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:58,102 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:58,105 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 [2023-02-14 14:41:58,115 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:58,119 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 [2023-02-14 14:41:58,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,123 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) [2023-02-14 14:41:58,124 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 [2023-02-14 14:41:58,126 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 [2023-02-14 14:41:58,133 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,133 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:58,133 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,133 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,133 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:58,135 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:58,141 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:58,145 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:41:58,146 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:41:58,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,153 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) [2023-02-14 14:41:58,161 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 [2023-02-14 14:41:58,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:58,162 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:58,162 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:58,162 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2023-02-14 14:41:58,168 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 [2023-02-14 14:41:58,171 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:58,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:58,205 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:58,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:58,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:58,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:58,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:58,261 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 [2023-02-14 14:41:58,262 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) [2023-02-14 14:41:58,297 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 8 states. [2023-02-14 14:41:58,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-14 14:41:58,303 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) [2023-02-14 14:41:58,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-14 14:41:58,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-14 14:41:58,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:58,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-14 14:41:58,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:58,305 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-14 14:41:58,305 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:58,306 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2023-02-14 14:41:58,308 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 14:41:58,310 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2023-02-14 14:41:58,310 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-14 14:41:58,311 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-14 14:41:58,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-14 14:41:58,311 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:58,311 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 14:41:58,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-14 14:41:58,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-14 14:41:58,327 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) [2023-02-14 14:41:58,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-14 14:41:58,335 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 14:41:58,335 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 14:41:58,338 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 [2023-02-14 14:41:58,338 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 14:41:58,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-14 14:41:58,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 14:41:58,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:58,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:58,341 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-14 14:41:58,341 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 14:41:58,342 INFO L748 eck$LassoCheckResult]: Stem: 75#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 76#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 78#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 71#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 72#L21-2 [2023-02-14 14:41:58,342 INFO L750 eck$LassoCheckResult]: Loop: 72#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 77#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 72#L21-2 [2023-02-14 14:41:58,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:58,342 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-14 14:41:58,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:58,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930403354] [2023-02-14 14:41:58,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:58,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:58,348 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:58,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:58,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:58,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:58,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-02-14 14:41:58,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:58,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79132638] [2023-02-14 14:41:58,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:58,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:58,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:58,357 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:58,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:58,361 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:58,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:58,362 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-02-14 14:41:58,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:58,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851691151] [2023-02-14 14:41:58,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:58,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:58,378 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:58,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:58,425 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:58,425 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:58,425 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:58,425 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:58,425 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:58,425 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,425 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:58,426 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:58,426 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2023-02-14 14:41:58,426 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:58,426 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:58,427 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,433 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,447 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,511 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:58,511 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:58,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,518 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) [2023-02-14 14:41:58,529 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 [2023-02-14 14:41:58,530 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:58,530 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:58,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:58,549 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: [] [2023-02-14 14:41:58,555 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 [2023-02-14 14:41:58,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,557 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) [2023-02-14 14:41:58,560 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 [2023-02-14 14:41:58,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:58,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:58,593 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:58,593 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:58,600 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 [2023-02-14 14:41:58,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,601 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) [2023-02-14 14:41:58,604 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 [2023-02-14 14:41:58,606 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:58,606 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:58,629 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:58,630 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: [] [2023-02-14 14:41:58,636 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 [2023-02-14 14:41:58,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,637 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) [2023-02-14 14:41:58,645 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 [2023-02-14 14:41:58,645 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:58,646 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:58,673 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:58,673 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:58,680 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 [2023-02-14 14:41:58,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,681 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) [2023-02-14 14:41:58,684 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 [2023-02-14 14:41:58,686 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:58,686 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:58,713 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 [2023-02-14 14:41:58,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,715 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 14:41:58,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-14 14:41:58,722 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:58,722 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:58,749 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:58,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:58,756 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:58,756 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:58,756 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:58,757 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:58,757 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:58,757 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,757 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:58,757 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:58,757 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2023-02-14 14:41:58,757 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:58,757 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:58,758 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,763 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,771 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,775 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,784 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:58,851 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:58,851 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:58,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,853 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) [2023-02-14 14:41:58,865 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 [2023-02-14 14:41:58,873 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:58,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:58,875 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:58,876 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 [2023-02-14 14:41:58,893 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:58,900 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 [2023-02-14 14:41:58,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,902 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) [2023-02-14 14:41:58,906 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 [2023-02-14 14:41:58,908 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 [2023-02-14 14:41:58,916 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,916 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,916 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,916 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,921 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:58,921 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:58,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:58,941 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 [2023-02-14 14:41:58,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,942 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) [2023-02-14 14:41:58,945 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 [2023-02-14 14:41:58,947 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 [2023-02-14 14:41:58,954 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,954 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:58,954 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,954 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,954 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,955 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:58,955 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:58,966 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:58,973 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 [2023-02-14 14:41:58,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:58,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:58,975 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) [2023-02-14 14:41:58,983 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 [2023-02-14 14:41:58,983 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 [2023-02-14 14:41:58,990 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:58,990 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:58,990 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:58,990 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:58,993 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:58,993 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:59,008 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:59,017 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 [2023-02-14 14:41:59,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,018 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) [2023-02-14 14:41:59,025 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 [2023-02-14 14:41:59,034 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:59,034 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:59,034 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:59,034 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:59,034 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:59,035 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:59,035 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:59,037 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 [2023-02-14 14:41:59,052 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:59,055 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-14 14:41:59,055 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:59,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,057 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) [2023-02-14 14:41:59,073 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 [2023-02-14 14:41:59,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:59,110 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:59,110 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:59,110 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2023-02-14 14:41:59,117 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 [2023-02-14 14:41:59,118 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:59,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:59,172 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 [2023-02-14 14:41:59,173 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) [2023-02-14 14:41:59,182 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. [2023-02-14 14:41:59,182 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 [2023-02-14 14:41:59,183 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) [2023-02-14 14:41:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-14 14:41:59,183 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-14 14:41:59,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-14 14:41:59,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,184 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-14 14:41:59,184 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,184 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-02-14 14:41:59,185 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 14:41:59,185 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-02-14 14:41:59,186 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-14 14:41:59,186 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 14:41:59,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-14 14:41:59,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:59,186 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-14 14:41:59,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-14 14:41:59,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-14 14:41:59,187 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) [2023-02-14 14:41:59,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-02-14 14:41:59,187 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-14 14:41:59,188 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-14 14:41:59,188 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 14:41:59,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2023-02-14 14:41:59,188 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 14:41:59,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:59,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:59,189 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2023-02-14 14:41:59,189 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 14:41:59,189 INFO L748 eck$LassoCheckResult]: Stem: 133#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 134#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 137#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 129#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 130#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 138#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 135#L21-2 [2023-02-14 14:41:59,189 INFO L750 eck$LassoCheckResult]: Loop: 135#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 136#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 135#L21-2 [2023-02-14 14:41:59,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,189 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2023-02-14 14:41:59,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:59,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132516869] [2023-02-14 14:41:59,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:59,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,207 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:59,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-02-14 14:41:59,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:59,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344386318] [2023-02-14 14:41:59,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:59,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:59,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,232 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:59,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,233 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2023-02-14 14:41:59,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:59,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209629418] [2023-02-14 14:41:59,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:59,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,246 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:59,294 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:59,294 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:59,294 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:59,294 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:59,294 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:59,294 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,294 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:59,295 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:59,295 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2023-02-14 14:41:59,295 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:59,295 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:59,296 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,302 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,305 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,308 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,314 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,316 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:59,383 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:59,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,385 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) [2023-02-14 14:41:59,387 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 [2023-02-14 14:41:59,388 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:59,388 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:59,401 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:59,402 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Honda state: {ULTIMATE.start_main_~x~0#1=5, ULTIMATE.start_main_#t~nondet5#1=5} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:59,405 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 [2023-02-14 14:41:59,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,406 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) [2023-02-14 14:41:59,408 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 [2023-02-14 14:41:59,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:59,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:59,437 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:59,437 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: [] [2023-02-14 14:41:59,444 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 [2023-02-14 14:41:59,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,450 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) [2023-02-14 14:41:59,453 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 [2023-02-14 14:41:59,454 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:59,454 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:59,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:41:59,472 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=0} Honda state: {ULTIMATE.start_main_#t~nondet3#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:41:59,479 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 [2023-02-14 14:41:59,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,481 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) [2023-02-14 14:41:59,484 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:41:59,485 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:59,484 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 [2023-02-14 14:41:59,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2023-02-14 14:41:59,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,495 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) [2023-02-14 14:41:59,500 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 [2023-02-14 14:41:59,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:41:59,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:41:59,521 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:41:59,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:59,525 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:59,525 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:59,525 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:59,525 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:59,525 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:41:59,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:59,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:59,525 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2023-02-14 14:41:59,525 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:59,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:59,527 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,531 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,537 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,547 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,599 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:59,599 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:41:59,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,601 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) [2023-02-14 14:41:59,602 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 [2023-02-14 14:41:59,604 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 [2023-02-14 14:41:59,610 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:59,610 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:59,610 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:59,610 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:59,610 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:59,611 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:59,611 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:59,612 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:59,615 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 [2023-02-14 14:41:59,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,617 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) [2023-02-14 14:41:59,618 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 [2023-02-14 14:41:59,620 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 [2023-02-14 14:41:59,626 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:59,626 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:59,626 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:59,626 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:59,626 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:59,627 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:59,627 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:59,635 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:59,638 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-14 14:41:59,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,640 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) [2023-02-14 14:41:59,641 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 [2023-02-14 14:41:59,643 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 [2023-02-14 14:41:59,648 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:59,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:59,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:59,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:59,653 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:41:59,653 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:41:59,670 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:41:59,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-14 14:41:59,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,674 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) [2023-02-14 14:41:59,676 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 [2023-02-14 14:41:59,678 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 [2023-02-14 14:41:59,683 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:41:59,684 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:41:59,684 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:41:59,684 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:41:59,684 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:41:59,684 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:41:59,685 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:41:59,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:41:59,687 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-14 14:41:59,687 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:41:59,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,690 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) [2023-02-14 14:41:59,690 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 [2023-02-14 14:41:59,691 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:41:59,691 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:41:59,691 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:41:59,691 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0#1) = 1*ULTIMATE.start_main_~d~0#1 Supporting invariants [] [2023-02-14 14:41:59,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:59,695 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:41:59,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-02-14 14:41:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,753 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 [2023-02-14 14:41:59,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:59,764 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 [2023-02-14 14:41:59,764 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:59,774 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2023-02-14 14:41:59,774 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 [2023-02-14 14:41:59,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-14 14:41:59,775 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-14 14:41:59,775 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,775 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:59,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:59,812 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 [2023-02-14 14:41:59,812 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:59,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 21 transitions. Complement of second has 5 states. [2023-02-14 14:41:59,820 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 [2023-02-14 14:41:59,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:59,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-14 14:41:59,821 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-14 14:41:59,821 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,821 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:41:59,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:41:59,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:41:59,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:41:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:41:59,856 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 [2023-02-14 14:41:59,856 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:59,864 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 17 transitions. cyclomatic complexity: 8. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 24 transitions. Complement of second has 4 states. [2023-02-14 14:41:59,864 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 [2023-02-14 14:41:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:41:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-14 14:41:59,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-14 14:41:59,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-14 14:41:59,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-14 14:41:59,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:41:59,866 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2023-02-14 14:41:59,867 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:59,867 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2023-02-14 14:41:59,867 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-14 14:41:59,867 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-14 14:41:59,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2023-02-14 14:41:59,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:41:59,868 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2023-02-14 14:41:59,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2023-02-14 14:41:59,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2023-02-14 14:41:59,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 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) [2023-02-14 14:41:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-02-14 14:41:59,869 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-14 14:41:59,869 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-14 14:41:59,869 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 14:41:59,869 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-02-14 14:41:59,869 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:41:59,869 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:41:59,869 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:41:59,870 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 14:41:59,870 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 14:41:59,870 INFO L748 eck$LassoCheckResult]: Stem: 290#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 291#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 287#L21-2 [2023-02-14 14:41:59,870 INFO L750 eck$LassoCheckResult]: Loop: 287#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 286#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 287#L21-2 [2023-02-14 14:41:59,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,870 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-14 14:41:59,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:59,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851404484] [2023-02-14 14:41:59,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:59,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:59,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,873 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,875 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:59,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,875 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2023-02-14 14:41:59,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:59,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679326703] [2023-02-14 14:41:59,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:59,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,883 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:59,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:41:59,883 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2023-02-14 14:41:59,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:41:59,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283325203] [2023-02-14 14:41:59,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:41:59,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:41:59,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,888 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:41:59,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:41:59,890 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:41:59,923 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:41:59,923 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:41:59,923 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:41:59,923 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:41:59,923 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:41:59,923 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,923 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:41:59,923 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:41:59,923 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2023-02-14 14:41:59,924 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:41:59,924 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:41:59,926 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,931 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,936 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,938 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:41:59,993 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:41:59,994 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:41:59,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:41:59,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:41:59,998 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) [2023-02-14 14:42:00,000 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 [2023-02-14 14:42:00,002 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:00,002 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:00,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:00,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,029 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) [2023-02-14 14:42:00,031 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 [2023-02-14 14:42:00,032 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:42:00,032 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:00,048 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:42:00,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:00,054 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:00,054 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:00,054 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:00,054 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:00,054 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:42:00,054 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,054 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:00,054 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:00,054 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2023-02-14 14:42:00,054 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:00,054 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:00,055 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,064 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,067 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,069 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,071 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,078 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,132 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:00,132 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:42:00,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,137 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) [2023-02-14 14:42:00,142 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 [2023-02-14 14:42:00,143 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 [2023-02-14 14:42:00,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:00,151 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:00,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:00,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:00,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:00,152 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:00,152 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:00,165 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:42:00,167 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-14 14:42:00,168 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-14 14:42:00,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,169 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) [2023-02-14 14:42:00,177 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:42:00,177 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:42:00,177 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:42:00,177 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 [] [2023-02-14 14:42:00,180 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 [2023-02-14 14:42:00,184 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 [2023-02-14 14:42:00,184 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:42:00,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,199 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:42:00,219 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 [2023-02-14 14:42:00,219 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3 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) [2023-02-14 14:42:00,229 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 3. 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 12 states and 18 transitions. Complement of second has 5 states. [2023-02-14 14:42:00,229 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 [2023-02-14 14:42:00,230 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) [2023-02-14 14:42:00,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-02-14 14:42:00,230 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-14 14:42:00,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-14 14:42:00,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,231 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-14 14:42:00,231 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,231 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2023-02-14 14:42:00,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:42:00,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 14 transitions. [2023-02-14 14:42:00,233 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-14 14:42:00,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-14 14:42:00,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-02-14 14:42:00,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:42:00,233 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-14 14:42:00,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-02-14 14:42:00,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-02-14 14:42:00,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 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) [2023-02-14 14:42:00,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2023-02-14 14:42:00,235 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-14 14:42:00,235 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-14 14:42:00,235 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 14:42:00,235 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2023-02-14 14:42:00,235 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 14:42:00,235 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:42:00,236 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:42:00,237 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-14 14:42:00,237 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 14:42:00,238 INFO L748 eck$LassoCheckResult]: Stem: 340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 342#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 343#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 344#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 336#L21 [2023-02-14 14:42:00,238 INFO L750 eck$LassoCheckResult]: Loop: 336#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 337#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 336#L21 [2023-02-14 14:42:00,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,238 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2023-02-14 14:42:00,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:00,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031742984] [2023-02-14 14:42:00,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:00,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,244 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:00,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-02-14 14:42:00,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:00,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760157830] [2023-02-14 14:42:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:00,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:00,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:00,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 3 times [2023-02-14 14:42:00,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:00,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105060189] [2023-02-14 14:42:00,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:00,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:00,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,266 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:00,292 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:00,292 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:00,292 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:00,292 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:00,292 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:42:00,292 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,292 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:00,292 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:00,293 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2023-02-14 14:42:00,293 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:00,293 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:00,294 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,296 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,299 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,303 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,306 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,309 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,356 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:00,356 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:42:00,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,361 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) [2023-02-14 14:42:00,364 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 [2023-02-14 14:42:00,365 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:00,365 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:00,387 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:42:00,387 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=1} Honda state: {ULTIMATE.start_main_~y~0#1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:42:00,394 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 [2023-02-14 14:42:00,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,395 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) [2023-02-14 14:42:00,403 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:00,403 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:00,417 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 [2023-02-14 14:42:00,425 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:42:00,425 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=4} Honda state: {ULTIMATE.start_main_#t~nondet3#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:42:00,429 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 [2023-02-14 14:42:00,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,431 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) [2023-02-14 14:42:00,434 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 [2023-02-14 14:42:00,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:00,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:00,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:00,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,446 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) [2023-02-14 14:42:00,447 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 [2023-02-14 14:42:00,449 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:42:00,449 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:00,490 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:42:00,494 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-02-14 14:42:00,494 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:00,494 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:00,494 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:00,494 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:00,494 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:42:00,494 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,494 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:00,494 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:00,494 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2023-02-14 14:42:00,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:00,495 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:00,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,510 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,513 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,516 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,518 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,566 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:00,566 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:42:00,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,568 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) [2023-02-14 14:42:00,574 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 [2023-02-14 14:42:00,574 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 [2023-02-14 14:42:00,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:00,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:00,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:00,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:00,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:00,580 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:00,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:00,589 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:42:00,592 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-14 14:42:00,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,593 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,594 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) [2023-02-14 14:42:00,597 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 [2023-02-14 14:42:00,598 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 [2023-02-14 14:42:00,604 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:00,604 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:00,604 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:00,604 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 14:42:00,604 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:00,605 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-14 14:42:00,605 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:00,614 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:42:00,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:00,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,619 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) [2023-02-14 14:42:00,629 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 [2023-02-14 14:42:00,637 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:00,637 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:00,637 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:00,637 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:00,639 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:42:00,639 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:42:00,642 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 [2023-02-14 14:42:00,656 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:42:00,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2023-02-14 14:42:00,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,660 INFO L229 MonitoredProcess]: Starting monitored process 45 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) [2023-02-14 14:42:00,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2023-02-14 14:42:00,663 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 [2023-02-14 14:42:00,669 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:00,669 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:00,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:00,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:00,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:00,670 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:00,670 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:00,672 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:42:00,673 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:42:00,674 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:42:00,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:00,675 INFO L229 MonitoredProcess]: Starting monitored process 46 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) [2023-02-14 14:42:00,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2023-02-14 14:42:00,685 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:42:00,685 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:42:00,685 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:42:00,685 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 [] [2023-02-14 14:42:00,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:00,689 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:42:00,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:42:00,753 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 [2023-02-14 14:42:00,754 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:00,766 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2023-02-14 14:42:00,766 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 [2023-02-14 14:42:00,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:00,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-14 14:42:00,767 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 14:42:00,768 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,768 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:42:00,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:42:00,802 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 [2023-02-14 14:42:00,802 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:00,819 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 11 states and 15 transitions. Complement of second has 5 states. [2023-02-14 14:42:00,819 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 [2023-02-14 14:42:00,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:00,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-14 14:42:00,820 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 14:42:00,820 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,820 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 14:42:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:00,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:42:00,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:00,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:42:00,860 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 [2023-02-14 14:42:00,861 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:00,875 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 14 states and 20 transitions. Complement of second has 4 states. [2023-02-14 14:42:00,875 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 [2023-02-14 14:42:00,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 14:42:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-14 14:42:00,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 14:42:00,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-14 14:42:00,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-14 14:42:00,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:00,877 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2023-02-14 14:42:00,878 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-14 14:42:00,878 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 17 transitions. [2023-02-14 14:42:00,878 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-14 14:42:00,878 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-14 14:42:00,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-14 14:42:00,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 14:42:00,878 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-14 14:42:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-14 14:42:00,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2023-02-14 14:42:00,880 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) [2023-02-14 14:42:00,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-14 14:42:00,880 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 14:42:00,880 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-14 14:42:00,880 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-14 14:42:00,881 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-14 14:42:00,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-14 14:42:00,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 14:42:00,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 14:42:00,881 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-14 14:42:00,881 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-02-14 14:42:00,881 INFO L748 eck$LassoCheckResult]: Stem: 476#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 477#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 478#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 479#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 480#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 473#L21 [2023-02-14 14:42:00,881 INFO L750 eck$LassoCheckResult]: Loop: 473#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 474#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 479#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 480#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 473#L21 [2023-02-14 14:42:00,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,882 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 3 times [2023-02-14 14:42:00,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:00,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058233676] [2023-02-14 14:42:00,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:00,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:00,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,897 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,900 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:00,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2023-02-14 14:42:00,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:00,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033130457] [2023-02-14 14:42:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:00,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:00,908 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 [2023-02-14 14:42:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,909 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,913 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:00,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:00,913 INFO L85 PathProgramCache]: Analyzing trace with hash 635399067, now seen corresponding path program 4 times [2023-02-14 14:42:00,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:42:00,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346375113] [2023-02-14 14:42:00,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:42:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:42:00,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,919 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 14:42:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 14:42:00,925 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 14:42:00,988 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:00,988 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:00,988 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:00,989 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:00,989 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 14:42:00,989 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:00,989 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:00,989 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:00,989 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2023-02-14 14:42:00,989 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:00,989 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:00,990 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,994 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:00,998 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,005 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,008 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,013 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,081 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:01,081 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 14:42:01,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,083 INFO L229 MonitoredProcess]: Starting monitored process 47 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) [2023-02-14 14:42:01,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2023-02-14 14:42:01,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:01,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:01,097 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:42:01,098 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3#1=4} Honda state: {ULTIMATE.start_main_#t~nondet3#1=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:42:01,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2023-02-14 14:42:01,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,101 INFO L229 MonitoredProcess]: Starting monitored process 48 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) [2023-02-14 14:42:01,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2023-02-14 14:42:01,105 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:01,105 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:01,116 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:42:01,116 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:42:01,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2023-02-14 14:42:01,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,120 INFO L229 MonitoredProcess]: Starting monitored process 49 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) [2023-02-14 14:42:01,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2023-02-14 14:42:01,123 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:01,124 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:01,134 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 14:42:01,135 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 14:42:01,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:01,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,139 INFO L229 MonitoredProcess]: Starting monitored process 50 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) [2023-02-14 14:42:01,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2023-02-14 14:42:01,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 14:42:01,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:01,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2023-02-14 14:42:01,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,155 INFO L229 MonitoredProcess]: Starting monitored process 51 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) [2023-02-14 14:42:01,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2023-02-14 14:42:01,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 14:42:01,157 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 14:42:01,228 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 14:42:01,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2023-02-14 14:42:01,231 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 14:42:01,231 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 14:42:01,232 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 14:42:01,232 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 14:42:01,232 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 14:42:01,232 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,232 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 14:42:01,232 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 14:42:01,232 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2023-02-14 14:42:01,232 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 14:42:01,232 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 14:42:01,233 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,243 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,246 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,250 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,254 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,258 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,260 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 14:42:01,317 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 14:42:01,317 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 14:42:01,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,319 INFO L229 MonitoredProcess]: Starting monitored process 52 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) [2023-02-14 14:42:01,331 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 [2023-02-14 14:42:01,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:01,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:01,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:01,338 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:01,341 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 14:42:01,341 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 14:42:01,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2023-02-14 14:42:01,357 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:42:01,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:01,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,362 INFO L229 MonitoredProcess]: Starting monitored process 53 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) [2023-02-14 14:42:01,369 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 [2023-02-14 14:42:01,377 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:01,377 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:01,377 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:01,377 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:01,377 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:01,378 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:01,378 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:01,380 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2023-02-14 14:42:01,392 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 14:42:01,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2023-02-14 14:42:01,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,398 INFO L229 MonitoredProcess]: Starting monitored process 54 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) [2023-02-14 14:42:01,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2023-02-14 14:42:01,401 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 [2023-02-14 14:42:01,409 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 14:42:01,409 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 14:42:01,409 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 14:42:01,409 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 14:42:01,409 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 14:42:01,410 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 14:42:01,410 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 14:42:01,424 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 14:42:01,430 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-14 14:42:01,430 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 14:42:01,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 14:42:01,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:42:01,433 INFO L229 MonitoredProcess]: Starting monitored process 55 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) [2023-02-14 14:42:01,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2023-02-14 14:42:01,437 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 14:42:01,437 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 14:42:01,438 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 14:42:01,438 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-14 14:42:01,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:01,442 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 14:42:01,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:42:01,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:01,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 14:42:01,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:42:01,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 14:42:01,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:42:01,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:42:01,484 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 [2023-02-14 14:42:01,484 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2023-02-14 14:42:01,503 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 4. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Result 22 states and 32 transitions. Complement of second has 6 states. [2023-02-14 14:42:01,503 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 [2023-02-14 14:42:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) [2023-02-14 14:42:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-14 14:42:01,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-14 14:42:01,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:01,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-14 14:42:01,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:01,504 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2023-02-14 14:42:01,504 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 14:42:01,505 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 32 transitions. [2023-02-14 14:42:01,505 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:42:01,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-02-14 14:42:01,505 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 14:42:01,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 14:42:01,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 14:42:01,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 14:42:01,506 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:42:01,506 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:42:01,506 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 14:42:01,506 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-14 14:42:01,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 14:42:01,506 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 14:42:01,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 14:42:01,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 02:42:01 BoogieIcfgContainer [2023-02-14 14:42:01,513 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 14:42:01,513 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 14:42:01,513 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 14:42:01,513 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 14:42:01,514 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:41:56" (3/4) ... [2023-02-14 14:42:01,516 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 14:42:01,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 14:42:01,517 INFO L158 Benchmark]: Toolchain (without parser) took 5011.70ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 70.4MB in the beginning and 80.0MB in the end (delta: -9.6MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-02-14 14:42:01,517 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 80.6MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:42:01,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.52ms. Allocated memory is still 113.2MB. Free memory was 70.1MB in the beginning and 61.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 14:42:01,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.00ms. Allocated memory is still 113.2MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:42:01,518 INFO L158 Benchmark]: Boogie Preprocessor took 15.82ms. Allocated memory is still 113.2MB. Free memory was 59.6MB in the beginning and 58.8MB in the end (delta: 779.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 14:42:01,518 INFO L158 Benchmark]: RCFGBuilder took 181.36ms. Allocated memory is still 113.2MB. Free memory was 58.8MB in the beginning and 50.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 14:42:01,518 INFO L158 Benchmark]: BuchiAutomizer took 4606.76ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 50.4MB in the beginning and 80.0MB in the end (delta: -29.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2023-02-14 14:42:01,519 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 148.9MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 14:42:01,520 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 113.2MB. Free memory was 80.7MB in the beginning and 80.6MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.52ms. Allocated memory is still 113.2MB. Free memory was 70.1MB in the beginning and 61.2MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.00ms. Allocated memory is still 113.2MB. Free memory was 61.2MB in the beginning and 59.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.82ms. Allocated memory is still 113.2MB. Free memory was 59.6MB in the beginning and 58.8MB in the end (delta: 779.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 181.36ms. Allocated memory is still 113.2MB. Free memory was 58.8MB in the beginning and 50.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4606.76ms. Allocated memory was 113.2MB in the beginning and 148.9MB in the end (delta: 35.7MB). Free memory was 50.4MB in the beginning and 80.0MB in the end (delta: -29.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 148.9MB. Free memory is still 80.0MB. 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 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function d and consists of 5 locations. One deterministic module has affine ranking function d and consists of 3 locations. One deterministic module has affine ranking function x and consists of 3 locations. One deterministic module has affine ranking function y and consists of 4 locations. One nondeterministic module has affine ranking function d and consists of 3 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 3.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 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 [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 2/2 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 59 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 51 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital26 mio100 ax145 hnf100 lsp26 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf113 neg100 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 47ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 14:42:01,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2023-02-14 14:42:01,733 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