./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 26d01a9c 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-?-26d01a9 [2023-02-18 08:54:42,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:54:42,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:54:42,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:54:42,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:54:42,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:54:42,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:54:42,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:54:42,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:54:42,876 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:54:42,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:54:42,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:54:42,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:54:42,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:54:42,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:54:42,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:54:42,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:54:42,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:54:42,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:54:42,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:54:42,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:54:42,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:54:42,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:54:42,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:54:42,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:54:42,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:54:42,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:54:42,903 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:54:42,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:54:42,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:54:42,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:54:42,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:54:42,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:54:42,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:54:42,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:54:42,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:54:42,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:54:42,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:54:42,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:54:42,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:54:42,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:54:42,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 08:54:42,930 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:54:42,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:54:42,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:54:42,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:54:42,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:54:42,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:54:42,933 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:54:42,933 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 08:54:42,933 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 08:54:42,933 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 08:54:42,934 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 08:54:42,934 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 08:54:42,934 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 08:54:42,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:54:42,935 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:54:42,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:54:42,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:54:42,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 08:54:42,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 08:54:42,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 08:54:42,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:54:42,937 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 08:54:42,937 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:54:42,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 08:54:42,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:54:42,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:54:42,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:54:42,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:54:42,939 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 08:54:42,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da22ffb72429307957b6c0c7dbecd683a89e13ab06c6f4d1911b51bf365e4d9f [2023-02-18 08:54:43,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:54:43,198 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:54:43,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:54:43,202 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:54:43,204 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:54:43,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2023-02-18 08:54:44,360 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:54:44,560 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:54:44,561 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2023-02-18 08:54:44,566 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0cc193d1/9c69ead89c1d454dada8b1fccdbe0ce3/FLAG26b63a07c [2023-02-18 08:54:44,581 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0cc193d1/9c69ead89c1d454dada8b1fccdbe0ce3 [2023-02-18 08:54:44,584 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:54:44,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:54:44,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:54:44,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:54:44,593 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:54:44,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b5c1f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44, skipping insertion in model container [2023-02-18 08:54:44,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:54:44,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:54:44,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:54:44,771 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:54:44,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:54:44,793 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:54:44,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44 WrapperNode [2023-02-18 08:54:44,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:54:44,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:54:44,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:54:44,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:54:44,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,806 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,820 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2023-02-18 08:54:44,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:54:44,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:54:44,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:54:44,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:54:44,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:54:44,837 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:54:44,837 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:54:44,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:54:44,838 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (1/1) ... [2023-02-18 08:54:44,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:44,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:44,863 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) [2023-02-18 08:54:44,867 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 [2023-02-18 08:54:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:54:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:54:44,953 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:54:44,955 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:54:45,018 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:54:45,022 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:54:45,023 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:54:45,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:54:45 BoogieIcfgContainer [2023-02-18 08:54:45,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:54:45,041 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 08:54:45,041 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 08:54:45,044 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 08:54:45,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:54:45,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 08:54:44" (1/3) ... [2023-02-18 08:54:45,046 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@310b247b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:54:45, skipping insertion in model container [2023-02-18 08:54:45,046 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:54:45,046 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:54:44" (2/3) ... [2023-02-18 08:54:45,047 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@310b247b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:54:45, skipping insertion in model container [2023-02-18 08:54:45,047 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:54:45,047 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:54:45" (3/3) ... [2023-02-18 08:54:45,048 INFO L332 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2023-02-18 08:54:45,098 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 08:54:45,098 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 08:54:45,099 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 08:54:45,099 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 08:54:45,099 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 08:54:45,099 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 08:54:45,099 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 08:54:45,099 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 08:54:45,103 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) [2023-02-18 08:54:45,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:54:45,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:45,118 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:45,122 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:54:45,122 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:54:45,122 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 08:54:45,122 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) [2023-02-18 08:54:45,123 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:54:45,123 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:45,123 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:45,123 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:54:45,123 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:54:45,132 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L21-2true [2023-02-18 08:54:45,132 INFO L750 eck$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 [2023-02-18 08:54:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:45,137 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-18 08:54:45,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:45,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934795599] [2023-02-18 08:54:45,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:45,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:45,222 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:45,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:45,237 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:45,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:45,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2023-02-18 08:54:45,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:45,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731183899] [2023-02-18 08:54:45,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:45,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:45,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:45,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:45,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:45,258 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:45,271 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2023-02-18 08:54:45,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:45,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556848568] [2023-02-18 08:54:45,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:45,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:45,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:45,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:45,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:45,292 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:45,346 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:45,346 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:45,347 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:45,347 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:45,347 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:45,347 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,347 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:45,347 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:45,347 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2023-02-18 08:54:45,347 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:45,348 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:45,373 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,384 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,386 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,389 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,392 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,415 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:45,416 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:45,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,419 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) [2023-02-18 08:54:45,420 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 [2023-02-18 08:54:45,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:45,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:45,441 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:45,441 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: [] [2023-02-18 08:54:45,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-18 08:54:45,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,459 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) [2023-02-18 08:54:45,480 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:45,480 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:45,498 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 [2023-02-18 08:54:45,513 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:45,513 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: [] [2023-02-18 08:54:45,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:45,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,534 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) [2023-02-18 08:54:45,561 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 [2023-02-18 08:54:45,562 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:45,562 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:45,587 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:45,587 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: [] [2023-02-18 08:54:45,595 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 [2023-02-18 08:54:45,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,597 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) [2023-02-18 08:54:45,599 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 [2023-02-18 08:54:45,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:45,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:45,616 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 [2023-02-18 08:54:45,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,618 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) [2023-02-18 08:54:45,638 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 [2023-02-18 08:54:45,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:45,644 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:45,666 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:45,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:45,671 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:45,671 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:45,671 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:45,671 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:45,671 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:45,671 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,671 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:45,671 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:45,671 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration1_Loop [2023-02-18 08:54:45,671 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:45,672 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:45,674 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,676 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,678 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,681 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,682 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:45,692 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:45,698 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:45,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,701 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) [2023-02-18 08:54:45,712 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 [2023-02-18 08:54:45,719 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 [2023-02-18 08:54:45,722 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:45,722 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:45,722 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:45,722 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:45,726 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:45,726 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:45,743 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:45,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:45,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,752 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) [2023-02-18 08:54:45,757 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 [2023-02-18 08:54:45,783 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 [2023-02-18 08:54:45,792 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:45,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:45,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:45,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:45,799 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:45,799 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:45,821 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:45,825 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 [2023-02-18 08:54:45,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,828 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) [2023-02-18 08:54:45,841 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 [2023-02-18 08:54:45,867 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 [2023-02-18 08:54:45,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:45,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:45,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:45,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:45,875 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:45,875 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:45,876 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:45,879 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:45,887 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 [2023-02-18 08:54:45,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,893 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) [2023-02-18 08:54:45,900 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 [2023-02-18 08:54:45,901 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 [2023-02-18 08:54:45,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:45,909 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:45,909 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:45,909 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:45,909 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:45,910 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:45,910 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:45,919 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:45,922 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:45,922 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:45,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:45,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:45,966 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) [2023-02-18 08:54:45,968 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 [2023-02-18 08:54:45,969 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:45,969 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:45,969 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:45,970 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 [] [2023-02-18 08:54:45,976 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 [2023-02-18 08:54:45,978 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:46,026 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:46,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:46,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:46,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:46,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:46,097 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 [2023-02-18 08:54:46,098 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) [2023-02-18 08:54:46,143 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. [2023-02-18 08:54:46,145 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 [2023-02-18 08:54:46,153 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) [2023-02-18 08:54:46,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2023-02-18 08:54:46,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-18 08:54:46,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:46,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-18 08:54:46,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:46,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 12 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-18 08:54:46,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:46,158 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2023-02-18 08:54:46,163 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:54:46,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 8 states and 11 transitions. [2023-02-18 08:54:46,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-18 08:54:46,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-18 08:54:46,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-18 08:54:46,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:46,167 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-18 08:54:46,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-18 08:54:46,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-18 08:54:46,190 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) [2023-02-18 08:54:46,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-18 08:54:46,195 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-18 08:54:46,195 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-18 08:54:46,195 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-18 08:54:46,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-18 08:54:46,197 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:54:46,197 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:46,197 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:46,198 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2023-02-18 08:54:46,198 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:54:46,199 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 [2023-02-18 08:54:46,199 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 [2023-02-18 08:54:46,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,203 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 1 times [2023-02-18 08:54:46,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:46,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669300520] [2023-02-18 08:54:46,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:46,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:46,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,229 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 2 times [2023-02-18 08:54:46,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:46,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286531890] [2023-02-18 08:54:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,235 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:46,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,239 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash 889692235, now seen corresponding path program 1 times [2023-02-18 08:54:46,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:46,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686808672] [2023-02-18 08:54:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:46,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:46,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:46,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,257 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:46,261 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:46,262 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:46,262 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:46,262 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:46,262 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:46,262 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,262 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:46,262 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:46,262 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2023-02-18 08:54:46,262 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:46,262 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:46,264 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,270 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,272 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,273 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,275 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,277 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,283 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:46,286 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:46,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,289 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) [2023-02-18 08:54:46,296 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 [2023-02-18 08:54:46,299 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,299 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,320 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,320 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: [] [2023-02-18 08:54:46,326 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 [2023-02-18 08:54:46,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,328 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) [2023-02-18 08:54:46,329 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 [2023-02-18 08:54:46,331 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,332 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,347 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,347 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: [] [2023-02-18 08:54:46,352 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 [2023-02-18 08:54:46,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,354 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) [2023-02-18 08:54:46,356 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 [2023-02-18 08:54:46,357 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,358 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,374 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,375 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: [] [2023-02-18 08:54:46,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2023-02-18 08:54:46,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,380 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) [2023-02-18 08:54:46,382 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 [2023-02-18 08:54:46,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,398 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,398 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: [] [2023-02-18 08:54:46,402 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 [2023-02-18 08:54:46,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,404 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) [2023-02-18 08:54:46,405 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 [2023-02-18 08:54:46,409 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,410 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,425 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 [2023-02-18 08:54:46,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,426 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) [2023-02-18 08:54:46,427 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 [2023-02-18 08:54:46,430 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:46,430 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,448 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:46,452 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 [2023-02-18 08:54:46,453 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:46,453 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:46,453 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:46,453 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:46,453 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:46,453 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,453 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:46,453 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:46,453 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration2_Loop [2023-02-18 08:54:46,453 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:46,453 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:46,455 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,456 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,457 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,459 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,460 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,461 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,465 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:46,465 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:46,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,467 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) [2023-02-18 08:54:46,470 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 [2023-02-18 08:54:46,472 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 [2023-02-18 08:54:46,483 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:46,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:46,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:46,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:46,484 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:46,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:46,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:46,492 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:46,498 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 [2023-02-18 08:54:46,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,501 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) [2023-02-18 08:54:46,514 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 [2023-02-18 08:54:46,522 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:46,522 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:46,522 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:46,522 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:46,525 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:46,525 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:46,529 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 [2023-02-18 08:54:46,536 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:46,545 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 [2023-02-18 08:54:46,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,547 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) [2023-02-18 08:54:46,551 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 [2023-02-18 08:54:46,551 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 [2023-02-18 08:54:46,558 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:46,558 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:46,558 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:46,558 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:46,559 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:46,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:46,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:46,565 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:46,575 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 [2023-02-18 08:54:46,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,577 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) [2023-02-18 08:54:46,581 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 [2023-02-18 08:54:46,581 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 [2023-02-18 08:54:46,588 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:46,589 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:46,589 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:46,589 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:46,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:46,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:46,604 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:46,611 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 [2023-02-18 08:54:46,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,613 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) [2023-02-18 08:54:46,622 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 [2023-02-18 08:54:46,630 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:46,630 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:46,630 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:46,630 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:46,630 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:46,631 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:46,631 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:46,634 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 [2023-02-18 08:54:46,649 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:46,651 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-18 08:54:46,651 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:54:46,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,655 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) [2023-02-18 08:54:46,656 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 [2023-02-18 08:54:46,657 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:46,657 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:46,657 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:46,657 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 [] [2023-02-18 08:54:46,666 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 [2023-02-18 08:54:46,667 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:46,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:46,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:46,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:46,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:46,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:46,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:46,707 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 [2023-02-18 08:54:46,707 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) [2023-02-18 08:54:46,723 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. [2023-02-18 08:54:46,723 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 [2023-02-18 08:54:46,724 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) [2023-02-18 08:54:46,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-18 08:54:46,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-18 08:54:46,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:46,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-18 08:54:46,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:46,725 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2023-02-18 08:54:46,726 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:46,726 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2023-02-18 08:54:46,726 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:54:46,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2023-02-18 08:54:46,727 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-18 08:54:46,727 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-18 08:54:46,727 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-18 08:54:46,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:46,727 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-18 08:54:46,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-18 08:54:46,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-02-18 08:54:46,728 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) [2023-02-18 08:54:46,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2023-02-18 08:54:46,729 INFO L240 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-18 08:54:46,729 INFO L428 stractBuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-18 08:54:46,729 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-18 08:54:46,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 17 transitions. [2023-02-18 08:54:46,730 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 08:54:46,730 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:46,730 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:46,730 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2023-02-18 08:54:46,730 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:54:46,730 INFO L748 eck$LassoCheckResult]: Stem: 133#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 134#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 137#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 129#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 130#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 138#L21 assume 0 != main_#t~nondet3#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_~x~0#1 - 1;main_~d~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 135#L21-2 [2023-02-18 08:54:46,730 INFO L750 eck$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 [2023-02-18 08:54:46,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,731 INFO L85 PathProgramCache]: Analyzing trace with hash 889692233, now seen corresponding path program 2 times [2023-02-18 08:54:46,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:46,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805744768] [2023-02-18 08:54:46,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:46,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:46,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 3 times [2023-02-18 08:54:46,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:46,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152327768] [2023-02-18 08:54:46,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:46,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,749 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:46,753 INFO L85 PathProgramCache]: Analyzing trace with hash 295744366, now seen corresponding path program 2 times [2023-02-18 08:54:46,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:46,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742088125] [2023-02-18 08:54:46,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:46,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:46,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:46,770 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:46,770 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:46,770 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:46,770 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:46,770 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:46,771 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,771 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:46,771 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:46,771 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2023-02-18 08:54:46,771 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:46,771 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:46,772 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,773 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,775 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,776 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,777 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,778 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:46,782 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:46,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,783 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) [2023-02-18 08:54:46,801 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 [2023-02-18 08:54:46,802 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,802 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,819 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,819 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: [] [2023-02-18 08:54:46,823 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 [2023-02-18 08:54:46,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,824 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) [2023-02-18 08:54:46,826 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 [2023-02-18 08:54:46,828 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,828 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,840 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,841 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: [] [2023-02-18 08:54:46,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2023-02-18 08:54:46,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,845 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) [2023-02-18 08:54:46,847 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 [2023-02-18 08:54:46,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,849 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,857 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:46,857 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: [] [2023-02-18 08:54:46,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-18 08:54:46,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,866 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) [2023-02-18 08:54:46,868 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 [2023-02-18 08:54:46,870 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:46,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,880 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 [2023-02-18 08:54:46,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,882 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) [2023-02-18 08:54:46,887 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 [2023-02-18 08:54:46,888 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:46,888 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:46,925 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:46,930 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 [2023-02-18 08:54:46,931 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:46,931 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:46,931 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:46,931 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:46,931 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:46,931 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,931 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:46,931 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:46,931 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration3_Loop [2023-02-18 08:54:46,931 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:46,931 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:46,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,936 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,938 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,939 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,940 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:46,945 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:46,945 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:46,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,947 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) [2023-02-18 08:54:46,955 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 [2023-02-18 08:54:46,964 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:46,964 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:46,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:46,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:46,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:46,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:46,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:46,968 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 [2023-02-18 08:54:46,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:46,984 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 [2023-02-18 08:54:46,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:46,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:46,986 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) [2023-02-18 08:54:46,994 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 [2023-02-18 08:54:47,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:47,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:47,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:47,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:47,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:47,004 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:47,004 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:47,006 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 [2023-02-18 08:54:47,029 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:47,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:47,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,037 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) [2023-02-18 08:54:47,088 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 [2023-02-18 08:54:47,090 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 [2023-02-18 08:54:47,098 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:47,098 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:47,098 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:47,098 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:47,100 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:47,100 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:47,112 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 [2023-02-18 08:54:47,113 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:47,117 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 [2023-02-18 08:54:47,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:47,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,122 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) [2023-02-18 08:54:47,125 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 [2023-02-18 08:54:47,126 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 [2023-02-18 08:54:47,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:47,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:47,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:47,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:47,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:47,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:47,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:47,149 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:47,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:47,152 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:47,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,157 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) [2023-02-18 08:54:47,161 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 [2023-02-18 08:54:47,162 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:47,162 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:47,162 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:47,162 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 [] [2023-02-18 08:54:47,167 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 [2023-02-18 08:54:47,167 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:47,208 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 [2023-02-18 08:54:47,209 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) [2023-02-18 08:54:47,222 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. [2023-02-18 08:54:47,223 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 [2023-02-18 08:54:47,224 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) [2023-02-18 08:54:47,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-18 08:54:47,225 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-18 08:54:47,225 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,225 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:47,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:47,273 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 [2023-02-18 08:54:47,274 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) [2023-02-18 08:54:47,285 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. [2023-02-18 08:54:47,285 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 [2023-02-18 08:54:47,287 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) [2023-02-18 08:54:47,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2023-02-18 08:54:47,287 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-18 08:54:47,287 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,287 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:47,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,320 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:47,326 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 [2023-02-18 08:54:47,327 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) [2023-02-18 08:54:47,342 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. [2023-02-18 08:54:47,343 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 [2023-02-18 08:54:47,345 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) [2023-02-18 08:54:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-18 08:54:47,345 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-18 08:54:47,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-18 08:54:47,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,346 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-18 08:54:47,346 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 24 transitions. [2023-02-18 08:54:47,349 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-18 08:54:47,350 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 14 states and 20 transitions. [2023-02-18 08:54:47,350 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-18 08:54:47,350 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-18 08:54:47,350 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 20 transitions. [2023-02-18 08:54:47,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:47,350 INFO L218 hiAutomatonCegarLoop]: Abstraction has 14 states and 20 transitions. [2023-02-18 08:54:47,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 20 transitions. [2023-02-18 08:54:47,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 6. [2023-02-18 08:54:47,352 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) [2023-02-18 08:54:47,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2023-02-18 08:54:47,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-18 08:54:47,354 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2023-02-18 08:54:47,354 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-18 08:54:47,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2023-02-18 08:54:47,354 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-18 08:54:47,354 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:47,354 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:47,354 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:54:47,354 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:54:47,355 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 [2023-02-18 08:54:47,355 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 [2023-02-18 08:54:47,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,355 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-18 08:54:47,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:47,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269440188] [2023-02-18 08:54:47,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:47,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,362 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:47,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,367 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:47,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1316, now seen corresponding path program 1 times [2023-02-18 08:54:47,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:47,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950349052] [2023-02-18 08:54:47,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:47,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:47,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,379 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:47,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:47,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,383 INFO L85 PathProgramCache]: Analyzing trace with hash 925798, now seen corresponding path program 3 times [2023-02-18 08:54:47,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:47,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950576980] [2023-02-18 08:54:47,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:47,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:47,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,387 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,390 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:47,392 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:47,392 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:47,392 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:47,392 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:47,392 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:47,393 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,393 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:47,393 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:47,393 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2023-02-18 08:54:47,393 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:47,393 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:47,395 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,396 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,397 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,398 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,399 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,400 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,404 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:47,408 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:47,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,410 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) [2023-02-18 08:54:47,413 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 [2023-02-18 08:54:47,416 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:47,416 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:47,449 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 [2023-02-18 08:54:47,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,451 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) [2023-02-18 08:54:47,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:47,456 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:47,462 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 [2023-02-18 08:54:47,485 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:47,492 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 [2023-02-18 08:54:47,493 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:47,493 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:47,493 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:47,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:47,493 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:47,493 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,493 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:47,493 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:47,493 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration4_Loop [2023-02-18 08:54:47,493 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:47,493 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:47,494 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,497 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,498 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,502 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:47,502 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:47,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,504 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) [2023-02-18 08:54:47,507 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 [2023-02-18 08:54:47,508 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 [2023-02-18 08:54:47,516 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:47,516 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:47,517 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:47,517 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:47,517 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:47,517 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:47,518 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:47,541 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:47,543 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:47,544 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:47,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,545 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) [2023-02-18 08:54:47,569 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:47,569 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:47,570 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:47,570 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 [] [2023-02-18 08:54:47,572 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 [2023-02-18 08:54:47,576 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 [2023-02-18 08:54:47,577 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:47,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,593 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:47,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:47,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:47,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:47,606 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 [2023-02-18 08:54:47,607 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) [2023-02-18 08:54:47,617 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. [2023-02-18 08:54:47,617 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 [2023-02-18 08:54:47,618 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) [2023-02-18 08:54:47,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 4 transitions. [2023-02-18 08:54:47,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-18 08:54:47,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 4 letters. Loop has 2 letters. [2023-02-18 08:54:47,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 4 transitions. Stem has 2 letters. Loop has 4 letters. [2023-02-18 08:54:47,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:47,618 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 18 transitions. [2023-02-18 08:54:47,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-18 08:54:47,619 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 10 states and 14 transitions. [2023-02-18 08:54:47,620 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-18 08:54:47,620 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-18 08:54:47,620 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2023-02-18 08:54:47,620 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:47,620 INFO L218 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-18 08:54:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2023-02-18 08:54:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-02-18 08:54:47,621 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) [2023-02-18 08:54:47,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2023-02-18 08:54:47,621 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-18 08:54:47,621 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2023-02-18 08:54:47,621 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-18 08:54:47,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2023-02-18 08:54:47,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-18 08:54:47,622 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:47,622 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:47,623 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-18 08:54:47,623 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 08:54:47,623 INFO L748 eck$LassoCheckResult]: Stem: 340#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 341#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_~x~0#1, main_~y~0#1, main_~d~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~d~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~d~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 342#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 343#L21 assume !(0 != main_#t~nondet3#1);havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~y~0#1 := main_~y~0#1 - 1;main_~d~0#1 := main_~d~0#1 - 1; 344#L21-2 assume !!((main_~x~0#1 > 0 && main_~y~0#1 > 0) && main_~d~0#1 > 0); 336#L21 [2023-02-18 08:54:47,624 INFO L750 eck$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 [2023-02-18 08:54:47,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,624 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 2 times [2023-02-18 08:54:47,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:47,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066864333] [2023-02-18 08:54:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,629 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:47,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,644 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:47,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1406, now seen corresponding path program 2 times [2023-02-18 08:54:47,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:47,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484246083] [2023-02-18 08:54:47,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:47,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:47,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,654 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:47,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:47,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1810715040, now seen corresponding path program 3 times [2023-02-18 08:54:47,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:47,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041603704] [2023-02-18 08:54:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:47,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,677 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:47,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:47,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:47,694 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:47,695 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:47,695 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:47,695 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:47,695 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:47,695 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,695 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:47,695 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:47,695 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2023-02-18 08:54:47,695 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:47,695 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:47,696 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,714 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,715 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,717 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,720 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:47,720 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:47,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,721 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) [2023-02-18 08:54:47,724 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 [2023-02-18 08:54:47,726 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:47,726 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:47,753 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:47,753 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: [] [2023-02-18 08:54:47,761 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 [2023-02-18 08:54:47,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,762 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) [2023-02-18 08:54:47,767 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:47,767 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:47,782 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 [2023-02-18 08:54:47,797 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:47,797 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: [] [2023-02-18 08:54:47,805 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 [2023-02-18 08:54:47,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,807 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) [2023-02-18 08:54:47,810 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 [2023-02-18 08:54:47,811 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:47,811 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:47,839 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 [2023-02-18 08:54:47,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,840 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) [2023-02-18 08:54:47,843 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 [2023-02-18 08:54:47,844 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:47,844 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:47,894 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:47,900 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:47,900 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:47,900 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:47,901 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:47,901 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:47,901 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:47,901 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,901 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:47,901 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:47,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration5_Loop [2023-02-18 08:54:47,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:47,901 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:47,902 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,911 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,912 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:47,915 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:47,916 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:47,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,917 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) [2023-02-18 08:54:47,929 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 [2023-02-18 08:54:47,938 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:47,938 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:47,938 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:47,938 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:47,938 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:47,939 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:47,939 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:47,940 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 [2023-02-18 08:54:47,949 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:47,955 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:47,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,958 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) [2023-02-18 08:54:47,962 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 [2023-02-18 08:54:47,963 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 [2023-02-18 08:54:47,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:47,970 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:47,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:47,970 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-18 08:54:47,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:47,970 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-18 08:54:47,971 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:47,986 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:47,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2023-02-18 08:54:47,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:47,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:47,991 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) [2023-02-18 08:54:47,991 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 [2023-02-18 08:54:47,995 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 [2023-02-18 08:54:48,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:48,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:48,003 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:48,003 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:48,005 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:48,005 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:48,015 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:48,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:48,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,021 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) [2023-02-18 08:54:48,037 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 [2023-02-18 08:54:48,038 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 [2023-02-18 08:54:48,046 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:48,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:48,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:48,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:48,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:48,048 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:48,048 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:48,061 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:48,063 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:48,063 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:48,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,065 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) [2023-02-18 08:54:48,067 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 [2023-02-18 08:54:48,069 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:48,069 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:48,069 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:48,069 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 [] [2023-02-18 08:54:48,072 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 [2023-02-18 08:54:48,073 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:48,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:48,125 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 [2023-02-18 08:54:48,126 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) [2023-02-18 08:54:48,137 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. [2023-02-18 08:54:48,138 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 [2023-02-18 08:54:48,138 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) [2023-02-18 08:54:48,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-18 08:54:48,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-18 08:54:48,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,139 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:48,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:48,165 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 [2023-02-18 08:54:48,165 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) [2023-02-18 08:54:48,176 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. [2023-02-18 08:54:48,176 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 [2023-02-18 08:54:48,177 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) [2023-02-18 08:54:48,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-18 08:54:48,177 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-18 08:54:48,177 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,178 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-18 08:54:48,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,197 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:54:48,203 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 [2023-02-18 08:54:48,203 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) [2023-02-18 08:54:48,215 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. [2023-02-18 08:54:48,215 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 [2023-02-18 08:54:48,216 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) [2023-02-18 08:54:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2023-02-18 08:54:48,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-18 08:54:48,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-18 08:54:48,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,217 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-18 08:54:48,217 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2023-02-18 08:54:48,218 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-18 08:54:48,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 17 transitions. [2023-02-18 08:54:48,219 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2023-02-18 08:54:48,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2023-02-18 08:54:48,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2023-02-18 08:54:48,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-18 08:54:48,219 INFO L218 hiAutomatonCegarLoop]: Abstraction has 12 states and 17 transitions. [2023-02-18 08:54:48,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2023-02-18 08:54:48,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2023-02-18 08:54:48,221 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) [2023-02-18 08:54:48,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-18 08:54:48,221 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-18 08:54:48,221 INFO L428 stractBuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-18 08:54:48,221 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-18 08:54:48,221 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2023-02-18 08:54:48,222 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2023-02-18 08:54:48,222 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:54:48,222 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:54:48,222 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2023-02-18 08:54:48,222 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1] [2023-02-18 08:54:48,223 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 [2023-02-18 08:54:48,223 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 [2023-02-18 08:54:48,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,223 INFO L85 PathProgramCache]: Analyzing trace with hash 28699811, now seen corresponding path program 3 times [2023-02-18 08:54:48,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:48,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119355870] [2023-02-18 08:54:48,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:48,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:48,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:48,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:48,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1351673, now seen corresponding path program 1 times [2023-02-18 08:54:48,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:48,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989454802] [2023-02-18 08:54:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:48,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:48,237 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:48,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:48,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,241 INFO L85 PathProgramCache]: Analyzing trace with hash 635399067, now seen corresponding path program 4 times [2023-02-18 08:54:48,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:54:48,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623349855] [2023-02-18 08:54:48,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:54:48,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:54:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:48,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:54:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:54:48,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:54:48,277 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 [2023-02-18 08:54:48,279 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:48,279 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:48,280 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:48,280 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:48,280 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:54:48,280 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,280 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:48,280 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:48,280 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2023-02-18 08:54:48,281 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:48,281 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:48,282 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,283 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,284 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,285 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,288 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,290 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,291 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,293 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 [2023-02-18 08:54:48,299 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:48,301 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:54:48,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,302 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 [2023-02-18 08:54:48,305 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) [2023-02-18 08:54:48,308 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 [2023-02-18 08:54:48,309 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:48,309 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:48,333 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:48,334 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: [] [2023-02-18 08:54:48,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:48,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,340 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) [2023-02-18 08:54:48,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:48,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:48,365 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 [2023-02-18 08:54:48,368 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:48,368 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: [] [2023-02-18 08:54:48,371 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 [2023-02-18 08:54:48,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,373 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) [2023-02-18 08:54:48,374 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 [2023-02-18 08:54:48,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:48,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:48,389 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:54:48,389 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: [] [2023-02-18 08:54:48,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2023-02-18 08:54:48,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,394 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) [2023-02-18 08:54:48,394 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 [2023-02-18 08:54:48,397 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:54:48,397 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:48,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:48,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,409 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) [2023-02-18 08:54:48,411 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 [2023-02-18 08:54:48,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:54:48,413 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:54:48,457 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:54:48,462 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 [2023-02-18 08:54:48,462 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:54:48,462 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:54:48,462 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:54:48,462 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:54:48,462 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:54:48,462 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,462 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:54:48,462 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:54:48,463 INFO L133 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a.c_Iteration6_Loop [2023-02-18 08:54:48,463 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:54:48,463 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:54:48,464 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,465 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,466 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,468 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,469 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:54:48,472 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:54:48,472 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:54:48,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,474 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) [2023-02-18 08:54:48,485 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 [2023-02-18 08:54:48,486 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 [2023-02-18 08:54:48,494 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:48,494 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:48,494 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:48,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:48,496 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:54:48,496 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:54:48,510 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:48,515 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 [2023-02-18 08:54:48,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,517 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) [2023-02-18 08:54:48,519 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 [2023-02-18 08:54:48,521 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 [2023-02-18 08:54:48,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:48,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:48,529 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:48,529 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:48,529 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:48,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:48,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:48,543 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:54:48,547 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2023-02-18 08:54:48,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,549 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) [2023-02-18 08:54:48,557 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 [2023-02-18 08:54:48,565 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:54:48,565 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:54:48,566 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:54:48,566 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:54:48,566 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:54:48,567 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 08:54:48,567 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:54:48,570 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 [2023-02-18 08:54:48,581 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:54:48,585 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:54:48,585 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 08:54:48,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:54:48,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:54:48,587 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) [2023-02-18 08:54:48,590 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 [2023-02-18 08:54:48,591 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:54:48,591 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:54:48,591 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:54:48,591 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 [] [2023-02-18 08:54:48,597 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 [2023-02-18 08:54:48,597 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:54:48,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:54:48,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:54:48,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:54:48,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:54:48,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-18 08:54:48,630 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 [2023-02-18 08:54:48,630 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) [2023-02-18 08:54:48,644 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. [2023-02-18 08:54:48,644 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 [2023-02-18 08:54:48,645 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) [2023-02-18 08:54:48,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-18 08:54:48,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-18 08:54:48,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 4 letters. [2023-02-18 08:54:48,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,646 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 8 letters. [2023-02-18 08:54:48,646 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:54:48,646 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 32 transitions. [2023-02-18 08:54:48,647 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:54:48,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2023-02-18 08:54:48,647 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-18 08:54:48,647 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-18 08:54:48,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-18 08:54:48,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 08:54:48,648 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:54:48,648 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:54:48,648 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:54:48,648 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-18 08:54:48,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:54:48,648 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:54:48,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-18 08:54:48,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 08:54:48 BoogieIcfgContainer [2023-02-18 08:54:48,655 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 08:54:48,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:54:48,656 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:54:48,656 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:54:48,656 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:54:45" (3/4) ... [2023-02-18 08:54:48,659 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 08:54:48,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:54:48,659 INFO L158 Benchmark]: Toolchain (without parser) took 4072.97ms. Allocated memory is still 138.4MB. Free memory was 93.8MB in the beginning and 84.9MB in the end (delta: 8.9MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-02-18 08:54:48,660 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.6MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:54:48,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.19ms. Allocated memory is still 138.4MB. Free memory was 93.3MB in the beginning and 84.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:54:48,660 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.70ms. Allocated memory is still 138.4MB. Free memory was 84.4MB in the beginning and 82.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:54:48,660 INFO L158 Benchmark]: Boogie Preprocessor took 15.08ms. Allocated memory is still 138.4MB. Free memory was 82.8MB in the beginning and 81.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:54:48,661 INFO L158 Benchmark]: RCFGBuilder took 187.23ms. Allocated memory is still 138.4MB. Free memory was 81.8MB in the beginning and 73.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:54:48,661 INFO L158 Benchmark]: BuchiAutomizer took 3614.43ms. Allocated memory is still 138.4MB. Free memory was 73.4MB in the beginning and 86.0MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:54:48,661 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 138.4MB. Free memory was 86.0MB in the beginning and 84.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:54:48,663 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 115.3MB. Free memory was 89.6MB in the beginning and 89.6MB in the end (delta: 31.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.19ms. Allocated memory is still 138.4MB. Free memory was 93.3MB in the beginning and 84.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.70ms. Allocated memory is still 138.4MB. Free memory was 84.4MB in the beginning and 82.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.08ms. Allocated memory is still 138.4MB. Free memory was 82.8MB in the beginning and 81.8MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 187.23ms. Allocated memory is still 138.4MB. Free memory was 81.8MB in the beginning and 73.4MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 3614.43ms. Allocated memory is still 138.4MB. Free memory was 73.4MB in the beginning and 86.0MB in the end (delta: -12.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 138.4MB. Free memory was 86.0MB in the beginning and 84.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 3.5s and 7 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. 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: inital28 mio100 ax144 hnf100 lsp26 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq157 hnf93 smp100 dnf100 smp100 tf112 neg100 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 44ms 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! [2023-02-18 08:54:48,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2023-02-18 08:54:48,877 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