./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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/BradleyMannaSipma-CAV2005-Fig1.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 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 03:06:38,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 03:06:38,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 03:06:38,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 03:06:38,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 03:06:38,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 03:06:38,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 03:06:38,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 03:06:38,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 03:06:38,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 03:06:38,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 03:06:38,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 03:06:38,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 03:06:38,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 03:06:38,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 03:06:38,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 03:06:38,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 03:06:38,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 03:06:38,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 03:06:38,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 03:06:38,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 03:06:38,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 03:06:38,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 03:06:38,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 03:06:38,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 03:06:38,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 03:06:38,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 03:06:38,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 03:06:38,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 03:06:38,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 03:06:38,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 03:06:38,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 03:06:38,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 03:06:38,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 03:06:38,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 03:06:38,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 03:06:38,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 03:06:38,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 03:06:38,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 03:06:38,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 03:06:38,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 03:06:38,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 03:06:38,955 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 03:06:38,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 03:06:38,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 03:06:38,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 03:06:38,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 03:06:38,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 03:06:38,958 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 03:06:38,958 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 03:06:38,959 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 03:06:38,959 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 03:06:38,960 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 03:06:38,960 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 03:06:38,960 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 03:06:38,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 03:06:38,961 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 03:06:38,961 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 03:06:38,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 03:06:38,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 03:06:38,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 03:06:38,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 03:06:38,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 03:06:38,962 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 03:06:38,962 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 03:06:38,962 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 03:06:38,962 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 03:06:38,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 03:06:38,963 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 03:06:38,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 03:06:38,964 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 03:06:38,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8553bd7027647a5604588c30aa29c454809a172163824e055b8bdeea70d5613d [2023-02-14 03:06:39,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 03:06:39,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 03:06:39,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 03:06:39,259 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 03:06:39,259 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 03:06:39,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2023-02-14 03:06:40,392 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 03:06:40,596 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 03:06:40,596 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/BradleyMannaSipma-CAV2005-Fig1.c [2023-02-14 03:06:40,602 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d117bdc49/a5cae530601149bba93c9925adcef694/FLAG8feb032dd [2023-02-14 03:06:40,622 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d117bdc49/a5cae530601149bba93c9925adcef694 [2023-02-14 03:06:40,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 03:06:40,626 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 03:06:40,630 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 03:06:40,630 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 03:06:40,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 03:06:40,634 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc68243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40, skipping insertion in model container [2023-02-14 03:06:40,635 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 03:06:40,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 03:06:40,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:06:40,775 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 03:06:40,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:06:40,797 INFO L208 MainTranslator]: Completed translation [2023-02-14 03:06:40,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40 WrapperNode [2023-02-14 03:06:40,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 03:06:40,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 03:06:40,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 03:06:40,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 03:06:40,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,809 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,826 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18 [2023-02-14 03:06:40,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 03:06:40,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 03:06:40,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 03:06:40,829 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 03:06:40,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,843 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,844 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 03:06:40,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 03:06:40,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 03:06:40,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 03:06:40,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (1/1) ... [2023-02-14 03:06:40,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:40,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:40,871 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:40,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-14 03:06:40,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 03:06:40,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 03:06:41,001 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 03:06:41,004 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 03:06:41,102 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 03:06:41,108 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 03:06:41,108 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 03:06:41,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:06:41 BoogieIcfgContainer [2023-02-14 03:06:41,110 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 03:06:41,112 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 03:06:41,112 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 03:06:41,115 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 03:06:41,116 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:06:41,116 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 03:06:40" (1/3) ... [2023-02-14 03:06:41,117 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b55a3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:06:41, skipping insertion in model container [2023-02-14 03:06:41,117 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:06:41,117 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:06:40" (2/3) ... [2023-02-14 03:06:41,118 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7b55a3fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:06:41, skipping insertion in model container [2023-02-14 03:06:41,118 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:06:41,118 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:06:41" (3/3) ... [2023-02-14 03:06:41,119 INFO L332 chiAutomizerObserver]: Analyzing ICFG BradleyMannaSipma-CAV2005-Fig1.c [2023-02-14 03:06:41,183 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 03:06:41,184 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 03:06:41,184 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 03:06:41,184 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 03:06:41,184 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 03:06:41,184 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 03:06:41,184 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 03:06:41,185 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 03:06:41,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:41,203 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:41,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:41,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:41,208 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 03:06:41,208 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:41,209 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 03:06:41,209 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:41,210 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:41,210 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:41,211 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:41,211 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 03:06:41,211 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:41,220 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 3#L18true assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 6#L20-2true [2023-02-14 03:06:41,220 INFO L750 eck$LassoCheckResult]: Loop: 6#L20-2true assume !!(main_~y1~0#1 != main_~y2~0#1); 9#L20true assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 6#L20-2true [2023-02-14 03:06:41,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:41,232 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-14 03:06:41,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:41,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895582557] [2023-02-14 03:06:41,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:41,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:41,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:41,317 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:41,343 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:41,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:41,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 1 times [2023-02-14 03:06:41,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:41,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599449477] [2023-02-14 03:06:41,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:41,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:41,369 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:41,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:41,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:41,393 INFO L85 PathProgramCache]: Analyzing trace with hash 28693989, now seen corresponding path program 1 times [2023-02-14 03:06:41,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:41,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015836656] [2023-02-14 03:06:41,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:41,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:41,405 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:41,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:41,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:41,541 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:41,551 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:41,551 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:41,551 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:41,551 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:41,552 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:41,552 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:41,552 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:41,552 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2023-02-14 03:06:41,552 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:41,553 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:41,593 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,605 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,627 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,630 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,638 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,641 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,710 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:41,711 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:41,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:41,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:41,716 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:41,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:41,725 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:41,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-14 03:06:41,763 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:41,763 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:41,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:41,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:41,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:41,778 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:41,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-14 03:06:41,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:41,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:41,820 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 [2023-02-14 03:06:41,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:41,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:41,822 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:41,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-14 03:06:41,831 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:41,831 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:41,929 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:41,933 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-14 03:06:41,933 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:41,933 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:41,933 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:41,934 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:41,934 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:41,934 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:41,934 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:41,934 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:41,934 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration1_Lasso [2023-02-14 03:06:41,934 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:41,934 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:41,937 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,951 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,957 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,962 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:41,965 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,033 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:42,037 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:42,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,041 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-14 03:06:42,053 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:42,061 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:42,061 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:42,061 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:42,061 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:42,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:42,071 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:42,099 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:42,104 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-14 03:06:42,104 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:06:42,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,138 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-14 03:06:42,141 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:42,168 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-14 03:06:42,169 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:42,169 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1, ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y1~0#1 - 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-02-14 03:06:42,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:42,179 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-14 03:06:42,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:42,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:42,242 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 03:06:42,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:42,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:42,258 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:42,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:42,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:42,295 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-14 03:06:42,296 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:42,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 9 states, 8 states have (on average 1.5) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 29 states and 36 transitions. Complement of second has 6 states. [2023-02-14 03:06:42,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:42,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2023-02-14 03:06:42,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-14 03:06:42,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:42,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:42,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:42,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-14 03:06:42,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:42,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 36 transitions. [2023-02-14 03:06:42,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:42,373 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 9 states and 12 transitions. [2023-02-14 03:06:42,374 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-14 03:06:42,374 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2023-02-14 03:06:42,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2023-02-14 03:06:42,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:42,375 INFO L218 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-14 03:06:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2023-02-14 03:06:42,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-14 03:06:42,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 12 transitions. [2023-02-14 03:06:42,395 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-14 03:06:42,395 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2023-02-14 03:06:42,396 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 03:06:42,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 12 transitions. [2023-02-14 03:06:42,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:42,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:42,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:42,397 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-14 03:06:42,397 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:42,397 INFO L748 eck$LassoCheckResult]: Stem: 92#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 93#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_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 85#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 86#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 90#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 87#L20-2 [2023-02-14 03:06:42,397 INFO L750 eck$LassoCheckResult]: Loop: 87#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 88#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 87#L20-2 [2023-02-14 03:06:42,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 1 times [2023-02-14 03:06:42,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:42,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404175958] [2023-02-14 03:06:42,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:42,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:42,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:42,416 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:42,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:42,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 2 times [2023-02-14 03:06:42,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:42,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404028399] [2023-02-14 03:06:42,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:42,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:42,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:42,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:42,445 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 [2023-02-14 03:06:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:42,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:42,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:42,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122026, now seen corresponding path program 1 times [2023-02-14 03:06:42,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:42,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036470407] [2023-02-14 03:06:42,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:42,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:42,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:42,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:42,548 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:42,548 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:42,548 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:42,548 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:42,549 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:42,549 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,549 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:42,549 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:42,549 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2023-02-14 03:06:42,549 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:42,549 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:42,553 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,557 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,574 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,576 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,581 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,586 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,637 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:42,638 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:42,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,641 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:42,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:42,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-14 03:06:42,672 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:42,672 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:42,678 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 [2023-02-14 03:06:42,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,681 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,696 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:42,696 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:42,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-14 03:06:42,729 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:42,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,733 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-14 03:06:42,738 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:42,738 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:42,825 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:42,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:42,831 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:42,831 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:42,831 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:42,831 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:42,831 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:42,832 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,832 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:42,832 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:42,832 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration2_Lasso [2023-02-14 03:06:42,832 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:42,832 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:42,833 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,842 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,846 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,857 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,859 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,864 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:42,934 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:42,935 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:42,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,937 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:42,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:42,960 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:42,960 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:42,960 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:42,964 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:42,964 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:42,968 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-14 03:06:42,977 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:42,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:42,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:42,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:42,986 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:42,995 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 [2023-02-14 03:06:43,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-14 03:06:43,005 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,005 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:43,005 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,005 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,005 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:43,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:43,010 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:43,013 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2023-02-14 03:06:43,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,015 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-14 03:06:43,019 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:43,029 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,029 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:43,029 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,029 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,029 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,030 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:43,030 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:43,037 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:43,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,045 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,047 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-14 03:06:43,048 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:43,056 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,057 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:43,057 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,057 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,057 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:43,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:43,070 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:43,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,077 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-14 03:06:43,088 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:43,097 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,097 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,097 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,097 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,099 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:43,099 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:43,117 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:43,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,126 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-14 03:06:43,130 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:43,139 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,139 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,139 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,143 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:43,143 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:43,169 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:43,180 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-02-14 03:06:43,180 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:06:43,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,197 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:43,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2023-02-14 03:06:43,232 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-14 03:06:43,233 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:43,233 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = -1*ULTIMATE.start_main_~y2~0#1 + 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-02-14 03:06:43,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2023-02-14 03:06:43,247 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-14 03:06:43,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:43,300 WARN L261 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:43,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:43,322 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:43,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:43,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:43,329 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 03:06:43,330 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5 Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:43,367 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 12 transitions. cyclomatic complexity: 5. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 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 13 states and 18 transitions. Complement of second has 6 states. [2023-02-14 03:06:43,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:43,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:43,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-14 03:06:43,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:43,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:43,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-14 03:06:43,370 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:43,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2023-02-14 03:06:43,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:43,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2023-02-14 03:06:43,373 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:43,374 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 18 transitions. [2023-02-14 03:06:43,375 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-14 03:06:43,375 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 03:06:43,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2023-02-14 03:06:43,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:43,376 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-14 03:06:43,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2023-02-14 03:06:43,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-02-14 03:06:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2023-02-14 03:06:43,378 INFO L240 hiAutomatonCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-14 03:06:43,378 INFO L428 stractBuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2023-02-14 03:06:43,379 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 03:06:43,379 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 13 states and 18 transitions. [2023-02-14 03:06:43,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:06:43,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:43,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:43,381 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1] [2023-02-14 03:06:43,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:43,382 INFO L748 eck$LassoCheckResult]: Stem: 166#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 167#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 159#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 160#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 164#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 168#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 169#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 161#L20-2 [2023-02-14 03:06:43,382 INFO L750 eck$LassoCheckResult]: Loop: 161#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 162#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 161#L20-2 [2023-02-14 03:06:43,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:43,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1805122028, now seen corresponding path program 2 times [2023-02-14 03:06:43,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:43,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524487841] [2023-02-14 03:06:43,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:43,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:43,402 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:43,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:43,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:43,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:43,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1412, now seen corresponding path program 3 times [2023-02-14 03:06:43,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:43,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11095177] [2023-02-14 03:06:43,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:43,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:43,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:43,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:43,414 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:43,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:43,415 INFO L85 PathProgramCache]: Analyzing trace with hash -444518225, now seen corresponding path program 2 times [2023-02-14 03:06:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:43,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109266724] [2023-02-14 03:06:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:43,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:43,423 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:43,430 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:43,497 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:43,497 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:43,497 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:43,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:43,498 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:43,498 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,499 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:43,499 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:43,499 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2023-02-14 03:06:43,499 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:43,499 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:43,500 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,504 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,509 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,520 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,570 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:43,571 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:43,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,573 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2023-02-14 03:06:43,579 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:43,579 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:43,592 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:43,592 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:43,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,597 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,598 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-14 03:06:43,602 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:43,602 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:43,625 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:43,625 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:43,629 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,630 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-14 03:06:43,634 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:43,634 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:43,647 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:43,647 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:43,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,654 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-14 03:06:43,658 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:43,658 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:43,666 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:43,666 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:43,672 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2023-02-14 03:06:43,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,674 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:43,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:43,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-14 03:06:43,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,722 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-14 03:06:43,727 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:43,727 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:43,847 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:43,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,856 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:43,856 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:43,856 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:43,857 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:43,857 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:43,857 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,857 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:43,857 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:43,857 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration3_Lasso [2023-02-14 03:06:43,857 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:43,857 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:43,858 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,861 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,864 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,866 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,875 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,878 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:43,922 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:43,923 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:43,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,931 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,942 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:43,951 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,951 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:43,951 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,951 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,951 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,952 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:43,952 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:43,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-14 03:06:43,965 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:43,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:43,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:43,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:43,974 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:43,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-14 03:06:43,978 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:43,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:43,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:43,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:43,986 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:43,988 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:43,997 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:44,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:44,017 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:44,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:44,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,027 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-14 03:06:44,031 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:44,039 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:44,039 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:44,039 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:44,039 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:44,039 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:44,040 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:44,040 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:44,057 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:44,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:44,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,062 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-14 03:06:44,066 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:44,073 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:44,074 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:44,074 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:44,074 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:44,077 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:44,077 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:44,090 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:44,100 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-14 03:06:44,101 INFO L444 ModelExtractionUtils]: 2 out of 10 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-14 03:06:44,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,106 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,117 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:44,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-14 03:06:44,138 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-02-14 03:06:44,138 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:44,138 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [2*ULTIMATE.start_main_~y1~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y2~0#1 - 1 >= 0] [2023-02-14 03:06:44,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:44,151 INFO L156 tatePredicateManager]: 1 out of 2 supporting invariants were superfluous and have been removed [2023-02-14 03:06:44,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:44,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:44,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:44,224 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:44,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:44,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:44,233 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 03:06:44,233 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,264 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 15 states and 22 transitions. Complement of second has 6 states. [2023-02-14 03:06:44,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-14 03:06:44,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-14 03:06:44,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:44,268 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 03:06:44,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:44,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:44,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:44,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:44,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:44,317 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:44,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:44,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:44,323 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 03:06:44,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,346 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 15 states and 22 transitions. Complement of second has 6 states. [2023-02-14 03:06:44,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:44,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-14 03:06:44,349 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-14 03:06:44,349 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:44,349 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-14 03:06:44,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:44,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:44,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:44,407 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:44,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:44,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:44,417 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2023-02-14 03:06:44,417 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,451 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 13 states and 18 transitions. cyclomatic complexity: 8. 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 17 states and 25 transitions. Complement of second has 5 states. [2023-02-14 03:06:44,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:44,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2023-02-14 03:06:44,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-14 03:06:44,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:44,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2023-02-14 03:06:44,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:44,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 4 letters. [2023-02-14 03:06:44,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:44,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 25 transitions. [2023-02-14 03:06:44,458 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 03:06:44,460 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 21 transitions. [2023-02-14 03:06:44,460 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2023-02-14 03:06:44,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2023-02-14 03:06:44,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 21 transitions. [2023-02-14 03:06:44,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:44,461 INFO L218 hiAutomatonCegarLoop]: Abstraction has 15 states and 21 transitions. [2023-02-14 03:06:44,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 21 transitions. [2023-02-14 03:06:44,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 7. [2023-02-14 03:06:44,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:44,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2023-02-14 03:06:44,462 INFO L240 hiAutomatonCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-14 03:06:44,462 INFO L428 stractBuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2023-02-14 03:06:44,462 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-14 03:06:44,462 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2023-02-14 03:06:44,463 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 03:06:44,463 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:44,463 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:44,463 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-14 03:06:44,463 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:44,464 INFO L748 eck$LassoCheckResult]: Stem: 357#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 358#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_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 352#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 353#L20-2 [2023-02-14 03:06:44,464 INFO L750 eck$LassoCheckResult]: Loop: 353#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 354#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 353#L20-2 [2023-02-14 03:06:44,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:44,464 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2023-02-14 03:06:44,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:44,467 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838605149] [2023-02-14 03:06:44,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:44,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:44,475 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:44,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:44,480 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:44,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:44,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2023-02-14 03:06:44,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:44,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008378296] [2023-02-14 03:06:44,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:44,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:44,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:44,486 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:44,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:44,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:44,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:44,490 INFO L85 PathProgramCache]: Analyzing trace with hash 28693991, now seen corresponding path program 3 times [2023-02-14 03:06:44,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:44,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005872091] [2023-02-14 03:06:44,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:44,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:44,494 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:44,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:44,521 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:44,521 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:44,521 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:44,521 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:44,521 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:44,521 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,521 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:44,521 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:44,521 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2023-02-14 03:06:44,521 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:44,521 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:44,522 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,532 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,534 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,536 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,539 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,542 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,595 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:44,595 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:44,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,596 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-14 03:06:44,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:44,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:44,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:44,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,656 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-14 03:06:44,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:44,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:44,773 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:44,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2023-02-14 03:06:44,777 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:44,777 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:44,778 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:44,778 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:44,778 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:44,778 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,778 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:44,778 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:44,778 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration4_Lasso [2023-02-14 03:06:44,778 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:44,778 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:44,779 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,783 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,785 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,786 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,796 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,798 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:44,857 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:44,857 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:44,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,859 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,866 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:44,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-14 03:06:44,874 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:44,874 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:44,874 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:44,874 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:44,874 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:44,874 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:44,874 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:44,876 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:44,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2023-02-14 03:06:44,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,881 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-14 03:06:44,884 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:44,892 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:44,893 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:44,893 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:44,893 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:44,894 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:44,894 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:44,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:44,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2023-02-14 03:06:44,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,912 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-14 03:06:44,915 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:44,922 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:44,922 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:44,922 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:44,922 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:44,922 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:44,922 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:44,923 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:44,932 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:44,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:44,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,941 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,949 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:44,957 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:44,957 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:44,957 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:44,957 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:44,960 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:44,960 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:44,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-14 03:06:44,978 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:44,983 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2023-02-14 03:06:44,983 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:06:44,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:44,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:44,986 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:44,989 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:44,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-14 03:06:45,002 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-14 03:06:45,002 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:45,002 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1, ULTIMATE.start_main_~y1~0#1) = 1*ULTIMATE.start_main_~y2~0#1 - 1*ULTIMATE.start_main_~y1~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2023-02-14 03:06:45,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,012 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-14 03:06:45,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:45,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:45,038 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-14 03:06:45,039 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:45,045 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-14 03:06:45,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:45,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:45,063 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-14 03:06:45,063 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:45,088 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 13 states and 19 transitions. Complement of second has 5 states. [2023-02-14 03:06:45,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:45,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:45,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2023-02-14 03:06:45,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-14 03:06:45,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:45,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 5 letters. Loop has 2 letters. [2023-02-14 03:06:45,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:45,091 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 4 letters. [2023-02-14 03:06:45,091 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:45,092 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 19 transitions. [2023-02-14 03:06:45,093 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 03:06:45,094 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 11 states and 15 transitions. [2023-02-14 03:06:45,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-14 03:06:45,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-14 03:06:45,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 15 transitions. [2023-02-14 03:06:45,094 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-14 03:06:45,094 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 15 transitions. [2023-02-14 03:06:45,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 15 transitions. [2023-02-14 03:06:45,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2023-02-14 03:06:45,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 9 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:45,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2023-02-14 03:06:45,096 INFO L240 hiAutomatonCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-14 03:06:45,096 INFO L428 stractBuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2023-02-14 03:06:45,096 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-14 03:06:45,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 14 transitions. [2023-02-14 03:06:45,099 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2023-02-14 03:06:45,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:06:45,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:06:45,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2023-02-14 03:06:45,101 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:06:45,101 INFO L748 eck$LassoCheckResult]: Stem: 421#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 422#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~y1~0#1, main_~y2~0#1;havoc main_~y1~0#1;havoc main_~y2~0#1;main_~y1~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y2~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 416#L18 assume main_~y1~0#1 > 0 && main_~y2~0#1 > 0; 417#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 419#L20 assume main_~y1~0#1 > main_~y2~0#1;main_~y1~0#1 := main_~y1~0#1 - main_~y2~0#1; 425#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 423#L20 [2023-02-14 03:06:45,101 INFO L750 eck$LassoCheckResult]: Loop: 423#L20 assume !(main_~y1~0#1 > main_~y2~0#1);main_~y2~0#1 := main_~y2~0#1 - main_~y1~0#1; 424#L20-2 assume !!(main_~y1~0#1 != main_~y2~0#1); 423#L20 [2023-02-14 03:06:45,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:45,101 INFO L85 PathProgramCache]: Analyzing trace with hash 889513673, now seen corresponding path program 2 times [2023-02-14 03:06:45,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:45,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940981560] [2023-02-14 03:06:45,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:45,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:45,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:45,109 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:45,112 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:45,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:45,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1564, now seen corresponding path program 2 times [2023-02-14 03:06:45,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:45,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124535802] [2023-02-14 03:06:45,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:45,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:45,117 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:45,119 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:45,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:45,120 INFO L85 PathProgramCache]: Analyzing trace with hash 124148452, now seen corresponding path program 3 times [2023-02-14 03:06:45,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:06:45,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225243409] [2023-02-14 03:06:45,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:06:45,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:06:45,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:45,125 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:06:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:06:45,128 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:06:45,178 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:45,179 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:45,179 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:45,179 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:45,179 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:06:45,179 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,179 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:45,179 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:45,179 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2023-02-14 03:06:45,180 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:45,180 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:45,183 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,186 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,190 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,192 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,204 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,207 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,270 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:45,270 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:06:45,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,273 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-14 03:06:45,282 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:45,282 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:45,289 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:45,290 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:45,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,294 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-14 03:06:45,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:45,297 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:45,309 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:45,309 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:45,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,316 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-14 03:06:45,320 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:45,320 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:45,327 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-14 03:06:45,327 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-14 03:06:45,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,332 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-14 03:06:45,335 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:06:45,335 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:45,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,350 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-14 03:06:45,353 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:06:45,354 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:06:45,494 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:06:45,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2023-02-14 03:06:45,498 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:06:45,498 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:06:45,498 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:06:45,498 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:06:45,498 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:06:45,498 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,498 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:06:45,498 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:06:45,498 INFO L133 ssoRankerPreferences]: Filename of dumped script: BradleyMannaSipma-CAV2005-Fig1.c_Iteration5_Lasso [2023-02-14 03:06:45,498 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:06:45,498 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:06:45,499 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,502 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,504 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,511 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,519 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:06:45,589 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:06:45,589 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:06:45,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,591 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,598 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:45,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-14 03:06:45,605 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:45,606 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:06:45,606 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:45,606 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:45,606 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:45,606 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:06:45,606 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:06:45,607 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:45,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,613 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-14 03:06:45,617 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:45,623 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:45,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:45,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:45,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:45,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:45,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:45,627 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:45,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2023-02-14 03:06:45,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,632 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2023-02-14 03:06:45,635 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:45,642 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:45,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:06:45,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:06:45,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:45,644 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-14 03:06:45,644 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-14 03:06:45,652 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-14 03:06:45,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2023-02-14 03:06:45,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,658 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2023-02-14 03:06:45,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:06:45,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:06:45,668 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2023-02-14 03:06:45,668 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-14 03:06:45,668 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:06:45,675 INFO L401 nArgumentSynthesizer]: We have 20 Motzkin's Theorem applications. [2023-02-14 03:06:45,675 INFO L402 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2023-02-14 03:06:45,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,709 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:06:45,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,731 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2023-02-14 03:06:45,732 INFO L444 ModelExtractionUtils]: 4 out of 16 variables were initially zero. Simplification set additionally 7 variables to zero. [2023-02-14 03:06:45,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:06:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:06:45,735 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:06:45,741 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:06:45,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2023-02-14 03:06:45,768 INFO L438 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2023-02-14 03:06:45,768 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:06:45,768 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y2~0#1) = 1*ULTIMATE.start_main_~y2~0#1 Supporting invariants [1*ULTIMATE.start_main_~y1~0#1 - 1 >= 0] [2023-02-14 03:06:45,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2023-02-14 03:06:45,775 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-14 03:06:45,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:06:45,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:45,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-14 03:06:45,803 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:45,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:06:45,830 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:06:45,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:06:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:06:45,851 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2023-02-14 03:06:45,851 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:45,877 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 14 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 21 states and 29 transitions. Complement of second has 5 states. [2023-02-14 03:06:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-14 03:06:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:06:45,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2023-02-14 03:06:45,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 2 letters. [2023-02-14 03:06:45,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:45,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 2 letters. [2023-02-14 03:06:45,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:45,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 6 letters. Loop has 4 letters. [2023-02-14 03:06:45,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:06:45,879 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 21 states and 29 transitions. [2023-02-14 03:06:45,879 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:06:45,879 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 21 states to 0 states and 0 transitions. [2023-02-14 03:06:45,879 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:06:45,879 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:06:45,880 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:06:45,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:06:45,880 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:45,880 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:45,880 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:06:45,880 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-14 03:06:45,880 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 03:06:45,880 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:06:45,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 03:06:45,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 03:06:45 BoogieIcfgContainer [2023-02-14 03:06:45,892 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 03:06:45,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 03:06:45,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 03:06:45,893 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 03:06:45,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:06:41" (3/4) ... [2023-02-14 03:06:45,896 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 03:06:45,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 03:06:45,897 INFO L158 Benchmark]: Toolchain (without parser) took 5270.49ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 117.6MB in the beginning and 130.4MB in the end (delta: -12.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-02-14 03:06:45,897 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 85.5MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:06:45,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.78ms. Allocated memory is still 146.8MB. Free memory was 117.6MB in the beginning and 108.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:06:45,898 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.39ms. Allocated memory is still 146.8MB. Free memory was 108.6MB in the beginning and 107.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:06:45,898 INFO L158 Benchmark]: Boogie Preprocessor took 16.73ms. Allocated memory is still 146.8MB. Free memory was 107.2MB in the beginning and 106.3MB in the end (delta: 906.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:06:45,898 INFO L158 Benchmark]: RCFGBuilder took 264.72ms. Allocated memory is still 146.8MB. Free memory was 106.3MB in the beginning and 113.9MB in the end (delta: -7.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 03:06:45,899 INFO L158 Benchmark]: BuchiAutomizer took 4780.70ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 113.9MB in the beginning and 130.4MB in the end (delta: -16.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2023-02-14 03:06:45,899 INFO L158 Benchmark]: Witness Printer took 3.49ms. Allocated memory is still 176.2MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:06:45,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 113.2MB. Free memory was 85.7MB in the beginning and 85.5MB in the end (delta: 159.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.78ms. Allocated memory is still 146.8MB. Free memory was 117.6MB in the beginning and 108.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.39ms. Allocated memory is still 146.8MB. Free memory was 108.6MB in the beginning and 107.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.73ms. Allocated memory is still 146.8MB. Free memory was 107.2MB in the beginning and 106.3MB in the end (delta: 906.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.72ms. Allocated memory is still 146.8MB. Free memory was 106.3MB in the beginning and 113.9MB in the end (delta: -7.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4780.70ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 113.9MB in the beginning and 130.4MB in the end (delta: -16.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 3.49ms. Allocated memory is still 176.2MB. Free memory is still 130.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (0 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function y1 + -1 * y2 and consists of 4 locations. One deterministic module has affine ranking function y2 + -1 * y1 and consists of 3 locations. One deterministic module has affine ranking function y2 and consists of 4 locations. One nondeterministic module has affine ranking function y1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 6 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.7s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 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, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 49 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 49 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 65 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 32 mSDtfsCounter, 65 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso5 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf100 lsp63 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf96 smp84 dnf112 smp98 tf100 neg95 sie127 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 111ms VariablesStem: 2 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 20 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 03:06:45,917 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 [2023-02-14 03:06:46,117 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE