./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/GCD3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5317dae Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/GCD3.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 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 04:32:51,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 04:32:51,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 04:32:51,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 04:32:51,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 04:32:51,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 04:32:51,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 04:32:51,854 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 04:32:51,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 04:32:51,859 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 04:32:51,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 04:32:51,862 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 04:32:51,862 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 04:32:51,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 04:32:51,865 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 04:32:51,866 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 04:32:51,866 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 04:32:51,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 04:32:51,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 04:32:51,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 04:32:51,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 04:32:51,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 04:32:51,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 04:32:51,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 04:32:51,881 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 04:32:51,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 04:32:51,881 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 04:32:51,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 04:32:51,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 04:32:51,883 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 04:32:51,884 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 04:32:51,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 04:32:51,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 04:32:51,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 04:32:51,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 04:32:51,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 04:32:51,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 04:32:51,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 04:32:51,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 04:32:51,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 04:32:51,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 04:32:51,890 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-16 04:32:51,920 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 04:32:51,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 04:32:51,922 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 04:32:51,922 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 04:32:51,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 04:32:51,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 04:32:51,924 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 04:32:51,924 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-16 04:32:51,924 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-16 04:32:51,924 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-16 04:32:51,925 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-16 04:32:51,925 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-16 04:32:51,925 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-16 04:32:51,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 04:32:51,926 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-16 04:32:51,926 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 04:32:51,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 04:32:51,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-16 04:32:51,926 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-16 04:32:51,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-16 04:32:51,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 04:32:51,927 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-16 04:32:51,927 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 04:32:51,927 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-16 04:32:51,927 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 04:32:51,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 04:32:51,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 04:32:51,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 04:32:51,929 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-16 04:32:51,929 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88e7c75f540dddcc32c597b87fd18b0ea3baaf188ce55d074253e6818e0cf2b4 [2023-02-16 04:32:52,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 04:32:52,102 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 04:32:52,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 04:32:52,104 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 04:32:52,105 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 04:32:52,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/GCD3.c [2023-02-16 04:32:53,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 04:32:53,449 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 04:32:53,450 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/GCD3.c [2023-02-16 04:32:53,458 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bc8fee0/b84c6dfa0aca467e85fb22e9ea2d7854/FLAGf321dcc74 [2023-02-16 04:32:53,471 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8bc8fee0/b84c6dfa0aca467e85fb22e9ea2d7854 [2023-02-16 04:32:53,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 04:32:53,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 04:32:53,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 04:32:53,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 04:32:53,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 04:32:53,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61dca96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53, skipping insertion in model container [2023-02-16 04:32:53,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 04:32:53,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 04:32:53,577 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:32:53,583 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 04:32:53,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 04:32:53,600 INFO L208 MainTranslator]: Completed translation [2023-02-16 04:32:53,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53 WrapperNode [2023-02-16 04:32:53,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 04:32:53,603 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 04:32:53,603 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 04:32:53,603 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 04:32:53,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,624 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-02-16 04:32:53,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 04:32:53,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 04:32:53,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 04:32:53,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 04:32:53,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,632 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,638 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 04:32:53,645 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 04:32:53,645 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 04:32:53,646 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 04:32:53,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (1/1) ... [2023-02-16 04:32:53,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:53,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:53,669 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:53,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-16 04:32:53,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 04:32:53,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 04:32:53,744 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 04:32:53,745 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 04:32:53,807 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 04:32:53,811 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 04:32:53,811 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-02-16 04:32:53,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:32:53 BoogieIcfgContainer [2023-02-16 04:32:53,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 04:32:53,813 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-16 04:32:53,813 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-16 04:32:53,816 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-16 04:32:53,816 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:32:53,816 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.02 04:32:53" (1/3) ... [2023-02-16 04:32:53,817 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7837d4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:32:53, skipping insertion in model container [2023-02-16 04:32:53,817 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:32:53,817 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 04:32:53" (2/3) ... [2023-02-16 04:32:53,817 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7837d4d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.02 04:32:53, skipping insertion in model container [2023-02-16 04:32:53,818 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-16 04:32:53,818 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:32:53" (3/3) ... [2023-02-16 04:32:53,819 INFO L332 chiAutomizerObserver]: Analyzing ICFG GCD3.c [2023-02-16 04:32:53,865 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-16 04:32:53,866 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-16 04:32:53,866 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-16 04:32:53,866 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-16 04:32:53,866 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-16 04:32:53,866 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-16 04:32:53,866 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-16 04:32:53,866 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-16 04:32:53,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:53,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-16 04:32:53,881 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:53,881 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:53,885 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:32:53,885 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:32:53,885 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-16 04:32:53,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:53,886 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-16 04:32:53,886 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:53,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:53,887 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:32:53,887 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-02-16 04:32:53,892 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 11#L13-2true [2023-02-16 04:32:53,893 INFO L750 eck$LassoCheckResult]: Loop: 11#L13-2true assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 7#L17true assume 0 == main_~y~0#1;main_~y~0#1 := main_~y~0#1; 13#L21-2true assume main_~xtmp~0#1 > 0; 9#L26-2true assume !(main_~xtmp~0#1 >= main_~y~0#1); 15#L26-3true main_~y~0#1 := main_~xtmp~0#1; 4#L25-1true main_~x~0#1 := main_~tmp~0#1; 11#L13-2true [2023-02-16 04:32:53,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:53,897 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-16 04:32:53,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:53,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184002073] [2023-02-16 04:32:53,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:53,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:53,968 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:53,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:53,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:53,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:53,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1216130396, now seen corresponding path program 1 times [2023-02-16 04:32:53,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:53,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778036528] [2023-02-16 04:32:53,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:53,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:54,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:32:54,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:32:54,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778036528] [2023-02-16 04:32:54,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778036528] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:32:54,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:32:54,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:32:54,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119805730] [2023-02-16 04:32:54,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:32:54,060 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:32:54,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:32:54,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:32:54,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:32:54,082 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 14 states have internal predecessors, (23), 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 2.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:54,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:32:54,100 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2023-02-16 04:32:54,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2023-02-16 04:32:54,101 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-16 04:32:54,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 11 states and 14 transitions. [2023-02-16 04:32:54,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2023-02-16 04:32:54,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2023-02-16 04:32:54,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2023-02-16 04:32:54,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:32:54,105 INFO L218 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-16 04:32:54,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2023-02-16 04:32:54,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-02-16 04:32:54,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 10 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) [2023-02-16 04:32:54,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2023-02-16 04:32:54,133 INFO L240 hiAutomatonCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-16 04:32:54,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:32:54,188 INFO L428 stractBuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2023-02-16 04:32:54,188 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-16 04:32:54,188 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2023-02-16 04:32:54,189 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2023-02-16 04:32:54,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:54,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:54,189 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:32:54,190 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:54,190 INFO L748 eck$LassoCheckResult]: Stem: 46#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 47#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 44#L13-2 [2023-02-16 04:32:54,190 INFO L750 eck$LassoCheckResult]: Loop: 44#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 39#L17 assume !(0 == main_~y~0#1); 40#L21 assume !(main_~y~0#1 < 0); 43#L21-2 assume !(main_~xtmp~0#1 > 0); 48#L31-2 assume !(main_~xtmp~0#1 < 0); 49#L31-3 main_~y~0#1 := main_~xtmp~0#1; 45#L25-1 main_~x~0#1 := main_~tmp~0#1; 44#L13-2 [2023-02-16 04:32:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:54,191 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-16 04:32:54,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:54,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767014895] [2023-02-16 04:32:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:54,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,208 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,210 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:54,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:54,210 INFO L85 PathProgramCache]: Analyzing trace with hash -900852200, now seen corresponding path program 1 times [2023-02-16 04:32:54,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:54,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941630065] [2023-02-16 04:32:54,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:54,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:54,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:32:54,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:32:54,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941630065] [2023-02-16 04:32:54,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941630065] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 04:32:54,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 04:32:54,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 04:32:54,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997362706] [2023-02-16 04:32:54,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 04:32:54,257 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-16 04:32:54,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:32:54,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-16 04:32:54,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-16 04:32:54,258 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. cyclomatic complexity: 4 Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 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) [2023-02-16 04:32:54,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:32:54,285 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2023-02-16 04:32:54,285 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 15 transitions. [2023-02-16 04:32:54,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 11 [2023-02-16 04:32:54,286 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 13 states and 15 transitions. [2023-02-16 04:32:54,287 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2023-02-16 04:32:54,288 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2023-02-16 04:32:54,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2023-02-16 04:32:54,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:32:54,288 INFO L218 hiAutomatonCegarLoop]: Abstraction has 13 states and 15 transitions. [2023-02-16 04:32:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2023-02-16 04:32:54,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 9. [2023-02-16 04:32:54,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:54,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2023-02-16 04:32:54,291 INFO L240 hiAutomatonCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-16 04:32:54,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-16 04:32:54,292 INFO L428 stractBuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2023-02-16 04:32:54,293 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-16 04:32:54,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2023-02-16 04:32:54,295 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:32:54,295 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:54,295 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:54,295 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-16 04:32:54,295 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:54,296 INFO L748 eck$LassoCheckResult]: Stem: 76#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 77#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 74#L13-2 [2023-02-16 04:32:54,297 INFO L750 eck$LassoCheckResult]: Loop: 74#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 69#L17 assume !(0 == main_~y~0#1); 70#L21 assume !(main_~y~0#1 < 0); 73#L21-2 assume main_~xtmp~0#1 > 0; 71#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 72#L26-3 main_~y~0#1 := main_~xtmp~0#1; 75#L25-1 main_~x~0#1 := main_~tmp~0#1; 74#L13-2 [2023-02-16 04:32:54,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:54,297 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-02-16 04:32:54,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:54,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056630137] [2023-02-16 04:32:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,303 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:54,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:54,309 INFO L85 PathProgramCache]: Analyzing trace with hash -901313945, now seen corresponding path program 1 times [2023-02-16 04:32:54,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:54,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184234107] [2023-02-16 04:32:54,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:54,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,323 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:54,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:54,336 INFO L85 PathProgramCache]: Analyzing trace with hash 644982885, now seen corresponding path program 1 times [2023-02-16 04:32:54,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:54,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805703262] [2023-02-16 04:32:54,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:54,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:54,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,347 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:54,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:54,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:54,439 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:54,439 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:54,439 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:54,440 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:54,440 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:32:54,440 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:54,440 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:54,440 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:54,441 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2023-02-16 04:32:54,441 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:54,441 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:54,455 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:54,467 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:54,470 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:54,539 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:54,539 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:32:54,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:54,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:54,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:54,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:54,582 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:54,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-16 04:32:54,598 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:32:54,598 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: [] [2023-02-16 04:32:54,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:54,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:54,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:54,607 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:54,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-16 04:32:54,611 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:54,611 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:54,625 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:32:54,625 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:32:54,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:54,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:54,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:54,644 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:54,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-16 04:32:54,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:54,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:54,695 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-02-16 04:32:54,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:54,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:54,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:54,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-16 04:32:54,702 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:32:54,702 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:56,084 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:32:56,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:56,093 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:56,093 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:56,093 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:56,093 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:56,093 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:32:56,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:56,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:56,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration3_Loop [2023-02-16 04:32:56,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:56,093 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:56,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,099 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,102 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,179 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:56,182 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:32:56,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,185 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-16 04:32:56,193 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:32:56,200 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:32:56,200 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:32:56,200 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:32:56,200 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:32:56,203 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:32:56,203 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:32:56,216 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:32:56,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2023-02-16 04:32:56,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,239 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-16 04:32:56,242 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:32:56,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:32:56,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:32:56,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:32:56,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:32:56,251 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:32:56,251 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:32:56,267 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:32:56,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:56,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,289 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-16 04:32:56,318 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:32:56,325 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:32:56,325 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:32:56,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:32:56,326 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:32:56,326 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:32:56,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:32:56,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:32:56,343 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:32:56,346 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-16 04:32:56,347 INFO L444 ModelExtractionUtils]: 4 out of 6 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-16 04:32:56,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,385 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-16 04:32:56,389 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:32:56,389 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:32:56,389 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:32:56,390 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-16 04:32:56,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-02-16 04:32:56,397 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:32:56,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:56,445 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:32:56,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:56,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:32:56,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:56,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:32:56,519 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 4 loop predicates [2023-02-16 04:32:56,520 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:56,560 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand has 6 states, 6 states have (on average 1.5) 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) Result 28 states and 33 transitions. Complement of second has 9 states. [2023-02-16 04:32:56,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-16 04:32:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:56,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2023-02-16 04:32:56,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 7 letters. [2023-02-16 04:32:56,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:56,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 9 letters. Loop has 7 letters. [2023-02-16 04:32:56,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:56,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 14 letters. [2023-02-16 04:32:56,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:56,564 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 33 transitions. [2023-02-16 04:32:56,565 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2023-02-16 04:32:56,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 25 states and 29 transitions. [2023-02-16 04:32:56,566 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-02-16 04:32:56,566 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 18 [2023-02-16 04:32:56,566 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 29 transitions. [2023-02-16 04:32:56,566 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:32:56,566 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-02-16 04:32:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 29 transitions. [2023-02-16 04:32:56,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 22. [2023-02-16 04:32:56,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 21 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2023-02-16 04:32:56,568 INFO L240 hiAutomatonCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-02-16 04:32:56,568 INFO L428 stractBuchiCegarLoop]: Abstraction has 22 states and 25 transitions. [2023-02-16 04:32:56,568 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-02-16 04:32:56,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 25 transitions. [2023-02-16 04:32:56,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:32:56,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:56,569 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:56,569 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:56,570 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:32:56,570 INFO L748 eck$LassoCheckResult]: Stem: 177#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 178#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 179#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 162#L17 assume !(0 == main_~y~0#1); 163#L21 assume !(main_~y~0#1 < 0); 170#L21-2 assume main_~xtmp~0#1 > 0; 166#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 167#L26-2 [2023-02-16 04:32:56,570 INFO L750 eck$LassoCheckResult]: Loop: 167#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 167#L26-2 [2023-02-16 04:32:56,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:56,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1810725014, now seen corresponding path program 1 times [2023-02-16 04:32:56,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:56,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338123275] [2023-02-16 04:32:56,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:56,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:56,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:56,576 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:56,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:56,579 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:56,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 1 times [2023-02-16 04:32:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:56,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353906949] [2023-02-16 04:32:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:56,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:56,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:56,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:56,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:56,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:56,583 INFO L85 PathProgramCache]: Analyzing trace with hash 297900620, now seen corresponding path program 2 times [2023-02-16 04:32:56,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:56,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220080495] [2023-02-16 04:32:56,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:56,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:56,587 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:56,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:56,639 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:56,639 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:56,640 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:56,640 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:56,640 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:32:56,640 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,641 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:56,641 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:56,641 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2023-02-16 04:32:56,641 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:56,641 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:56,642 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,644 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,653 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,654 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,656 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,658 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,699 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:56,699 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:32:56,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,701 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2023-02-16 04:32:56,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-16 04:32:56,724 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:56,724 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:56,744 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:32:56,744 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:32:56,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:56,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,756 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,759 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2023-02-16 04:32:56,760 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:56,760 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:56,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:56,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,779 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2023-02-16 04:32:56,783 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:32:56,783 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:56,901 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:32:56,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:56,906 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:56,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:56,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:56,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:56,906 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:32:56,906 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,906 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:56,906 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:56,906 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration4_Lasso [2023-02-16 04:32:56,906 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:56,906 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:56,908 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,919 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,929 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,931 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,933 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,935 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:56,979 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:56,979 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:32:56,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:56,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:56,980 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:56,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2023-02-16 04:32:56,997 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:32:57,004 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:32:57,004 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:32:57,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:32:57,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:32:57,006 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:32:57,006 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:32:57,021 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:32:57,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:57,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:57,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:57,041 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:57,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:32:57,059 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:32:57,059 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:32:57,059 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:32:57,059 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:32:57,062 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:32:57,062 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:32:57,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2023-02-16 04:32:57,074 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:32:57,080 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-16 04:32:57,080 INFO L444 ModelExtractionUtils]: 5 out of 16 variables were initially zero. Simplification set additionally 3 variables to zero. [2023-02-16 04:32:57,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:57,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:57,082 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:57,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2023-02-16 04:32:57,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:32:57,131 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 2. [2023-02-16 04:32:57,132 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:32:57,132 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~x~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 + 1*ULTIMATE.start_main_~x~0#1 - 2*ULTIMATE.start_main_~y~0#1 Supporting invariants [1*ULTIMATE.start_main_~x~0#1 - 1 >= 0, 1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-02-16 04:32:57,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:57,141 INFO L156 tatePredicateManager]: 0 out of 2 supporting invariants were superfluous and have been removed [2023-02-16 04:32:57,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:57,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:57,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-16 04:32:57,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:57,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:57,205 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:32:57,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:57,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:32:57,206 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 [2023-02-16 04:32:57,206 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5 Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:57,241 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 25 transitions. cyclomatic complexity: 5. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 26 states and 32 transitions. Complement of second has 6 states. [2023-02-16 04:32:57,250 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 [2023-02-16 04:32:57,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:57,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2023-02-16 04:32:57,251 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 1 letters. [2023-02-16 04:32:57,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:57,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 1 letters. [2023-02-16 04:32:57,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:57,252 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2023-02-16 04:32:57,252 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:57,252 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2023-02-16 04:32:57,253 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:32:57,254 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 25 states and 30 transitions. [2023-02-16 04:32:57,255 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2023-02-16 04:32:57,255 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2023-02-16 04:32:57,255 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 30 transitions. [2023-02-16 04:32:57,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:32:57,255 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 30 transitions. [2023-02-16 04:32:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 30 transitions. [2023-02-16 04:32:57,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2023-02-16 04:32:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.2083333333333333) internal successors, (29), 23 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:57,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2023-02-16 04:32:57,258 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-02-16 04:32:57,258 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-02-16 04:32:57,258 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-02-16 04:32:57,258 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 29 transitions. [2023-02-16 04:32:57,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-02-16 04:32:57,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:57,259 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:57,260 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:57,261 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:57,261 INFO L748 eck$LassoCheckResult]: Stem: 284#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 285#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 287#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 268#L17 assume !(0 == main_~y~0#1); 269#L21 assume !(main_~y~0#1 < 0); 276#L21-2 assume main_~xtmp~0#1 > 0; 272#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 273#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 275#L26-3 [2023-02-16 04:32:57,261 INFO L750 eck$LassoCheckResult]: Loop: 275#L26-3 main_~y~0#1 := main_~xtmp~0#1; 281#L25-1 main_~x~0#1 := main_~tmp~0#1; 278#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 279#L17 assume !(0 == main_~y~0#1); 291#L21 assume !(main_~y~0#1 < 0); 290#L21-2 assume main_~xtmp~0#1 > 0; 289#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 275#L26-3 [2023-02-16 04:32:57,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:57,262 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 1 times [2023-02-16 04:32:57,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:57,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167992091] [2023-02-16 04:32:57,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:57,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:57,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:57,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:57,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:57,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1601495771, now seen corresponding path program 2 times [2023-02-16 04:32:57,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:57,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991934722] [2023-02-16 04:32:57,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:57,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:57,299 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:57,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:57,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:57,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170556, now seen corresponding path program 1 times [2023-02-16 04:32:57,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:57,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470335011] [2023-02-16 04:32:57,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:57,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:57,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:32:57,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 04:32:57,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470335011] [2023-02-16 04:32:57,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470335011] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 04:32:57,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557803753] [2023-02-16 04:32:57,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:57,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 04:32:57,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:57,470 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-16 04:32:57,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-16 04:32:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:57,518 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-16 04:32:57,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:57,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:32:57,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 04:32:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:32:57,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557803753] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 04:32:57,625 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-16 04:32:57,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2023-02-16 04:32:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141281871] [2023-02-16 04:32:57,625 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-16 04:32:57,663 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:57,663 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:57,663 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:57,663 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:57,663 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:32:57,663 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:57,663 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:57,663 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:57,663 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2023-02-16 04:32:57,663 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:57,663 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:57,664 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:57,675 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:57,678 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:57,721 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:57,722 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:32:57,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:57,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:57,724 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) [2023-02-16 04:32:57,725 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 [2023-02-16 04:32:57,747 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:57,747 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:57,771 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 [2023-02-16 04:32:57,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:57,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:57,773 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:57,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2023-02-16 04:32:57,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:32:57,776 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:58,682 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:32:58,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2023-02-16 04:32:58,688 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:58,688 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:58,688 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:58,688 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:58,688 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:32:58,688 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:58,688 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:58,688 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:58,688 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration5_Loop [2023-02-16 04:32:58,688 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:58,688 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:58,689 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:58,713 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:58,716 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:58,758 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:58,758 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:32:58,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:58,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:58,759 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:58,779 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:32:58,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2023-02-16 04:32:58,786 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:32:58,786 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:32:58,786 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:32:58,786 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:32:58,786 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:32:58,788 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:32:58,788 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:32:58,802 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:32:58,805 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:32:58,805 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:32:58,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:58,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:58,808 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:58,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2023-02-16 04:32:58,811 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:32:58,812 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:32:58,812 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:32:58,812 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2023-02-16 04:32:58,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:58,818 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:32:58,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:58,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:58,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:32:58,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:58,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:32:58,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:32:58,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:32:58,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:32:58,895 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:32:58,896 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8 Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:58,934 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 29 transitions. cyclomatic complexity: 8. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 59 states and 73 transitions. Complement of second has 8 states. [2023-02-16 04:32:58,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2023-02-16 04:32:58,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:58,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-02-16 04:32:58,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 7 letters. [2023-02-16 04:32:58,936 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:58,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 15 letters. Loop has 7 letters. [2023-02-16 04:32:58,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:58,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 8 letters. Loop has 14 letters. [2023-02-16 04:32:58,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:32:58,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 59 states and 73 transitions. [2023-02-16 04:32:58,939 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-16 04:32:58,941 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 59 states to 54 states and 68 transitions. [2023-02-16 04:32:58,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-02-16 04:32:58,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2023-02-16 04:32:58,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 68 transitions. [2023-02-16 04:32:58,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:32:58,942 INFO L218 hiAutomatonCegarLoop]: Abstraction has 54 states and 68 transitions. [2023-02-16 04:32:58,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states and 68 transitions. [2023-02-16 04:32:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 47. [2023-02-16 04:32:58,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 46 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:58,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 59 transitions. [2023-02-16 04:32:58,946 INFO L240 hiAutomatonCegarLoop]: Abstraction has 47 states and 59 transitions. [2023-02-16 04:32:58,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 04:32:58,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 04:32:58,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-16 04:32:58,948 INFO L87 Difference]: Start difference. First operand 47 states and 59 transitions. Second operand has 11 states, 10 states have (on average 2.8) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:59,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 04:32:59,041 INFO L93 Difference]: Finished difference Result 50 states and 59 transitions. [2023-02-16 04:32:59,041 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 50 states and 59 transitions. [2023-02-16 04:32:59,042 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-16 04:32:59,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 50 states to 31 states and 37 transitions. [2023-02-16 04:32:59,042 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 24 [2023-02-16 04:32:59,042 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 29 [2023-02-16 04:32:59,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 37 transitions. [2023-02-16 04:32:59,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:32:59,042 INFO L218 hiAutomatonCegarLoop]: Abstraction has 31 states and 37 transitions. [2023-02-16 04:32:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states and 37 transitions. [2023-02-16 04:32:59,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2023-02-16 04:32:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 23 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:32:59,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2023-02-16 04:32:59,045 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-16 04:32:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-16 04:32:59,045 INFO L428 stractBuchiCegarLoop]: Abstraction has 24 states and 28 transitions. [2023-02-16 04:32:59,045 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2023-02-16 04:32:59,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 28 transitions. [2023-02-16 04:32:59,046 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2023-02-16 04:32:59,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:32:59,046 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:32:59,046 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:59,047 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 04:32:59,047 INFO L748 eck$LassoCheckResult]: Stem: 636#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 637#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 639#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 645#L17 assume !(0 == main_~y~0#1); 644#L21 assume !(main_~y~0#1 < 0); 643#L21-2 assume main_~xtmp~0#1 > 0; 642#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 641#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 630#L26-3 [2023-02-16 04:32:59,047 INFO L750 eck$LassoCheckResult]: Loop: 630#L26-3 main_~y~0#1 := main_~xtmp~0#1; 640#L25-1 main_~x~0#1 := main_~tmp~0#1; 632#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 633#L17 assume !(0 == main_~y~0#1); 648#L21 assume !(main_~y~0#1 < 0); 638#L21-2 assume main_~xtmp~0#1 > 0; 627#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 628#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 630#L26-3 [2023-02-16 04:32:59,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:59,056 INFO L85 PathProgramCache]: Analyzing trace with hash 297900618, now seen corresponding path program 2 times [2023-02-16 04:32:59,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:59,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730630430] [2023-02-16 04:32:59,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:59,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:59,059 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:59,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:59,068 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 [2023-02-16 04:32:59,068 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:59,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:59,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1893238745, now seen corresponding path program 1 times [2023-02-16 04:32:59,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:59,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034397995] [2023-02-16 04:32:59,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:59,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:59,076 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:59,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:59,079 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:59,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:32:59,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1545352926, now seen corresponding path program 2 times [2023-02-16 04:32:59,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:32:59,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078123163] [2023-02-16 04:32:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:32:59,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:32:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:59,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:32:59,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:32:59,095 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:32:59,130 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:32:59,130 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:32:59,130 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:32:59,130 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:32:59,130 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:32:59,130 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:59,130 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:32:59,131 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:32:59,131 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2023-02-16 04:32:59,131 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:32:59,131 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:32:59,131 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:59,134 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:59,142 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:32:59,183 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:32:59,183 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:32:59,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:59,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:59,185 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:59,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2023-02-16 04:32:59,221 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:59,221 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:59,242 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:32:59,242 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:32:59,246 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:59,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:59,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:59,247 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:59,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2023-02-16 04:32:59,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:32:59,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:32:59,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2023-02-16 04:32:59,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:32:59,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:32:59,276 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:32:59,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2023-02-16 04:32:59,280 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:32:59,280 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,084 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:00,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,090 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:00,090 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:00,090 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:00,090 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:00,090 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:00,090 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,090 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:00,090 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:00,090 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration6_Loop [2023-02-16 04:33:00,090 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:00,090 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:00,091 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,095 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,097 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,168 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:00,168 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:00,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,169 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2023-02-16 04:33:00,173 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,179 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,179 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,179 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,179 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,180 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:00,180 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:00,195 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:00,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,221 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2023-02-16 04:33:00,225 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,231 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,231 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,231 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,231 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,232 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:00,232 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:00,238 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:00,242 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,243 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2023-02-16 04:33:00,246 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,253 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,253 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:00,253 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,253 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,253 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:00,254 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:00,264 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:00,267 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-16 04:33:00,267 INFO L444 ModelExtractionUtils]: 3 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-16 04:33:00,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,268 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2023-02-16 04:33:00,272 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:00,272 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-16 04:33:00,272 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:00,272 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1) = 1*ULTIMATE.start_main_~xtmp~0#1 Supporting invariants [] [2023-02-16 04:33:00,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2023-02-16 04:33:00,276 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-16 04:33:00,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:00,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-16 04:33:00,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:00,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:00,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:00,343 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 04:33:00,344 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-16 04:33:00,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6 Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:00,366 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 28 transitions. cyclomatic complexity: 6. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 46 states and 55 transitions. Complement of second has 6 states. [2023-02-16 04:33:00,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-16 04:33:00,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:00,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2023-02-16 04:33:00,367 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 8 letters. [2023-02-16 04:33:00,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:00,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 16 letters. Loop has 8 letters. [2023-02-16 04:33:00,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:00,368 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 8 letters. Loop has 16 letters. [2023-02-16 04:33:00,368 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:00,368 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 55 transitions. [2023-02-16 04:33:00,369 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:33:00,369 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 38 states and 46 transitions. [2023-02-16 04:33:00,369 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2023-02-16 04:33:00,369 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2023-02-16 04:33:00,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 46 transitions. [2023-02-16 04:33:00,369 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2023-02-16 04:33:00,369 INFO L218 hiAutomatonCegarLoop]: Abstraction has 38 states and 46 transitions. [2023-02-16 04:33:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states and 46 transitions. [2023-02-16 04:33:00,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2023-02-16 04:33:00,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 29 states have (on average 1.206896551724138) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:00,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-02-16 04:33:00,370 INFO L240 hiAutomatonCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-16 04:33:00,371 INFO L428 stractBuchiCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-16 04:33:00,371 INFO L335 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2023-02-16 04:33:00,371 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 35 transitions. [2023-02-16 04:33:00,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-16 04:33:00,371 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-16 04:33:00,371 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-16 04:33:00,371 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-16 04:33:00,371 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-16 04:33:00,371 INFO L748 eck$LassoCheckResult]: Stem: 778#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 779#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~x~0#1, main_~y~0#1, main_~tmp~0#1, main_~xtmp~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~tmp~0#1;havoc main_~xtmp~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 782#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 795#L17 assume !(0 == main_~y~0#1); 794#L21 assume !(main_~y~0#1 < 0); 792#L21-2 assume main_~xtmp~0#1 > 0; 790#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 787#L26-2 assume !(main_~xtmp~0#1 >= main_~y~0#1); 785#L26-3 main_~y~0#1 := main_~xtmp~0#1; 780#L25-1 main_~x~0#1 := main_~tmp~0#1; 776#L13-2 assume !!(main_~y~0#1 > 0 && main_~x~0#1 > 0);main_~tmp~0#1 := main_~y~0#1;main_~xtmp~0#1 := main_~x~0#1; 767#L17 assume !(0 == main_~y~0#1); 768#L21 assume !(main_~y~0#1 < 0); 774#L21-2 assume main_~xtmp~0#1 > 0; 771#L26-2 [2023-02-16 04:33:00,371 INFO L750 eck$LassoCheckResult]: Loop: 771#L26-2 assume !!(main_~xtmp~0#1 >= main_~y~0#1);main_~xtmp~0#1 := main_~xtmp~0#1 - main_~y~0#1; 771#L26-2 [2023-02-16 04:33:00,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:00,372 INFO L85 PathProgramCache]: Analyzing trace with hash 186101220, now seen corresponding path program 3 times [2023-02-16 04:33:00,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:00,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044799109] [2023-02-16 04:33:00,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:00,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:00,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:00,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:00,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:00,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:00,380 INFO L85 PathProgramCache]: Analyzing trace with hash 65, now seen corresponding path program 2 times [2023-02-16 04:33:00,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:00,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349361672] [2023-02-16 04:33:00,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:00,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:00,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:00,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:00,382 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:00,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:00,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1474170558, now seen corresponding path program 4 times [2023-02-16 04:33:00,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 04:33:00,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961192381] [2023-02-16 04:33:00,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 04:33:00,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 04:33:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:00,386 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-16 04:33:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-16 04:33:00,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-16 04:33:00,436 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:00,436 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:00,436 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:00,436 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:00,436 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-16 04:33:00,436 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,436 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:00,436 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:00,436 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2023-02-16 04:33:00,436 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:00,436 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:00,437 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,438 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,440 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,442 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,445 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,487 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:00,487 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-16 04:33:00,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,489 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2023-02-16 04:33:00,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:00,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,499 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:00,500 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: [] [2023-02-16 04:33:00,503 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 [2023-02-16 04:33:00,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,504 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2023-02-16 04:33:00,507 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:00,507 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,523 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:00,523 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: [] [2023-02-16 04:33:00,526 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 [2023-02-16 04:33:00,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,527 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2023-02-16 04:33:00,531 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:00,531 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,538 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:00,538 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:33:00,543 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 [2023-02-16 04:33:00,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,545 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2023-02-16 04:33:00,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:00,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,556 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:00,556 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: [] [2023-02-16 04:33:00,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,563 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2023-02-16 04:33:00,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:00,566 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,577 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-16 04:33:00,577 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-16 04:33:00,582 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 [2023-02-16 04:33:00,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,584 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2023-02-16 04:33:00,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-16 04:33:00,587 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,604 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 [2023-02-16 04:33:00,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,605 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2023-02-16 04:33:00,609 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-16 04:33:00,609 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-16 04:33:00,725 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-16 04:33:00,729 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 [2023-02-16 04:33:00,729 INFO L210 LassoAnalysis]: Preferences: [2023-02-16 04:33:00,729 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-16 04:33:00,729 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-16 04:33:00,729 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-16 04:33:00,729 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-16 04:33:00,729 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,729 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-16 04:33:00,729 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-16 04:33:00,729 INFO L133 ssoRankerPreferences]: Filename of dumped script: GCD3.c_Iteration7_Lasso [2023-02-16 04:33:00,729 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-16 04:33:00,729 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-16 04:33:00,730 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,741 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,746 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,747 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-16 04:33:00,796 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-16 04:33:00,796 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-16 04:33:00,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,797 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2023-02-16 04:33:00,801 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,807 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,807 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,807 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,809 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:00,809 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:00,823 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:00,832 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 [2023-02-16 04:33:00,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,834 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2023-02-16 04:33:00,851 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,857 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,857 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:00,857 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,857 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,857 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,858 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:00,858 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:00,859 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:00,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,865 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2023-02-16 04:33:00,869 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,889 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,889 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,889 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,891 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:00,891 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:00,907 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:00,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,914 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,941 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:00,947 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:00,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:00,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:00,948 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:00,948 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:00,948 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:00,948 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:00,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2023-02-16 04:33:00,959 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:00,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:00,963 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:00,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2023-02-16 04:33:01,016 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:01,022 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:01,022 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-16 04:33:01,022 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:01,022 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:01,022 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:01,022 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-16 04:33:01,022 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-16 04:33:01,031 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-16 04:33:01,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:01,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:01,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:01,036 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:01,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2023-02-16 04:33:01,041 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-16 04:33:01,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-16 04:33:01,047 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-16 04:33:01,047 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-16 04:33:01,047 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-16 04:33:01,050 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-16 04:33:01,050 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-16 04:33:01,065 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-16 04:33:01,071 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2023-02-16 04:33:01,071 INFO L444 ModelExtractionUtils]: 8 out of 16 variables were initially zero. Simplification set additionally 2 variables to zero. [2023-02-16 04:33:01,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-16 04:33:01,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 04:33:01,089 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-16 04:33:01,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2023-02-16 04:33:01,093 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-16 04:33:01,100 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2023-02-16 04:33:01,100 INFO L513 LassoAnalysis]: Proved termination. [2023-02-16 04:33:01,100 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~xtmp~0#1, ULTIMATE.start_main_~y~0#1) = 2*ULTIMATE.start_main_~xtmp~0#1 - 2*ULTIMATE.start_main_~y~0#1 + 1 Supporting invariants [1*ULTIMATE.start_main_~y~0#1 - 1 >= 0] [2023-02-16 04:33:01,106 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 [2023-02-16 04:33:01,107 INFO L156 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2023-02-16 04:33:01,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:01,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:33:01,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:01,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:01,170 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:01,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:01,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:01,171 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 [2023-02-16 04:33:01,171 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:01,192 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2023-02-16 04:33:01,194 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 [2023-02-16 04:33:01,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:01,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-16 04:33:01,194 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2023-02-16 04:33:01,194 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:01,195 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:01,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:01,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:33:01,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:01,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:01,241 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:01,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:01,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:01,242 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 [2023-02-16 04:33:01,242 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:01,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:01,269 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:01,283 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 31 states and 38 transitions. Complement of second has 6 states. [2023-02-16 04:33:01,284 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 [2023-02-16 04:33:01,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2023-02-16 04:33:01,285 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 14 letters. Loop has 1 letters. [2023-02-16 04:33:01,285 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:01,285 INFO L681 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2023-02-16 04:33:01,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 04:33:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:01,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-16 04:33:01,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 04:33:01,331 WARN L261 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-16 04:33:01,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 04:33:01,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-16 04:33:01,332 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 [2023-02-16 04:33:01,332 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:01,351 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 35 transitions. cyclomatic complexity: 9. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 33 states and 40 transitions. Complement of second has 5 states. [2023-02-16 04:33:01,351 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 [2023-02-16 04:33:01,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-16 04:33:01,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2023-02-16 04:33:01,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 1 letters. [2023-02-16 04:33:01,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:01,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 15 letters. Loop has 1 letters. [2023-02-16 04:33:01,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:01,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 14 letters. Loop has 2 letters. [2023-02-16 04:33:01,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-16 04:33:01,352 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 40 transitions. [2023-02-16 04:33:01,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:33:01,353 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 0 states and 0 transitions. [2023-02-16 04:33:01,353 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-16 04:33:01,353 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-16 04:33:01,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-16 04:33:01,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-16 04:33:01,353 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:01,353 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:01,353 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 04:33:01,353 INFO L335 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2023-02-16 04:33:01,353 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-16 04:33:01,353 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-16 04:33:01,353 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-16 04:33:01,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.02 04:33:01 BoogieIcfgContainer [2023-02-16 04:33:01,358 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-16 04:33:01,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 04:33:01,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 04:33:01,359 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 04:33:01,359 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 04:32:53" (3/4) ... [2023-02-16 04:33:01,361 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-16 04:33:01,361 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 04:33:01,361 INFO L158 Benchmark]: Toolchain (without parser) took 7887.61ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 101.6MB in the beginning and 122.8MB in the end (delta: -21.2MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2023-02-16 04:33:01,361 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 106.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:01,362 INFO L158 Benchmark]: CACSL2BoogieTranslator took 126.32ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 92.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 04:33:01,362 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.42ms. Allocated memory is still 138.4MB. Free memory was 92.3MB in the beginning and 90.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:01,362 INFO L158 Benchmark]: Boogie Preprocessor took 20.12ms. Allocated memory is still 138.4MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 04:33:01,362 INFO L158 Benchmark]: RCFGBuilder took 167.23ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 80.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 04:33:01,362 INFO L158 Benchmark]: BuchiAutomizer took 7545.11ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 80.8MB in the beginning and 123.8MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:01,362 INFO L158 Benchmark]: Witness Printer took 2.27ms. Allocated memory is still 167.8MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 04:33:01,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 138.4MB. Free memory is still 106.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 126.32ms. Allocated memory is still 138.4MB. Free memory was 101.6MB in the beginning and 92.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.42ms. Allocated memory is still 138.4MB. Free memory was 92.3MB in the beginning and 90.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.12ms. Allocated memory is still 138.4MB. Free memory was 90.8MB in the beginning and 89.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 167.23ms. Allocated memory is still 138.4MB. Free memory was 89.8MB in the beginning and 80.8MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 7545.11ms. Allocated memory was 138.4MB in the beginning and 167.8MB in the end (delta: 29.4MB). Free memory was 80.8MB in the beginning and 123.8MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.27ms. Allocated memory is still 167.8MB. Free memory is still 122.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 8 terminating modules (3 trivial, 4 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function 2 * xtmp + x + -2 * y and consists of 4 locations. One deterministic module has affine ranking function xtmp and consists of 5 locations. One deterministic module has affine ranking function xtmp and consists of 4 locations. One nondeterministic module has affine ranking function 2 * xtmp + -2 * y + 1 and consists of 4 locations. 3 modules have a trivial ranking function, the largest among these consists of 11 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 8 iterations. TraceHistogramMax:2. Analysis of lassos took 6.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 31 StatesRemovedByMinimization, 6 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: 1/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 125 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 122 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 29 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 199 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 66 mSDtfsCounter, 199 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp65 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf90 smp100 dnf100 smp100 tf103 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 9 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 3.7s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-16 04:33:01,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-16 04:33:01,578 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