./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.14.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/b.14.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 e0029e4ef6d93314dd28a1b067e9a0f7a5ca34b8281e95ccf7b3ad64c7537db6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 09:00:20,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 09:00:20,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 09:00:20,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 09:00:20,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 09:00:20,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 09:00:20,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 09:00:20,824 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 09:00:20,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 09:00:20,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 09:00:20,833 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 09:00:20,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 09:00:20,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 09:00:20,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 09:00:20,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 09:00:20,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 09:00:20,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 09:00:20,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 09:00:20,843 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 09:00:20,845 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 09:00:20,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 09:00:20,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 09:00:20,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 09:00:20,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 09:00:20,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 09:00:20,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 09:00:20,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 09:00:20,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 09:00:20,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 09:00:20,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 09:00:20,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 09:00:20,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 09:00:20,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 09:00:20,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 09:00:20,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 09:00:20,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 09:00:20,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 09:00:20,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 09:00:20,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 09:00:20,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 09:00:20,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 09:00:20,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 09:00:20,905 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 09:00:20,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 09:00:20,906 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 09:00:20,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 09:00:20,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 09:00:20,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 09:00:20,908 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 09:00:20,908 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 09:00:20,908 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 09:00:20,908 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 09:00:20,909 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 09:00:20,910 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 09:00:20,910 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 09:00:20,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 09:00:20,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 09:00:20,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 09:00:20,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 09:00:20,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 09:00:20,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 09:00:20,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 09:00:20,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 09:00:20,911 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 09:00:20,912 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 09:00:20,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 09:00:20,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 09:00:20,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 09:00:20,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 09:00:20,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 09:00:20,915 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 09:00:20,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0029e4ef6d93314dd28a1b067e9a0f7a5ca34b8281e95ccf7b3ad64c7537db6 [2023-02-18 09:00:21,205 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 09:00:21,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 09:00:21,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 09:00:21,247 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 09:00:21,247 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 09:00:21,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.14.c [2023-02-18 09:00:22,496 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 09:00:22,646 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 09:00:22,646 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.14.c [2023-02-18 09:00:22,651 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cb3623e/21f37f17afe8459b83f2e578a11eea79/FLAG5cab33a99 [2023-02-18 09:00:22,665 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56cb3623e/21f37f17afe8459b83f2e578a11eea79 [2023-02-18 09:00:22,668 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 09:00:22,670 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 09:00:22,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 09:00:22,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 09:00:22,675 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 09:00:22,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1d89a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22, skipping insertion in model container [2023-02-18 09:00:22,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 09:00:22,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 09:00:22,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 09:00:22,816 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 09:00:22,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 09:00:22,836 INFO L208 MainTranslator]: Completed translation [2023-02-18 09:00:22,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22 WrapperNode [2023-02-18 09:00:22,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 09:00:22,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 09:00:22,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 09:00:22,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 09:00:22,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,868 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-02-18 09:00:22,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 09:00:22,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 09:00:22,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 09:00:22,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 09:00:22,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,884 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,884 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 09:00:22,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 09:00:22,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 09:00:22,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 09:00:22,888 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (1/1) ... [2023-02-18 09:00:22,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:22,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:22,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:22,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-18 09:00:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 09:00:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 09:00:23,073 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 09:00:23,075 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 09:00:23,155 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 09:00:23,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 09:00:23,160 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-18 09:00:23,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:00:23 BoogieIcfgContainer [2023-02-18 09:00:23,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 09:00:23,162 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 09:00:23,163 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 09:00:23,166 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 09:00:23,167 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 09:00:23,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 09:00:22" (1/3) ... [2023-02-18 09:00:23,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c76d6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 09:00:23, skipping insertion in model container [2023-02-18 09:00:23,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 09:00:23,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 09:00:22" (2/3) ... [2023-02-18 09:00:23,170 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c76d6a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 09:00:23, skipping insertion in model container [2023-02-18 09:00:23,170 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 09:00:23,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:00:23" (3/3) ... [2023-02-18 09:00:23,171 INFO L332 chiAutomizerObserver]: Analyzing ICFG b.14.c [2023-02-18 09:00:23,255 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 09:00:23,255 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 09:00:23,255 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 09:00:23,256 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 09:00:23,256 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 09:00:23,256 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 09:00:23,256 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 09:00:23,256 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 09:00:23,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 09:00:23,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 09:00:23,288 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 09:00:23,289 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 09:00:23,293 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 09:00:23,293 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 09:00:23,294 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 09:00:23,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 09:00:23,296 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-18 09:00:23,296 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 09:00:23,296 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 09:00:23,297 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 09:00:23,297 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-18 09:00:23,304 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 4#L12-3true [2023-02-18 09:00:23,305 INFO L750 eck$LassoCheckResult]: Loop: 4#L12-3true assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > 0); 2#L12-2true assume !(main_~y~0#1 > 0); 4#L12-3true [2023-02-18 09:00:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 09:00:23,317 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-18 09:00:23,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 09:00:23,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551910652] [2023-02-18 09:00:23,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 09:00:23,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 09:00:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,411 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 09:00:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,443 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 09:00:23,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 09:00:23,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2023-02-18 09:00:23,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 09:00:23,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625637278] [2023-02-18 09:00:23,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 09:00:23,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 09:00:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 09:00:23,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 09:00:23,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 09:00:23,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625637278] [2023-02-18 09:00:23,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625637278] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 09:00:23,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 09:00:23,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-18 09:00:23,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274584555] [2023-02-18 09:00:23,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 09:00:23,536 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-18 09:00:23,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 09:00:23,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 09:00:23,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 09:00:23,564 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 09:00:23,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 09:00:23,582 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-02-18 09:00:23,583 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-18 09:00:23,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-18 09:00:23,587 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2023-02-18 09:00:23,588 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-18 09:00:23,589 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-18 09:00:23,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2023-02-18 09:00:23,590 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 09:00:23,590 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-18 09:00:23,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2023-02-18 09:00:23,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-18 09:00:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 09:00:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2023-02-18 09:00:23,613 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-18 09:00:23,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 09:00:23,618 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-18 09:00:23,619 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-18 09:00:23,619 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2023-02-18 09:00:23,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-18 09:00:23,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 09:00:23,620 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 09:00:23,620 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 09:00:23,620 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-18 09:00:23,620 INFO L748 eck$LassoCheckResult]: Stem: 29#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~c~0#1, main_~x~0#1, main_~y~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~c~0#1 := 0; 28#L12-3 [2023-02-18 09:00:23,621 INFO L750 eck$LassoCheckResult]: Loop: 28#L12-3 assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > 0); 26#L12-2 assume !!(main_~y~0#1 > 0);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1;main_~c~0#1 := 1 + main_~c~0#1; 27#L12-2 assume !(main_~y~0#1 > 0); 28#L12-3 [2023-02-18 09:00:23,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 09:00:23,621 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-18 09:00:23,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 09:00:23,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937739508] [2023-02-18 09:00:23,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 09:00:23,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 09:00:23,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,627 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 09:00:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,631 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 09:00:23,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 09:00:23,632 INFO L85 PathProgramCache]: Analyzing trace with hash 41000, now seen corresponding path program 1 times [2023-02-18 09:00:23,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 09:00:23,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558518603] [2023-02-18 09:00:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 09:00:23,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 09:00:23,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,643 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 09:00:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,649 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 09:00:23,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 09:00:23,650 INFO L85 PathProgramCache]: Analyzing trace with hash 28699942, now seen corresponding path program 1 times [2023-02-18 09:00:23,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 09:00:23,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647152385] [2023-02-18 09:00:23,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 09:00:23,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 09:00:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,665 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 09:00:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 09:00:23,677 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 09:00:23,710 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 09:00:23,711 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 09:00:23,711 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 09:00:23,716 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 09:00:23,716 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 09:00:23,717 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:23,717 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 09:00:23,717 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 09:00:23,717 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14.c_Iteration2_Loop [2023-02-18 09:00:23,717 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 09:00:23,718 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 09:00:23,742 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,758 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,760 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,763 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,784 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 09:00:23,785 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 09:00:23,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:23,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:23,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:23,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-18 09:00:23,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 09:00:23,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 09:00:23,822 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 09:00:23,822 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 09:00:23,829 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 [2023-02-18 09:00:23,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:23,830 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:23,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:23,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-18 09:00:23,843 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 09:00:23,843 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 09:00:23,861 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 09:00:23,861 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 09:00:23,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-18 09:00:23,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:23,869 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:23,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-18 09:00:23,877 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 09:00:23,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 09:00:23,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-18 09:00:23,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:23,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:23,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:23,938 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 09:00:23,938 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 09:00:23,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-18 09:00:23,972 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 09:00:23,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-02-18 09:00:23,977 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 09:00:23,977 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 09:00:23,977 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 09:00:23,977 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 09:00:23,977 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 09:00:23,977 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:23,977 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 09:00:23,977 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 09:00:23,977 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.14.c_Iteration2_Loop [2023-02-18 09:00:23,977 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 09:00:23,977 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 09:00:23,980 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,985 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,987 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:23,992 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 09:00:24,005 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 09:00:24,009 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 09:00:24,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:24,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:24,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:24,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-18 09:00:24,016 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 [2023-02-18 09:00:24,023 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 09:00:24,023 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 09:00:24,023 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 09:00:24,023 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 09:00:24,027 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 09:00:24,028 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 09:00:24,065 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 09:00:24,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-18 09:00:24,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:24,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:24,078 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:24,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-18 09:00:24,082 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 09:00:24,090 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 09:00:24,090 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 09:00:24,090 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 09:00:24,090 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 09:00:24,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 09:00:24,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 09:00:24,111 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 09:00:24,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-18 09:00:24,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:24,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:24,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:24,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-18 09:00:24,123 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-18 09:00:24,130 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 09:00:24,130 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 09:00:24,130 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 09:00:24,131 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 09:00:24,131 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 09:00:24,134 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-18 09:00:24,134 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 09:00:24,147 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 09:00:24,153 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 09:00:24,153 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-18 09:00:24,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 09:00:24,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 09:00:24,230 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 09:00:24,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-18 09:00:24,233 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 09:00:24,233 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 09:00:24,233 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 09:00:24,234 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = 1*ULTIMATE.start_main_~y~0#1 Supporting invariants [] [2023-02-18 09:00:24,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-18 09:00:24,240 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 09:00:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 09:00:24,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 09:00:24,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 09:00:24,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 09:00:24,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 09:00:24,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 13 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 09:00:24,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 09:00:24,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 09:00:24,341 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-02-18 09:00:24,343 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 09:00:24,398 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 6 states. [2023-02-18 09:00:24,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-18 09:00:24,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 09:00:24,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-02-18 09:00:24,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-18 09:00:24,402 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 09:00:24,402 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-18 09:00:24,403 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 09:00:24,416 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-18 09:00:24,417 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 09:00:24,417 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-18 09:00:24,420 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 09:00:24,420 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2023-02-18 09:00:24,420 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-18 09:00:24,420 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-18 09:00:24,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-18 09:00:24,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 09:00:24,420 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 09:00:24,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-18 09:00:24,421 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 09:00:24,424 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 09:00:24,424 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-18 09:00:24,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-18 09:00:24,424 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 09:00:24,424 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-18 09:00:24,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 09:00:24 BoogieIcfgContainer [2023-02-18 09:00:24,431 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 09:00:24,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 09:00:24,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 09:00:24,432 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 09:00:24,432 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 09:00:23" (3/4) ... [2023-02-18 09:00:24,435 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 09:00:24,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 09:00:24,436 INFO L158 Benchmark]: Toolchain (without parser) took 1766.36ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 89.4MB in the end (delta: -14.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 09:00:24,436 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 09:00:24,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 165.03ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 66.0MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 09:00:24,437 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.54ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 64.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 09:00:24,438 INFO L158 Benchmark]: Boogie Preprocessor took 15.66ms. Allocated memory is still 121.6MB. Free memory was 64.7MB in the beginning and 63.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 09:00:24,438 INFO L158 Benchmark]: RCFGBuilder took 275.37ms. Allocated memory is still 121.6MB. Free memory was 63.6MB in the beginning and 55.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 09:00:24,438 INFO L158 Benchmark]: BuchiAutomizer took 1268.33ms. Allocated memory is still 121.6MB. Free memory was 55.3MB in the beginning and 90.0MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 09:00:24,439 INFO L158 Benchmark]: Witness Printer took 4.00ms. Allocated memory is still 121.6MB. Free memory was 90.0MB in the beginning and 89.4MB in the end (delta: 587.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 09:00:24,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 94.4MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 165.03ms. Allocated memory is still 121.6MB. Free memory was 75.1MB in the beginning and 66.0MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.54ms. Allocated memory is still 121.6MB. Free memory was 66.0MB in the beginning and 64.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.66ms. Allocated memory is still 121.6MB. Free memory was 64.7MB in the beginning and 63.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.37ms. Allocated memory is still 121.6MB. Free memory was 63.6MB in the beginning and 55.6MB in the end (delta: 8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1268.33ms. Allocated memory is still 121.6MB. Free memory was 55.3MB in the beginning and 90.0MB in the end (delta: -34.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.00ms. Allocated memory is still 121.6MB. Free memory was 90.0MB in the beginning and 89.4MB in the end (delta: 587.6kB). 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital30 mio100 ax139 hnf100 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf92 smp100 dnf100 smp100 tf105 neg97 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 55ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-18 09:00:24,477 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE