./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_01.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a31fd051 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/NO_01.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 fb88f4e3847928194a09ee7421ca208530ca40554291ef14571bd7868fcf839b --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 14:15:39,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 14:15:39,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 14:15:39,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 14:15:39,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 14:15:39,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 14:15:39,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 14:15:39,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 14:15:39,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 14:15:39,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 14:15:39,912 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 14:15:39,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 14:15:39,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 14:15:39,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 14:15:39,918 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 14:15:39,919 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 14:15:39,920 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 14:15:39,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 14:15:39,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 14:15:39,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 14:15:39,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 14:15:39,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 14:15:39,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 14:15:39,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 14:15:39,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 14:15:39,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 14:15:39,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 14:15:39,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 14:15:39,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 14:15:39,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 14:15:39,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 14:15:39,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 14:15:39,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 14:15:39,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 14:15:39,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 14:15:39,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 14:15:39,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 14:15:39,948 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 14:15:39,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 14:15:39,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 14:15:39,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 14:15:39,950 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-15 14:15:39,978 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 14:15:39,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 14:15:39,979 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 14:15:39,979 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 14:15:39,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 14:15:39,981 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 14:15:39,981 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 14:15:39,981 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-15 14:15:39,981 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-15 14:15:39,982 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-15 14:15:39,982 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-15 14:15:39,983 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-15 14:15:39,983 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-15 14:15:39,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 14:15:39,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 14:15:39,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 14:15:39,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 14:15:39,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-15 14:15:39,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-15 14:15:39,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-15 14:15:39,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 14:15:39,985 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-15 14:15:39,985 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 14:15:39,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-15 14:15:39,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 14:15:39,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 14:15:39,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 14:15:39,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 14:15:39,987 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-15 14:15:39,987 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fb88f4e3847928194a09ee7421ca208530ca40554291ef14571bd7868fcf839b [2023-02-15 14:15:40,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 14:15:40,259 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 14:15:40,261 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 14:15:40,263 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 14:15:40,263 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 14:15:40,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_01.c [2023-02-15 14:15:41,338 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 14:15:41,470 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 14:15:41,471 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_01.c [2023-02-15 14:15:41,476 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/793bbf31f/5d5a11ce12994686a85f510fc3a1f8a5/FLAG1045e4630 [2023-02-15 14:15:41,490 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/793bbf31f/5d5a11ce12994686a85f510fc3a1f8a5 [2023-02-15 14:15:41,493 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 14:15:41,494 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 14:15:41,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 14:15:41,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 14:15:41,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 14:15:41,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c740ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41, skipping insertion in model container [2023-02-15 14:15:41,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 14:15:41,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 14:15:41,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:15:41,655 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 14:15:41,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 14:15:41,682 INFO L208 MainTranslator]: Completed translation [2023-02-15 14:15:41,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41 WrapperNode [2023-02-15 14:15:41,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 14:15:41,684 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 14:15:41,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 14:15:41,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 14:15:41,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,712 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-02-15 14:15:41,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 14:15:41,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 14:15:41,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 14:15:41,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 14:15:41,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,732 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,732 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 14:15:41,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 14:15:41,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 14:15:41,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 14:15:41,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (1/1) ... [2023-02-15 14:15:41,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:41,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:41,762 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) [2023-02-15 14:15:41,767 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 [2023-02-15 14:15:41,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 14:15:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 14:15:41,853 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 14:15:41,855 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 14:15:42,026 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 14:15:42,031 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 14:15:42,031 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-15 14:15:42,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:15:42 BoogieIcfgContainer [2023-02-15 14:15:42,034 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 14:15:42,034 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-15 14:15:42,035 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-15 14:15:42,038 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-15 14:15:42,053 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:15:42,054 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.02 02:15:41" (1/3) ... [2023-02-15 14:15:42,055 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47fe01b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:15:42, skipping insertion in model container [2023-02-15 14:15:42,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:15:42,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:15:41" (2/3) ... [2023-02-15 14:15:42,055 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@47fe01b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.02 02:15:42, skipping insertion in model container [2023-02-15 14:15:42,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-15 14:15:42,055 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:15:42" (3/3) ... [2023-02-15 14:15:42,057 INFO L332 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2023-02-15 14:15:42,122 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-15 14:15:42,128 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-15 14:15:42,129 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-15 14:15:42,129 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-15 14:15:42,129 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-15 14:15:42,129 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-15 14:15:42,129 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-15 14:15:42,129 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-15 14:15:42,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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) [2023-02-15 14:15:42,155 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-02-15 14:15:42,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:15:42,169 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:15:42,173 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 14:15:42,184 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:15:42,185 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-15 14:15:42,185 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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) [2023-02-15 14:15:42,187 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2023-02-15 14:15:42,187 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:15:42,187 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:15:42,187 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-02-15 14:15:42,187 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:15:42,197 INFO L748 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~c~0#1, main_~i~0#1;havoc main_~c~0#1;havoc main_~i~0#1;main_~c~0#1 := 864; 10#L10true assume main_~c~0#1 <= 10;main_~i~0#1 := 0; 2#L12-2true [2023-02-15 14:15:42,213 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(main_~i~0#1 < 100);main_~i~0#1 := 1 + main_~i~0#1; 2#L12-2true [2023-02-15 14:15:42,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:15:42,218 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2023-02-15 14:15:42,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:15:42,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115193929] [2023-02-15 14:15:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:15:42,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:15:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:15:42,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:15:42,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 14:15:42,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115193929] [2023-02-15 14:15:42,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115193929] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 14:15:42,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 14:15:42,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 14:15:42,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318819205] [2023-02-15 14:15:42,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 14:15:42,331 INFO L753 eck$LassoCheckResult]: stem already infeasible [2023-02-15 14:15:42,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:15:42,332 INFO L85 PathProgramCache]: Analyzing trace with hash 45, now seen corresponding path program 1 times [2023-02-15 14:15:42,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:15:42,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117330617] [2023-02-15 14:15:42,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:15:42,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:15:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:42,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:15:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:42,354 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:15:42,389 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:15:42,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:15:42,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:15:42,390 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:15:42,390 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-15 14:15:42,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:15:42,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:15:42,391 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2023-02-15 14:15:42,391 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:15:42,391 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:15:42,408 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:15:42,424 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:15:42,430 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:15:42,477 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:15:42,477 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-15 14:15:42,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,482 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) [2023-02-15 14:15:42,494 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:15:42,494 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:15:42,497 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 [2023-02-15 14:15:42,518 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:15:42,519 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: [] [2023-02-15 14:15:42,530 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 [2023-02-15 14:15:42,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,533 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) [2023-02-15 14:15:42,534 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 [2023-02-15 14:15:42,536 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:15:42,536 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:15:42,549 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-15 14:15:42,549 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: [] [2023-02-15 14:15:42,553 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 [2023-02-15 14:15:42,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,555 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) [2023-02-15 14:15:42,560 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 [2023-02-15 14:15:42,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-15 14:15:42,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:15:42,572 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 [2023-02-15 14:15:42,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,574 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) [2023-02-15 14:15:42,577 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 [2023-02-15 14:15:42,578 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-15 14:15:42,578 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-15 14:15:42,604 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-15 14:15:42,608 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 [2023-02-15 14:15:42,609 INFO L210 LassoAnalysis]: Preferences: [2023-02-15 14:15:42,609 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-15 14:15:42,609 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-15 14:15:42,609 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-15 14:15:42,609 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-15 14:15:42,609 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,609 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-15 14:15:42,609 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-15 14:15:42,609 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2023-02-15 14:15:42,610 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-15 14:15:42,610 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-15 14:15:42,611 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:15:42,615 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:15:42,618 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-15 14:15:42,674 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-15 14:15:42,678 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-15 14:15:42,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,681 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) [2023-02-15 14:15:42,687 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 [2023-02-15 14:15:42,694 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 [2023-02-15 14:15:42,701 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:15:42,701 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:15:42,701 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:15:42,702 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:15:42,708 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:15:42,708 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:15:42,726 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:15:42,733 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 [2023-02-15 14:15:42,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,735 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) [2023-02-15 14:15:42,737 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 [2023-02-15 14:15:42,771 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 [2023-02-15 14:15:42,778 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:15:42,778 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:15:42,778 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:15:42,779 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:15:42,782 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-15 14:15:42,782 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-15 14:15:42,795 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-15 14:15:42,802 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 [2023-02-15 14:15:42,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,804 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) [2023-02-15 14:15:42,807 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 [2023-02-15 14:15:42,808 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 [2023-02-15 14:15:42,814 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-15 14:15:42,815 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-15 14:15:42,815 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-15 14:15:42,815 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-15 14:15:42,815 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-15 14:15:42,817 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-15 14:15:42,817 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-15 14:15:42,826 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-15 14:15:42,845 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-15 14:15:42,845 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-15 14:15:42,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-15 14:15:42,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 14:15:42,889 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) [2023-02-15 14:15:42,891 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 [2023-02-15 14:15:42,893 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-15 14:15:42,893 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-15 14:15:42,894 INFO L513 LassoAnalysis]: Proved termination. [2023-02-15 14:15:42,894 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 199 Supporting invariants [] [2023-02-15 14:15:42,899 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 [2023-02-15 14:15:42,902 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-15 14:15:42,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:15:42,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:15:42,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-15 14:15:42,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:15:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 14:15:42,946 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 14:15:42,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 14:15:42,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 14:15:42,973 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-15 14:15:42,975 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:15:43,002 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 46 transitions. Complement of second has 5 states. [2023-02-15 14:15:43,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-15 14:15:43,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:15:43,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 37 transitions. [2023-02-15 14:15:43,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-15 14:15:43,010 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:15:43,010 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 4 letters. Loop has 1 letters. [2023-02-15 14:15:43,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:15:43,011 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 37 transitions. Stem has 3 letters. Loop has 2 letters. [2023-02-15 14:15:43,011 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-15 14:15:43,011 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 46 transitions. [2023-02-15 14:15:43,014 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2023-02-15 14:15:43,016 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 8 states and 11 transitions. [2023-02-15 14:15:43,017 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2023-02-15 14:15:43,017 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2023-02-15 14:15:43,018 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2023-02-15 14:15:43,018 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:15:43,018 INFO L218 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 14:15:43,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2023-02-15 14:15:43,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-15 14:15:43,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 14:15:43,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2023-02-15 14:15:43,036 INFO L240 hiAutomatonCegarLoop]: Abstraction has 8 states and 11 transitions. [2023-02-15 14:15:43,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 14:15:43,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 14:15:43,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 14:15:43,039 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-02-15 14:15:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 14:15:43,049 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2023-02-15 14:15:43,049 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 6 transitions. [2023-02-15 14:15:43,049 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:15:43,050 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 6 states and 6 transitions. [2023-02-15 14:15:43,050 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2023-02-15 14:15:43,050 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2023-02-15 14:15:43,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 6 transitions. [2023-02-15 14:15:43,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-15 14:15:43,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-02-15 14:15:43,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 6 transitions. [2023-02-15 14:15:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2023-02-15 14:15:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.0) internal successors, (6), 5 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) [2023-02-15 14:15:43,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-02-15 14:15:43,051 INFO L240 hiAutomatonCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-02-15 14:15:43,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 14:15:43,052 INFO L428 stractBuchiCegarLoop]: Abstraction has 6 states and 6 transitions. [2023-02-15 14:15:43,053 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-15 14:15:43,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 6 transitions. [2023-02-15 14:15:43,053 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-15 14:15:43,053 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-15 14:15:43,053 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-15 14:15:43,054 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2023-02-15 14:15:43,054 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-15 14:15:43,054 INFO L748 eck$LassoCheckResult]: Stem: 93#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 94#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~c~0#1, main_~i~0#1;havoc main_~c~0#1;havoc main_~i~0#1;main_~c~0#1 := 864; 92#L10 assume !(main_~c~0#1 <= 10); 90#L17 assume !(main_~c~0#1 <= 50); 91#L17-1 assume !(main_~c~0#1 <= 100);main_~i~0#1 := 0; 95#L31-2 [2023-02-15 14:15:43,054 INFO L750 eck$LassoCheckResult]: Loop: 95#L31-2 assume !!(main_~i~0#1 < 103);main_~i~0#1 := main_~i~0#1; 95#L31-2 [2023-02-15 14:15:43,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:15:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash 28708162, now seen corresponding path program 1 times [2023-02-15 14:15:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:15:43,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328715084] [2023-02-15 14:15:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:15:43,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:15:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,060 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:15:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:15:43,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:15:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 94, now seen corresponding path program 1 times [2023-02-15 14:15:43,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:15:43,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376739781] [2023-02-15 14:15:43,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:15:43,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:15:43,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:15:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:15:43,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 14:15:43,091 INFO L85 PathProgramCache]: Analyzing trace with hash 889953085, now seen corresponding path program 1 times [2023-02-15 14:15:43,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 14:15:43,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247677504] [2023-02-15 14:15:43,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 14:15:43,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 14:15:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:15:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,103 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 14:15:43,117 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 [2023-02-15 14:15:43,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 14:15:43,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 14:15:43,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.02 02:15:43 BoogieIcfgContainer [2023-02-15 14:15:43,163 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-15 14:15:43,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 14:15:43,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 14:15:43,165 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 14:15:43,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:15:42" (3/4) ... [2023-02-15 14:15:43,168 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-02-15 14:15:43,194 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 14:15:43,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 14:15:43,195 INFO L158 Benchmark]: Toolchain (without parser) took 1700.87ms. Allocated memory is still 136.3MB. Free memory was 100.1MB in the beginning and 100.2MB in the end (delta: -160.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:15:43,195 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:15:43,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 188.31ms. Allocated memory is still 136.3MB. Free memory was 100.1MB in the beginning and 90.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 14:15:43,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.28ms. Allocated memory is still 136.3MB. Free memory was 90.8MB in the beginning and 89.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:15:43,197 INFO L158 Benchmark]: Boogie Preprocessor took 23.33ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 88.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 14:15:43,197 INFO L158 Benchmark]: RCFGBuilder took 296.02ms. Allocated memory is still 136.3MB. Free memory was 88.3MB in the beginning and 107.4MB in the end (delta: -19.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-02-15 14:15:43,198 INFO L158 Benchmark]: BuchiAutomizer took 1129.02ms. Allocated memory is still 136.3MB. Free memory was 107.4MB in the beginning and 102.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2023-02-15 14:15:43,198 INFO L158 Benchmark]: Witness Printer took 30.08ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 14:15:43,200 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 107.0MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 188.31ms. Allocated memory is still 136.3MB. Free memory was 100.1MB in the beginning and 90.8MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.28ms. Allocated memory is still 136.3MB. Free memory was 90.8MB in the beginning and 89.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.33ms. Allocated memory is still 136.3MB. Free memory was 89.3MB in the beginning and 88.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 296.02ms. Allocated memory is still 136.3MB. Free memory was 88.3MB in the beginning and 107.4MB in the end (delta: -19.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 1129.02ms. Allocated memory is still 136.3MB. Free memory was 107.4MB in the beginning and 102.3MB in the end (delta: 5.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * Witness Printer took 30.08ms. Allocated memory is still 136.3MB. Free memory was 102.3MB in the beginning and 100.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 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: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 23 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf100 smp100 dnf93 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 46ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 31]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 VAL [c=864] [L10] COND FALSE !(c <= 10) VAL [c=864] [L17] COND FALSE !(c <= 50) VAL [c=864] [L23] COND FALSE !(c <= 100) [L30] i = 0 VAL [c=864, i=0] Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 VAL [c=864] [L10] COND FALSE !(c <= 10) VAL [c=864] [L17] COND FALSE !(c <= 50) VAL [c=864] [L23] COND FALSE !(c <= 100) [L30] i = 0 VAL [c=864, i=0] Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-02-15 14:15:43,233 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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)