./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.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 c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:24:54,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:24:54,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:24:54,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:24:54,956 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:24:54,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:24:54,958 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:24:54,959 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:24:54,961 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:24:54,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:24:54,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:24:54,965 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:24:54,966 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:24:54,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:24:54,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:24:54,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:24:54,973 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:24:54,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:24:54,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:24:54,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:24:54,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:24:54,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:24:54,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:24:54,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:24:54,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:24:54,991 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:24:54,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:24:54,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:24:54,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:24:54,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:24:54,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:24:54,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:24:54,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:24:54,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:24:54,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:24:54,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:24:54,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:24:54,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:24:54,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:24:55,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:24:55,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:24:55,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:24:55,033 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:24:55,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:24:55,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:24:55,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:24:55,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:24:55,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:24:55,035 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:24:55,036 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:24:55,036 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:24:55,036 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:24:55,037 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:24:55,037 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:24:55,037 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:24:55,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:24:55,037 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:24:55,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:24:55,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:24:55,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:24:55,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:24:55,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:24:55,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:24:55,039 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:24:55,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:24:55,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:24:55,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:24:55,040 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:24:55,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:24:55,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:24:55,041 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:24:55,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c64ddc091da8ed0532dcccc83eb64a4ecc9abe88fb93c047052ca7ac9ea29989 [2022-02-21 03:24:55,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:24:55,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:24:55,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:24:55,324 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:24:55,324 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:24:55,325 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2022-02-21 03:24:55,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f6ad22b/362de40cd3194d6bab95567ad96074fb/FLAG5ed83e8d3 [2022-02-21 03:24:55,794 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:24:55,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/HarrisLalNoriRajamani-SAS2010-Fig3.c [2022-02-21 03:24:55,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f6ad22b/362de40cd3194d6bab95567ad96074fb/FLAG5ed83e8d3 [2022-02-21 03:24:55,823 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12f6ad22b/362de40cd3194d6bab95567ad96074fb [2022-02-21 03:24:55,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:24:55,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:24:55,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:24:55,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:24:55,833 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:24:55,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:55" (1/1) ... [2022-02-21 03:24:55,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c163857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:55, skipping insertion in model container [2022-02-21 03:24:55,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:24:55" (1/1) ... [2022-02-21 03:24:55,844 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:24:55,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:24:56,011 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:24:56,014 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:24:56,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:24:56,036 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:24:56,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56 WrapperNode [2022-02-21 03:24:56,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:24:56,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:24:56,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:24:56,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:24:56,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,067 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 22 [2022-02-21 03:24:56,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:24:56,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:24:56,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:24:56,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:24:56,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:24:56,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:24:56,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:24:56,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:24:56,096 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (1/1) ... [2022-02-21 03:24:56,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:56,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:56,129 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) [2022-02-21 03:24:56,149 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 [2022-02-21 03:24:56,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:24:56,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:24:56,201 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:24:56,203 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:24:56,314 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:24:56,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:24:56,326 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:24:56,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:56 BoogieIcfgContainer [2022-02-21 03:24:56,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:24:56,334 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:24:56,334 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:24:56,337 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:24:56,338 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:56,339 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:24:55" (1/3) ... [2022-02-21 03:24:56,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@642a07c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:56, skipping insertion in model container [2022-02-21 03:24:56,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:56,340 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:24:56" (2/3) ... [2022-02-21 03:24:56,340 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@642a07c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:24:56, skipping insertion in model container [2022-02-21 03:24:56,340 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:24:56,341 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:56" (3/3) ... [2022-02-21 03:24:56,342 INFO L388 chiAutomizerObserver]: Analyzing ICFG HarrisLalNoriRajamani-SAS2010-Fig3.c [2022-02-21 03:24:56,393 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:24:56,393 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:24:56,393 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:24:56,393 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:24:56,393 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:24:56,394 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:24:56,394 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:24:56,394 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:24:56,412 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:56,433 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:24:56,433 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:56,433 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:56,438 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:24:56,438 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:24:56,438 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:24:56,439 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:56,442 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:24:56,442 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:56,442 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:56,443 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:24:56,443 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-02-21 03:24:56,449 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1;~x~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 5#L23-2true [2022-02-21 03:24:56,449 INFO L793 eck$LassoCheckResult]: Loop: 5#L23-2true assume !!(~x~0 > 0); 6#L23true assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;assume { :begin_inline_foo } true;havoc foo_#t~post0#1;foo_#t~post0#1 := ~x~0;~x~0 := foo_#t~post0#1 - 1;havoc foo_#t~post0#1; 11#L14-1true assume { :end_inline_foo } true; 5#L23-2true [2022-02-21 03:24:56,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:56,455 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:24:56,463 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:56,463 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067972126] [2022-02-21 03:24:56,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:56,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:56,533 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:56,555 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:56,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:56,558 INFO L85 PathProgramCache]: Analyzing trace with hash 40940, now seen corresponding path program 1 times [2022-02-21 03:24:56,558 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:56,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127333856] [2022-02-21 03:24:56,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:56,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:56,573 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:56,589 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:56,591 INFO L85 PathProgramCache]: Analyzing trace with hash 28699882, now seen corresponding path program 1 times [2022-02-21 03:24:56,592 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:24:56,592 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147314695] [2022-02-21 03:24:56,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:24:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:24:56,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:56,606 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:24:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:24:56,616 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:24:56,721 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:24:56,722 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:24:56,722 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:24:56,722 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:24:56,722 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-02-21 03:24:56,722 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:56,722 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:24:56,722 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:24:56,723 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2022-02-21 03:24:56,723 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:24:56,723 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:24:56,735 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:56,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:56,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:56,835 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:24:56,836 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-02-21 03:24:56,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:56,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:56,839 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) [2022-02-21 03:24:56,841 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 [2022-02-21 03:24:56,842 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:56,842 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:56,868 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:24:56,868 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2#1=0} Honda state: {ULTIMATE.start_main_#t~nondet2#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:24:56,900 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 [2022-02-21 03:24:56,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:56,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:56,903 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) [2022-02-21 03:24:56,912 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:56,912 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:56,922 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 [2022-02-21 03:24:56,931 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-02-21 03:24:56,931 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post0#1=0} Honda state: {ULTIMATE.start_foo_#t~post0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-02-21 03:24:56,957 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 [2022-02-21 03:24:56,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:56,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:56,959 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) [2022-02-21 03:24:56,960 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 [2022-02-21 03:24:56,961 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-02-21 03:24:56,962 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:57,008 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 [2022-02-21 03:24:57,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,010 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) [2022-02-21 03:24:57,018 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-02-21 03:24:57,018 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-02-21 03:24:57,043 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 [2022-02-21 03:24:57,071 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-02-21 03:24:57,079 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 [2022-02-21 03:24:57,079 INFO L210 LassoAnalysis]: Preferences: [2022-02-21 03:24:57,079 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-02-21 03:24:57,079 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-02-21 03:24:57,079 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-02-21 03:24:57,079 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-02-21 03:24:57,079 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,080 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-02-21 03:24:57,080 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-02-21 03:24:57,080 INFO L133 ssoRankerPreferences]: Filename of dumped script: HarrisLalNoriRajamani-SAS2010-Fig3.c_Iteration1_Loop [2022-02-21 03:24:57,080 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-02-21 03:24:57,080 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-02-21 03:24:57,081 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:57,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:57,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-02-21 03:24:57,149 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-02-21 03:24:57,153 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-02-21 03:24:57,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,156 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) [2022-02-21 03:24:57,157 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 [2022-02-21 03:24:57,158 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 [2022-02-21 03:24:57,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:57,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:24:57,167 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:57,167 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:57,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:57,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:24:57,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:24:57,187 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:57,211 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 [2022-02-21 03:24:57,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,214 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) [2022-02-21 03:24:57,226 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 [2022-02-21 03:24:57,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:57,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:24:57,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:57,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:57,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:57,236 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:24:57,236 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:24:57,239 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 [2022-02-21 03:24:57,254 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-02-21 03:24:57,278 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 [2022-02-21 03:24:57,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,281 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) [2022-02-21 03:24:57,283 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 [2022-02-21 03:24:57,284 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 [2022-02-21 03:24:57,292 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-02-21 03:24:57,292 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-02-21 03:24:57,292 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-02-21 03:24:57,293 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-02-21 03:24:57,293 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-02-21 03:24:57,294 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-02-21 03:24:57,294 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-02-21 03:24:57,319 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-02-21 03:24:57,324 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-02-21 03:24:57,324 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-02-21 03:24:57,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:24:57,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:24:57,328 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) [2022-02-21 03:24:57,329 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 [2022-02-21 03:24:57,332 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-02-21 03:24:57,333 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-02-21 03:24:57,333 INFO L513 LassoAnalysis]: Proved termination. [2022-02-21 03:24:57,333 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2022-02-21 03:24:57,354 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 [2022-02-21 03:24:57,369 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-02-21 03:24:57,374 INFO L390 LassoCheck]: Loop: "assume !!(~x~0 > 0);" "assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;assume { :begin_inline_foo } true;havoc foo_#t~post0#1;foo_#t~post0#1 := ~x~0;~x~0 := foo_#t~post0#1 - 1;havoc foo_#t~post0#1;" "assume { :end_inline_foo } true;" [2022-02-21 03:24:57,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:57,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:24:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:57,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2022-02-21 03:24:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:57,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:24:57,427 INFO L290 TraceCheckUtils]: 0: Hoare triple {20#unseeded} assume { :begin_inline_ULTIMATE.init } true;~x~0 := 0; {20#unseeded} is VALID [2022-02-21 03:24:57,428 INFO L290 TraceCheckUtils]: 1: Hoare triple {20#unseeded} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1;~x~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; {20#unseeded} is VALID [2022-02-21 03:24:57,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:57,437 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-21 03:24:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 03:24:57,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-21 03:24:57,537 INFO L290 TraceCheckUtils]: 0: Hoare triple {23#(>= oldRank0 ~x~0)} assume !!(~x~0 > 0); {41#(and (>= oldRank0 ~x~0) (< 0 ~x~0))} is VALID [2022-02-21 03:24:57,538 INFO L290 TraceCheckUtils]: 1: Hoare triple {41#(and (>= oldRank0 ~x~0) (< 0 ~x~0))} assume !(0 != main_#t~nondet2#1);havoc main_#t~nondet2#1;assume { :begin_inline_foo } true;havoc foo_#t~post0#1;foo_#t~post0#1 := ~x~0;~x~0 := foo_#t~post0#1 - 1;havoc foo_#t~post0#1; {45#(and (<= (+ ~x~0 1) oldRank0) (< 0 oldRank0))} is VALID [2022-02-21 03:24:57,538 INFO L290 TraceCheckUtils]: 2: Hoare triple {45#(and (<= (+ ~x~0 1) oldRank0) (< 0 oldRank0))} assume { :end_inline_foo } true; {33#(or unseeded (and (>= oldRank0 0) (> oldRank0 ~x~0)))} is VALID [2022-02-21 03:24:57,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 03:24:57,562 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-21 03:24:57,570 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 03:24:57,572 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,577 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-02-21 03:24:57,579 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 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) [2022-02-21 03:24:57,636 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 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 23 states and 28 transitions. Complement of second has 7 states. [2022-02-21 03:24:57,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-02-21 03:24:57,636 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:24:57,637 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:57,641 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:24:57,642 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:57,642 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:57,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. 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) [2022-02-21 03:24:57,646 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 03:24:57,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:24:57,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:24:57,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. [2022-02-21 03:24:57,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:57,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:57,651 INFO L70 LassoExtractor]: Start lassoExtractor. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 03:24:57,653 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2022-02-21 03:24:57,654 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 4 examples of accepted words. [2022-02-21 03:24:57,654 INFO L70 LassoExtractor]: Start lassoExtractor. 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) [2022-02-21 03:24:57,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2022-02-21 03:24:57,659 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2022-02-21 03:24:57,659 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 23 states and 28 transitions. cyclomatic complexity: 6 [2022-02-21 03:24:57,659 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 28 transitions. cyclomatic complexity: 6 [2022-02-21 03:24:57,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:57,659 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2022-02-21 03:24:57,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,660 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:57,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,662 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:57,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,662 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:57,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,664 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 23 letters. Loop has 23 letters. [2022-02-21 03:24:57,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,665 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 23 letters. Loop has 23 letters. [2022-02-21 03:24:57,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 23 letters. Loop has 23 letters. [2022-02-21 03:24:57,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 10 letters. Loop has 10 letters. [2022-02-21 03:24:57,668 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,668 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 10 letters. Loop has 10 letters. [2022-02-21 03:24:57,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 10 letters. Loop has 10 letters. [2022-02-21 03:24:57,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:24:57,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,673 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:24:57,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 5 letters. Loop has 5 letters. [2022-02-21 03:24:57,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,674 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,675 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:57,675 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,676 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:57,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 3 letters. [2022-02-21 03:24:57,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,676 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:57,676 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,677 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:57,678 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,678 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:57,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,679 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:57,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,679 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:57,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,680 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 3 letters. [2022-02-21 03:24:57,680 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,681 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:57,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,682 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:57,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 1 letters. [2022-02-21 03:24:57,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:57,682 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,683 INFO L84 BuchiAccepts]: Start buchiAccepts 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) Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:57,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 28 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 2 letters. [2022-02-21 03:24:57,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,683 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2022-02-21 03:24:57,688 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) [2022-02-21 03:24:57,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2022-02-21 03:24:57,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2022-02-21 03:24:57,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2022-02-21 03:24:57,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,696 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2022-02-21 03:24:57,696 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-02-21 03:24:57,697 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 28 transitions. cyclomatic complexity: 6 [2022-02-21 03:24:57,700 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:57,702 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2022-02-21 03:24:57,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-02-21 03:24:57,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-02-21 03:24:57,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-02-21 03:24:57,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 03:24:57,704 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:57,704 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:57,704 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-21 03:24:57,704 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 03:24:57,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-02-21 03:24:57,704 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-02-21 03:24:57,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-02-21 03:24:57,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:24:57 BoogieIcfgContainer [2022-02-21 03:24:57,710 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:24:57,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:24:57,711 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:24:57,711 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:24:57,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:24:56" (3/4) ... [2022-02-21 03:24:57,715 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-21 03:24:57,715 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:24:57,717 INFO L158 Benchmark]: Toolchain (without parser) took 1889.39ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 49.6MB in the beginning and 64.8MB in the end (delta: -15.2MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-02-21 03:24:57,718 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:57,722 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.52ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 49.3MB in the beginning and 96.9MB in the end (delta: -47.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-02-21 03:24:57,722 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.60ms. Allocated memory is still 119.5MB. Free memory was 96.9MB in the beginning and 95.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:57,723 INFO L158 Benchmark]: Boogie Preprocessor took 20.54ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.8MB in the end (delta: 957.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:24:57,724 INFO L158 Benchmark]: RCFGBuilder took 242.65ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 85.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:24:57,724 INFO L158 Benchmark]: BuchiAutomizer took 1376.54ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 64.8MB in the end (delta: 20.9MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-02-21 03:24:57,724 INFO L158 Benchmark]: Witness Printer took 4.66ms. Allocated memory is still 119.5MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:24:57,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory was 56.1MB in the beginning and 56.1MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.52ms. Allocated memory was 83.9MB in the beginning and 119.5MB in the end (delta: 35.7MB). Free memory was 49.3MB in the beginning and 96.9MB in the end (delta: -47.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.60ms. Allocated memory is still 119.5MB. Free memory was 96.9MB in the beginning and 95.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.54ms. Allocated memory is still 119.5MB. Free memory was 95.8MB in the beginning and 94.8MB in the end (delta: 957.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 242.65ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 85.7MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1376.54ms. Allocated memory is still 119.5MB. Free memory was 85.7MB in the beginning and 64.8MB in the end (delta: 20.9MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Witness Printer took 4.66ms. Allocated memory is still 119.5MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax100 hnf100 lsp76 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 32ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-02-21 03:24:57,771 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 [2022-02-21 03:24:57,971 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