./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f4b24e32 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-memory-alloca/rec_strlen-alloca-2.i -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 670ba1f7b305b901cafb6eb07f9685f38a74d232de67a28beb70e276cc8ee0cd --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:02:15,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:02:15,656 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:02:15,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:02:15,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:02:15,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:02:15,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:02:15,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:02:15,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:02:15,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:02:15,701 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:02:15,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:02:15,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:02:15,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:02:15,705 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:02:15,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:02:15,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:02:15,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:02:15,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:02:15,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:02:15,715 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:02:15,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:02:15,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:02:15,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:02:15,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:02:15,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:02:15,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:02:15,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:02:15,724 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:02:15,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:02:15,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:02:15,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:02:15,727 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:02:15,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:02:15,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:02:15,728 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:02:15,728 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:02:15,729 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:02:15,729 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:02:15,729 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:02:15,730 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:02:15,731 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:02:15,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-14 15:02:15,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:02:15,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:02:15,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:02:15,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:02:15,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:02:15,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:02:15,760 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:02:15,760 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:02:15,761 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:02:15,761 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:02:15,761 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:02:15,761 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:02:15,762 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:02:15,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:02:15,763 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:02:15,763 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:02:15,767 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:02:15,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:02:15,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:02:15,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:02:15,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:02:15,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:02:15,769 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:02:15,769 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 670ba1f7b305b901cafb6eb07f9685f38a74d232de67a28beb70e276cc8ee0cd [2022-07-14 15:02:15,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:02:15,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:02:15,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:02:15,975 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:02:15,976 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:02:15,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2022-07-14 15:02:16,050 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2b51a0fe/c617e1ecf02d4d639e0332a925708d34/FLAGf7293ff22 [2022-07-14 15:02:16,501 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:02:16,502 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/rec_strlen-alloca-2.i [2022-07-14 15:02:16,508 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2b51a0fe/c617e1ecf02d4d639e0332a925708d34/FLAGf7293ff22 [2022-07-14 15:02:16,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2b51a0fe/c617e1ecf02d4d639e0332a925708d34 [2022-07-14 15:02:16,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:02:16,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:02:16,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:02:16,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:02:16,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:02:16,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66223f46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16, skipping insertion in model container [2022-07-14 15:02:16,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:02:16,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:02:16,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:02:16,735 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:02:16,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:02:16,793 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:02:16,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16 WrapperNode [2022-07-14 15:02:16,794 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:02:16,795 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:02:16,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:02:16,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:02:16,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,829 INFO L137 Inliner]: procedures = 111, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2022-07-14 15:02:16,830 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:02:16,831 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:02:16,831 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:02:16,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:02:16,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:02:16,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:02:16,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:02:16,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:02:16,859 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (1/1) ... [2022-07-14 15:02:16,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:16,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:16,889 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) [2022-07-14 15:02:16,897 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 [2022-07-14 15:02:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 15:02:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 15:02:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 15:02:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 15:02:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure strlen_rec [2022-07-14 15:02:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure strlen_rec [2022-07-14 15:02:16,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:02:16,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:02:16,967 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:02:16,968 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:02:17,035 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:02:17,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:02:17,039 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 15:02:17,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:02:17 BoogieIcfgContainer [2022-07-14 15:02:17,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:02:17,041 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:02:17,041 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:02:17,043 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:02:17,043 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:02:17,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:02:16" (1/3) ... [2022-07-14 15:02:17,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ee0eeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:02:17, skipping insertion in model container [2022-07-14 15:02:17,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:02:17,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:02:16" (2/3) ... [2022-07-14 15:02:17,045 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ee0eeff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:02:17, skipping insertion in model container [2022-07-14 15:02:17,045 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:02:17,045 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:02:17" (3/3) ... [2022-07-14 15:02:17,046 INFO L354 chiAutomizerObserver]: Analyzing ICFG rec_strlen-alloca-2.i [2022-07-14 15:02:17,088 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:02:17,089 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:02:17,089 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:02:17,089 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:02:17,089 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:02:17,089 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:02:17,089 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:02:17,089 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:02:17,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 15:02:17,111 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-14 15:02:17,111 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:02:17,111 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:02:17,115 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-14 15:02:17,115 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 15:02:17,116 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:02:17,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-07-14 15:02:17,117 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-14 15:02:17,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:02:17,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:02:17,117 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-14 15:02:17,117 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 15:02:17,122 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~malloc5#1.base, main_#t~malloc5#1.offset, main_#t~ret6#1, main_~length1~0#1, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset;main_~length1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 10#L555true assume !(main_~length1~0#1 < 1); 7#L555-2true call main_#t~malloc5#1.base, main_#t~malloc5#1.offset := #Ultimate.allocOnStack(main_~length1~0#1);main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset := main_#t~malloc5#1.base, main_#t~malloc5#1.offset;call write~int(0, main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset + (main_~length1~0#1 - 1), 1); 5#L560true call main_#t~ret6#1 := strlen_rec(main_~nondetString1~0#1.base, main_~nondetString1~0#1.offset);< 12#strlen_recENTRYtrue [2022-07-14 15:02:17,122 INFO L754 eck$LassoCheckResult]: Loop: 12#strlen_recENTRYtrue ~p.base, ~p.offset := #in~p.base, #in~p.offset;call #t~mem2 := read~int(~p.base, ~p.offset, 1); 13#L548true assume !(0 == #t~mem2);havoc #t~mem2; 14#L551true call #t~ret3 := strlen_rec(~p.base, 1 + ~p.offset);< 12#strlen_recENTRYtrue [2022-07-14 15:02:17,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:02:17,125 INFO L85 PathProgramCache]: Analyzing trace with hash 28695762, now seen corresponding path program 1 times [2022-07-14 15:02:17,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:02:17,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56224067] [2022-07-14 15:02:17,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:02:17,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:02:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:02:17,232 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:02:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:02:17,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:02:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:02:17,271 INFO L85 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2022-07-14 15:02:17,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:02:17,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621102820] [2022-07-14 15:02:17,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:02:17,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:02:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:02:17,283 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:02:17,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:02:17,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:02:17,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:02:17,296 INFO L85 PathProgramCache]: Analyzing trace with hash 176968867, now seen corresponding path program 1 times [2022-07-14 15:02:17,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:02:17,297 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131214363] [2022-07-14 15:02:17,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:02:17,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:02:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:02:17,334 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:02:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:02:17,357 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:02:17,648 INFO L210 LassoAnalysis]: Preferences: [2022-07-14 15:02:17,649 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-14 15:02:17,649 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-14 15:02:17,649 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-14 15:02:17,650 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-14 15:02:17,650 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:17,650 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-14 15:02:17,651 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-14 15:02:17,651 INFO L133 ssoRankerPreferences]: Filename of dumped script: rec_strlen-alloca-2.i_Iteration1_Lasso [2022-07-14 15:02:17,651 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-14 15:02:17,651 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-14 15:02:17,664 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,671 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,673 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,677 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,679 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,681 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,692 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,694 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,697 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,748 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,759 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-14 15:02:17,909 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-14 15:02:17,912 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-14 15:02:17,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:17,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:17,928 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) [2022-07-14 15:02:17,955 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 [2022-07-14 15:02:17,959 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 [2022-07-14 15:02:17,963 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:17,963 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:17,964 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:17,964 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:17,964 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:17,965 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:17,965 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:17,982 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,000 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 [2022-07-14 15:02:18,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,003 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) [2022-07-14 15:02:18,004 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 [2022-07-14 15:02:18,010 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 [2022-07-14 15:02:18,024 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,025 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,025 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,025 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,025 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,025 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,025 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,032 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,048 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-14 15:02:18,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,050 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) [2022-07-14 15:02:18,051 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 [2022-07-14 15:02:18,061 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 [2022-07-14 15:02:18,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,076 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,094 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 [2022-07-14 15:02:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,096 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) [2022-07-14 15:02:18,097 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 [2022-07-14 15:02:18,100 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 [2022-07-14 15:02:18,106 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,106 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,107 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,107 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,107 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,108 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,108 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,109 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,125 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 [2022-07-14 15:02:18,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,127 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) [2022-07-14 15:02:18,128 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 [2022-07-14 15:02:18,129 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 [2022-07-14 15:02:18,135 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,135 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,135 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,135 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,135 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,136 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,136 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,145 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,176 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 [2022-07-14 15:02:18,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,178 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) [2022-07-14 15:02:18,179 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 [2022-07-14 15:02:18,180 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 [2022-07-14 15:02:18,186 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,187 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,202 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,219 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 [2022-07-14 15:02:18,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,220 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) [2022-07-14 15:02:18,221 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 [2022-07-14 15:02:18,223 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 [2022-07-14 15:02:18,229 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,229 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,229 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,229 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,231 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:02:18,231 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:02:18,263 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,279 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 [2022-07-14 15:02:18,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,281 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) [2022-07-14 15:02:18,282 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 [2022-07-14 15:02:18,283 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 [2022-07-14 15:02:18,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,290 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,290 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:02:18,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:02:18,313 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,341 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 [2022-07-14 15:02:18,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,343 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:02:18,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-07-14 15:02:18,344 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 [2022-07-14 15:02:18,350 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,350 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,351 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,351 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,351 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,351 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,351 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,361 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-07-14 15:02:18,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,378 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:02:18,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-07-14 15:02:18,384 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 [2022-07-14 15:02:18,394 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,394 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,394 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,394 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,394 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,395 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,395 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,410 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-07-14 15:02:18,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,430 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:02:18,430 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2022-07-14 15:02:18,432 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 [2022-07-14 15:02:18,437 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,438 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-14 15:02:18,438 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,438 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,438 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,438 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-14 15:02:18,438 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-14 15:02:18,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2022-07-14 15:02:18,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,464 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:02:18,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2022-07-14 15:02:18,466 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 [2022-07-14 15:02:18,473 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,474 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,474 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,474 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,476 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:02:18,476 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:02:18,482 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-14 15:02:18,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2022-07-14 15:02:18,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,502 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:02:18,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2022-07-14 15:02:18,504 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 [2022-07-14 15:02:18,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-14 15:02:18,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-14 15:02:18,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-14 15:02:18,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-14 15:02:18,516 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-14 15:02:18,516 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-14 15:02:18,528 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-14 15:02:18,537 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2022-07-14 15:02:18,537 INFO L444 ModelExtractionUtils]: 4 out of 10 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-07-14 15:02:18,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:02:18,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:02:18,540 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:02:18,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2022-07-14 15:02:18,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-14 15:02:18,591 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-14 15:02:18,592 INFO L513 LassoAnalysis]: Proved termination. [2022-07-14 15:02:18,592 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length strlen_rec_#in~p.base)_1, strlen_rec_#in~p.offset) = 1*v_rep(select #length strlen_rec_#in~p.base)_1 - 1*strlen_rec_#in~p.offset Supporting invariants [] [2022-07-14 15:02:18,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2022-07-14 15:02:18,613 INFO L293 tatePredicateManager]: 1 out of 1 supporting invariants were superfluous and have been removed [2022-07-14 15:02:18,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:02:18,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:02:18,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 15:02:18,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:02:18,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:02:18,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-14 15:02:18,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 15:02:18,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:02:18,729 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-14 15:02:18,730 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:02:18,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Forceful destruction successful, exit code 0 [2022-07-14 15:02:18,773 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 30 states and 35 transitions. Complement of second has 8 states. [2022-07-14 15:02:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-14 15:02:18,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:02:18,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2022-07-14 15:02:18,793 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 3 letters. [2022-07-14 15:02:18,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:02:18,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 3 letters. [2022-07-14 15:02:18,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:02:18,794 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 5 letters. Loop has 6 letters. [2022-07-14 15:02:18,794 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-14 15:02:18,794 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2022-07-14 15:02:18,796 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:02:18,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2022-07-14 15:02:18,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-14 15:02:18,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-14 15:02:18,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-14 15:02:18,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:02:18,798 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:02:18,798 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:02:18,798 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-14 15:02:18,799 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:02:18,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-14 15:02:18,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-14 15:02:18,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-14 15:02:18,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:02:18 BoogieIcfgContainer [2022-07-14 15:02:18,803 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:02:18,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:02:18,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:02:18,803 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:02:18,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:02:17" (3/4) ... [2022-07-14 15:02:18,805 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-14 15:02:18,805 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:02:18,806 INFO L158 Benchmark]: Toolchain (without parser) took 2285.60ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 68.2MB in the beginning and 80.6MB in the end (delta: -12.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2022-07-14 15:02:18,806 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:02:18,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.97ms. Allocated memory is still 94.4MB. Free memory was 68.0MB in the beginning and 59.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-14 15:02:18,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.54ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 57.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:02:18,807 INFO L158 Benchmark]: Boogie Preprocessor took 26.50ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 56.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:02:18,807 INFO L158 Benchmark]: RCFGBuilder took 182.73ms. Allocated memory is still 94.4MB. Free memory was 56.2MB in the beginning and 70.4MB in the end (delta: -14.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-07-14 15:02:18,808 INFO L158 Benchmark]: BuchiAutomizer took 1761.97ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 70.3MB in the beginning and 80.6MB in the end (delta: -10.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2022-07-14 15:02:18,808 INFO L158 Benchmark]: Witness Printer took 2.11ms. Allocated memory is still 113.2MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:02:18,809 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 77.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.97ms. Allocated memory is still 94.4MB. Free memory was 68.0MB in the beginning and 59.0MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.54ms. Allocated memory is still 94.4MB. Free memory was 58.8MB in the beginning and 57.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.50ms. Allocated memory is still 94.4MB. Free memory was 57.2MB in the beginning and 56.2MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 182.73ms. Allocated memory is still 94.4MB. Free memory was 56.2MB in the beginning and 70.4MB in the end (delta: -14.3MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1761.97ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 70.3MB in the beginning and 80.6MB in the end (delta: -10.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * Witness Printer took 2.11ms. Allocated memory is still 113.2MB. Free memory is still 80.6MB. 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 -1 * p + unknown-#length-unknown[p] and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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 -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, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 10 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital88 mio100 ax120 hnf100 lsp77 ukn67 mio100 lsp49 div100 bol100 ite100 ukn100 eq166 hnf91 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 43ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-14 15:02:18,833 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