./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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/Velroyen-alloca.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 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:26:27,779 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:26:27,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:26:27,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:26:27,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:26:27,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:26:27,829 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:26:27,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:26:27,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:26:27,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:26:27,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:26:27,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:26:27,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:26:27,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:26:27,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:26:27,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:26:27,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:26:27,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:26:27,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:26:27,849 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:26:27,852 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:26:27,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:26:27,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:26:27,854 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:26:27,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:26:27,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:26:27,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:26:27,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:26:27,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:26:27,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:26:27,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:26:27,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:26:27,861 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:26:27,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:26:27,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:26:27,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:26:27,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:26:27,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:26:27,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:26:27,864 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:26:27,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:26:27,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:26:27,867 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:26:27,889 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:26:27,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:26:27,891 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:26:27,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:26:27,892 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:26:27,892 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:26:27,892 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:26:27,892 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:26:27,892 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:26:27,893 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:26:27,893 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:26:27,893 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:26:27,893 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:26:27,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:26:27,894 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:26:27,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:26:27,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:26:27,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:26:27,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:26:27,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:26:27,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:26:27,895 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:26:27,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:26:27,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:26:27,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:26:27,896 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:26:27,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:26:27,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:26:27,897 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:26:27,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0301294b5b50ee43814efe2bd49b834b2b8f0455334e679e746f10ee76ed616a [2022-07-23 14:26:28,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:26:28,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:26:28,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:26:28,093 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:26:28,093 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:26:28,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2022-07-23 14:26:28,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a63d410cb/862feeb15dec4bc1afaa3603dbb20cce/FLAG7d74e6f8c [2022-07-23 14:26:28,448 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:26:28,448 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Velroyen-alloca.i [2022-07-23 14:26:28,461 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a63d410cb/862feeb15dec4bc1afaa3603dbb20cce/FLAG7d74e6f8c [2022-07-23 14:26:28,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a63d410cb/862feeb15dec4bc1afaa3603dbb20cce [2022-07-23 14:26:28,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:26:28,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:26:28,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:26:28,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:26:28,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:26:28,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:26:28" (1/1) ... [2022-07-23 14:26:28,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ef747e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:28, skipping insertion in model container [2022-07-23 14:26:28,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:26:28" (1/1) ... [2022-07-23 14:26:28,888 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:26:28,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:26:29,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:26:29,152 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:26:29,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:26:29,210 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:26:29,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29 WrapperNode [2022-07-23 14:26:29,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:26:29,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:26:29,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:26:29,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:26:29,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,241 INFO L137 Inliner]: procedures = 110, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2022-07-23 14:26:29,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:26:29,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:26:29,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:26:29,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:26:29,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,255 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,257 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:26:29,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:26:29,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:26:29,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:26:29,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (1/1) ... [2022-07-23 14:26:29,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:29,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:29,285 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) [2022-07-23 14:26:29,294 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 [2022-07-23 14:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 14:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 14:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 14:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 14:26:29,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:26:29,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:26:29,390 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:26:29,391 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:26:29,542 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:26:29,546 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:26:29,546 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:26:29,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:26:29 BoogieIcfgContainer [2022-07-23 14:26:29,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:26:29,548 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:26:29,548 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:26:29,550 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:26:29,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:26:29,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:26:28" (1/3) ... [2022-07-23 14:26:29,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5007fbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:26:29, skipping insertion in model container [2022-07-23 14:26:29,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:26:29,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:26:29" (2/3) ... [2022-07-23 14:26:29,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5007fbef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:26:29, skipping insertion in model container [2022-07-23 14:26:29,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:26:29,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:26:29" (3/3) ... [2022-07-23 14:26:29,553 INFO L354 chiAutomizerObserver]: Analyzing ICFG Velroyen-alloca.i [2022-07-23 14:26:29,600 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:26:29,600 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:26:29,600 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:26:29,600 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:26:29,600 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:26:29,601 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:26:29,601 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:26:29,601 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:26:29,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2022-07-23 14:26:29,616 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-23 14:26:29,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:26:29,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:26:29,620 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:26:29,620 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:26:29,621 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:26:29,621 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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) [2022-07-23 14:26:29,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-23 14:26:29,623 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:26:29,623 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:26:29,623 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:26:29,623 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:26:29,628 INFO L752 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 6#L552-3true [2022-07-23 14:26:29,628 INFO L754 eck$LassoCheckResult]: Loop: 6#L552-3true call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 10#L551-1true assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 12#L552true assume !main_#t~short7#1; 2#L552-2true assume !main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call write~int(0, main_~x~0#1.base, main_~x~0#1.offset, 4); 6#L552-3true [2022-07-23 14:26:29,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:29,634 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 14:26:29,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:29,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479491939] [2022-07-23 14:26:29,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:29,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:29,726 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:29,757 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:29,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:29,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1144151, now seen corresponding path program 1 times [2022-07-23 14:26:29,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:29,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773227977] [2022-07-23 14:26:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:29,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:29,781 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:29,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:29,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:29,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:29,800 INFO L85 PathProgramCache]: Analyzing trace with hash 889571353, now seen corresponding path program 1 times [2022-07-23 14:26:29,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:29,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751000329] [2022-07-23 14:26:29,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:29,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:29,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:29,827 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:29,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:29,836 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:30,062 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:26:30,063 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:26:30,064 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:26:30,064 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:26:30,064 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 14:26:30,064 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,064 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:26:30,065 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:26:30,065 INFO L133 ssoRankerPreferences]: Filename of dumped script: Velroyen-alloca.i_Iteration1_Lasso [2022-07-23 14:26:30,065 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:26:30,065 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:26:30,078 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,082 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,085 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,091 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,094 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,102 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,104 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,216 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:26:30,383 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:26:30,386 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 14:26:30,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,388 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) [2022-07-23 14:26:30,389 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 [2022-07-23 14:26:30,390 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 [2022-07-23 14:26:30,397 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,397 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:26:30,397 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,397 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,397 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,399 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:26:30,399 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:26:30,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,416 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 [2022-07-23 14:26:30,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,417 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) [2022-07-23 14:26:30,418 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 [2022-07-23 14:26:30,425 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 [2022-07-23 14:26:30,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:26:30,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,431 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:26:30,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:26:30,444 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,460 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 [2022-07-23 14:26:30,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,461 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,462 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) [2022-07-23 14:26:30,462 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 [2022-07-23 14:26:30,464 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 [2022-07-23 14:26:30,469 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,470 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:26:30,470 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,470 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,470 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,470 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:26:30,470 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:26:30,485 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,502 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-07-23 14:26:30,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,503 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) [2022-07-23 14:26:30,504 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 [2022-07-23 14:26:30,505 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 [2022-07-23 14:26:30,510 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,510 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:26:30,510 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,510 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,510 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,511 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:26:30,511 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:26:30,519 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,536 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 [2022-07-23 14:26:30,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,537 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) [2022-07-23 14:26:30,539 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 [2022-07-23 14:26:30,542 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 [2022-07-23 14:26:30,547 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,547 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,547 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,547 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,550 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,550 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,556 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,575 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 [2022-07-23 14:26:30,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,576 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) [2022-07-23 14:26:30,577 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 [2022-07-23 14:26:30,579 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 [2022-07-23 14:26:30,583 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,584 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:26:30,584 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,584 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,584 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:26:30,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:26:30,592 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-07-23 14:26:30,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,608 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) [2022-07-23 14:26:30,608 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 [2022-07-23 14:26:30,610 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 [2022-07-23 14:26:30,615 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,616 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,616 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,616 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,620 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,620 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,639 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,654 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2022-07-23 14:26:30,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,656 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) [2022-07-23 14:26:30,656 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 [2022-07-23 14:26:30,663 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 [2022-07-23 14:26:30,668 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,668 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,668 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,669 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,670 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,670 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,673 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,689 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 [2022-07-23 14:26:30,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,691 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) [2022-07-23 14:26:30,693 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 [2022-07-23 14:26:30,693 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 [2022-07-23 14:26:30,699 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,701 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,701 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,703 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,718 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 [2022-07-23 14:26:30,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,724 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) [2022-07-23 14:26:30,725 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 [2022-07-23 14:26:30,726 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 [2022-07-23 14:26:30,731 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,731 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,731 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,731 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,733 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,733 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,746 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,762 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 [2022-07-23 14:26:30,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,763 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) [2022-07-23 14:26:30,764 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 [2022-07-23 14:26:30,765 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 [2022-07-23 14:26:30,771 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,771 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-23 14:26:30,771 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,771 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,772 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,774 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-23 14:26:30,774 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-23 14:26:30,789 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,804 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 [2022-07-23 14:26:30,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,806 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) [2022-07-23 14:26:30,807 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 [2022-07-23 14:26:30,808 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 14:26:30,813 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,814 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,814 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,816 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,816 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,832 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2022-07-23 14:26:30,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,859 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) [2022-07-23 14:26:30,859 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 [2022-07-23 14:26:30,860 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 [2022-07-23 14:26:30,865 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,865 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,865 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,865 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,867 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,867 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Forceful destruction successful, exit code 0 [2022-07-23 14:26:30,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,900 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) [2022-07-23 14:26:30,900 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 [2022-07-23 14:26:30,901 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 [2022-07-23 14:26:30,906 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,906 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,906 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,906 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,910 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,910 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,935 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 14:26:30,962 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 [2022-07-23 14:26:30,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,964 INFO L229 MonitoredProcess]: Starting monitored process 16 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) [2022-07-23 14:26:30,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2022-07-23 14:26:30,966 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 [2022-07-23 14:26:30,971 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 14:26:30,972 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 14:26:30,972 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 14:26:30,972 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 14:26:30,974 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 14:26:30,974 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 14:26:30,986 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 14:26:30,993 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2022-07-23 14:26:30,993 INFO L444 ModelExtractionUtils]: 2 out of 7 variables were initially zero. Simplification set additionally 3 variables to zero. [2022-07-23 14:26:30,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:26:30,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:26:30,995 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 14:26:30,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2022-07-23 14:26:30,999 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 14:26:31,028 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 14:26:31,029 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 14:26:31,029 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1) = -1*v_rep(select (select #memory_int ULTIMATE.start_main_~x~0#1.base) ULTIMATE.start_main_~x~0#1.offset)_1 Supporting invariants [] [2022-07-23 14:26:31,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2022-07-23 14:26:31,078 INFO L293 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2022-07-23 14:26:31,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:26:31,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 14:26:31,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:26:31,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2022-07-23 14:26:31,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:26:31,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-23 14:26:31,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 14:26:31,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:26:31,225 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 [2022-07-23 14:26:31,226 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:26:31,273 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 11 states have internal predecessors, (17), 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 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 42 states and 56 transitions. Complement of second has 10 states. [2022-07-23 14:26:31,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-07-23 14:26:31,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:26:31,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2022-07-23 14:26:31,278 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 14:26:31,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:26:31,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 6 letters. Loop has 4 letters. [2022-07-23 14:26:31,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:26:31,279 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 2 letters. Loop has 8 letters. [2022-07-23 14:26:31,279 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 14:26:31,279 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 56 transitions. [2022-07-23 14:26:31,281 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-23 14:26:31,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 23 states and 35 transitions. [2022-07-23 14:26:31,283 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2022-07-23 14:26:31,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2022-07-23 14:26:31,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 35 transitions. [2022-07-23 14:26:31,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:26:31,284 INFO L369 hiAutomatonCegarLoop]: Abstraction has 23 states and 35 transitions. [2022-07-23 14:26:31,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 35 transitions. [2022-07-23 14:26:31,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2022-07-23 14:26:31,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.45) internal successors, (29), 19 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:26:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 29 transitions. [2022-07-23 14:26:31,298 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 29 transitions. [2022-07-23 14:26:31,298 INFO L374 stractBuchiCegarLoop]: Abstraction has 20 states and 29 transitions. [2022-07-23 14:26:31,299 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 14:26:31,299 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 29 transitions. [2022-07-23 14:26:31,299 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-23 14:26:31,300 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:26:31,300 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:26:31,300 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 14:26:31,300 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2022-07-23 14:26:31,300 INFO L752 eck$LassoCheckResult]: Stem: 127#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 128#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 131#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 126#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 135#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 132#L552-2 [2022-07-23 14:26:31,300 INFO L754 eck$LassoCheckResult]: Loop: 132#L552-2 assume !main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call write~int(0, main_~x~0#1.base, main_~x~0#1.offset, 4); 123#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 124#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 129#L552 assume !main_#t~short7#1; 132#L552-2 [2022-07-23 14:26:31,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 1 times [2022-07-23 14:26:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162780178] [2022-07-23 14:26:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,309 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,318 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:31,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1943531, now seen corresponding path program 2 times [2022-07-23 14:26:31,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069083092] [2022-07-23 14:26:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:26:31,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:26:31,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:26:31,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069083092] [2022-07-23 14:26:31,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069083092] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:26:31,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:26:31,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:26:31,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781931887] [2022-07-23 14:26:31,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:26:31,356 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 14:26:31,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:26:31,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:26:31,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:26:31,359 INFO L87 Difference]: Start difference. First operand 20 states and 29 transitions. cyclomatic complexity: 11 Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:26:31,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:26:31,377 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2022-07-23 14:26:31,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 14:26:31,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2022-07-23 14:26:31,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-23 14:26:31,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 20 states and 27 transitions. [2022-07-23 14:26:31,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2022-07-23 14:26:31,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2022-07-23 14:26:31,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 27 transitions. [2022-07-23 14:26:31,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:26:31,379 INFO L369 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-07-23 14:26:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 27 transitions. [2022-07-23 14:26:31,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-07-23 14:26:31,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 20 states have (on average 1.35) internal successors, (27), 19 states have internal predecessors, (27), 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) [2022-07-23 14:26:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 27 transitions. [2022-07-23 14:26:31,381 INFO L392 hiAutomatonCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-07-23 14:26:31,381 INFO L374 stractBuchiCegarLoop]: Abstraction has 20 states and 27 transitions. [2022-07-23 14:26:31,381 INFO L287 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-07-23 14:26:31,381 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 27 transitions. [2022-07-23 14:26:31,381 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-07-23 14:26:31,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:26:31,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:26:31,382 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 14:26:31,382 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-23 14:26:31,382 INFO L752 eck$LassoCheckResult]: Stem: 181#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 185#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 180#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 183#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 186#L552-2 [2022-07-23 14:26:31,382 INFO L754 eck$LassoCheckResult]: Loop: 186#L552-2 assume main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 187#L553 assume main_#t~mem8#1 < 0;havoc main_#t~mem8#1;call write~int(-5, main_~x~0#1.base, main_~x~0#1.offset, 4); 177#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 178#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 189#L552 assume !main_#t~short7#1; 186#L552-2 [2022-07-23 14:26:31,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,382 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 2 times [2022-07-23 14:26:31,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730081062] [2022-07-23 14:26:31,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,399 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:31,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,406 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:31,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,407 INFO L85 PathProgramCache]: Analyzing trace with hash 48745192, now seen corresponding path program 1 times [2022-07-23 14:26:31,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134473850] [2022-07-23 14:26:31,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 14:26:31,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 14:26:31,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 14:26:31,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134473850] [2022-07-23 14:26:31,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134473850] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 14:26:31,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 14:26:31,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-23 14:26:31,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68513740] [2022-07-23 14:26:31,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 14:26:31,466 INFO L769 eck$LassoCheckResult]: loop already infeasible [2022-07-23 14:26:31,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 14:26:31,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-23 14:26:31,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-23 14:26:31,466 INFO L87 Difference]: Start difference. First operand 20 states and 27 transitions. cyclomatic complexity: 9 Second operand has 4 states, 3 states have (on average 1.6666666666666667) 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) [2022-07-23 14:26:31,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 14:26:31,497 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2022-07-23 14:26:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-23 14:26:31,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 38 transitions. [2022-07-23 14:26:31,501 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2022-07-23 14:26:31,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 28 states and 36 transitions. [2022-07-23 14:26:31,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 22 [2022-07-23 14:26:31,502 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 28 [2022-07-23 14:26:31,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 36 transitions. [2022-07-23 14:26:31,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2022-07-23 14:26:31,502 INFO L369 hiAutomatonCegarLoop]: Abstraction has 28 states and 36 transitions. [2022-07-23 14:26:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states and 36 transitions. [2022-07-23 14:26:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 22. [2022-07-23 14:26:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 21 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 14:26:31,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2022-07-23 14:26:31,504 INFO L392 hiAutomatonCegarLoop]: Abstraction has 22 states and 28 transitions. [2022-07-23 14:26:31,504 INFO L374 stractBuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2022-07-23 14:26:31,504 INFO L287 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-07-23 14:26:31,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2022-07-23 14:26:31,505 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 9 [2022-07-23 14:26:31,505 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:26:31,505 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:26:31,505 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2022-07-23 14:26:31,505 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2022-07-23 14:26:31,506 INFO L752 eck$LassoCheckResult]: Stem: 233#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 234#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~short7#1, main_#t~mem8#1, main_#t~mem9#1, main_#t~mem10#1, main_#t~mem4#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;call write~int(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1; 239#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 245#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 243#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 229#L552-2 [2022-07-23 14:26:31,506 INFO L754 eck$LassoCheckResult]: Loop: 229#L552-2 assume main_#t~short7#1;havoc main_#t~mem5#1;havoc main_#t~mem6#1;havoc main_#t~short7#1;call main_#t~mem8#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 230#L553 assume main_#t~mem8#1 < 0;havoc main_#t~mem8#1;call write~int(-5, main_~x~0#1.base, main_~x~0#1.offset, 4); 235#L552-3 call main_#t~mem4#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4); 236#L551-1 assume !!(0 != main_#t~mem4#1);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := -5 <= main_#t~mem5#1; 238#L552 assume main_#t~short7#1;call main_#t~mem6#1 := read~int(main_~x~0#1.base, main_~x~0#1.offset, 4);main_#t~short7#1 := main_#t~mem6#1 <= 35; 229#L552-2 [2022-07-23 14:26:31,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,506 INFO L85 PathProgramCache]: Analyzing trace with hash 28695847, now seen corresponding path program 3 times [2022-07-23 14:26:31,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198177109] [2022-07-23 14:26:31,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,514 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:31,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:31,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,529 INFO L85 PathProgramCache]: Analyzing trace with hash 48745190, now seen corresponding path program 1 times [2022-07-23 14:26:31,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037474717] [2022-07-23 14:26:31,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,535 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,539 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:31,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:26:31,540 INFO L85 PathProgramCache]: Analyzing trace with hash 707540352, now seen corresponding path program 1 times [2022-07-23 14:26:31,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:26:31,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894829893] [2022-07-23 14:26:31,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:26:31,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:26:31,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,549 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:26:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:26:31,557 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:26:31,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 02:26:31 BoogieIcfgContainer [2022-07-23 14:26:31,865 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 14:26:31,865 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 14:26:31,865 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 14:26:31,865 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 14:26:31,866 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:26:29" (3/4) ... [2022-07-23 14:26:31,867 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 14:26:31,886 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 14:26:31,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 14:26:31,886 INFO L158 Benchmark]: Toolchain (without parser) took 3007.01ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 93.2MB in the beginning and 113.7MB in the end (delta: -20.5MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-07-23 14:26:31,886 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:26:31,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.39ms. Allocated memory is still 123.7MB. Free memory was 93.2MB in the beginning and 95.5MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 14:26:31,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.54ms. Allocated memory is still 123.7MB. Free memory was 95.5MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:26:31,887 INFO L158 Benchmark]: Boogie Preprocessor took 16.53ms. Allocated memory is still 123.7MB. Free memory was 94.0MB in the beginning and 92.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 14:26:31,887 INFO L158 Benchmark]: RCFGBuilder took 288.14ms. Allocated memory is still 123.7MB. Free memory was 92.9MB in the beginning and 82.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-23 14:26:31,888 INFO L158 Benchmark]: BuchiAutomizer took 2316.62ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 82.4MB in the beginning and 114.8MB in the end (delta: -32.3MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. [2022-07-23 14:26:31,888 INFO L158 Benchmark]: Witness Printer took 20.65ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 113.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 14:26:31,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 48.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.39ms. Allocated memory is still 123.7MB. Free memory was 93.2MB in the beginning and 95.5MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.54ms. Allocated memory is still 123.7MB. Free memory was 95.5MB in the beginning and 94.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 16.53ms. Allocated memory is still 123.7MB. Free memory was 94.0MB in the beginning and 92.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.14ms. Allocated memory is still 123.7MB. Free memory was 92.9MB in the beginning and 82.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 2316.62ms. Allocated memory was 123.7MB in the beginning and 155.2MB in the end (delta: 31.5MB). Free memory was 82.4MB in the beginning and 114.8MB in the end (delta: -32.3MB). Peak memory consumption was 41.1MB. Max. memory is 16.1GB. * Witness Printer took 20.65ms. Allocated memory is still 155.2MB. Free memory was 114.8MB in the beginning and 113.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (2 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * unknown-#memory_int-unknown[x][x] and consists of 6 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. The remainder module has 22 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 18 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 29 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital99 mio100 ax118 hnf100 lsp79 ukn77 mio100 lsp41 div100 bol100 ite100 ukn100 eq153 hnf91 smp85 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms 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: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 552]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {x=2, x=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@3b79b225=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@200c5fbd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@455b1f0d=-5, NULL=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@1164a65c=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57518121=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@67423044=-5, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@6a11a8ca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@7335ea89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTIdExpression@2a956296=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57518121=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 552]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 Loop: [L552] COND TRUE -5 <= *x && *x <= 35 [L553] EXPR \read(*x) [L553] COND TRUE *x < 0 [L554] *x = -5 [L551] EXPR \read(*x) [L551] COND TRUE *x != 0 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 [L552] EXPR \read(*x) [L552] -5 <= *x && *x <= 35 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 14:26:31,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)