./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaB15.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-restricted-15/PastaB15.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f --- Real Ultimate output --- This is Ultimate 0.2.2-?-2329fc7 [2023-02-14 03:09:18,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 03:09:18,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 03:09:18,193 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 03:09:18,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 03:09:18,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 03:09:18,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 03:09:18,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 03:09:18,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 03:09:18,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 03:09:18,204 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 03:09:18,206 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 03:09:18,206 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 03:09:18,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 03:09:18,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 03:09:18,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 03:09:18,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 03:09:18,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 03:09:18,218 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 03:09:18,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 03:09:18,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 03:09:18,222 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 03:09:18,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 03:09:18,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 03:09:18,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 03:09:18,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 03:09:18,231 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 03:09:18,232 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 03:09:18,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 03:09:18,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 03:09:18,234 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 03:09:18,234 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 03:09:18,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 03:09:18,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 03:09:18,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 03:09:18,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 03:09:18,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 03:09:18,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 03:09:18,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 03:09:18,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 03:09:18,247 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 03:09:18,248 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-14 03:09:18,276 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 03:09:18,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 03:09:18,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 03:09:18,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 03:09:18,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 03:09:18,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 03:09:18,278 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 03:09:18,278 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-14 03:09:18,278 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-14 03:09:18,278 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-14 03:09:18,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-14 03:09:18,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-14 03:09:18,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 03:09:18,280 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-14 03:09:18,280 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 03:09:18,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-14 03:09:18,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 03:09:18,280 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 03:09:18,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 03:09:18,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 03:09:18,281 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-14 03:09:18,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 856b26ed1b95b9c5e409c9e42274459ceef7cfabfe29e933603f5e3c1c7ce07f [2023-02-14 03:09:18,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 03:09:18,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 03:09:18,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 03:09:18,514 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 03:09:18,514 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 03:09:18,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-02-14 03:09:19,455 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 03:09:19,652 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 03:09:19,652 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaB15.c [2023-02-14 03:09:19,656 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e37153b1/8f2a73f07b5f4cff8e0c57f7acf7ff92/FLAG414b2c242 [2023-02-14 03:09:19,670 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e37153b1/8f2a73f07b5f4cff8e0c57f7acf7ff92 [2023-02-14 03:09:19,672 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 03:09:19,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 03:09:19,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 03:09:19,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 03:09:19,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 03:09:19,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217f39cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19, skipping insertion in model container [2023-02-14 03:09:19,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 03:09:19,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 03:09:19,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:09:19,793 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 03:09:19,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 03:09:19,809 INFO L208 MainTranslator]: Completed translation [2023-02-14 03:09:19,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19 WrapperNode [2023-02-14 03:09:19,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 03:09:19,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 03:09:19,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 03:09:19,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 03:09:19,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,829 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-02-14 03:09:19,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 03:09:19,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 03:09:19,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 03:09:19,830 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 03:09:19,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,838 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,840 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 03:09:19,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 03:09:19,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 03:09:19,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 03:09:19,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (1/1) ... [2023-02-14 03:09:19,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:19,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:19,869 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:09:19,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-02-14 03:09:19,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 03:09:19,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 03:09:19,949 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 03:09:19,950 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 03:09:19,991 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 03:09:19,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 03:09:19,995 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-14 03:09:19,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:09:19 BoogieIcfgContainer [2023-02-14 03:09:19,996 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 03:09:19,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-14 03:09:19,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-14 03:09:19,999 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-14 03:09:20,000 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:09:20,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.02 03:09:19" (1/3) ... [2023-02-14 03:09:20,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2071688d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:09:20, skipping insertion in model container [2023-02-14 03:09:20,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:09:20,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 03:09:19" (2/3) ... [2023-02-14 03:09:20,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2071688d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.02 03:09:20, skipping insertion in model container [2023-02-14 03:09:20,001 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-14 03:09:20,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:09:19" (3/3) ... [2023-02-14 03:09:20,002 INFO L332 chiAutomizerObserver]: Analyzing ICFG PastaB15.c [2023-02-14 03:09:20,036 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-14 03:09:20,036 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-14 03:09:20,036 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-14 03:09:20,036 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-14 03:09:20,036 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-14 03:09:20,036 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-14 03:09:20,036 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-14 03:09:20,037 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-14 03:09:20,039 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:20,056 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:09:20,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:09:20,057 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:09:20,060 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:09:20,060 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:09:20,060 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-14 03:09:20,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:20,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-02-14 03:09:20,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:09:20,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:09:20,063 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:09:20,063 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-02-14 03:09:20,068 INFO L748 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 7#L14-3true [2023-02-14 03:09:20,069 INFO L750 eck$LassoCheckResult]: Loop: 7#L14-3true assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1); 8#L14-2true assume !(main_~y~0#1 > main_~z~0#1); 7#L14-3true [2023-02-14 03:09:20,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:20,072 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-14 03:09:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:20,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231209172] [2023-02-14 03:09:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:20,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:20,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,156 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:20,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:20,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1320, now seen corresponding path program 1 times [2023-02-14 03:09:20,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:20,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859337957] [2023-02-14 03:09:20,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:20,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:20,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:09:20,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 03:09:20,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859337957] [2023-02-14 03:09:20,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859337957] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 03:09:20,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 03:09:20,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-02-14 03:09:20,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29574659] [2023-02-14 03:09:20,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 03:09:20,259 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-02-14 03:09:20,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 03:09:20,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-14 03:09:20,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-14 03:09:20,287 INFO L87 Difference]: Start difference. First operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.0) internal successors, (2), 2 states have internal predecessors, (2), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 03:09:20,319 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2023-02-14 03:09:20,320 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-14 03:09:20,321 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 03:09:20,322 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 5 states and 6 transitions. [2023-02-14 03:09:20,323 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2023-02-14 03:09:20,323 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2023-02-14 03:09:20,323 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 6 transitions. [2023-02-14 03:09:20,323 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:09:20,323 INFO L218 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-14 03:09:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 6 transitions. [2023-02-14 03:09:20,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-02-14 03:09:20,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:20,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2023-02-14 03:09:20,340 INFO L240 hiAutomatonCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-14 03:09:20,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-14 03:09:20,359 INFO L428 stractBuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2023-02-14 03:09:20,359 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-14 03:09:20,359 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2023-02-14 03:09:20,360 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-14 03:09:20,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-14 03:09:20,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-14 03:09:20,360 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-14 03:09:20,360 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-14 03:09:20,360 INFO L748 eck$LassoCheckResult]: Stem: 26#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true; 27#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 28#L14-3 [2023-02-14 03:09:20,360 INFO L750 eck$LassoCheckResult]: Loop: 28#L14-3 assume !!(main_~x~0#1 == main_~y~0#1 && main_~x~0#1 > main_~z~0#1); 29#L14-2 assume !!(main_~y~0#1 > main_~z~0#1);main_~x~0#1 := main_~x~0#1 - 1;main_~y~0#1 := main_~y~0#1 - 1; 30#L14-2 assume !(main_~y~0#1 > main_~z~0#1); 28#L14-3 [2023-02-14 03:09:20,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:20,361 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-02-14 03:09:20,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:20,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680376322] [2023-02-14 03:09:20,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:20,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,364 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:20,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:20,366 INFO L85 PathProgramCache]: Analyzing trace with hash 41000, now seen corresponding path program 1 times [2023-02-14 03:09:20,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:20,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431778505] [2023-02-14 03:09:20,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:20,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,371 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:20,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,396 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:20,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:20,396 INFO L85 PathProgramCache]: Analyzing trace with hash 28699942, now seen corresponding path program 1 times [2023-02-14 03:09:20,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 03:09:20,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506419132] [2023-02-14 03:09:20,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 03:09:20,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 03:09:20,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,416 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-14 03:09:20,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-14 03:09:20,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-14 03:09:20,490 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:09:20,491 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:09:20,491 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:09:20,491 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:09:20,491 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-14 03:09:20,492 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:20,492 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:09:20,492 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:09:20,492 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2023-02-14 03:09:20,492 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:09:20,492 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:09:20,506 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:09:20,521 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:09:20,524 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:09:20,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:09:20,578 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-14 03:09:20,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:20,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:20,582 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:09:20,591 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-14 03:09:20,591 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:20,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-02-14 03:09:20,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-02-14 03:09:20,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:20,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:20,609 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:09:20,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-02-14 03:09:20,615 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-14 03:09:20,615 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-14 03:09:20,820 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-14 03:09:20,824 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-02-14 03:09:20,824 INFO L210 LassoAnalysis]: Preferences: [2023-02-14 03:09:20,825 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-14 03:09:20,825 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-14 03:09:20,825 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-14 03:09:20,825 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-14 03:09:20,825 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:20,825 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-14 03:09:20,825 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-14 03:09:20,825 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaB15.c_Iteration2_Loop [2023-02-14 03:09:20,825 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-14 03:09:20,825 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-14 03:09:20,827 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:09:20,837 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:09:20,839 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-14 03:09:20,901 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-14 03:09:20,905 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-14 03:09:20,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:20,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:20,907 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:09:20,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-02-14 03:09:20,911 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2023-02-14 03:09:20,917 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-14 03:09:20,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-14 03:09:20,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-14 03:09:20,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-14 03:09:20,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-14 03:09:20,921 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-14 03:09:20,921 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-14 03:09:20,937 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-14 03:09:20,945 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2023-02-14 03:09:20,945 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-02-14 03:09:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-14 03:09:20,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 03:09:20,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-14 03:09:20,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-02-14 03:09:20,991 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-14 03:09:20,991 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-14 03:09:20,992 INFO L513 LassoAnalysis]: Proved termination. [2023-02-14 03:09:20,992 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1, ULTIMATE.start_main_~z~0#1) = 1*ULTIMATE.start_main_~y~0#1 - 1*ULTIMATE.start_main_~z~0#1 Supporting invariants [] [2023-02-14 03:09:21,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-02-14 03:09:21,006 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-14 03:09:21,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 03:09:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:21,032 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-14 03:09:21,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:09:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 03:09:21,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-14 03:09:21,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 03:09:21,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 03:09:21,106 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2023-02-14 03:09:21,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2 Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:21,132 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 6 transitions. cyclomatic complexity: 2. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 9 states and 10 transitions. Complement of second has 6 states. [2023-02-14 03:09:21,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-14 03:09:21,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-14 03:09:21,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2023-02-14 03:09:21,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-14 03:09:21,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:21,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-14 03:09:21,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:21,136 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-14 03:09:21,136 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-14 03:09:21,136 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2023-02-14 03:09:21,138 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:09:21,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2023-02-14 03:09:21,139 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-14 03:09:21,139 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-14 03:09:21,139 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-14 03:09:21,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-14 03:09:21,139 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:21,139 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:21,139 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 03:09:21,139 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-02-14 03:09:21,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-14 03:09:21,140 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-14 03:09:21,140 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-14 03:09:21,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.02 03:09:21 BoogieIcfgContainer [2023-02-14 03:09:21,146 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-14 03:09:21,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 03:09:21,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 03:09:21,147 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 03:09:21,147 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 03:09:19" (3/4) ... [2023-02-14 03:09:21,149 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-14 03:09:21,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 03:09:21,151 INFO L158 Benchmark]: Toolchain (without parser) took 1475.53ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 118.6MB in the end (delta: 6.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-02-14 03:09:21,151 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:09:21,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 135.14ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 116.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-14 03:09:21,155 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.15ms. Allocated memory is still 159.4MB. Free memory was 116.5MB in the beginning and 114.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:09:21,156 INFO L158 Benchmark]: Boogie Preprocessor took 12.00ms. Allocated memory is still 159.4MB. Free memory was 114.8MB in the beginning and 113.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 03:09:21,156 INFO L158 Benchmark]: RCFGBuilder took 153.75ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 105.8MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-14 03:09:21,169 INFO L158 Benchmark]: BuchiAutomizer took 1149.55ms. Allocated memory is still 159.4MB. Free memory was 105.2MB in the beginning and 118.6MB in the end (delta: -13.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:09:21,169 INFO L158 Benchmark]: Witness Printer took 2.41ms. Allocated memory is still 159.4MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 03:09:21,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 113.2MB. Free memory is still 89.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 135.14ms. Allocated memory is still 159.4MB. Free memory was 125.6MB in the beginning and 116.5MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.15ms. Allocated memory is still 159.4MB. Free memory was 116.5MB in the beginning and 114.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.00ms. Allocated memory is still 159.4MB. Free memory was 114.8MB in the beginning and 113.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 153.75ms. Allocated memory is still 159.4MB. Free memory was 113.6MB in the beginning and 105.8MB in the end (delta: 7.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1149.55ms. Allocated memory is still 159.4MB. Free memory was 105.2MB in the beginning and 118.6MB in the end (delta: -13.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.41ms. Allocated memory is still 159.4MB. Free memory is still 118.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 10 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax154 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq172 hnf92 smp77 dnf100 smp100 tf107 neg96 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 86ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-14 03:09:21,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-02-14 03:09:21,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE