./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/a.06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 26d01a9c 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/a.06.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 90244b6c2e1b1f029f80e9cfc86fb57c09347d52a85284d5d619fffbbf31f641 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 08:59:54,277 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 08:59:54,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 08:59:54,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 08:59:54,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 08:59:54,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 08:59:54,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 08:59:54,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 08:59:54,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 08:59:54,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 08:59:54,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 08:59:54,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 08:59:54,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 08:59:54,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 08:59:54,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 08:59:54,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 08:59:54,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 08:59:54,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 08:59:54,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 08:59:54,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 08:59:54,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 08:59:54,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 08:59:54,335 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 08:59:54,336 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 08:59:54,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 08:59:54,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 08:59:54,348 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 08:59:54,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 08:59:54,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 08:59:54,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 08:59:54,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 08:59:54,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 08:59:54,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 08:59:54,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 08:59:54,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 08:59:54,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 08:59:54,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 08:59:54,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 08:59:54,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 08:59:54,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 08:59:54,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 08:59:54,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-18 08:59:54,384 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 08:59:54,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 08:59:54,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 08:59:54,384 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 08:59:54,386 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 08:59:54,386 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 08:59:54,386 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 08:59:54,386 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-18 08:59:54,386 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-18 08:59:54,386 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-18 08:59:54,387 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-18 08:59:54,387 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-18 08:59:54,387 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-18 08:59:54,387 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 08:59:54,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 08:59:54,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 08:59:54,388 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 08:59:54,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-18 08:59:54,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-18 08:59:54,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-18 08:59:54,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 08:59:54,388 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-18 08:59:54,389 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 08:59:54,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-18 08:59:54,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 08:59:54,389 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 08:59:54,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 08:59:54,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 08:59:54,391 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-18 08:59:54,391 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90244b6c2e1b1f029f80e9cfc86fb57c09347d52a85284d5d619fffbbf31f641 [2023-02-18 08:59:54,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 08:59:54,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 08:59:54,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 08:59:54,656 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 08:59:54,657 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 08:59:54,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/a.06.c [2023-02-18 08:59:55,732 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 08:59:55,897 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 08:59:55,898 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/a.06.c [2023-02-18 08:59:55,902 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d9967de/db89749560844fbd944d5f39fba40f47/FLAGc33d001dc [2023-02-18 08:59:55,915 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0d9967de/db89749560844fbd944d5f39fba40f47 [2023-02-18 08:59:55,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 08:59:55,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 08:59:55,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 08:59:55,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 08:59:55,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 08:59:55,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:59:55" (1/1) ... [2023-02-18 08:59:55,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3996f02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:55, skipping insertion in model container [2023-02-18 08:59:55,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 08:59:55" (1/1) ... [2023-02-18 08:59:55,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 08:59:55,938 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 08:59:56,042 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:59:56,047 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 08:59:56,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 08:59:56,071 INFO L208 MainTranslator]: Completed translation [2023-02-18 08:59:56,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56 WrapperNode [2023-02-18 08:59:56,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 08:59:56,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 08:59:56,073 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 08:59:56,073 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 08:59:56,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,099 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-02-18 08:59:56,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 08:59:56,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 08:59:56,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 08:59:56,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 08:59:56,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 08:59:56,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 08:59:56,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 08:59:56,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 08:59:56,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (1/1) ... [2023-02-18 08:59:56,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:56,154 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) [2023-02-18 08:59:56,175 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 [2023-02-18 08:59:56,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 08:59:56,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 08:59:56,250 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 08:59:56,252 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 08:59:56,340 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 08:59:56,346 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 08:59:56,346 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 08:59:56,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:59:56 BoogieIcfgContainer [2023-02-18 08:59:56,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 08:59:56,349 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-18 08:59:56,349 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-18 08:59:56,352 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-18 08:59:56,354 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:59:56,354 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.02 08:59:55" (1/3) ... [2023-02-18 08:59:56,355 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ebb66ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:59:56, skipping insertion in model container [2023-02-18 08:59:56,355 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:59:56,355 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 08:59:56" (2/3) ... [2023-02-18 08:59:56,356 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ebb66ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.02 08:59:56, skipping insertion in model container [2023-02-18 08:59:56,356 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-18 08:59:56,356 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:59:56" (3/3) ... [2023-02-18 08:59:56,358 INFO L332 chiAutomizerObserver]: Analyzing ICFG a.06.c [2023-02-18 08:59:56,414 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-18 08:59:56,414 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-18 08:59:56,414 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-18 08:59:56,414 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-18 08:59:56,414 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-18 08:59:56,414 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-18 08:59:56,414 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-18 08:59:56,414 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-18 08:59:56,417 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-02-18 08:59:56,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-18 08:59:56,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:59:56,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:59:56,434 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:59:56,434 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-18 08:59:56,434 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-18 08:59:56,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2023-02-18 08:59:56,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2023-02-18 08:59:56,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-18 08:59:56,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-18 08:59:56,435 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-18 08:59:56,435 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2023-02-18 08:59:56,441 INFO L748 eck$LassoCheckResult]: Stem: 6#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~c~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;havoc main_~c~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~z~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~c~0#1 := 0; 2#L12-2true [2023-02-18 08:59:56,442 INFO L750 eck$LassoCheckResult]: Loop: 2#L12-2true assume !!(((((main_~y~0#1 >= 0 && main_~z~0#1 < 2147483647 - main_~y~0#1) || (main_~y~0#1 < 0 && main_~z~0#1 > -2147483648 - main_~y~0#1)) && main_~x~0#1 > main_~y~0#1 + main_~z~0#1) && main_~y~0#1 < 2147483647) && main_~z~0#1 < 2147483647);main_~y~0#1 := 1 + main_~y~0#1;main_~z~0#1 := 1 + main_~z~0#1; 2#L12-2true [2023-02-18 08:59:56,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:59:56,446 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-18 08:59:56,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:59:56,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413736102] [2023-02-18 08:59:56,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:59:56,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:59:56,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:59:56,512 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:59:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:59:56,529 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:59:56,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:59:56,533 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2023-02-18 08:59:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:59:56,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180177784] [2023-02-18 08:59:56,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:59:56,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:59:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:59:56,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:59:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:59:56,583 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:59:56,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:59:56,592 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2023-02-18 08:59:56,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 08:59:56,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397758755] [2023-02-18 08:59:56,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 08:59:56,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 08:59:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:59:56,605 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-18 08:59:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-18 08:59:56,621 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-18 08:59:56,652 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:59:56,653 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:59:56,653 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:59:56,653 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:59:56,654 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-18 08:59:56,654 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,654 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:59:56,654 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:59:56,654 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2023-02-18 08:59:56,654 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:59:56,655 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:59:56,677 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:59:56,685 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:59:56,687 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:59:56,719 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:59:56,720 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-18 08:59:56,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:56,725 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) [2023-02-18 08:59:56,726 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 [2023-02-18 08:59:56,728 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:59:56,728 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:59:56,756 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:59:56,756 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:59:56,763 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 [2023-02-18 08:59:56,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:56,766 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) [2023-02-18 08:59:56,769 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 [2023-02-18 08:59:56,771 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:59:56,771 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:59:56,789 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-18 08:59:56,789 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-18 08:59:56,792 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-02-18 08:59:56,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:56,794 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) [2023-02-18 08:59:56,797 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 [2023-02-18 08:59:56,798 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-18 08:59:56,798 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:59:56,841 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 [2023-02-18 08:59:56,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:56,846 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) [2023-02-18 08:59:56,854 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-18 08:59:56,854 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-18 08:59:56,889 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 [2023-02-18 08:59:56,901 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-18 08:59:56,906 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 [2023-02-18 08:59:56,907 INFO L210 LassoAnalysis]: Preferences: [2023-02-18 08:59:56,907 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-18 08:59:56,907 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-18 08:59:56,907 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-18 08:59:56,907 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-18 08:59:56,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-18 08:59:56,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-18 08:59:56,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: a.06.c_Iteration1_Loop [2023-02-18 08:59:56,907 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-18 08:59:56,907 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-18 08:59:56,910 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:59:56,915 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:59:56,917 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-18 08:59:56,924 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-18 08:59:56,934 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-18 08:59:56,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:56,949 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:59:56,958 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 [2023-02-18 08:59:56,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-02-18 08:59:56,965 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:59:56,965 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:59:56,965 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:59:56,966 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:59:56,969 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:59:56,969 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:59:56,985 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:59:56,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-02-18 08:59:56,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:56,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:57,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:59:57,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-02-18 08:59:57,004 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 [2023-02-18 08:59:57,010 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:59:57,010 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:59:57,010 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-18 08:59:57,010 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:59:57,013 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2023-02-18 08:59:57,013 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2023-02-18 08:59:57,023 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-18 08:59:57,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-02-18 08:59:57,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:57,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:57,028 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:59:57,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-02-18 08:59:57,031 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 [2023-02-18 08:59:57,038 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-18 08:59:57,038 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-18 08:59:57,038 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-18 08:59:57,038 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2023-02-18 08:59:57,038 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-18 08:59:57,045 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2023-02-18 08:59:57,045 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-18 08:59:57,063 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-18 08:59:57,068 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-02-18 08:59:57,068 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-18 08:59:57,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-18 08:59:57,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 08:59:57,105 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-18 08:59:57,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2023-02-18 08:59:57,120 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-18 08:59:57,121 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-18 08:59:57,121 INFO L513 LassoAnalysis]: Proved termination. [2023-02-18 08:59:57,121 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0#1) = -2*ULTIMATE.start_main_~y~0#1 + 4294967293 Supporting invariants [] [2023-02-18 08:59:57,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2023-02-18 08:59:57,129 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-18 08:59:57,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 08:59:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:59:57,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-18 08:59:57,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:59:57,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 08:59:57,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 08:59:57,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 08:59:57,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 08:59:57,222 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2023-02-18 08:59:57,257 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:59:57,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2023-02-18 08:59:57,328 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 16 states and 19 transitions. Complement of second has 5 states. [2023-02-18 08:59:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2023-02-18 08:59:57,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 08:59:57,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2023-02-18 08:59:57,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 1 letters. [2023-02-18 08:59:57,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:59:57,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 1 letters. [2023-02-18 08:59:57,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:59:57,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 2 letters. [2023-02-18 08:59:57,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-18 08:59:57,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2023-02-18 08:59:57,339 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:59:57,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2023-02-18 08:59:57,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-18 08:59:57,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-18 08:59:57,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-18 08:59:57,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-18 08:59:57,343 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:59:57,343 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:59:57,344 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 08:59:57,344 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-18 08:59:57,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-18 08:59:57,344 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-18 08:59:57,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-18 08:59:57,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.02 08:59:57 BoogieIcfgContainer [2023-02-18 08:59:57,352 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-18 08:59:57,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 08:59:57,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 08:59:57,355 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 08:59:57,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 08:59:56" (3/4) ... [2023-02-18 08:59:57,358 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 08:59:57,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 08:59:57,360 INFO L158 Benchmark]: Toolchain (without parser) took 1441.78ms. Allocated memory is still 157.3MB. Free memory was 128.1MB in the beginning and 124.6MB in the end (delta: 3.5MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-02-18 08:59:57,361 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory was 91.3MB in the beginning and 91.2MB in the end (delta: 84.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:59:57,366 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.89ms. Allocated memory is still 157.3MB. Free memory was 127.7MB in the beginning and 118.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-18 08:59:57,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.43ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 117.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 08:59:57,368 INFO L158 Benchmark]: Boogie Preprocessor took 19.14ms. Allocated memory is still 157.3MB. Free memory was 117.2MB in the beginning and 116.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:59:57,368 INFO L158 Benchmark]: RCFGBuilder took 227.76ms. Allocated memory is still 157.3MB. Free memory was 116.2MB in the beginning and 107.8MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-02-18 08:59:57,368 INFO L158 Benchmark]: BuchiAutomizer took 1002.55ms. Allocated memory is still 157.3MB. Free memory was 107.8MB in the beginning and 124.6MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:59:57,369 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 157.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 08:59:57,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 119.5MB. Free memory was 91.3MB in the beginning and 91.2MB in the end (delta: 84.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.89ms. Allocated memory is still 157.3MB. Free memory was 127.7MB in the beginning and 118.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.43ms. Allocated memory is still 157.3MB. Free memory was 118.6MB in the beginning and 117.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.14ms. Allocated memory is still 157.3MB. Free memory was 117.2MB in the beginning and 116.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 227.76ms. Allocated memory is still 157.3MB. Free memory was 116.2MB in the beginning and 107.8MB in the end (delta: 8.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 1002.55ms. Allocated memory is still 157.3MB. Free memory was 107.8MB in the beginning and 124.6MB in the end (delta: -16.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 157.3MB. Free memory is still 124.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * y + 4294967293 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 5 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital44 mio100 ax127 hnf100 lsp112 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq119 hnf97 smp100 dnf115 smp100 tf102 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 49ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2023-02-18 08:59:57,399 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE