./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted-lit/aviad.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 574ddb4e 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-crafted-lit/aviad.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 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-19 00:14:28,428 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-19 00:14:28,430 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-19 00:14:28,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-19 00:14:28,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-19 00:14:28,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-19 00:14:28,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-19 00:14:28,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-19 00:14:28,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-19 00:14:28,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-19 00:14:28,477 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-19 00:14:28,479 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-19 00:14:28,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-19 00:14:28,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-19 00:14:28,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-19 00:14:28,482 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-19 00:14:28,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-19 00:14:28,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-19 00:14:28,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-19 00:14:28,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-19 00:14:28,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-19 00:14:28,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-19 00:14:28,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-19 00:14:28,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-19 00:14:28,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-19 00:14:28,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-19 00:14:28,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-19 00:14:28,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-19 00:14:28,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-19 00:14:28,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-19 00:14:28,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-19 00:14:28,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-19 00:14:28,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-19 00:14:28,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-19 00:14:28,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-19 00:14:28,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-19 00:14:28,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-19 00:14:28,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-19 00:14:28,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-19 00:14:28,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-19 00:14:28,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-19 00:14:28,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2023-02-19 00:14:28,539 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-19 00:14:28,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-19 00:14:28,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-19 00:14:28,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-19 00:14:28,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-19 00:14:28,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-19 00:14:28,541 INFO L138 SettingsManager]: * Use SBE=true [2023-02-19 00:14:28,542 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-02-19 00:14:28,542 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-02-19 00:14:28,542 INFO L138 SettingsManager]: * Use old map elimination=false [2023-02-19 00:14:28,542 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2023-02-19 00:14:28,542 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2023-02-19 00:14:28,543 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-02-19 00:14:28,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-19 00:14:28,543 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-19 00:14:28,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-19 00:14:28,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-19 00:14:28,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-02-19 00:14:28,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-02-19 00:14:28,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-02-19 00:14:28,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-19 00:14:28,544 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-02-19 00:14:28,544 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-19 00:14:28,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-02-19 00:14:28,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-19 00:14:28,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-19 00:14:28,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-19 00:14:28,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-19 00:14:28,546 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-02-19 00:14:28,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 212c9b1b6a93f8f17548e7937584929a6b6ed1677eb6287f5deae898fbaeb3a4 [2023-02-19 00:14:28,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-19 00:14:28,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-19 00:14:28,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-19 00:14:28,770 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-19 00:14:28,770 INFO L275 PluginConnector]: CDTParser initialized [2023-02-19 00:14:28,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/aviad.c [2023-02-19 00:14:29,644 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-19 00:14:29,768 INFO L351 CDTParser]: Found 1 translation units. [2023-02-19 00:14:29,769 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/aviad.c [2023-02-19 00:14:29,772 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1503e4294/8478f8addd744678b2bff25487baaf40/FLAGcdbceaa29 [2023-02-19 00:14:29,783 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1503e4294/8478f8addd744678b2bff25487baaf40 [2023-02-19 00:14:29,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-19 00:14:29,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-19 00:14:29,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-19 00:14:29,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-19 00:14:29,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-19 00:14:29,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@644c8947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29, skipping insertion in model container [2023-02-19 00:14:29,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-19 00:14:29,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-19 00:14:29,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-19 00:14:29,899 INFO L203 MainTranslator]: Completed pre-run [2023-02-19 00:14:29,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-19 00:14:29,916 INFO L208 MainTranslator]: Completed translation [2023-02-19 00:14:29,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29 WrapperNode [2023-02-19 00:14:29,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-19 00:14:29,918 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-19 00:14:29,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-19 00:14:29,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-19 00:14:29,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,937 INFO L138 Inliner]: procedures = 5, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2023-02-19 00:14:29,938 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-19 00:14:29,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-19 00:14:29,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-19 00:14:29,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-19 00:14:29,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,954 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-19 00:14:29,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-19 00:14:29,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-19 00:14:29,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-19 00:14:29,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (1/1) ... [2023-02-19 00:14:29,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:29,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:29,982 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) [2023-02-19 00:14:30,051 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 [2023-02-19 00:14:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-19 00:14:30,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-19 00:14:30,119 INFO L235 CfgBuilder]: Building ICFG [2023-02-19 00:14:30,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-19 00:14:30,213 INFO L276 CfgBuilder]: Performing block encoding [2023-02-19 00:14:30,219 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-19 00:14:30,219 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-19 00:14:30,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:14:30 BoogieIcfgContainer [2023-02-19 00:14:30,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-19 00:14:30,222 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-02-19 00:14:30,222 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2023-02-19 00:14:30,224 INFO L275 PluginConnector]: BuchiAutomizer initialized [2023-02-19 00:14:30,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-19 00:14:30,225 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.02 12:14:29" (1/3) ... [2023-02-19 00:14:30,225 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c9395bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.02 12:14:30, skipping insertion in model container [2023-02-19 00:14:30,225 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-19 00:14:30,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.02 12:14:29" (2/3) ... [2023-02-19 00:14:30,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c9395bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.02 12:14:30, skipping insertion in model container [2023-02-19 00:14:30,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-02-19 00:14:30,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:14:30" (3/3) ... [2023-02-19 00:14:30,227 INFO L332 chiAutomizerObserver]: Analyzing ICFG aviad.c [2023-02-19 00:14:30,263 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-02-19 00:14:30,263 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-02-19 00:14:30,263 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-02-19 00:14:30,263 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-02-19 00:14:30,264 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-02-19 00:14:30,264 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-02-19 00:14:30,264 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-02-19 00:14:30,264 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-02-19 00:14:30,269 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-19 00:14:30,279 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-19 00:14:30,280 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-19 00:14:30,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-19 00:14:30,283 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-19 00:14:30,283 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-19 00:14:30,283 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-02-19 00:14:30,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-19 00:14:30,285 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-02-19 00:14:30,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-02-19 00:14:30,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-02-19 00:14:30,286 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-02-19 00:14:30,286 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-02-19 00:14:30,291 INFO L748 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~ret2#1, main_~x~0#1, main_~count~1#1;main_~x~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;assume { :begin_inline_f } true;f_#in~a#1 := main_~x~0#1;havoc f_#res#1;havoc f_#t~post0#1, f_~a#1, f_~tmp~0#1, f_~count~0#1;f_~a#1 := f_#in~a#1;havoc f_~tmp~0#1;f_~count~0#1 := 0; 10#L11-2true [2023-02-19 00:14:30,291 INFO L750 eck$LassoCheckResult]: Loop: 10#L11-2true assume !!(f_~a#1 > 1);f_~tmp~0#1 := (if f_~a#1 < 0 && 0 != f_~a#1 % 2 then f_~a#1 % 2 - 2 else f_~a#1 % 2); 3#L13true assume !(0 == f_~tmp~0#1);f_~a#1 := f_~a#1 - 1; 6#L13-2true f_#t~post0#1 := f_~count~0#1;f_~count~0#1 := 1 + f_#t~post0#1;havoc f_#t~post0#1; 10#L11-2true [2023-02-19 00:14:30,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:14:30,294 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-02-19 00:14:30,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:14:30,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019168483] [2023-02-19 00:14:30,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:14:30,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:14:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:14:30,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-19 00:14:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:14:30,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-19 00:14:30,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:14:30,354 INFO L85 PathProgramCache]: Analyzing trace with hash 40876, now seen corresponding path program 1 times [2023-02-19 00:14:30,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:14:30,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137114460] [2023-02-19 00:14:30,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:14:30,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:14:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:14:30,367 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-19 00:14:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:14:30,373 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-19 00:14:30,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:14:30,374 INFO L85 PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times [2023-02-19 00:14:30,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-19 00:14:30,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443127194] [2023-02-19 00:14:30,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-19 00:14:30,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-19 00:14:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:14:30,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-19 00:14:30,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-19 00:14:30,392 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-19 00:14:30,416 INFO L210 LassoAnalysis]: Preferences: [2023-02-19 00:14:30,416 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-19 00:14:30,428 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-19 00:14:30,428 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-19 00:14:30,429 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-02-19 00:14:30,429 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,429 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-19 00:14:30,429 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-19 00:14:30,429 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad.c_Iteration1_Loop [2023-02-19 00:14:30,429 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-19 00:14:30,429 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-19 00:14:30,443 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:14:30,449 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:14:30,450 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:14:30,462 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-19 00:14:30,471 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-19 00:14:30,471 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-02-19 00:14:30,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,474 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) [2023-02-19 00:14:30,475 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 [2023-02-19 00:14:30,478 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-19 00:14:30,478 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:14:30,497 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-02-19 00:14:30,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,499 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) [2023-02-19 00:14:30,500 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 [2023-02-19 00:14:30,503 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-19 00:14:30,503 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:14:30,537 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-19 00:14:30,537 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_~count~0#1=0} Honda state: {ULTIMATE.start_f_~count~0#1=0} Generalized eigenvectors: [{ULTIMATE.start_f_~count~0#1=-1}, {ULTIMATE.start_f_~count~0#1=1}, {ULTIMATE.start_f_~count~0#1=1}] Lambdas: [2, 0, 1] Nus: [1, 1] [2023-02-19 00:14:30,543 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 [2023-02-19 00:14:30,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,545 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) [2023-02-19 00:14:30,547 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 [2023-02-19 00:14:30,548 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-19 00:14:30,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:14:30,573 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-02-19 00:14:30,573 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_f_#t~post0#1=0} Honda state: {ULTIMATE.start_f_#t~post0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-02-19 00:14:30,583 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 [2023-02-19 00:14:30,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,584 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) [2023-02-19 00:14:30,586 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 [2023-02-19 00:14:30,587 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-02-19 00:14:30,588 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:14:30,644 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 [2023-02-19 00:14:30,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,646 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) [2023-02-19 00:14:30,646 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 [2023-02-19 00:14:30,651 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-02-19 00:14:30,651 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-02-19 00:14:30,755 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-02-19 00:14:30,761 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 [2023-02-19 00:14:30,762 INFO L210 LassoAnalysis]: Preferences: [2023-02-19 00:14:30,762 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-02-19 00:14:30,762 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-02-19 00:14:30,762 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-02-19 00:14:30,762 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-02-19 00:14:30,762 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,762 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-02-19 00:14:30,762 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-02-19 00:14:30,762 INFO L133 ssoRankerPreferences]: Filename of dumped script: aviad.c_Iteration1_Loop [2023-02-19 00:14:30,762 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-02-19 00:14:30,762 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-02-19 00:14:30,764 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:14:30,766 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:14:30,767 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-02-19 00:14:30,772 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2023-02-19 00:14:30,778 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-02-19 00:14:30,782 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-02-19 00:14:30,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,784 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) [2023-02-19 00:14:30,787 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 [2023-02-19 00:14:30,789 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 [2023-02-19 00:14:30,796 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-19 00:14:30,796 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-19 00:14:30,796 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-19 00:14:30,797 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-19 00:14:30,797 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-19 00:14:30,798 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-19 00:14:30,798 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-19 00:14:30,813 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-19 00:14:30,818 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 [2023-02-19 00:14:30,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,820 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) [2023-02-19 00:14:30,822 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 [2023-02-19 00:14:30,823 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 [2023-02-19 00:14:30,829 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-19 00:14:30,829 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-19 00:14:30,829 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-19 00:14:30,830 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-02-19 00:14:30,830 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-19 00:14:30,830 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-02-19 00:14:30,830 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-19 00:14:30,845 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-02-19 00:14:30,850 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 [2023-02-19 00:14:30,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:30,852 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) [2023-02-19 00:14:30,854 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 [2023-02-19 00:14:30,855 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 [2023-02-19 00:14:30,861 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-02-19 00:14:30,861 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-02-19 00:14:30,862 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-02-19 00:14:30,862 INFO L204 nArgumentSynthesizer]: 16 loop disjuncts [2023-02-19 00:14:30,862 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-02-19 00:14:30,915 INFO L401 nArgumentSynthesizer]: We have 32 Motzkin's Theorem applications. [2023-02-19 00:14:30,915 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-02-19 00:14:30,968 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-02-19 00:14:30,978 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2023-02-19 00:14:30,978 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-02-19 00:14:30,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-02-19 00:14:30,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-19 00:14:31,031 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-02-19 00:14:31,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2023-02-19 00:14:31,035 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-02-19 00:14:31,035 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-02-19 00:14:31,035 INFO L513 LassoAnalysis]: Proved termination. [2023-02-19 00:14:31,036 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_f_~a#1) = 1*ULTIMATE.start_f_~a#1 Supporting invariants [] [2023-02-19 00:14:31,042 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 [2023-02-19 00:14:31,044 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-02-19 00:14:31,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-19 00:14:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-19 00:14:31,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 2 conjunts are in the unsatisfiable core [2023-02-19 00:14:31,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-19 00:14:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-19 00:14:31,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-19 00:14:31,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-19 00:14:31,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-19 00:14:31,141 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 [2023-02-19 00:14:31,142 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-19 00:14:31,173 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 25 states and 29 transitions. Complement of second has 7 states. [2023-02-19 00:14:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-02-19 00:14:31,179 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) [2023-02-19 00:14:31,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2023-02-19 00:14:31,180 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 3 letters. [2023-02-19 00:14:31,181 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-19 00:14:31,181 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 5 letters. Loop has 3 letters. [2023-02-19 00:14:31,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-19 00:14:31,182 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 6 letters. [2023-02-19 00:14:31,182 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-02-19 00:14:31,183 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 29 transitions. [2023-02-19 00:14:31,186 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-19 00:14:31,187 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 0 states and 0 transitions. [2023-02-19 00:14:31,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-02-19 00:14:31,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-02-19 00:14:31,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-02-19 00:14:31,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-02-19 00:14:31,189 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-19 00:14:31,189 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-19 00:14:31,189 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-19 00:14:31,189 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-02-19 00:14:31,189 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-02-19 00:14:31,190 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-02-19 00:14:31,190 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-02-19 00:14:31,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.02 12:14:31 BoogieIcfgContainer [2023-02-19 00:14:31,196 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-02-19 00:14:31,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-19 00:14:31,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-19 00:14:31,197 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-19 00:14:31,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 12:14:30" (3/4) ... [2023-02-19 00:14:31,199 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-19 00:14:31,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-19 00:14:31,201 INFO L158 Benchmark]: Toolchain (without parser) took 1413.37ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 91.5MB in the beginning and 111.1MB in the end (delta: -19.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2023-02-19 00:14:31,201 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 127.9MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:14:31,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 130.38ms. Allocated memory is still 127.9MB. Free memory was 91.2MB in the beginning and 82.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-19 00:14:31,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.80ms. Allocated memory is still 127.9MB. Free memory was 82.1MB in the beginning and 80.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-19 00:14:31,204 INFO L158 Benchmark]: Boogie Preprocessor took 15.72ms. Allocated memory is still 127.9MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 919.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:14:31,204 INFO L158 Benchmark]: RCFGBuilder took 264.15ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 94.7MB in the end (delta: -15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-19 00:14:31,205 INFO L158 Benchmark]: BuchiAutomizer took 974.37ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 94.7MB in the beginning and 112.1MB in the end (delta: -17.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2023-02-19 00:14:31,205 INFO L158 Benchmark]: Witness Printer took 2.60ms. Allocated memory is still 155.2MB. Free memory was 112.1MB in the beginning and 111.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-19 00:14:31,207 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 127.9MB. Free memory is still 101.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 130.38ms. Allocated memory is still 127.9MB. Free memory was 91.2MB in the beginning and 82.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.80ms. Allocated memory is still 127.9MB. Free memory was 82.1MB in the beginning and 80.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.72ms. Allocated memory is still 127.9MB. Free memory was 80.7MB in the beginning and 79.7MB in the end (delta: 919.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.15ms. Allocated memory is still 127.9MB. Free memory was 79.7MB in the beginning and 94.7MB in the end (delta: -15.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 974.37ms. Allocated memory was 127.9MB in the beginning and 155.2MB in the end (delta: 27.3MB). Free memory was 94.7MB in the beginning and 112.1MB in the end (delta: -17.4MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 2.60ms. Allocated memory is still 155.2MB. Free memory was 112.1MB in the beginning and 111.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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 a and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. 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, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 7 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital53 mio100 ax100 hnf100 lsp122 ukn100 mio100 lsp100 div138 bol100 ite100 ukn100 eq164 hnf97 smp100 dnf619 smp100 tf100 neg97 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 184ms VariablesStem: 0 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 16 SupportingInvariants: 0 MotzkinApplications: 32 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 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! [2023-02-19 00:14:31,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2023-02-19 00:14:31,419 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