./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/eca-rers2012/Problem02_label50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 55cfdf74604724371a452c38b03dd4e25c32928e3cf25773bd571d9975e54b78 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:08:02,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:08:02,237 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:08:02,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:08:02,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:08:02,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:08:02,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:08:02,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:08:02,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:08:02,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:08:02,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:08:02,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:08:02,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:08:02,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:08:02,283 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:08:02,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:08:02,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:08:02,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:08:02,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:08:02,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:08:02,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:08:02,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:08:02,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:08:02,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:08:02,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:08:02,300 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:08:02,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:08:02,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:08:02,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:08:02,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:08:02,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:08:02,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:08:02,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:08:02,305 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:08:02,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:08:02,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:08:02,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:08:02,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:08:02,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:08:02,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:08:02,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:08:02,309 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:08:02,332 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:08:02,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:08:02,332 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:08:02,333 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:08:02,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:08:02,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:08:02,334 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:08:02,334 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:08:02,334 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:08:02,334 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:08:02,335 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:08:02,335 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:08:02,335 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:08:02,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:08:02,335 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:08:02,336 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:08:02,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:08:02,337 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:08:02,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:08:02,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:08:02,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:08:02,338 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:08:02,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:08:02,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:08:02,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:08:02,339 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:08:02,339 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 55cfdf74604724371a452c38b03dd4e25c32928e3cf25773bd571d9975e54b78 [2021-12-15 17:08:02,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:08:02,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:08:02,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:08:02,567 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:08:02,568 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:08:02,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label50.c [2021-12-15 17:08:02,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500454831/273204cd18d8407d9c43216046d2f42f/FLAGa87fa1c19 [2021-12-15 17:08:02,969 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:08:02,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label50.c [2021-12-15 17:08:02,996 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500454831/273204cd18d8407d9c43216046d2f42f/FLAGa87fa1c19 [2021-12-15 17:08:03,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500454831/273204cd18d8407d9c43216046d2f42f [2021-12-15 17:08:03,358 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:08:03,360 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:08:03,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:08:03,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:08:03,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:08:03,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b299e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03, skipping insertion in model container [2021-12-15 17:08:03,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:08:03,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:08:03,606 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label50.c[14631,14644] [2021-12-15 17:08:03,632 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:08:03,643 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:08:03,700 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label50.c[14631,14644] [2021-12-15 17:08:03,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:08:03,723 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:08:03,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03 WrapperNode [2021-12-15 17:08:03,724 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:08:03,725 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:08:03,725 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:08:03,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:08:03,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,805 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 666 [2021-12-15 17:08:03,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:08:03,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:08:03,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:08:03,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:08:03,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,862 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:08:03,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:08:03,864 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:08:03,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:08:03,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (1/1) ... [2021-12-15 17:08:03,869 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:08:03,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:08:03,900 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) [2021-12-15 17:08:03,947 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 [2021-12-15 17:08:03,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:08:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:08:03,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:08:03,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:08:04,024 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:08:04,025 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:08:04,536 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:08:04,545 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:08:04,545 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:08:04,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:08:04 BoogieIcfgContainer [2021-12-15 17:08:04,547 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:08:04,548 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:08:04,548 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:08:04,550 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:08:04,551 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:08:04,551 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:08:03" (1/3) ... [2021-12-15 17:08:04,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eafc0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:08:04, skipping insertion in model container [2021-12-15 17:08:04,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:08:04,552 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:08:03" (2/3) ... [2021-12-15 17:08:04,552 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eafc0a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:08:04, skipping insertion in model container [2021-12-15 17:08:04,552 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:08:04,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:08:04" (3/3) ... [2021-12-15 17:08:04,553 INFO L388 chiAutomizerObserver]: Analyzing ICFG Problem02_label50.c [2021-12-15 17:08:04,587 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:08:04,587 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:08:04,588 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:08:04,588 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:08:04,588 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:08:04,588 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:08:04,588 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:08:04,588 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:08:04,605 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 226 states, 225 states have (on average 1.6622222222222223) internal successors, (374), 225 states have internal predecessors, (374), 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) [2021-12-15 17:08:04,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 221 [2021-12-15 17:08:04,626 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:08:04,626 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:08:04,632 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:08:04,632 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:08:04,632 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:08:04,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 226 states, 225 states have (on average 1.6622222222222223) internal successors, (374), 225 states have internal predecessors, (374), 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) [2021-12-15 17:08:04,638 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 221 [2021-12-15 17:08:04,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:08:04,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:08:04,639 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:08:04,639 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:08:04,643 INFO L791 eck$LassoCheckResult]: Stem: 211#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3);~a~0 := 1;~e~0 := 5;~d~0 := 4;~f~0 := 6;~c~0 := 3;~u~0 := 21;~v~0 := 22;~w~0 := 23;~x~0 := 24;~y~0 := 25;~z~0 := 26;~a25~0 := 0;~a11~0 := 0;~a28~0 := 7;~a19~0 := 1;~a21~0 := 1;~a17~0 := 8; 149#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 104#L616-2true [2021-12-15 17:08:04,643 INFO L793 eck$LassoCheckResult]: Loop: 104#L616-2true assume !false;havoc main_~input~0#1;main_~input~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 51#L621true assume !((((1 != main_~input~0#1 && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 194#L40true assume ((!(1 == ~a11~0) && 1 == ~a19~0 && 4 == calculate_output_~input#1 && ((!(1 == ~a25~0) && 8 == ~a28~0) || (1 == ~a25~0 && 9 == ~a28~0))) && 1 == ~a21~0) && 8 == ~a17~0;~a28~0 := 9;~a11~0 := 1;~a25~0 := 1;calculate_output_#res#1 := -1; 26#L607true main_#t~ret7#1 := calculate_output_#res#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 104#L616-2true [2021-12-15 17:08:04,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:08:04,647 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:08:04,653 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:08:04,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643529375] [2021-12-15 17:08:04,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:08:04,654 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:08:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:04,713 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:08:04,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:04,746 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:08:04,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:08:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1268139, now seen corresponding path program 1 times [2021-12-15 17:08:04,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:08:04,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034783148] [2021-12-15 17:08:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:08:04,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:08:04,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:04,766 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:08:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:08:04,789 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:08:04,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:08:04,791 INFO L85 PathProgramCache]: Analyzing trace with hash 889695341, now seen corresponding path program 1 times [2021-12-15 17:08:04,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:08:04,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934421748] [2021-12-15 17:08:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:08:04,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:08:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:08:04,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:08:04,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:08:04,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934421748] [2021-12-15 17:08:04,883 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934421748] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:08:04,883 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:08:04,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:08:04,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208206251] [2021-12-15 17:08:04,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:08:05,044 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:834) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:08:05,050 INFO L158 Benchmark]: Toolchain (without parser) took 1689.37ms. Allocated memory was 121.6MB in the beginning and 197.1MB in the end (delta: 75.5MB). Free memory was 82.7MB in the beginning and 154.6MB in the end (delta: -71.8MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2021-12-15 17:08:05,051 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 121.6MB. Free memory was 101.0MB in the beginning and 101.0MB in the end (delta: 77.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:08:05,052 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.22ms. Allocated memory is still 121.6MB. Free memory was 82.6MB in the beginning and 81.6MB in the end (delta: 993.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 17:08:05,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.73ms. Allocated memory is still 121.6MB. Free memory was 81.6MB in the beginning and 76.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:08:05,053 INFO L158 Benchmark]: Boogie Preprocessor took 56.87ms. Allocated memory is still 121.6MB. Free memory was 76.1MB in the beginning and 71.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:08:05,054 INFO L158 Benchmark]: RCFGBuilder took 683.75ms. Allocated memory is still 121.6MB. Free memory was 71.8MB in the beginning and 64.2MB in the end (delta: 7.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2021-12-15 17:08:05,055 INFO L158 Benchmark]: BuchiAutomizer took 500.91ms. Allocated memory was 121.6MB in the beginning and 197.1MB in the end (delta: 75.5MB). Free memory was 64.2MB in the beginning and 154.6MB in the end (delta: -90.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:08:05,060 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 121.6MB. Free memory was 101.0MB in the beginning and 101.0MB in the end (delta: 77.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.22ms. Allocated memory is still 121.6MB. Free memory was 82.6MB in the beginning and 81.6MB in the end (delta: 993.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.73ms. Allocated memory is still 121.6MB. Free memory was 81.6MB in the beginning and 76.1MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.87ms. Allocated memory is still 121.6MB. Free memory was 76.1MB in the beginning and 71.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 683.75ms. Allocated memory is still 121.6MB. Free memory was 71.8MB in the beginning and 64.2MB in the end (delta: 7.7MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 500.91ms. Allocated memory was 121.6MB in the beginning and 197.1MB in the end (delta: 75.5MB). Free memory was 64.2MB in the beginning and 154.6MB in the end (delta: -90.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:08:05,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable