./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/eca-rers2012/Problem02_label18.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_label18.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 10ce6084b8eacd2d18483cb628f6c5abd6a714796c8d3c0285d28c3b447f089d --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:07:48,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:07:48,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:07:48,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:07:48,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:07:48,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:07:48,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:07:48,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:07:48,071 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:07:48,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:07:48,073 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:07:48,073 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:07:48,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:07:48,074 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:07:48,075 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:07:48,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:07:48,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:07:48,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:07:48,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:07:48,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:07:48,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:07:48,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:07:48,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:07:48,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:07:48,096 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:07:48,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:07:48,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:07:48,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:07:48,112 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:07:48,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:07:48,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:07:48,113 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:07:48,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:07:48,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:07:48,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:07:48,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:07:48,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:07:48,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:07:48,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:07:48,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:07:48,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:07:48,117 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:07:48,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:07:48,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:07:48,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:07:48,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:07:48,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:07:48,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:07:48,137 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:07:48,137 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:07:48,137 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:07:48,137 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:07:48,138 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:07:48,138 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:07:48,138 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:07:48,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:07:48,139 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:07:48,139 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:07:48,139 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:07:48,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:07:48,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:07:48,140 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:07:48,140 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:07:48,140 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:07:48,140 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:07:48,140 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:07:48,141 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:07:48,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:07:48,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:07:48,141 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:07:48,141 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:07:48,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:07:48,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:07:48,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:07:48,143 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:07:48,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10ce6084b8eacd2d18483cb628f6c5abd6a714796c8d3c0285d28c3b447f089d [2021-12-15 17:07:48,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:07:48,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:07:48,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:07:48,372 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:07:48,373 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:07:48,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem02_label18.c [2021-12-15 17:07:48,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd84bbb1/c665a7e1fb08485b9ac176a965a603fd/FLAGad6a37104 [2021-12-15 17:07:48,925 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:07:48,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem02_label18.c [2021-12-15 17:07:48,944 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd84bbb1/c665a7e1fb08485b9ac176a965a603fd/FLAGad6a37104 [2021-12-15 17:07:49,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fd84bbb1/c665a7e1fb08485b9ac176a965a603fd [2021-12-15 17:07:49,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:07:49,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:07:49,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:07:49,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:07:49,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:07:49,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e59b84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49, skipping insertion in model container [2021-12-15 17:07:49,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:07:49,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:07:49,480 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_label18.c[19853,19866] [2021-12-15 17:07:49,498 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:07:49,504 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:07:49,561 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_label18.c[19853,19866] [2021-12-15 17:07:49,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:07:49,579 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:07:49,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49 WrapperNode [2021-12-15 17:07:49,580 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:07:49,580 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:07:49,580 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:07:49,580 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:07:49,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,654 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 666 [2021-12-15 17:07:49,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:07:49,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:07:49,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:07:49,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:07:49,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:07:49,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:07:49,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:07:49,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:07:49,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (1/1) ... [2021-12-15 17:07:49,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:07:49,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:07:49,728 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 17:07:49,755 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 17:07:49,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:07:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:07:49,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:07:49,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:07:49,837 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:07:49,839 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:07:50,469 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:07:50,478 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:07:50,479 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:07:50,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:07:50 BoogieIcfgContainer [2021-12-15 17:07:50,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:07:50,483 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:07:50,483 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:07:50,485 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:07:50,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:50,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:07:49" (1/3) ... [2021-12-15 17:07:50,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50ca561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:07:50, skipping insertion in model container [2021-12-15 17:07:50,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:50,487 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:49" (2/3) ... [2021-12-15 17:07:50,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@50ca561c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:07:50, skipping insertion in model container [2021-12-15 17:07:50,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:50,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:07:50" (3/3) ... [2021-12-15 17:07:50,489 INFO L388 chiAutomizerObserver]: Analyzing ICFG Problem02_label18.c [2021-12-15 17:07:50,525 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:07:50,525 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:07:50,526 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:07:50,526 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:07:50,526 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:07:50,526 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:07:50,526 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:07:50,526 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:07:50,544 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 17:07:50,582 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 221 [2021-12-15 17:07:50,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:50,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:50,589 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:50,589 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:07:50,589 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:07:50,592 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 17:07:50,604 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 221 [2021-12-15 17:07:50,604 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:50,604 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:50,606 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:50,616 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:07:50,621 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 17:07:50,622 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 17:07:50,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:50,626 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:07:50,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:50,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899037198] [2021-12-15 17:07:50,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:50,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:50,698 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:50,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:50,736 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:50,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:50,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1268139, now seen corresponding path program 1 times [2021-12-15 17:07:50,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:50,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781202085] [2021-12-15 17:07:50,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:50,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:50,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:50,758 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:50,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:50,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:50,779 INFO L85 PathProgramCache]: Analyzing trace with hash 889695341, now seen corresponding path program 1 times [2021-12-15 17:07:50,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:50,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739182438] [2021-12-15 17:07:50,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:50,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:50,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:07:50,852 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 17:07:50,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:07:50,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739182438] [2021-12-15 17:07:50,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739182438] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:07:50,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:07:50,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:07:50,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45128317] [2021-12-15 17:07:50,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:07:51,024 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 17:07:51,031 INFO L158 Benchmark]: Toolchain (without parser) took 1785.93ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 64.9MB in the beginning and 77.1MB in the end (delta: -12.2MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2021-12-15 17:07:51,032 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:07:51,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.95ms. Allocated memory is still 92.3MB. Free memory was 64.7MB in the beginning and 39.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-15 17:07:51,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.95ms. Allocated memory is still 92.3MB. Free memory was 39.0MB in the beginning and 66.1MB in the end (delta: -27.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-12-15 17:07:51,033 INFO L158 Benchmark]: Boogie Preprocessor took 41.71ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 61.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:07:51,034 INFO L158 Benchmark]: RCFGBuilder took 785.05ms. Allocated memory is still 92.3MB. Free memory was 61.8MB in the beginning and 41.4MB in the end (delta: 20.4MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2021-12-15 17:07:51,035 INFO L158 Benchmark]: BuchiAutomizer took 546.26ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 41.0MB in the beginning and 77.1MB in the end (delta: -36.1MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2021-12-15 17:07:51,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 73.4MB. Free memory is still 41.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.95ms. Allocated memory is still 92.3MB. Free memory was 64.7MB in the beginning and 39.0MB in the end (delta: 25.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.95ms. Allocated memory is still 92.3MB. Free memory was 39.0MB in the beginning and 66.1MB in the end (delta: -27.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.71ms. Allocated memory is still 92.3MB. Free memory was 66.1MB in the beginning and 61.8MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 785.05ms. Allocated memory is still 92.3MB. Free memory was 61.8MB in the beginning and 41.4MB in the end (delta: 20.4MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 546.26ms. Allocated memory was 92.3MB in the beginning and 130.0MB in the end (delta: 37.7MB). Free memory was 41.0MB in the beginning and 77.1MB in the end (delta: -36.1MB). Peak memory consumption was 2.2MB. 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 17:07:51,076 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 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