./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/gj2007b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf 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/loop-lit/gj2007b.i -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 d6c7a19e50bb32a5896b861b4b348ab0b4232809 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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: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 02:46:17,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 02:46:17,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 02:46:17,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 02:46:17,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 02:46:17,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 02:46:17,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 02:46:17,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 02:46:17,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 02:46:17,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 02:46:17,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 02:46:17,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 02:46:17,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 02:46:17,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 02:46:17,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 02:46:17,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 02:46:17,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 02:46:17,928 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 02:46:17,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 02:46:17,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 02:46:17,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 02:46:17,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 02:46:17,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 02:46:17,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 02:46:17,943 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 02:46:17,943 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 02:46:17,943 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 02:46:17,945 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 02:46:17,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 02:46:17,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 02:46:17,946 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 02:46:17,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 02:46:17,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 02:46:17,948 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 02:46:17,951 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 02:46:17,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 02:46:17,952 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 02:46:17,952 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 02:46:17,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 02:46:17,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 02:46:17,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 02:46:17,962 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 02:46:17,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 02:46:17,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 02:46:17,992 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 02:46:17,992 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 02:46:17,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 02:46:17,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 02:46:17,993 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 02:46:17,994 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 02:46:17,994 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 02:46:17,994 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 02:46:17,994 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 02:46:17,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 02:46:17,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 02:46:17,995 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 02:46:17,995 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 02:46:17,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 02:46:17,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 02:46:17,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 02:46:17,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 02:46:17,996 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 02:46:17,997 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 02:46:17,997 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 02:46:17,997 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 02:46:17,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 02:46:17,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 02:46:17,997 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 02:46:18,013 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 02:46:18,013 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6c7a19e50bb32a5896b861b4b348ab0b4232809 [2021-08-31 02:46:18,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 02:46:18,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 02:46:18,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 02:46:18,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 02:46:18,327 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 02:46:18,328 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gj2007b.i [2021-08-31 02:46:18,368 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac68966b/d9505326750742c9ba7f8b39194e66bf/FLAGc80cea3e7 [2021-08-31 02:46:18,764 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 02:46:18,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007b.i [2021-08-31 02:46:18,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac68966b/d9505326750742c9ba7f8b39194e66bf/FLAGc80cea3e7 [2021-08-31 02:46:19,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eac68966b/d9505326750742c9ba7f8b39194e66bf [2021-08-31 02:46:19,195 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 02:46:19,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 02:46:19,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 02:46:19,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 02:46:19,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 02:46:19,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f902d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19, skipping insertion in model container [2021-08-31 02:46:19,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 02:46:19,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 02:46:19,302 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-08-31 02:46:19,306 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:46:19,313 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 02:46:19,323 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gj2007b.i[895,908] [2021-08-31 02:46:19,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:46:19,367 INFO L208 MainTranslator]: Completed translation [2021-08-31 02:46:19,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19 WrapperNode [2021-08-31 02:46:19,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 02:46:19,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 02:46:19,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 02:46:19,369 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 02:46:19,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,377 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 02:46:19,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 02:46:19,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 02:46:19,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 02:46:19,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 02:46:19,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 02:46:19,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 02:46:19,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 02:46:19,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (1/1) ... [2021-08-31 02:46:19,407 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:19,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:19,420 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) [2021-08-31 02:46:19,438 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 [2021-08-31 02:46:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 02:46:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 02:46:19,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 02:46:19,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 02:46:19,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 02:46:19,560 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-08-31 02:46:19,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:46:19 BoogieIcfgContainer [2021-08-31 02:46:19,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 02:46:19,562 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 02:46:19,562 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 02:46:19,564 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 02:46:19,565 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:46:19,565 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 02:46:19" (1/3) ... [2021-08-31 02:46:19,566 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fb0aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:46:19, skipping insertion in model container [2021-08-31 02:46:19,566 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:46:19,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:46:19" (2/3) ... [2021-08-31 02:46:19,567 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1fb0aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:46:19, skipping insertion in model container [2021-08-31 02:46:19,567 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:46:19,567 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:46:19" (3/3) ... [2021-08-31 02:46:19,568 INFO L389 chiAutomizerObserver]: Analyzing ICFG gj2007b.i [2021-08-31 02:46:19,606 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 02:46:19,607 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 02:46:19,607 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 02:46:19,607 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 02:46:19,607 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 02:46:19,607 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 02:46:19,607 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 02:46:19,607 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 02:46:19,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-08-31 02:46:19,640 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 02:46:19,641 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:46:19,641 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:46:19,644 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:46:19,644 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 02:46:19,644 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 02:46:19,644 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2021-08-31 02:46:19,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2021-08-31 02:46:19,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:46:19,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:46:19,646 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:46:19,647 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-08-31 02:46:19,652 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 9#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~nondet4, main_~x~0, main_~m~0, main_~n~0;main_~x~0 := 0;main_~m~0 := 0;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 8#L28-2true [2021-08-31 02:46:19,652 INFO L793 eck$LassoCheckResult]: Loop: 8#L28-2true assume !!(main_~x~0 < main_~n~0); 7#L29true assume !(0 != main_#t~nondet4);havoc main_#t~nondet4; 16#L29-2true main_~x~0 := 1 + main_~x~0; 8#L28-2true [2021-08-31 02:46:19,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:46:19,656 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-31 02:46:19,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:46:19,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260037995] [2021-08-31 02:46:19,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:46:19,662 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:46:19,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:46:19,724 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:46:19,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:46:19,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:46:19,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:46:19,761 INFO L82 PathProgramCache]: Analyzing trace with hash 40876, now seen corresponding path program 1 times [2021-08-31 02:46:19,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:46:19,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961408688] [2021-08-31 02:46:19,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:46:19,763 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:46:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:46:19,771 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:46:19,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:46:19,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:46:19,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:46:19,778 INFO L82 PathProgramCache]: Analyzing trace with hash 28699818, now seen corresponding path program 1 times [2021-08-31 02:46:19,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:46:19,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362554288] [2021-08-31 02:46:19,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:46:19,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:46:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:46:19,791 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:46:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:46:19,808 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:46:19,895 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:46:19,898 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:46:19,898 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:46:19,898 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:46:19,898 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:46:19,898 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:19,899 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:46:19,899 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:46:19,899 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007b.i_Iteration1_Loop [2021-08-31 02:46:19,899 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:46:19,912 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:46:19,921 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:46:19,926 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:46:19,974 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:46:19,974 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:46:19,976 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:19,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:19,989 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) [2021-08-31 02:46:19,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:46:19,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:46:20,006 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 [2021-08-31 02:46:20,017 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:46:20,017 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:46:20,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2021-08-31 02:46:20,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:20,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:20,038 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) [2021-08-31 02:46:20,039 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 [2021-08-31 02:46:20,041 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:46:20,041 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:46:20,082 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 [2021-08-31 02:46:20,083 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:20,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:20,084 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) [2021-08-31 02:46:20,085 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 [2021-08-31 02:46:20,086 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:46:20,086 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:46:20,191 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:46:20,197 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 [2021-08-31 02:46:20,197 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:46:20,197 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:46:20,197 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:46:20,197 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:46:20,197 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:46:20,197 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:20,197 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:46:20,197 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:46:20,197 INFO L133 ssoRankerPreferences]: Filename of dumped script: gj2007b.i_Iteration1_Loop [2021-08-31 02:46:20,197 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:46:20,197 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:46:20,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:46:20,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-31 02:46:20,226 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:46:20,229 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:46:20,230 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:20,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:20,231 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) [2021-08-31 02:46:20,232 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 [2021-08-31 02:46:20,233 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 [2021-08-31 02:46:20,240 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:46:20,240 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:46:20,241 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:46:20,241 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:46:20,241 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:46:20,242 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:46:20,242 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:46:20,257 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:46:20,275 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 [2021-08-31 02:46:20,275 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:20,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:20,276 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) [2021-08-31 02:46:20,277 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 [2021-08-31 02:46:20,278 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 [2021-08-31 02:46:20,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:46:20,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:46:20,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:46:20,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:46:20,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:46:20,287 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:46:20,287 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:46:20,301 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:46:20,306 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2021-08-31 02:46:20,306 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 02:46:20,307 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:46:20,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:46:20,321 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) [2021-08-31 02:46:20,322 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 [2021-08-31 02:46:20,322 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:46:20,323 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:46:20,323 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:46:20,323 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2021-08-31 02:46:20,340 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 [2021-08-31 02:46:20,342 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:46:20,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:46:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:46:20,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:46:20,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:46:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:46:20,378 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:46:20,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:46:20,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 02:46:20,417 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-31 02:46:20,418 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-08-31 02:46:20,486 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 38 states and 48 transitions. Complement of second has 7 states. [2021-08-31 02:46:20,489 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 [2021-08-31 02:46:20,490 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 [2021-08-31 02:46:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-08-31 02:46:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2021-08-31 02:46:20,495 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 3 letters. [2021-08-31 02:46:20,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:46:20,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 5 letters. Loop has 3 letters. [2021-08-31 02:46:20,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:46:20,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 30 transitions. Stem has 2 letters. Loop has 6 letters. [2021-08-31 02:46:20,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:46:20,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 38 states and 48 transitions. [2021-08-31 02:46:20,499 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:46:20,500 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 38 states to 0 states and 0 transitions. [2021-08-31 02:46:20,501 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 02:46:20,501 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 02:46:20,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 02:46:20,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:46:20,502 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:46:20,502 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:46:20,502 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:46:20,502 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 02:46:20,502 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 02:46:20,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:46:20,502 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 02:46:20,504 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) 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) [2021-08-31 02:46:20,506 INFO L158 Benchmark]: Toolchain (without parser) took 1309.51ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 43.8MB in the beginning and 52.3MB in the end (delta: -8.5MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-08-31 02:46:20,506 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.3MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:46:20,507 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.57ms. Allocated memory is still 58.7MB. Free memory was 43.6MB in the beginning and 43.0MB in the end (delta: 622.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-31 02:46:20,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.70ms. Allocated memory is still 58.7MB. Free memory was 42.8MB in the beginning and 41.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:46:20,508 INFO L158 Benchmark]: Boogie Preprocessor took 11.58ms. Allocated memory is still 58.7MB. Free memory was 41.4MB in the beginning and 40.4MB in the end (delta: 948.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 02:46:20,508 INFO L158 Benchmark]: RCFGBuilder took 159.55ms. Allocated memory is still 58.7MB. Free memory was 40.3MB in the beginning and 32.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 02:46:20,509 INFO L158 Benchmark]: BuchiAutomizer took 943.03ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 32.2MB in the beginning and 52.3MB in the end (delta: -20.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:46:20,510 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 28.3MB in the beginning and 28.3MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.57ms. Allocated memory is still 58.7MB. Free memory was 43.6MB in the beginning and 43.0MB in the end (delta: 622.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.70ms. Allocated memory is still 58.7MB. Free memory was 42.8MB in the beginning and 41.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 11.58ms. Allocated memory is still 58.7MB. Free memory was 41.4MB in the beginning and 40.4MB in the end (delta: 948.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 159.55ms. Allocated memory is still 58.7MB. Free memory was 40.3MB in the beginning and 32.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 943.03ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 32.2MB in the beginning and 52.3MB in the end (delta: -20.1MB). 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 n + -1 * x and consists of 5 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 02:46:20,540 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...