./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/trex02-1.c --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/loops/trex02-1.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 ba176e8a5492e3864a1c4f794c773bd5c3a3465f ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:40:58,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 02:40:58,883 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 02:40:58,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 02:40:58,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 02:40:58,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 02:40:58,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 02:40:58,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 02:40:58,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 02:40:58,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 02:40:58,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 02:40:58,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 02:40:58,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 02:40:58,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 02:40:58,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 02:40:58,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 02:40:58,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 02:40:58,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 02:40:58,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 02:40:58,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 02:40:58,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 02:40:58,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 02:40:58,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 02:40:58,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 02:40:58,979 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 02:40:58,979 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 02:40:58,980 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 02:40:58,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 02:40:58,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 02:40:58,983 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 02:40:58,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 02:40:58,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 02:40:58,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 02:40:58,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 02:40:58,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 02:40:58,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 02:40:58,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 02:40:58,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 02:40:58,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 02:40:58,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 02:40:58,990 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 02:40:58,991 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 02:40:59,029 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 02:40:59,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 02:40:59,030 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 02:40:59,031 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 02:40:59,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 02:40:59,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 02:40:59,033 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 02:40:59,033 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 02:40:59,034 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 02:40:59,034 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 02:40:59,035 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 02:40:59,035 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 02:40:59,035 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 02:40:59,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 02:40:59,036 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 02:40:59,036 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 02:40:59,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 02:40:59,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 02:40:59,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 02:40:59,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 02:40:59,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 02:40:59,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 02:40:59,037 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 02:40:59,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 02:40:59,038 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 02:40:59,038 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 02:40:59,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 02:40:59,038 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 02:40:59,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 02:40:59,039 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 02:40:59,039 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 02:40:59,039 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 02:40:59,041 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 02:40:59,041 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba176e8a5492e3864a1c4f794c773bd5c3a3465f [2021-08-31 02:40:59,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 02:40:59,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 02:40:59,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 02:40:59,430 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 02:40:59,431 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 02:40:59,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/trex02-1.c [2021-08-31 02:40:59,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3393bb1/b0ae2808dbd44c2ca5834730638d3a9d/FLAGb1545ca32 [2021-08-31 02:40:59,874 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 02:40:59,874 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/trex02-1.c [2021-08-31 02:40:59,880 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3393bb1/b0ae2808dbd44c2ca5834730638d3a9d/FLAGb1545ca32 [2021-08-31 02:40:59,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d3393bb1/b0ae2808dbd44c2ca5834730638d3a9d [2021-08-31 02:40:59,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 02:40:59,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 02:40:59,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 02:40:59,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 02:40:59,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 02:40:59,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:40:59" (1/1) ... [2021-08-31 02:40:59,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f020ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:40:59, skipping insertion in model container [2021-08-31 02:40:59,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 02:40:59" (1/1) ... [2021-08-31 02:40:59,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 02:40:59,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 02:41:00,084 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/loops/trex02-1.c[320,333] [2021-08-31 02:41:00,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:41:00,102 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 02:41:00,111 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/loops/trex02-1.c[320,333] [2021-08-31 02:41:00,114 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 02:41:00,166 INFO L208 MainTranslator]: Completed translation [2021-08-31 02:41:00,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00 WrapperNode [2021-08-31 02:41:00,167 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 02:41:00,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 02:41:00,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 02:41:00,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 02:41:00,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,190 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,206 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 02:41:00,207 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 02:41:00,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 02:41:00,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 02:41:00,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,243 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 02:41:00,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 02:41:00,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 02:41:00,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 02:41:00,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (1/1) ... [2021-08-31 02:41:00,251 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:00,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:00,278 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 02:41:00,302 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 02:41:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 02:41:00,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 02:41:00,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 02:41:00,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 02:41:00,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 02:41:00,479 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-08-31 02:41:00,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:41:00 BoogieIcfgContainer [2021-08-31 02:41:00,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 02:41:00,482 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 02:41:00,482 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 02:41:00,485 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 02:41:00,486 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:41:00,486 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 02:40:59" (1/3) ... [2021-08-31 02:41:00,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44bad628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:41:00, skipping insertion in model container [2021-08-31 02:41:00,487 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:41:00,487 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 02:41:00" (2/3) ... [2021-08-31 02:41:00,487 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@44bad628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 02:41:00, skipping insertion in model container [2021-08-31 02:41:00,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 02:41:00,488 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 02:41:00" (3/3) ... [2021-08-31 02:41:00,489 INFO L389 chiAutomizerObserver]: Analyzing ICFG trex02-1.c [2021-08-31 02:41:00,532 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 02:41:00,532 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 02:41:00,532 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 02:41:00,532 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 02:41:00,533 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 02:41:00,533 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 02:41:00,533 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 02:41:00,533 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 02:41:00,544 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 02:41:00,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:41:00,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:41:00,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:41:00,562 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:41:00,562 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 02:41:00,562 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 02:41:00,563 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 02:41:00,564 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-31 02:41:00,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 02:41:00,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 02:41:00,564 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-31 02:41:00,564 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-31 02:41:00,572 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(11);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~x~0 := 0; 9#L-1true havoc main_#res;havoc main_#t~nondet8, main_#t~nondet9, main_~c~0;~x~0 := main_#t~nondet8;havoc main_#t~nondet8; 10#L17-1true [2021-08-31 02:41:00,572 INFO L793 eck$LassoCheckResult]: Loop: 10#L17-1true assume !!(~x~0 > 0);main_~c~0 := main_#t~nondet9;havoc main_#t~nondet9; 8#L25true assume !(0 != main_~c~0 % 256);havoc foo_#t~post7;foo_#t~post7 := ~x~0;~x~0 := foo_#t~post7 - 1;havoc foo_#t~post7; 10#L17-1true [2021-08-31 02:41:00,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:41:00,580 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-31 02:41:00,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:41:00,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295365447] [2021-08-31 02:41:00,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:41:00,589 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:41:00,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:41:00,697 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:41:00,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:41:00,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:41:00,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:41:00,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2021-08-31 02:41:00,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:41:00,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138344827] [2021-08-31 02:41:00,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:41:00,747 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:41:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:41:00,760 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:41:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:41:00,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:41:00,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:41:00,772 INFO L82 PathProgramCache]: Analyzing trace with hash 925801, now seen corresponding path program 1 times [2021-08-31 02:41:00,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 02:41:00,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462557431] [2021-08-31 02:41:00,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 02:41:00,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 02:41:00,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:41:00,800 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 02:41:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 02:41:00,829 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 02:41:00,946 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:41:00,946 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:41:00,946 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:41:00,946 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:41:00,946 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2021-08-31 02:41:00,946 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:00,947 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:41:00,947 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:41:00,947 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2021-08-31 02:41:00,947 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:41:00,947 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:41:00,966 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 02:41:01,004 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 02:41:01,007 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 02:41:01,093 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:41:01,094 INFO L404 LassoAnalysis]: Checking for nontermination... [2021-08-31 02:41:01,095 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,097 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 02:41:01,101 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:41:01,101 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:41:01,121 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 02:41:01,125 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:41:01,125 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=-256, ULTIMATE.start_main_#t~nondet9=-256} Honda state: {ULTIMATE.start_main_~c~0=-256, ULTIMATE.start_main_#t~nondet9=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:41:01,153 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 02:41:01,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,155 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 02:41:01,156 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 02:41:01,157 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:41:01,158 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:41:01,179 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2021-08-31 02:41:01,179 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_foo_#t~post7=0} Honda state: {ULTIMATE.start_foo_#t~post7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2021-08-31 02:41:01,204 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 02:41:01,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,209 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 02:41:01,214 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2021-08-31 02:41:01,214 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:41:01,224 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 02:41:01,259 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 02:41:01,260 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,261 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 02:41:01,275 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2021-08-31 02:41:01,275 INFO L160 nArgumentSynthesizer]: Using integer mode. [2021-08-31 02:41:01,280 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 02:41:01,321 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2021-08-31 02:41:01,326 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 02:41:01,326 INFO L210 LassoAnalysis]: Preferences: [2021-08-31 02:41:01,326 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-31 02:41:01,326 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-31 02:41:01,326 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-31 02:41:01,326 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-31 02:41:01,326 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,326 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-31 02:41:01,327 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-31 02:41:01,327 INFO L133 ssoRankerPreferences]: Filename of dumped script: trex02-1.c_Iteration1_Loop [2021-08-31 02:41:01,327 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-31 02:41:01,328 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-31 02:41:01,329 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 02:41:01,340 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 02:41:01,342 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 02:41:01,396 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-31 02:41:01,400 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-31 02:41:01,410 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,411 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 02:41:01,420 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 02:41:01,424 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 02:41:01,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:41:01,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:41:01,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:41:01,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:41:01,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:41:01,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:41:01,431 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:41:01,447 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:41:01,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2021-08-31 02:41:01,469 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,471 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 02:41:01,479 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 02:41:01,480 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 02:41:01,487 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:41:01,487 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:41:01,487 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:41:01,488 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:41:01,488 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:41:01,488 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:41:01,488 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:41:01,499 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-31 02:41:01,519 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 02:41:01,519 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,520 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:41:01,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-31 02:41:01,522 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 02:41:01,528 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-31 02:41:01,528 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-31 02:41:01,528 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-31 02:41:01,528 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-31 02:41:01,528 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-31 02:41:01,530 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-31 02:41:01,530 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-31 02:41:01,533 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-31 02:41:01,537 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2021-08-31 02:41:01,537 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2021-08-31 02:41:01,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 02:41:01,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 02:41:01,539 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 02:41:01,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-31 02:41:01,541 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-31 02:41:01,541 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2021-08-31 02:41:01,541 INFO L513 LassoAnalysis]: Proved termination. [2021-08-31 02:41:01,541 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(~x~0) = 1*~x~0 Supporting invariants [] [2021-08-31 02:41:01,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-31 02:41:01,561 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2021-08-31 02:41:01,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 02:41:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:41:01,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-31 02:41:01,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:41:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 02:41:01,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 9 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-31 02:41:01,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-31 02:41:01,641 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 02:41:01,664 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 02:41:01,665 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 02:41:01,708 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 10 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 9 states have internal predecessors, (13), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 24 states and 31 transitions. Complement of second has 7 states. [2021-08-31 02:41:01,709 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 02:41:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 02:41:01,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2021-08-31 02:41:01,715 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-31 02:41:01,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:41:01,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-31 02:41:01,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:41:01,716 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-31 02:41:01,716 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-31 02:41:01,717 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 31 transitions. [2021-08-31 02:41:01,719 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:41:01,721 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-08-31 02:41:01,722 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-31 02:41:01,722 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-31 02:41:01,722 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-31 02:41:01,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 02:41:01,722 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:41:01,723 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:41:01,723 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-31 02:41:01,723 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 02:41:01,723 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-31 02:41:01,723 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-31 02:41:01,723 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-31 02:41:01,725 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 02:41:01,728 INFO L158 Benchmark]: Toolchain (without parser) took 1824.14ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.8MB in the beginning and 38.1MB in the end (delta: -6.3MB). Peak memory consumption was 8.2MB. Max. memory is 16.1GB. [2021-08-31 02:41:01,729 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:41:01,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.49ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 53.6MB in the end (delta: -21.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-08-31 02:41:01,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.79ms. Allocated memory is still 69.2MB. Free memory was 53.6MB in the beginning and 52.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 02:41:01,730 INFO L158 Benchmark]: Boogie Preprocessor took 35.99ms. Allocated memory is still 69.2MB. Free memory was 52.1MB in the beginning and 51.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 02:41:01,731 INFO L158 Benchmark]: RCFGBuilder took 236.84ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 42.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-31 02:41:01,731 INFO L158 Benchmark]: BuchiAutomizer took 1245.29ms. Allocated memory is still 69.2MB. Free memory was 42.7MB in the beginning and 38.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2021-08-31 02:41:01,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 54.5MB. Free memory is still 36.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.49ms. Allocated memory was 54.5MB in the beginning and 69.2MB in the end (delta: 14.7MB). Free memory was 31.7MB in the beginning and 53.6MB in the end (delta: -21.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.79ms. Allocated memory is still 69.2MB. Free memory was 53.6MB in the beginning and 52.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.99ms. Allocated memory is still 69.2MB. Free memory was 52.1MB in the beginning and 51.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 236.84ms. Allocated memory is still 69.2MB. Free memory was 51.1MB in the beginning and 42.7MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1245.29ms. Allocated memory is still 69.2MB. Free memory was 42.7MB in the beginning and 38.1MB in the end (delta: 4.6MB). Peak memory consumption was 4.7MB. 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 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 02:41:01,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-31 02:41:01,973 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...