./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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-invgen/SpamAssassin-loop.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 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:08:43,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:08:43,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:08:43,843 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:08:43,843 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:08:43,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:08:43,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:08:43,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:08:43,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:08:43,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:08:43,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:08:43,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:08:43,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:08:43,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:08:43,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:08:43,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:08:43,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:08:43,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:08:43,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:08:43,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:08:43,871 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:08:43,872 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:08:43,873 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:08:43,873 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:08:43,874 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:08:43,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:08:43,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:08:43,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:08:43,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:08:43,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:08:43,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:08:43,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:08:43,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:08:43,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:08:43,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:08:43,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:08:43,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:08:43,885 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:08:43,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:08:43,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:08:43,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:08:43,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:08:43,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:08:43,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:08:43,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:08:43,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:08:43,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:08:43,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:08:43,914 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:08:43,914 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:08:43,914 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:08:43,914 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:08:43,915 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:08:43,915 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:08:43,915 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:08:43,915 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:08:43,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:08:43,916 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:08:43,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:08:43,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:08:43,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:08:43,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:08:43,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:08:43,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:08:43,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:08:43,918 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:08:43,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:08:43,918 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:08:43,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:08:43,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:08:43,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:08:43,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:08:43,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:08:43,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:08:43,920 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:08:43,920 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2022-07-23 15:08:44,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:08:44,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:08:44,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:08:44,116 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:08:44,116 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:08:44,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2022-07-23 15:08:44,163 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/551be764c/80482deb5d204a299cc41dfb1cd482e4/FLAG60db89e4b [2022-07-23 15:08:44,533 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:08:44,533 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2022-07-23 15:08:44,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/551be764c/80482deb5d204a299cc41dfb1cd482e4/FLAG60db89e4b [2022-07-23 15:08:44,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/551be764c/80482deb5d204a299cc41dfb1cd482e4 [2022-07-23 15:08:44,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:08:44,954 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:08:44,955 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:08:44,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:08:44,958 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:08:44,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:08:44" (1/1) ... [2022-07-23 15:08:44,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c7544b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:44, skipping insertion in model container [2022-07-23 15:08:44,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:08:44" (1/1) ... [2022-07-23 15:08:44,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:08:44,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:08:45,110 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2022-07-23 15:08:45,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:08:45,125 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:08:45,133 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i[893,906] [2022-07-23 15:08:45,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:08:45,150 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:08:45,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45 WrapperNode [2022-07-23 15:08:45,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:08:45,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:08:45,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:08:45,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:08:45,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,192 INFO L137 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 172 [2022-07-23 15:08:45,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:08:45,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:08:45,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:08:45,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:08:45,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:08:45,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:08:45,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:08:45,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:08:45,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (1/1) ... [2022-07-23 15:08:45,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:08:45,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:08:45,236 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) [2022-07-23 15:08:45,263 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 [2022-07-23 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:08:45,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:08:45,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:08:45,318 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:08:45,319 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:08:45,445 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:08:45,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:08:45,450 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-23 15:08:45,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:08:45 BoogieIcfgContainer [2022-07-23 15:08:45,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:08:45,452 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:08:45,452 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:08:45,463 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:08:45,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:08:45,464 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:08:44" (1/3) ... [2022-07-23 15:08:45,465 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27a7bc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:08:45, skipping insertion in model container [2022-07-23 15:08:45,465 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:08:45,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:08:45" (2/3) ... [2022-07-23 15:08:45,466 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27a7bc7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:08:45, skipping insertion in model container [2022-07-23 15:08:45,466 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:08:45,466 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:08:45" (3/3) ... [2022-07-23 15:08:45,467 INFO L354 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2022-07-23 15:08:45,506 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:08:45,519 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:08:45,519 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:08:45,519 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:08:45,520 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:08:45,520 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:08:45,520 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:08:45,520 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:08:45,523 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 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) [2022-07-23 15:08:45,553 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-07-23 15:08:45,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:08:45,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:08:45,557 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 15:08:45,558 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 15:08:45,558 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:08:45,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 60 states, 59 states have (on average 1.3898305084745763) internal successors, (82), 59 states have internal predecessors, (82), 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) [2022-07-23 15:08:45,567 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-07-23 15:08:45,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:08:45,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:08:45,583 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-23 15:08:45,584 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 15:08:45,588 INFO L752 eck$LassoCheckResult]: Stem: 51#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 40#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~len~0#1, main_~i~0#1, main_~j~0#1, main_~bufsize~0#1, main_~limit~0#1;havoc main_~len~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~bufsize~0#1;main_~bufsize~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 7#L31true assume !(main_~bufsize~0#1 < 0);main_~len~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~limit~0#1 := main_~bufsize~0#1 - 4;main_~i~0#1 := 0; 41#L34-2true [2022-07-23 15:08:45,591 INFO L754 eck$LassoCheckResult]: Loop: 41#L34-2true assume !!(main_~i~0#1 < main_~len~0#1);main_~j~0#1 := 0; 17#L35-2true assume !(main_~i~0#1 < main_~len~0#1 && main_~j~0#1 < main_~limit~0#1); 41#L34-2true [2022-07-23 15:08:45,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:08:45,596 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-07-23 15:08:45,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:08:45,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866451388] [2022-07-23 15:08:45,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:08:45,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:08:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:08:45,675 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:08:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:08:45,711 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:08:45,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:08:45,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2022-07-23 15:08:45,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:08:45,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [252267569] [2022-07-23 15:08:45,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:08:45,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:08:45,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:08:45,730 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:08:45,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:08:45,738 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:08:45,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:08:45,740 INFO L85 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2022-07-23 15:08:45,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:08:45,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381034581] [2022-07-23 15:08:45,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:08:45,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:08:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:08:45,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:08:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:08:45,791 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:08:46,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:08:46 BoogieIcfgContainer [2022-07-23 15:08:46,018 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:08:46,019 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:08:46,019 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:08:46,019 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:08:46,020 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:08:45" (3/4) ... [2022-07-23 15:08:46,021 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-23 15:08:46,043 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-23 15:08:46,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:08:46,048 INFO L158 Benchmark]: Toolchain (without parser) took 1089.61ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 52.7MB in the beginning and 70.7MB in the end (delta: -17.9MB). Peak memory consumption was 59.1kB. Max. memory is 16.1GB. [2022-07-23 15:08:46,049 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 57.7MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:08:46,050 INFO L158 Benchmark]: CACSL2BoogieTranslator took 196.81ms. Allocated memory is still 86.0MB. Free memory was 52.5MB in the beginning and 62.7MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:08:46,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.54ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 60.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:08:46,052 INFO L158 Benchmark]: Boogie Preprocessor took 13.60ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 59.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:08:46,052 INFO L158 Benchmark]: RCFGBuilder took 244.59ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 47.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-23 15:08:46,053 INFO L158 Benchmark]: BuchiAutomizer took 566.51ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 72.7MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:08:46,054 INFO L158 Benchmark]: Witness Printer took 24.56ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:08:46,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 57.7MB in the end (delta: 18.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 196.81ms. Allocated memory is still 86.0MB. Free memory was 52.5MB in the beginning and 62.7MB in the end (delta: -10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.54ms. Allocated memory is still 86.0MB. Free memory was 62.7MB in the beginning and 60.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 13.60ms. Allocated memory is still 86.0MB. Free memory was 60.7MB in the beginning and 59.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 244.59ms. Allocated memory is still 86.0MB. Free memory was 59.5MB in the beginning and 47.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 566.51ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 72.7MB in the end (delta: -25.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 24.56ms. Allocated memory is still 104.9MB. Free memory was 72.7MB in the beginning and 70.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5792bc20=0, j=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@1e251589=0, len=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@55956e04=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32db3d21=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@6abd49fd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f77a7a3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@41d0b59e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@529eb6e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3bf156c3=0, NULL=1, limit=-4, \result=0, bufsize=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@7d8854dd=0, i=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-23 15:08:46,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)