./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-acceleration/phases_2-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6c24879c 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-acceleration/phases_2-1.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 40774f15dea268138f2179cc2f832c9729515e75ef9c65e50e7b347c749bb02c --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-13 03:59:38,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 03:59:38,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 03:59:38,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 03:59:38,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 03:59:38,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 03:59:38,883 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 03:59:38,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 03:59:38,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 03:59:38,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 03:59:38,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 03:59:38,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 03:59:38,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 03:59:38,888 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 03:59:38,889 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 03:59:38,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 03:59:38,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 03:59:38,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 03:59:38,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 03:59:38,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 03:59:38,894 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 03:59:38,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 03:59:38,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 03:59:38,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 03:59:38,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 03:59:38,903 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 03:59:38,905 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 03:59:38,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 03:59:38,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 03:59:38,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 03:59:38,907 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 03:59:38,907 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 03:59:38,907 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 03:59:38,908 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 03:59:38,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 03:59:38,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 03:59:38,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 03:59:38,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 03:59:38,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 03:59:38,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 03:59:38,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 03:59:38,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 03:59:38,912 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-13 03:59:38,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 03:59:38,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 03:59:38,927 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 03:59:38,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 03:59:38,928 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 03:59:38,928 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 03:59:38,928 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 03:59:38,928 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-13 03:59:38,929 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-13 03:59:38,929 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-13 03:59:38,929 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-13 03:59:38,929 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-13 03:59:38,929 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-13 03:59:38,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 03:59:38,930 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-13 03:59:38,930 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 03:59:38,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 03:59:38,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-13 03:59:38,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 03:59:38,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 03:59:38,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-13 03:59:38,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 03:59:38,932 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 03:59:38,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 03:59:38,932 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 03:59:38,933 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-13 03:59:38,933 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40774f15dea268138f2179cc2f832c9729515e75ef9c65e50e7b347c749bb02c [2022-07-13 03:59:39,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 03:59:39,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 03:59:39,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 03:59:39,092 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 03:59:39,093 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 03:59:39,094 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/phases_2-1.c [2022-07-13 03:59:39,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec708eee5/1c0b1e298437435c86306f94f446c087/FLAGa3cc731c3 [2022-07-13 03:59:39,524 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 03:59:39,524 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/phases_2-1.c [2022-07-13 03:59:39,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec708eee5/1c0b1e298437435c86306f94f446c087/FLAGa3cc731c3 [2022-07-13 03:59:39,540 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec708eee5/1c0b1e298437435c86306f94f446c087 [2022-07-13 03:59:39,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 03:59:39,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 03:59:39,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 03:59:39,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 03:59:39,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 03:59:39,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5218f38b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39, skipping insertion in model container [2022-07-13 03:59:39,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 03:59:39,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 03:59:39,703 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-acceleration/phases_2-1.c[459,472] [2022-07-13 03:59:39,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:59:39,723 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 03:59:39,733 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-acceleration/phases_2-1.c[459,472] [2022-07-13 03:59:39,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 03:59:39,750 INFO L208 MainTranslator]: Completed translation [2022-07-13 03:59:39,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39 WrapperNode [2022-07-13 03:59:39,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 03:59:39,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 03:59:39,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 03:59:39,752 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 03:59:39,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,775 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-07-13 03:59:39,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 03:59:39,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 03:59:39,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 03:59:39,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 03:59:39,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,795 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 03:59:39,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 03:59:39,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 03:59:39,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 03:59:39,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (1/1) ... [2022-07-13 03:59:39,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-13 03:59:39,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:59:39,827 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) [2022-07-13 03:59:39,881 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 [2022-07-13 03:59:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-13 03:59:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-13 03:59:39,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 03:59:39,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 03:59:39,947 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 03:59:39,949 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 03:59:40,062 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 03:59:40,067 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 03:59:40,067 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-13 03:59:40,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:59:40 BoogieIcfgContainer [2022-07-13 03:59:40,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 03:59:40,069 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-13 03:59:40,069 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-13 03:59:40,072 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-13 03:59:40,072 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:59:40,073 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.07 03:59:39" (1/3) ... [2022-07-13 03:59:40,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12710d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:59:40, skipping insertion in model container [2022-07-13 03:59:40,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:59:40,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 03:59:39" (2/3) ... [2022-07-13 03:59:40,074 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12710d55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.07 03:59:40, skipping insertion in model container [2022-07-13 03:59:40,074 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-13 03:59:40,074 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:59:40" (3/3) ... [2022-07-13 03:59:40,075 INFO L354 chiAutomizerObserver]: Analyzing ICFG phases_2-1.c [2022-07-13 03:59:40,121 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-13 03:59:40,121 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-13 03:59:40,122 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-13 03:59:40,122 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-13 03:59:40,122 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-13 03:59:40,122 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-13 03:59:40,122 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-13 03:59:40,122 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-13 03:59:40,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2022-07-13 03:59:40,138 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:59:40,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:59:40,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:59:40,142 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:59:40,142 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:59:40,143 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-13 03:59:40,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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) [2022-07-13 03:59:40,145 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-13 03:59:40,145 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-13 03:59:40,145 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-13 03:59:40,146 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-13 03:59:40,146 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-13 03:59:40,151 INFO L752 eck$LassoCheckResult]: Stem: 4#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(13, 2);call #Ultimate.allocInit(12, 3); 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~x~0#1, main_~y~0#1;main_~x~0#1 := 1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 7#L21true assume !!(main_~y~0#1 % 4294967296 > 0); 5#L24-2true [2022-07-13 03:59:40,151 INFO L754 eck$LassoCheckResult]: Loop: 5#L24-2true assume !!(main_~x~0#1 % 4294967296 < main_~y~0#1 % 4294967296); 9#L24true assume main_~x~0#1 % 4294967296 < (if main_~y~0#1 % 4294967296 < 0 && 0 != main_~y~0#1 % 4294967296 % (main_~x~0#1 % 4294967296) then (if main_~x~0#1 % 4294967296 < 0 then main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296) - 1 else 1 + main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296)) else main_~y~0#1 % 4294967296 / (main_~x~0#1 % 4294967296)) % 4294967296;main_~x~0#1 := main_~x~0#1 * main_~x~0#1; 5#L24-2true [2022-07-13 03:59:40,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:59:40,155 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2022-07-13 03:59:40,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:59:40,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608099831] [2022-07-13 03:59:40,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:59:40,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:59:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:59:40,232 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:59:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:59:40,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:59:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:59:40,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1476, now seen corresponding path program 1 times [2022-07-13 03:59:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:59:40,263 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556748719] [2022-07-13 03:59:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:59:40,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:59:40,274 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 03:59:40,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1490670854] [2022-07-13 03:59:40,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:59:40,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:59:40,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:59:40,297 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:59:40,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 03:59:40,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:59:40,374 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:59:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:59:40,380 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:59:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 03:59:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash 28695975, now seen corresponding path program 1 times [2022-07-13 03:59:40,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 03:59:40,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401433857] [2022-07-13 03:59:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:59:40,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 03:59:40,387 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-13 03:59:40,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1451761613] [2022-07-13 03:59:40,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 03:59:40,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 03:59:40,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 03:59:40,389 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 03:59:40,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 03:59:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:59:40,447 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-13 03:59:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-13 03:59:40,457 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-13 03:59:40,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.07 03:59:40 BoogieIcfgContainer [2022-07-13 03:59:40,644 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-13 03:59:40,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-13 03:59:40,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-13 03:59:40,645 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-13 03:59:40,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 03:59:40" (3/4) ... [2022-07-13 03:59:40,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-13 03:59:40,664 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-13 03:59:40,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-13 03:59:40,665 INFO L158 Benchmark]: Toolchain (without parser) took 1122.22ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 52.2MB in the beginning and 73.1MB in the end (delta: -20.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:59:40,666 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 22.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:59:40,666 INFO L158 Benchmark]: CACSL2BoogieTranslator took 206.52ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 52.1MB in the beginning and 83.7MB in the end (delta: -31.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-07-13 03:59:40,667 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.01ms. Allocated memory is still 107.0MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:59:40,667 INFO L158 Benchmark]: Boogie Preprocessor took 20.32ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 81.4MB in the end (delta: 683.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:59:40,667 INFO L158 Benchmark]: RCFGBuilder took 271.38ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 72.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-13 03:59:40,668 INFO L158 Benchmark]: BuchiAutomizer took 574.69ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 74.7MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-13 03:59:40,668 INFO L158 Benchmark]: Witness Printer took 20.10ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 73.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-13 03:59:40,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 86.0MB. Free memory was 57.7MB in the beginning and 57.6MB in the end (delta: 22.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 206.52ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 52.1MB in the beginning and 83.7MB in the end (delta: -31.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.01ms. Allocated memory is still 107.0MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.32ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 81.4MB in the end (delta: 683.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 271.38ms. Allocated memory is still 107.0MB. Free memory was 81.1MB in the beginning and 72.6MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 574.69ms. Allocated memory is still 107.0MB. Free memory was 72.3MB in the beginning and 74.7MB in the end (delta: -2.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 20.10ms. Allocated memory is still 107.0MB. Free memory was 74.7MB in the beginning and 73.1MB in the end (delta: 1.6MB). 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: 23]: 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 {y=4294967298, x=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ad8d294=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@5eb6e148=0, NULL=1, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L18] unsigned int x = 1; [L19] unsigned int y = __VERIFIER_nondet_uint(); [L21] COND FALSE !(!(y > 0)) Loop: [L23] COND TRUE x < y [L24] COND TRUE x < y / x [L25] x *= x End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-13 03:59:40,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 03:59:40,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 03:59:41,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)