./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 03:23:10,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 03:23:10,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 03:23:10,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 03:23:10,787 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 03:23:10,787 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 03:23:10,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 03:23:10,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 03:23:10,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 03:23:10,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 03:23:10,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 03:23:10,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 03:23:10,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 03:23:10,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 03:23:10,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 03:23:10,796 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 03:23:10,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 03:23:10,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 03:23:10,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 03:23:10,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 03:23:10,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 03:23:10,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 03:23:10,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 03:23:10,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 03:23:10,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 03:23:10,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 03:23:10,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 03:23:10,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 03:23:10,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 03:23:10,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 03:23:10,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 03:23:10,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 03:23:10,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 03:23:10,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 03:23:10,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 03:23:10,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 03:23:10,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 03:23:10,830 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 03:23:10,830 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 03:23:10,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 03:23:10,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 03:23:10,832 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-02-21 03:23:10,851 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 03:23:10,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 03:23:10,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 03:23:10,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 03:23:10,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 03:23:10,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 03:23:10,854 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 03:23:10,855 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 03:23:10,855 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 03:23:10,855 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 03:23:10,855 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 03:23:10,856 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 03:23:10,856 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 03:23:10,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 03:23:10,856 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 03:23:10,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 03:23:10,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 03:23:10,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 03:23:10,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 03:23:10,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 03:23:10,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 03:23:10,857 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 03:23:10,857 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 03:23:10,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 03:23:10,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 03:23:10,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 03:23:10,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 03:23:10,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 03:23:10,859 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 03:23:10,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2022-02-21 03:23:11,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 03:23:11,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 03:23:11,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 03:23:11,126 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 03:23:11,127 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 03:23:11,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2022-02-21 03:23:11,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4567ef61f/f9f935e44a544c7d974dc9c274b8be98/FLAG5733bcdb2 [2022-02-21 03:23:11,543 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 03:23:11,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2022-02-21 03:23:11,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4567ef61f/f9f935e44a544c7d974dc9c274b8be98/FLAG5733bcdb2 [2022-02-21 03:23:11,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4567ef61f/f9f935e44a544c7d974dc9c274b8be98 [2022-02-21 03:23:11,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 03:23:11,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 03:23:11,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 03:23:11,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 03:23:11,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 03:23:11,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad02d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11, skipping insertion in model container [2022-02-21 03:23:11,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 03:23:11,589 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 03:23:11,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:23:11,772 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 03:23:11,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 03:23:11,811 INFO L208 MainTranslator]: Completed translation [2022-02-21 03:23:11,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11 WrapperNode [2022-02-21 03:23:11,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 03:23:11,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 03:23:11,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 03:23:11,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 03:23:11,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,842 INFO L137 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2022-02-21 03:23:11,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 03:23:11,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 03:23:11,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 03:23:11,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 03:23:11,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,857 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,867 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 03:23:11,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 03:23:11,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 03:23:11,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 03:23:11,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (1/1) ... [2022-02-21 03:23:11,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 03:23:11,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 03:23:11,899 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) [2022-02-21 03:23:11,919 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 [2022-02-21 03:23:11,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-21 03:23:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 03:23:11,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 03:23:11,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-21 03:23:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-21 03:23:11,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-21 03:23:11,994 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 03:23:11,995 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 03:23:12,094 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 03:23:12,098 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 03:23:12,098 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-21 03:23:12,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:23:12 BoogieIcfgContainer [2022-02-21 03:23:12,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 03:23:12,100 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 03:23:12,100 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 03:23:12,102 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 03:23:12,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:23:12,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 03:23:11" (1/3) ... [2022-02-21 03:23:12,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3660dee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:23:12, skipping insertion in model container [2022-02-21 03:23:12,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:23:12,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:23:11" (2/3) ... [2022-02-21 03:23:12,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3660dee1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 03:23:12, skipping insertion in model container [2022-02-21 03:23:12,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 03:23:12,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:23:12" (3/3) ... [2022-02-21 03:23:12,105 INFO L388 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2022-02-21 03:23:12,192 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 03:23:12,192 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 03:23:12,192 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 03:23:12,192 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 03:23:12,192 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 03:23:12,193 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 03:23:12,193 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 03:23:12,193 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 03:23:12,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-02-21 03:23:12,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-02-21 03:23:12,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:23:12,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:23:12,238 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:23:12,238 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2022-02-21 03:23:12,238 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 03:23:12,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-02-21 03:23:12,242 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-02-21 03:23:12,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 03:23:12,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 03:23:12,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2022-02-21 03:23:12,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2022-02-21 03:23:12,248 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem2#1, main_#t~nondet3#1, main_#t~mem1#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);call write~int(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 7#L13-3true [2022-02-21 03:23:12,248 INFO L793 eck$LassoCheckResult]: Loop: 7#L13-3true call main_#t~mem1#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 4#L13-1true assume !!(main_#t~mem1#1 >= 0);havoc main_#t~mem1#1;call main_#t~mem2#1 := read~int(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;call write~int(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1; 7#L13-3true [2022-02-21 03:23:12,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:12,254 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-02-21 03:23:12,262 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:23:12,262 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181003701] [2022-02-21 03:23:12,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:23:12,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:23:12,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:12,342 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:23:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:12,370 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:23:12,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:12,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2022-02-21 03:23:12,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:23:12,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112167341] [2022-02-21 03:23:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:23:12,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:23:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:12,395 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:23:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:12,402 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:23:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 03:23:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2022-02-21 03:23:12,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 03:23:12,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240155862] [2022-02-21 03:23:12,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 03:23:12,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 03:23:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:12,426 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 03:23:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 03:23:12,441 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 03:23:12,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 03:23:12 BoogieIcfgContainer [2022-02-21 03:23:12,695 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 03:23:12,695 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 03:23:12,696 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 03:23:12,696 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 03:23:12,697 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:23:12" (3/4) ... [2022-02-21 03:23:12,698 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 03:23:12,717 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 03:23:12,718 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 03:23:12,719 INFO L158 Benchmark]: Toolchain (without parser) took 1154.61ms. Allocated memory is still 98.6MB. Free memory was 62.8MB in the beginning and 70.4MB in the end (delta: -7.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:23:12,719 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 98.6MB. Free memory was 78.8MB in the beginning and 78.7MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:23:12,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.16ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 75.8MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 03:23:12,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.20ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 74.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 03:23:12,721 INFO L158 Benchmark]: Boogie Preprocessor took 31.14ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 73.2MB in the end (delta: 943.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:23:12,721 INFO L158 Benchmark]: RCFGBuilder took 223.71ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 63.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-21 03:23:12,721 INFO L158 Benchmark]: BuchiAutomizer took 595.02ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 71.8MB in the end (delta: -8.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-02-21 03:23:12,722 INFO L158 Benchmark]: Witness Printer took 22.40ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 03:23:12,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 98.6MB. Free memory was 78.8MB in the beginning and 78.7MB in the end (delta: 43.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.16ms. Allocated memory is still 98.6MB. Free memory was 62.6MB in the beginning and 75.8MB in the end (delta: -13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.20ms. Allocated memory is still 98.6MB. Free memory was 75.8MB in the beginning and 74.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.14ms. Allocated memory is still 98.6MB. Free memory was 74.2MB in the beginning and 73.2MB in the end (delta: 943.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 223.71ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 63.7MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 595.02ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 71.8MB in the end (delta: -8.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 22.40ms. Allocated memory is still 98.6MB. Free memory was 71.8MB in the beginning and 70.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program 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 - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 13]: 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.CASTArraySubscriptExpression@751630d2=0, NULL=0, NULL=0, a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTArraySubscriptExpression@1abed87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d2b37ec=31111, NULL=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55495729=0, a=2} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 03:23:12,759 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)