./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-acceleration/array_2-2-simple.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-acceleration/array_2-2-simple.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 c189c1cb91ea61745da6126e2d9c114f6ae511079741dc75bc227de256009336 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 15:07:29,734 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 15:07:29,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 15:07:29,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 15:07:29,780 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 15:07:29,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 15:07:29,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 15:07:29,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 15:07:29,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 15:07:29,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 15:07:29,792 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 15:07:29,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 15:07:29,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 15:07:29,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 15:07:29,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 15:07:29,801 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 15:07:29,802 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 15:07:29,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 15:07:29,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 15:07:29,810 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 15:07:29,812 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 15:07:29,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 15:07:29,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 15:07:29,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 15:07:29,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 15:07:29,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 15:07:29,823 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 15:07:29,823 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 15:07:29,825 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 15:07:29,825 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 15:07:29,826 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 15:07:29,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 15:07:29,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 15:07:29,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 15:07:29,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 15:07:29,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 15:07:29,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 15:07:29,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 15:07:29,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 15:07:29,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 15:07:29,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 15:07:29,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 15:07:29,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-23 15:07:29,858 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 15:07:29,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 15:07:29,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 15:07:29,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 15:07:29,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 15:07:29,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 15:07:29,861 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 15:07:29,861 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 15:07:29,862 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 15:07:29,862 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 15:07:29,863 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 15:07:29,863 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 15:07:29,863 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 15:07:29,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 15:07:29,863 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-23 15:07:29,864 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 15:07:29,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 15:07:29,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-23 15:07:29,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 15:07:29,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 15:07:29,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 15:07:29,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 15:07:29,865 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-23 15:07:29,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 15:07:29,865 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 15:07:29,865 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 15:07:29,866 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 15:07:29,866 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 15:07:29,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 15:07:29,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 15:07:29,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 15:07:29,867 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 15:07:29,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c189c1cb91ea61745da6126e2d9c114f6ae511079741dc75bc227de256009336 [2022-07-23 15:07:30,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 15:07:30,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 15:07:30,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 15:07:30,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 15:07:30,103 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 15:07:30,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2022-07-23 15:07:30,162 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae8bd697d/6b0d8a04926f4be5a1aed0803af10b38/FLAG6a21530c1 [2022-07-23 15:07:30,527 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 15:07:30,527 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2022-07-23 15:07:30,533 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae8bd697d/6b0d8a04926f4be5a1aed0803af10b38/FLAG6a21530c1 [2022-07-23 15:07:30,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae8bd697d/6b0d8a04926f4be5a1aed0803af10b38 [2022-07-23 15:07:30,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 15:07:30,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 15:07:30,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 15:07:30,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 15:07:30,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 15:07:30,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2d3620 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30, skipping insertion in model container [2022-07-23 15:07:30,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 15:07:30,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 15:07:30,725 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/array_2-2-simple.i[809,822] [2022-07-23 15:07:30,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:07:30,744 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 15:07:30,755 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/array_2-2-simple.i[809,822] [2022-07-23 15:07:30,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 15:07:30,772 INFO L208 MainTranslator]: Completed translation [2022-07-23 15:07:30,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30 WrapperNode [2022-07-23 15:07:30,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 15:07:30,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 15:07:30,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 15:07:30,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 15:07:30,779 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,802 INFO L137 Inliner]: procedures = 16, calls = 17, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 44 [2022-07-23 15:07:30,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 15:07:30,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 15:07:30,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 15:07:30,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 15:07:30,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,819 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 15:07:30,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 15:07:30,822 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 15:07:30,822 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 15:07:30,823 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (1/1) ... [2022-07-23 15:07:30,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:30,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:07:30,848 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 15:07:30,850 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 15:07:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 15:07:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 15:07:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 15:07:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 15:07:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 15:07:30,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 15:07:30,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 15:07:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 15:07:30,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 15:07:30,948 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 15:07:30,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 15:07:31,092 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 15:07:31,097 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 15:07:31,097 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 15:07:31,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:07:31 BoogieIcfgContainer [2022-07-23 15:07:31,099 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 15:07:31,099 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 15:07:31,100 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 15:07:31,102 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 15:07:31,103 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:07:31,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 03:07:30" (1/3) ... [2022-07-23 15:07:31,104 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61052404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:07:31, skipping insertion in model container [2022-07-23 15:07:31,104 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:07:31,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 03:07:30" (2/3) ... [2022-07-23 15:07:31,105 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@61052404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 03:07:31, skipping insertion in model container [2022-07-23 15:07:31,105 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 15:07:31,105 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:07:31" (3/3) ... [2022-07-23 15:07:31,106 INFO L354 chiAutomizerObserver]: Analyzing ICFG array_2-2-simple.i [2022-07-23 15:07:31,154 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 15:07:31,154 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 15:07:31,154 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 15:07:31,154 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 15:07:31,154 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 15:07:31,154 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 15:07:31,154 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 15:07:31,154 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 15:07:31,158 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:07:31,171 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 15:07:31,171 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:07:31,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:07:31,176 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 15:07:31,176 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 15:07:31,176 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 15:07:31,176 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:07:31,177 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-07-23 15:07:31,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 15:07:31,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 15:07:31,178 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 15:07:31,178 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-23 15:07:31,184 INFO L752 eck$LassoCheckResult]: Stem: 3#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(12, 2); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~mem2#1, main_#t~post1#1, main_#t~mem3#1, main_#t~mem4#1, main_~#A~0#1.base, main_~#A~0#1.offset, main_~#B~0#1.base, main_~#B~0#1.offset, main_~i~0#1, main_~tmp~0#1;call main_~#A~0#1.base, main_~#A~0#1.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#A~0#1.base);call write~unchecked~int(0, main_~#A~0#1.base, main_~#A~0#1.offset, 4);call main_~#B~0#1.base, main_~#B~0#1.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#B~0#1.base);call write~unchecked~int(0, main_~#B~0#1.base, main_~#B~0#1.offset, 4);havoc main_~i~0#1;havoc main_~tmp~0#1;main_~i~0#1 := 0; 7#L24-3true [2022-07-23 15:07:31,185 INFO L754 eck$LassoCheckResult]: Loop: 7#L24-3true assume !!(main_~i~0#1 < 2048);call main_#t~mem2#1 := read~int(main_~#A~0#1.base, main_~#A~0#1.offset + 4 * main_~i~0#1, 4);main_~tmp~0#1 := main_#t~mem2#1;havoc main_#t~mem2#1;call write~int(main_~tmp~0#1, main_~#B~0#1.base, main_~#B~0#1.offset + 4 * main_~i~0#1, 4); 4#L24-2true main_#t~post1#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post1#1;havoc main_#t~post1#1; 7#L24-3true [2022-07-23 15:07:31,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:07:31,191 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 15:07:31,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:07:31,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920284296] [2022-07-23 15:07:31,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:07:31,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:07:31,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:07:31,321 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:07:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:07:31,370 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:07:31,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:07:31,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2022-07-23 15:07:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:07:31,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583811454] [2022-07-23 15:07:31,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:07:31,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:07:31,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:07:31,402 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:07:31,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:07:31,422 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:07:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:07:31,424 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2022-07-23 15:07:31,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 15:07:31,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107190041] [2022-07-23 15:07:31,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 15:07:31,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 15:07:31,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:07:31,468 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 15:07:31,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 15:07:31,516 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 15:07:32,011 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 15:07:32,012 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 15:07:32,012 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 15:07:32,012 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 15:07:32,012 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-23 15:07:32,013 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:32,013 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 15:07:32,013 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 15:07:32,013 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-2-simple.i_Iteration1_Lasso [2022-07-23 15:07:32,014 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 15:07:32,014 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 15:07:32,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,375 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,391 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 15:07:32,698 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 15:07:32,702 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-23 15:07:32,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:32,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:07:32,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:07:32,721 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-23 15:07:32,721 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 15:07:32,732 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 15:07:32,733 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 15:07:32,733 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 15:07:32,733 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 15:07:32,737 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 15:07:32,738 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 15:07:32,753 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 15:07:32,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-07-23 15:07:32,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:32,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:07:32,784 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:07:32,790 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 15:07:32,798 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 15:07:32,799 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 15:07:32,799 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 15:07:32,799 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 15:07:32,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-23 15:07:32,807 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 15:07:32,807 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 15:07:32,825 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 15:07:32,843 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-07-23 15:07:32,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:32,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:07:32,844 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:07:32,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-23 15:07:32,846 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 15:07:32,855 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 15:07:32,855 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 15:07:32,855 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 15:07:32,855 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 15:07:32,858 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 15:07:32,859 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 15:07:32,883 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-23 15:07:32,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-23 15:07:32,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:32,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:07:32,909 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:07:32,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-07-23 15:07:32,912 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-23 15:07:32,920 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-23 15:07:32,921 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-23 15:07:32,921 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-23 15:07:32,921 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-23 15:07:32,928 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-23 15:07:32,928 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-23 15:07:32,943 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-23 15:07:32,985 INFO L443 ModelExtractionUtils]: Simplification made 11 calls to the SMT solver. [2022-07-23 15:07:32,985 INFO L444 ModelExtractionUtils]: 7 out of 19 variables were initially zero. Simplification set additionally 9 variables to zero. [2022-07-23 15:07:32,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 15:07:32,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 15:07:33,011 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-23 15:07:33,018 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-23 15:07:33,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-07-23 15:07:33,037 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2022-07-23 15:07:33,037 INFO L513 LassoAnalysis]: Proved termination. [2022-07-23 15:07:33,038 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#B~0#1.base)_1, ULTIMATE.start_main_~i~0#1) = 4095*v_rep(select #length ULTIMATE.start_main_~#B~0#1.base)_1 - 8*ULTIMATE.start_main_~i~0#1 Supporting invariants [] [2022-07-23 15:07:33,067 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-07-23 15:07:33,097 INFO L293 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2022-07-23 15:07:33,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 15:07:33,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:07:33,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-23 15:07:33,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 15:07:33,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 15:07:33,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-23 15:07:33,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-23 15:07:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-23 15:07:33,262 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-23 15:07:33,264 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:07:33,318 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 24 states and 30 transitions. Complement of second has 8 states. [2022-07-23 15:07:33,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2022-07-23 15:07:33,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-23 15:07:33,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2022-07-23 15:07:33,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2022-07-23 15:07:33,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 15:07:33,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2022-07-23 15:07:33,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 15:07:33,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2022-07-23 15:07:33,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-23 15:07:33,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2022-07-23 15:07:33,336 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 15:07:33,338 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2022-07-23 15:07:33,339 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-23 15:07:33,339 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-23 15:07:33,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-23 15:07:33,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-23 15:07:33,342 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 15:07:33,342 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 15:07:33,342 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-23 15:07:33,343 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-23 15:07:33,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-23 15:07:33,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-23 15:07:33,343 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-23 15:07:33,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.07 03:07:33 BoogieIcfgContainer [2022-07-23 15:07:33,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-23 15:07:33,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-23 15:07:33,351 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-23 15:07:33,352 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-23 15:07:33,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 03:07:31" (3/4) ... [2022-07-23 15:07:33,355 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-23 15:07:33,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-23 15:07:33,356 INFO L158 Benchmark]: Toolchain (without parser) took 2807.44ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 48.7MB in the end (delta: 22.1MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-07-23 15:07:33,357 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:07:33,358 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.97ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 78.9MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:07:33,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.56ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 77.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:07:33,363 INFO L158 Benchmark]: Boogie Preprocessor took 17.56ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 76.2MB in the end (delta: 912.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-23 15:07:33,365 INFO L158 Benchmark]: RCFGBuilder took 277.33ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 66.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-23 15:07:33,366 INFO L158 Benchmark]: BuchiAutomizer took 2250.98ms. Allocated memory is still 102.8MB. Free memory was 65.7MB in the beginning and 48.7MB in the end (delta: 17.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2022-07-23 15:07:33,366 INFO L158 Benchmark]: Witness Printer took 3.82ms. Allocated memory is still 102.8MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-23 15:07:33,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 79.7MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 28.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.97ms. Allocated memory is still 102.8MB. Free memory was 70.9MB in the beginning and 78.9MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.56ms. Allocated memory is still 102.8MB. Free memory was 78.9MB in the beginning and 77.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.56ms. Allocated memory is still 102.8MB. Free memory was 77.1MB in the beginning and 76.2MB in the end (delta: 912.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.33ms. Allocated memory is still 102.8MB. Free memory was 76.2MB in the beginning and 66.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 2250.98ms. Allocated memory is still 102.8MB. Free memory was 65.7MB in the beginning and 48.7MB in the end (delta: 17.0MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * Witness Printer took 3.82ms. Allocated memory is still 102.8MB. Free memory is still 48.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -8 * i + 4095 * unknown-#length-unknown[B] and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 4 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital191 mio100 ax100 hnf100 lsp96 ukn68 mio100 lsp43 div100 bol100 ite100 ukn100 eq161 hnf92 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 50ms VariablesStem: 2 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-07-23 15:07:33,407 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-07-23 15:07:33,616 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 Result: TRUE