./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 20ed64ec 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 10989cc26eec6b69c73a920ae872e2b45d43bffe ......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 15:19:55,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:19:55,959 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:19:56,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:19:56,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:19:56,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:19:56,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:19:56,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:19:56,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:19:56,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:19:56,121 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:19:56,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:19:56,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:19:56,130 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:19:56,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:19:56,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:19:56,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:19:56,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:19:56,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:19:56,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:19:56,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:19:56,150 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:19:56,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:19:56,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:19:56,157 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:19:56,157 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:19:56,158 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:19:56,159 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:19:56,160 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:19:56,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:19:56,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:19:56,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:19:56,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:19:56,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:19:56,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:19:56,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:19:56,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:19:56,166 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:19:56,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:19:56,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:19:56,168 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:19:56,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:19:56,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:19:56,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:19:56,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:19:56,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:19:56,205 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:19:56,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:19:56,205 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:19:56,205 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:19:56,206 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:19:56,206 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:19:56,207 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:19:56,207 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:19:56,207 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:19:56,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:19:56,207 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:19:56,208 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:19:56,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:19:56,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:19:56,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:19:56,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:19:56,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:19:56,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:19:56,209 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:19:56,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:19:56,209 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:19:56,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:19:56,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:19:56,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:19:56,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:19:56,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:19:56,210 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:19:56,211 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:19:56,212 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:19:56,212 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10989cc26eec6b69c73a920ae872e2b45d43bffe [2021-08-27 15:19:56,510 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:19:56,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:19:56,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:19:56,540 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:19:56,541 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:19:56,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2021-08-27 15:19:56,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bc7c8f0/c619838e4fe44e32bf1b8214192830bb/FLAG3294f5a0c [2021-08-27 15:19:57,059 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:19:57,060 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i [2021-08-27 15:19:57,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bc7c8f0/c619838e4fe44e32bf1b8214192830bb/FLAG3294f5a0c [2021-08-27 15:19:57,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1bc7c8f0/c619838e4fe44e32bf1b8214192830bb [2021-08-27 15:19:57,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:19:57,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:19:57,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:19:57,476 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:19:57,479 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:19:57,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2061cf59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57, skipping insertion in model container [2021-08-27 15:19:57,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:19:57,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:19:57,654 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i[809,822] [2021-08-27 15:19:57,669 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:19:57,677 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:19:57,688 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-acceleration/array_2-2-simple.i[809,822] [2021-08-27 15:19:57,698 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:19:57,726 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:19:57,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57 WrapperNode [2021-08-27 15:19:57,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:19:57,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:19:57,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:19:57,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:19:57,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,777 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:19:57,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:19:57,779 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:19:57,779 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:19:57,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:19:57,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:19:57,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:19:57,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:19:57,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (1/1) ... [2021-08-27 15:19:57,826 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:57,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:19:57,846 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:19:57,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:19:57,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:19:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-08-27 15:19:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:19:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-27 15:19:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:19:57,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:19:57,892 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-27 15:19:57,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 15:19:58,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:19:58,162 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-27 15:19:58,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:19:58 BoogieIcfgContainer [2021-08-27 15:19:58,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:19:58,164 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:19:58,164 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:19:58,167 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:19:58,168 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:19:58,168 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:19:57" (1/3) ... [2021-08-27 15:19:58,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@686993f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:19:58, skipping insertion in model container [2021-08-27 15:19:58,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:19:58,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:19:57" (2/3) ... [2021-08-27 15:19:58,169 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@686993f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:19:58, skipping insertion in model container [2021-08-27 15:19:58,169 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:19:58,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:19:58" (3/3) ... [2021-08-27 15:19:58,171 INFO L389 chiAutomizerObserver]: Analyzing ICFG array_2-2-simple.i [2021-08-27 15:19:58,241 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:19:58,256 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:19:58,257 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:19:58,257 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:19:58,257 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:19:58,257 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:19:58,257 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:19:58,258 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:19:58,269 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) [2021-08-27 15:19:58,282 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:58,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:58,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:58,290 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:19:58,290 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:58,290 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:19:58,291 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) [2021-08-27 15:19:58,293 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2021-08-27 15:19:58,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:19:58,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:19:58,294 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:19:58,294 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2021-08-27 15:19:58,301 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(12); 7#L-1true havoc main_#res;havoc main_#t~mem4, main_#t~post3, main_#t~mem5, main_#t~mem6, main_~#A~0.base, main_~#A~0.offset, main_~#B~0.base, main_~#B~0.offset, main_~i~0, main_~tmp~0;call main_~#A~0.base, main_~#A~0.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#A~0.base);call write~unchecked~int(0, main_~#A~0.base, main_~#A~0.offset, 4);call main_~#B~0.base, main_~#B~0.offset := #Ultimate.allocOnStack(8192);#memory_int := ~initToZeroAtPointerBaseAddress~int(#memory_int, main_~#B~0.base);call write~unchecked~int(0, main_~#B~0.base, main_~#B~0.offset, 4);havoc main_~i~0;havoc main_~tmp~0;main_~i~0 := 0; 8#L24-3true [2021-08-27 15:19:58,301 INFO L793 eck$LassoCheckResult]: Loop: 8#L24-3true assume !!(main_~i~0 < 2048);call main_#t~mem4 := read~int(main_~#A~0.base, main_~#A~0.offset + 4 * main_~i~0, 4);main_~tmp~0 := main_#t~mem4;havoc main_#t~mem4;call write~int(main_~tmp~0, main_~#B~0.base, main_~#B~0.offset + 4 * main_~i~0, 4); 5#L24-2true main_#t~post3 := main_~i~0;main_~i~0 := 1 + main_#t~post3;havoc main_#t~post3; 8#L24-3true [2021-08-27 15:19:58,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:58,312 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:19:58,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:58,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601091984] [2021-08-27 15:19:58,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:58,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:58,406 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:58,444 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:58,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:58,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2021-08-27 15:19:58,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:58,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866370905] [2021-08-27 15:19:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:58,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:58,476 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:58,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:58,489 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:58,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:19:58,491 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-08-27 15:19:58,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:19:58,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374461456] [2021-08-27 15:19:58,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:19:58,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:19:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:58,517 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:19:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:19:58,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:19:59,380 INFO L210 LassoAnalysis]: Preferences: [2021-08-27 15:19:59,381 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2021-08-27 15:19:59,381 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2021-08-27 15:19:59,381 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2021-08-27 15:19:59,382 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2021-08-27 15:19:59,382 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:19:59,382 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2021-08-27 15:19:59,382 INFO L132 ssoRankerPreferences]: Path of dumped script: [2021-08-27 15:19:59,382 INFO L133 ssoRankerPreferences]: Filename of dumped script: array_2-2-simple.i_Iteration1_Lasso [2021-08-27 15:19:59,382 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2021-08-27 15:19:59,383 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2021-08-27 15:19:59,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,729 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:19:59,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2021-08-27 15:20:00,018 INFO L294 LassoAnalysis]: Preprocessing complete. [2021-08-27 15:20:00,021 INFO L490 LassoAnalysis]: Using template 'affine'. [2021-08-27 15:20:00,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,029 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2021-08-27 15:20:00,039 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,048 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:00,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,052 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:00,056 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:00,071 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:00,099 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2021-08-27 15:20:00,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,101 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2021-08-27 15:20:00,103 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,110 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,111 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2021-08-27 15:20:00,111 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,111 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,111 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,112 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2021-08-27 15:20:00,112 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2021-08-27 15:20:00,120 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:00,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:00,140 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2021-08-27 15:20:00,143 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,151 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,152 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,152 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,152 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,156 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:00,156 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:00,188 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:00,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:00,215 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,226 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,233 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,234 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,239 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:00,240 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:00,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2021-08-27 15:20:00,264 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:00,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:00,284 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2021-08-27 15:20:00,287 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,296 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:00,296 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:00,324 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:00,347 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 [2021-08-27 15:20:00,347 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,348 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,364 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,373 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,373 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,373 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,382 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:00,384 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:00,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2021-08-27 15:20:00,400 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2021-08-27 15:20:00,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:00,433 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,444 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2021-08-27 15:20:00,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2021-08-27 15:20:00,452 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2021-08-27 15:20:00,453 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2021-08-27 15:20:00,453 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2021-08-27 15:20:00,453 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2021-08-27 15:20:00,461 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2021-08-27 15:20:00,462 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2021-08-27 15:20:00,476 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2021-08-27 15:20:00,501 INFO L443 ModelExtractionUtils]: Simplification made 10 calls to the SMT solver. [2021-08-27 15:20:00,502 INFO L444 ModelExtractionUtils]: 4 out of 22 variables were initially zero. Simplification set additionally 15 variables to zero. [2021-08-27 15:20:00,503 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:20:00,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:20:00,517 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:20:00,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2021-08-27 15:20:00,581 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2021-08-27 15:20:00,613 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2021-08-27 15:20:00,614 INFO L513 LassoAnalysis]: Proved termination. [2021-08-27 15:20:00,614 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1, ULTIMATE.start_main_~i~0) = 4095*v_rep(select #length ULTIMATE.start_main_~#A~0.base)_1 - 8*ULTIMATE.start_main_~i~0 Supporting invariants [] [2021-08-27 15:20:00,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:00,682 INFO L297 tatePredicateManager]: 12 out of 12 supporting invariants were superfluous and have been removed [2021-08-27 15:20:00,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:20:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:00,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-27 15:20:00,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:20:00,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 15:20:00,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 15:20:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:20:00,859 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2021-08-27 15:20:00,861 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) [2021-08-27 15:20:00,861 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2021-08-27 15:20:00,904 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. [2021-08-27 15:20:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2021-08-27 15:20:00,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:20:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2021-08-27 15:20:00,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 2 letters. [2021-08-27 15:20:00,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:00,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2021-08-27 15:20:00,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:00,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 2 letters. Loop has 4 letters. [2021-08-27 15:20:00,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2021-08-27 15:20:00,909 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 30 transitions. [2021-08-27 15:20:00,911 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:20:00,913 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2021-08-27 15:20:00,913 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2021-08-27 15:20:00,914 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2021-08-27 15:20:00,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2021-08-27 15:20:00,914 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:20:00,914 INFO L681 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:20:00,914 INFO L704 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:20:00,914 INFO L587 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 15:20:00,914 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:20:00,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2021-08-27 15:20:00,914 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2021-08-27 15:20:00,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2021-08-27 15:20:00,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:20:00 BoogieIcfgContainer [2021-08-27 15:20:00,919 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:20:00,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:20:00,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:20:00,919 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:20:00,920 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:19:58" (3/4) ... [2021-08-27 15:20:00,922 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 15:20:00,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:20:00,924 INFO L168 Benchmark]: Toolchain (without parser) took 3448.75 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 37.5 MB in the beginning and 62.9 MB in the end (delta: -25.4 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:00,924 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 40.9 MB in the beginning and 40.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:00,925 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.90 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 43.1 MB in the end (delta: -5.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:00,926 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.81 ms. Allocated memory is still 58.7 MB. Free memory was 43.1 MB in the beginning and 41.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:00,926 INFO L168 Benchmark]: Boogie Preprocessor took 38.58 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 40.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:00,927 INFO L168 Benchmark]: RCFGBuilder took 345.28 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 27.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-27 15:20:00,927 INFO L168 Benchmark]: BuchiAutomizer took 2754.48 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 27.5 MB in the beginning and 62.9 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:00,927 INFO L168 Benchmark]: Witness Printer took 2.98 ms. Allocated memory is still 88.1 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:20:00,930 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory was 40.9 MB in the beginning and 40.9 MB in the end (delta: 42.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.90 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 43.1 MB in the end (delta: -5.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.81 ms. Allocated memory is still 58.7 MB. Free memory was 43.1 MB in the beginning and 41.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.58 ms. Allocated memory is still 58.7 MB. Free memory was 41.5 MB in the beginning and 40.4 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 345.28 ms. Allocated memory is still 58.7 MB. Free memory was 40.4 MB in the beginning and 27.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 2754.48 ms. Allocated memory was 58.7 MB in the beginning and 88.1 MB in the end (delta: 29.4 MB). Free memory was 27.5 MB in the beginning and 62.9 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 2.98 ms. Allocated memory is still 88.1 MB. Free memory is still 62.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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 4095 * unknown-#length-unknown[A] + -8 * i and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. 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 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 6 SDslu, 4 SDs, 0 SdLazy, 12 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.3ms Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital232 mio100 ax100 hnf100 lsp96 ukn48 mio100 lsp53 div100 bol100 ite100 ukn100 eq165 hnf91 smp100 dnf100 smp100 tf100 neg100 sie102 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 48ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2021-08-27 15:20:00,967 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...